./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product53_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_1ce0802c-ce45-4a81-9012-491b4de52d69/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1ce0802c-ce45-4a81-9012-491b4de52d69/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1ce0802c-ce45-4a81-9012-491b4de52d69/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1ce0802c-ce45-4a81-9012-491b4de52d69/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product53_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_1ce0802c-ce45-4a81-9012-491b4de52d69/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1ce0802c-ce45-4a81-9012-491b4de52d69/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 ae33dcba0147a107c551c432e2bfc2c49f1e3070 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 13:50:06,006 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 13:50:06,007 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 13:50:06,016 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 13:50:06,016 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 13:50:06,016 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 13:50:06,017 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 13:50:06,018 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 13:50:06,019 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 13:50:06,020 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 13:50:06,021 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 13:50:06,021 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 13:50:06,021 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 13:50:06,022 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 13:50:06,023 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 13:50:06,023 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 13:50:06,024 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 13:50:06,025 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 13:50:06,026 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 13:50:06,027 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 13:50:06,028 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 13:50:06,029 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 13:50:06,030 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 13:50:06,030 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 13:50:06,031 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 13:50:06,031 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 13:50:06,032 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 13:50:06,033 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 13:50:06,033 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 13:50:06,034 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 13:50:06,034 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 13:50:06,035 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 13:50:06,035 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 13:50:06,035 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 13:50:06,036 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 13:50:06,036 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 13:50:06,036 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1ce0802c-ce45-4a81-9012-491b4de52d69/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 13:50:06,046 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 13:50:06,046 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 13:50:06,046 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 13:50:06,047 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 13:50:06,047 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 13:50:06,047 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 13:50:06,047 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 13:50:06,047 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 13:50:06,047 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 13:50:06,047 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 13:50:06,048 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 13:50:06,048 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 13:50:06,048 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 13:50:06,048 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 13:50:06,048 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 13:50:06,049 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 13:50:06,049 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 13:50:06,049 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 13:50:06,049 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 13:50:06,049 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 13:50:06,049 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 13:50:06,049 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 13:50:06,049 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 13:50:06,050 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 13:50:06,050 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 13:50:06,050 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 13:50:06,050 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 13:50:06,050 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 13:50:06,050 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 13:50:06,051 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 13:50:06,051 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 13:50:06,051 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 13:50:06,051 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 13:50:06,051 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 13:50:06,051 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 13:50:06,051 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 13:50:06,051 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 13:50:06,052 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_1ce0802c-ce45-4a81-9012-491b4de52d69/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 -> ae33dcba0147a107c551c432e2bfc2c49f1e3070 [2018-11-18 13:50:06,077 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 13:50:06,086 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 13:50:06,088 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 13:50:06,089 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 13:50:06,090 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 13:50:06,090 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1ce0802c-ce45-4a81-9012-491b4de52d69/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product53_true-unreach-call_false-termination.cil.c [2018-11-18 13:50:06,135 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1ce0802c-ce45-4a81-9012-491b4de52d69/bin-2019/utaipan/data/eb16fdd0b/b089cc4bf58f4df298f19012f422aca6/FLAG832a6d770 [2018-11-18 13:50:06,510 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 13:50:06,510 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1ce0802c-ce45-4a81-9012-491b4de52d69/sv-benchmarks/c/product-lines/minepump_spec4_product53_true-unreach-call_false-termination.cil.c [2018-11-18 13:50:06,519 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1ce0802c-ce45-4a81-9012-491b4de52d69/bin-2019/utaipan/data/eb16fdd0b/b089cc4bf58f4df298f19012f422aca6/FLAG832a6d770 [2018-11-18 13:50:06,901 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1ce0802c-ce45-4a81-9012-491b4de52d69/bin-2019/utaipan/data/eb16fdd0b/b089cc4bf58f4df298f19012f422aca6 [2018-11-18 13:50:06,904 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 13:50:06,905 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 13:50:06,905 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 13:50:06,905 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 13:50:06,908 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 13:50:06,908 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:50:06" (1/1) ... [2018-11-18 13:50:06,910 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28a0deda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:50:06, skipping insertion in model container [2018-11-18 13:50:06,910 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:50:06" (1/1) ... [2018-11-18 13:50:06,917 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 13:50:06,949 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 13:50:07,157 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:50:07,166 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 13:50:07,270 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:50:07,287 INFO L195 MainTranslator]: Completed translation [2018-11-18 13:50:07,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:50:07 WrapperNode [2018-11-18 13:50:07,288 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 13:50:07,289 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 13:50:07,289 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 13:50:07,289 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 13:50:07,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:50:07" (1/1) ... [2018-11-18 13:50:07,308 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:50:07" (1/1) ... [2018-11-18 13:50:07,316 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 13:50:07,316 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 13:50:07,316 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 13:50:07,316 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 13:50:07,323 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:50:07" (1/1) ... [2018-11-18 13:50:07,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:50:07" (1/1) ... [2018-11-18 13:50:07,326 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:50:07" (1/1) ... [2018-11-18 13:50:07,326 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:50:07" (1/1) ... [2018-11-18 13:50:07,335 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:50:07" (1/1) ... [2018-11-18 13:50:07,340 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:50:07" (1/1) ... [2018-11-18 13:50:07,343 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:50:07" (1/1) ... [2018-11-18 13:50:07,346 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 13:50:07,346 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 13:50:07,346 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 13:50:07,346 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 13:50:07,347 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:50:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1ce0802c-ce45-4a81-9012-491b4de52d69/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 13:50:07,397 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-11-18 13:50:07,397 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-11-18 13:50:07,397 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2018-11-18 13:50:07,398 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2018-11-18 13:50:07,398 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 13:50:07,398 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 13:50:07,398 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-11-18 13:50:07,398 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-11-18 13:50:07,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 13:50:07,398 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-11-18 13:50:07,398 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-11-18 13:50:07,398 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-11-18 13:50:07,399 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-11-18 13:50:07,399 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-11-18 13:50:07,399 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-11-18 13:50:07,399 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-11-18 13:50:07,399 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-11-18 13:50:07,399 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-11-18 13:50:07,399 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-11-18 13:50:07,399 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-11-18 13:50:07,399 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-11-18 13:50:07,400 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-11-18 13:50:07,400 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-11-18 13:50:07,400 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-11-18 13:50:07,400 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-11-18 13:50:07,400 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-11-18 13:50:07,400 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-11-18 13:50:07,400 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-11-18 13:50:07,400 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-11-18 13:50:07,401 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-11-18 13:50:07,401 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-11-18 13:50:07,401 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-11-18 13:50:07,401 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-11-18 13:50:07,401 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-11-18 13:50:07,401 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-11-18 13:50:07,401 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-11-18 13:50:07,401 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-11-18 13:50:07,402 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-11-18 13:50:07,402 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-11-18 13:50:07,402 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-11-18 13:50:07,402 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-11-18 13:50:07,402 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2018-11-18 13:50:07,402 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2018-11-18 13:50:07,402 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-11-18 13:50:07,402 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-11-18 13:50:07,402 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-11-18 13:50:07,403 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-11-18 13:50:07,403 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-11-18 13:50:07,403 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-11-18 13:50:07,403 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-11-18 13:50:07,403 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-11-18 13:50:07,403 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-11-18 13:50:07,403 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-11-18 13:50:07,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 13:50:07,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 13:50:07,404 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-11-18 13:50:07,404 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-11-18 13:50:07,404 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-11-18 13:50:07,404 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-11-18 13:50:07,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 13:50:07,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 13:50:07,932 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 13:50:07,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:50:07 BoogieIcfgContainer [2018-11-18 13:50:07,933 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 13:50:07,933 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 13:50:07,934 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 13:50:07,936 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 13:50:07,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 01:50:06" (1/3) ... [2018-11-18 13:50:07,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8f84a3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:50:07, skipping insertion in model container [2018-11-18 13:50:07,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:50:07" (2/3) ... [2018-11-18 13:50:07,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8f84a3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:50:07, skipping insertion in model container [2018-11-18 13:50:07,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:50:07" (3/3) ... [2018-11-18 13:50:07,940 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product53_true-unreach-call_false-termination.cil.c [2018-11-18 13:50:07,949 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 13:50:07,956 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 13:50:07,971 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 13:50:08,000 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 13:50:08,000 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 13:50:08,000 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 13:50:08,000 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 13:50:08,000 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 13:50:08,000 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 13:50:08,000 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 13:50:08,000 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 13:50:08,019 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states. [2018-11-18 13:50:08,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-18 13:50:08,027 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:50:08,028 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 13:50:08,030 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:50:08,035 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:50:08,036 INFO L82 PathProgramCache]: Analyzing trace with hash -108085927, now seen corresponding path program 1 times [2018-11-18 13:50:08,038 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:50:08,075 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:50:08,075 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:50:08,075 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:50:08,075 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:50:08,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:50:08,258 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 13:50:08,259 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:50:08,260 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 13:50:08,260 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:50:08,264 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 13:50:08,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 13:50:08,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 13:50:08,279 INFO L87 Difference]: Start difference. First operand 161 states. Second operand 2 states. [2018-11-18 13:50:08,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:50:08,311 INFO L93 Difference]: Finished difference Result 296 states and 365 transitions. [2018-11-18 13:50:08,311 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 13:50:08,313 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-11-18 13:50:08,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:50:08,325 INFO L225 Difference]: With dead ends: 296 [2018-11-18 13:50:08,325 INFO L226 Difference]: Without dead ends: 148 [2018-11-18 13:50:08,328 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 13:50:08,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-11-18 13:50:08,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2018-11-18 13:50:08,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2018-11-18 13:50:08,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 174 transitions. [2018-11-18 13:50:08,366 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 174 transitions. Word has length 46 [2018-11-18 13:50:08,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:50:08,366 INFO L480 AbstractCegarLoop]: Abstraction has 148 states and 174 transitions. [2018-11-18 13:50:08,366 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 13:50:08,366 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 174 transitions. [2018-11-18 13:50:08,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-18 13:50:08,368 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:50:08,368 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 13:50:08,368 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:50:08,369 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:50:08,369 INFO L82 PathProgramCache]: Analyzing trace with hash -1557523809, now seen corresponding path program 1 times [2018-11-18 13:50:08,369 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:50:08,369 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:50:08,370 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:50:08,370 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:50:08,370 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:50:08,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:50:08,458 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 13:50:08,459 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:50:08,459 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 13:50:08,459 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:50:08,460 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 13:50:08,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 13:50:08,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 13:50:08,461 INFO L87 Difference]: Start difference. First operand 148 states and 174 transitions. Second operand 3 states. [2018-11-18 13:50:08,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:50:08,488 INFO L93 Difference]: Finished difference Result 243 states and 285 transitions. [2018-11-18 13:50:08,489 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 13:50:08,489 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2018-11-18 13:50:08,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:50:08,491 INFO L225 Difference]: With dead ends: 243 [2018-11-18 13:50:08,491 INFO L226 Difference]: Without dead ends: 138 [2018-11-18 13:50:08,492 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 13:50:08,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2018-11-18 13:50:08,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2018-11-18 13:50:08,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2018-11-18 13:50:08,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 161 transitions. [2018-11-18 13:50:08,505 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 161 transitions. Word has length 48 [2018-11-18 13:50:08,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:50:08,506 INFO L480 AbstractCegarLoop]: Abstraction has 138 states and 161 transitions. [2018-11-18 13:50:08,506 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 13:50:08,506 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 161 transitions. [2018-11-18 13:50:08,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-11-18 13:50:08,507 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:50:08,508 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 13:50:08,508 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:50:08,508 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:50:08,508 INFO L82 PathProgramCache]: Analyzing trace with hash 1272643042, now seen corresponding path program 1 times [2018-11-18 13:50:08,508 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:50:08,509 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:50:08,509 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:50:08,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:50:08,510 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:50:08,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:50:08,628 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 13:50:08,628 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:50:08,628 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 13:50:08,628 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:50:08,629 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 13:50:08,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 13:50:08,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-18 13:50:08,629 INFO L87 Difference]: Start difference. First operand 138 states and 161 transitions. Second operand 7 states. [2018-11-18 13:50:08,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:50:08,940 INFO L93 Difference]: Finished difference Result 252 states and 299 transitions. [2018-11-18 13:50:08,941 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 13:50:08,941 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2018-11-18 13:50:08,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:50:08,943 INFO L225 Difference]: With dead ends: 252 [2018-11-18 13:50:08,943 INFO L226 Difference]: Without dead ends: 138 [2018-11-18 13:50:08,944 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 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 13:50:08,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2018-11-18 13:50:08,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2018-11-18 13:50:08,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2018-11-18 13:50:08,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 160 transitions. [2018-11-18 13:50:08,958 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 160 transitions. Word has length 52 [2018-11-18 13:50:08,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:50:08,959 INFO L480 AbstractCegarLoop]: Abstraction has 138 states and 160 transitions. [2018-11-18 13:50:08,959 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 13:50:08,959 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 160 transitions. [2018-11-18 13:50:08,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-11-18 13:50:08,961 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:50:08,961 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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:50:08,962 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:50:08,963 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:50:08,963 INFO L82 PathProgramCache]: Analyzing trace with hash -1673099374, now seen corresponding path program 1 times [2018-11-18 13:50:08,963 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:50:08,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:50:08,964 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:50:08,965 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:50:08,965 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:50:08,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:50:09,065 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 13:50:09,065 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:50:09,065 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 13:50:09,066 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:50:09,066 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 13:50:09,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 13:50:09,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 13:50:09,067 INFO L87 Difference]: Start difference. First operand 138 states and 160 transitions. Second operand 5 states. [2018-11-18 13:50:09,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:50:09,488 INFO L93 Difference]: Finished difference Result 356 states and 429 transitions. [2018-11-18 13:50:09,488 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 13:50:09,489 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 70 [2018-11-18 13:50:09,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:50:09,491 INFO L225 Difference]: With dead ends: 356 [2018-11-18 13:50:09,491 INFO L226 Difference]: Without dead ends: 242 [2018-11-18 13:50:09,492 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-18 13:50:09,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2018-11-18 13:50:09,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 223. [2018-11-18 13:50:09,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2018-11-18 13:50:09,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 252 transitions. [2018-11-18 13:50:09,516 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 252 transitions. Word has length 70 [2018-11-18 13:50:09,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:50:09,517 INFO L480 AbstractCegarLoop]: Abstraction has 223 states and 252 transitions. [2018-11-18 13:50:09,517 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 13:50:09,517 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 252 transitions. [2018-11-18 13:50:09,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-11-18 13:50:09,518 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:50:09,518 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, 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 13:50:09,518 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:50:09,518 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:50:09,519 INFO L82 PathProgramCache]: Analyzing trace with hash -148973748, now seen corresponding path program 1 times [2018-11-18 13:50:09,519 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:50:09,519 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:50:09,519 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:50:09,520 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:50:09,520 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:50:09,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:50:09,637 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 13:50:09,638 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:50:09,638 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-18 13:50:09,638 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:50:09,639 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 13:50:09,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 13:50:09,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-11-18 13:50:09,640 INFO L87 Difference]: Start difference. First operand 223 states and 252 transitions. Second operand 10 states. [2018-11-18 13:50:10,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:50:10,066 INFO L93 Difference]: Finished difference Result 711 states and 875 transitions. [2018-11-18 13:50:10,067 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-18 13:50:10,067 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 84 [2018-11-18 13:50:10,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:50:10,071 INFO L225 Difference]: With dead ends: 711 [2018-11-18 13:50:10,071 INFO L226 Difference]: Without dead ends: 512 [2018-11-18 13:50:10,073 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2018-11-18 13:50:10,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2018-11-18 13:50:10,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 502. [2018-11-18 13:50:10,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 502 states. [2018-11-18 13:50:10,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 588 transitions. [2018-11-18 13:50:10,112 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 588 transitions. Word has length 84 [2018-11-18 13:50:10,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:50:10,112 INFO L480 AbstractCegarLoop]: Abstraction has 502 states and 588 transitions. [2018-11-18 13:50:10,112 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 13:50:10,112 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 588 transitions. [2018-11-18 13:50:10,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-11-18 13:50:10,115 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:50:10,115 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:50:10,115 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:50:10,116 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:50:10,116 INFO L82 PathProgramCache]: Analyzing trace with hash 155637058, now seen corresponding path program 1 times [2018-11-18 13:50:10,116 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:50:10,116 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:50:10,117 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:50:10,117 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:50:10,117 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:50:10,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:50:10,191 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-18 13:50:10,191 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:50:10,191 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 13:50:10,192 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 142 with the following transitions: [2018-11-18 13:50:10,193 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [50], [53], [55], [56], [57], [58], [59], [62], [64], [65], [68], [70], [73], [80], [83], [85], [89], [95], [99], [103], [106], [111], [117], [119], [122], [139], [140], [141], [142], [143], [144], [145], [147], [150], [154], [155], [163], [164], [194], [197], [201], [207], [210], [214], [215], [219], [222], [224], [227], [237], [240], [244], [245], [248], [263], [266], [267], [268], [269], [270], [271], [273], [274], [275], [276], [277], [278], [279], [280], [281], [285], [287], [288], [289], [290], [291], [292], [295], [296], [297], [298], [301], [302], [305], [306], [311], [312], [313], [314], [315], [316], [317], [318], [319], [321], [322], [323], [324], [335], [336] [2018-11-18 13:50:10,220 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 13:50:10,220 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 13:50:10,532 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 13:50:10,533 INFO L272 AbstractInterpreter]: Visited 56 different actions 56 times. Never merged. Never widened. Performed 2091 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2091 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-11-18 13:50:10,550 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:50:10,550 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 13:50:10,773 INFO L227 lantSequenceWeakener]: Weakened 71 states. On average, predicates are now at 96.42% of their original sizes. [2018-11-18 13:50:10,773 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 13:50:10,813 INFO L415 sIntCurrentIteration]: We unified 140 AI predicates to 140 [2018-11-18 13:50:10,813 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 13:50:10,814 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 13:50:10,814 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [6] total 12 [2018-11-18 13:50:10,814 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:50:10,815 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 13:50:10,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 13:50:10,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-18 13:50:10,815 INFO L87 Difference]: Start difference. First operand 502 states and 588 transitions. Second operand 8 states. [2018-11-18 13:50:11,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:50:11,926 INFO L93 Difference]: Finished difference Result 1161 states and 1403 transitions. [2018-11-18 13:50:11,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 13:50:11,926 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 141 [2018-11-18 13:50:11,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:50:11,929 INFO L225 Difference]: With dead ends: 1161 [2018-11-18 13:50:11,929 INFO L226 Difference]: Without dead ends: 683 [2018-11-18 13:50:11,931 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 140 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-18 13:50:11,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2018-11-18 13:50:11,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 666. [2018-11-18 13:50:11,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 666 states. [2018-11-18 13:50:11,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 666 states and 781 transitions. [2018-11-18 13:50:11,971 INFO L78 Accepts]: Start accepts. Automaton has 666 states and 781 transitions. Word has length 141 [2018-11-18 13:50:11,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:50:11,971 INFO L480 AbstractCegarLoop]: Abstraction has 666 states and 781 transitions. [2018-11-18 13:50:11,971 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 13:50:11,971 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states and 781 transitions. [2018-11-18 13:50:11,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-11-18 13:50:11,975 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:50:11,976 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:50:11,976 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:50:11,976 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:50:11,976 INFO L82 PathProgramCache]: Analyzing trace with hash -2121805858, now seen corresponding path program 1 times [2018-11-18 13:50:11,976 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:50:11,977 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:50:11,977 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:50:11,977 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:50:11,977 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:50:11,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:50:12,060 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-18 13:50:12,060 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:50:12,060 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 13:50:12,060 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 138 with the following transitions: [2018-11-18 13:50:12,061 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [50], [53], [55], [56], [57], [58], [59], [62], [64], [65], [68], [70], [73], [80], [83], [85], [89], [95], [99], [103], [109], [111], [114], [117], [119], [122], [139], [140], [141], [142], [143], [144], [145], [147], [150], [154], [155], [160], [162], [163], [164], [194], [197], [201], [207], [210], [214], [215], [219], [222], [224], [227], [237], [245], [248], [263], [266], [267], [268], [269], [270], [271], [273], [274], [275], [276], [277], [278], [279], [280], [281], [285], [287], [288], [289], [290], [291], [292], [295], [296], [299], [300], [301], [302], [305], [306], [311], [312], [313], [314], [315], [316], [317], [318], [319], [321], [322], [323], [324], [335], [336] [2018-11-18 13:50:12,064 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 13:50:12,064 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 13:50:12,481 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 13:50:12,481 INFO L272 AbstractInterpreter]: Visited 66 different actions 96 times. Merged at 3 different actions 3 times. Never widened. Performed 5189 root evaluator evaluations with a maximum evaluation depth of 3. Performed 5189 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-11-18 13:50:12,498 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:50:12,498 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 13:50:12,827 INFO L227 lantSequenceWeakener]: Weakened 76 states. On average, predicates are now at 96.43% of their original sizes. [2018-11-18 13:50:12,827 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 13:50:12,954 INFO L415 sIntCurrentIteration]: We unified 136 AI predicates to 136 [2018-11-18 13:50:12,955 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 13:50:12,955 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 13:50:12,956 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2018-11-18 13:50:12,956 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:50:12,956 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-18 13:50:12,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-18 13:50:12,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2018-11-18 13:50:12,957 INFO L87 Difference]: Start difference. First operand 666 states and 781 transitions. Second operand 16 states. [2018-11-18 13:50:15,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:50:15,814 INFO L93 Difference]: Finished difference Result 1331 states and 1583 transitions. [2018-11-18 13:50:15,814 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-18 13:50:15,814 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 137 [2018-11-18 13:50:15,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:50:15,817 INFO L225 Difference]: With dead ends: 1331 [2018-11-18 13:50:15,818 INFO L226 Difference]: Without dead ends: 689 [2018-11-18 13:50:15,819 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 151 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=169, Invalid=761, Unknown=0, NotChecked=0, Total=930 [2018-11-18 13:50:15,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2018-11-18 13:50:15,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 685. [2018-11-18 13:50:15,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 685 states. [2018-11-18 13:50:15,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 783 transitions. [2018-11-18 13:50:15,848 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 783 transitions. Word has length 137 [2018-11-18 13:50:15,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:50:15,848 INFO L480 AbstractCegarLoop]: Abstraction has 685 states and 783 transitions. [2018-11-18 13:50:15,848 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-18 13:50:15,848 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 783 transitions. [2018-11-18 13:50:15,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-11-18 13:50:15,851 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:50:15,851 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:50:15,851 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:50:15,851 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:50:15,851 INFO L82 PathProgramCache]: Analyzing trace with hash -122416709, now seen corresponding path program 1 times [2018-11-18 13:50:15,852 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:50:15,852 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:50:15,852 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:50:15,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:50:15,853 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:50:15,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:50:15,934 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-18 13:50:15,934 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:50:15,934 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 13:50:15,935 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 138 with the following transitions: [2018-11-18 13:50:15,935 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [50], [53], [55], [56], [57], [58], [59], [63], [64], [65], [68], [70], [73], [80], [83], [85], [89], [95], [99], [103], [106], [109], [111], [117], [119], [122], [139], [140], [141], [142], [143], [144], [145], [147], [150], [154], [155], [163], [164], [194], [197], [201], [207], [210], [214], [215], [219], [222], [224], [227], [237], [240], [244], [245], [248], [263], [266], [267], [268], [269], [270], [271], [273], [274], [275], [276], [277], [278], [279], [280], [281], [285], [287], [288], [289], [290], [291], [292], [295], [296], [297], [298], [301], [302], [305], [306], [311], [312], [313], [314], [315], [316], [317], [318], [319], [321], [322], [323], [324], [335], [336] [2018-11-18 13:50:15,937 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 13:50:15,938 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 13:50:16,131 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 13:50:16,131 INFO L272 AbstractInterpreter]: Visited 61 different actions 84 times. Merged at 5 different actions 5 times. Never widened. Performed 5158 root evaluator evaluations with a maximum evaluation depth of 3. Performed 5158 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-11-18 13:50:16,142 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:50:16,142 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 13:50:16,396 INFO L227 lantSequenceWeakener]: Weakened 71 states. On average, predicates are now at 96.42% of their original sizes. [2018-11-18 13:50:16,396 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 13:50:16,442 INFO L415 sIntCurrentIteration]: We unified 136 AI predicates to 136 [2018-11-18 13:50:16,442 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 13:50:16,442 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 13:50:16,442 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [5] total 15 [2018-11-18 13:50:16,442 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:50:16,443 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-18 13:50:16,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-18 13:50:16,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2018-11-18 13:50:16,443 INFO L87 Difference]: Start difference. First operand 685 states and 783 transitions. Second operand 12 states. [2018-11-18 13:50:17,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:50:17,998 INFO L93 Difference]: Finished difference Result 1193 states and 1412 transitions. [2018-11-18 13:50:17,998 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 13:50:17,998 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 137 [2018-11-18 13:50:17,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:50:18,000 INFO L225 Difference]: With dead ends: 1193 [2018-11-18 13:50:18,001 INFO L226 Difference]: Without dead ends: 715 [2018-11-18 13:50:18,002 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 140 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2018-11-18 13:50:18,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2018-11-18 13:50:18,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 685. [2018-11-18 13:50:18,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 685 states. [2018-11-18 13:50:18,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 782 transitions. [2018-11-18 13:50:18,023 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 782 transitions. Word has length 137 [2018-11-18 13:50:18,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:50:18,023 INFO L480 AbstractCegarLoop]: Abstraction has 685 states and 782 transitions. [2018-11-18 13:50:18,024 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-18 13:50:18,024 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 782 transitions. [2018-11-18 13:50:18,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-11-18 13:50:18,025 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:50:18,025 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:50:18,026 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:50:18,026 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:50:18,026 INFO L82 PathProgramCache]: Analyzing trace with hash 503106974, now seen corresponding path program 1 times [2018-11-18 13:50:18,026 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:50:18,026 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:50:18,027 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:50:18,027 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:50:18,027 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:50:18,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:50:18,080 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-18 13:50:18,081 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:50:18,081 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 13:50:18,081 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 146 with the following transitions: [2018-11-18 13:50:18,081 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [50], [53], [55], [56], [57], [58], [59], [62], [64], [65], [68], [70], [73], [80], [83], [85], [89], [95], [99], [103], [106], [111], [114], [117], [119], [122], [139], [140], [141], [142], [143], [144], [145], [147], [150], [154], [155], [160], [162], [163], [164], [194], [197], [201], [207], [210], [214], [215], [219], [222], [224], [227], [237], [240], [244], [245], [248], [263], [266], [267], [268], [269], [270], [271], [273], [274], [275], [276], [277], [278], [279], [280], [281], [285], [287], [288], [289], [290], [291], [292], [295], [296], [297], [298], [299], [300], [301], [302], [305], [306], [311], [312], [313], [314], [315], [316], [317], [318], [319], [321], [322], [323], [324], [335], [336] [2018-11-18 13:50:18,083 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 13:50:18,084 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 13:50:18,246 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 13:50:18,247 INFO L272 AbstractInterpreter]: Visited 61 different actions 82 times. Merged at 3 different actions 3 times. Never widened. Performed 5239 root evaluator evaluations with a maximum evaluation depth of 3. Performed 5239 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-11-18 13:50:18,258 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:50:18,258 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 13:50:18,376 INFO L227 lantSequenceWeakener]: Weakened 75 states. On average, predicates are now at 96.42% of their original sizes. [2018-11-18 13:50:18,376 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 13:50:18,425 INFO L415 sIntCurrentIteration]: We unified 144 AI predicates to 144 [2018-11-18 13:50:18,425 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 13:50:18,425 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 13:50:18,425 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [6] total 15 [2018-11-18 13:50:18,425 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:50:18,426 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-18 13:50:18,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-18 13:50:18,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-11-18 13:50:18,426 INFO L87 Difference]: Start difference. First operand 685 states and 782 transitions. Second operand 11 states. [2018-11-18 13:50:20,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:50:20,132 INFO L93 Difference]: Finished difference Result 1392 states and 1684 transitions. [2018-11-18 13:50:20,132 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 13:50:20,132 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 145 [2018-11-18 13:50:20,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:50:20,135 INFO L225 Difference]: With dead ends: 1392 [2018-11-18 13:50:20,135 INFO L226 Difference]: Without dead ends: 1019 [2018-11-18 13:50:20,136 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 145 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2018-11-18 13:50:20,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1019 states. [2018-11-18 13:50:20,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1019 to 979. [2018-11-18 13:50:20,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 979 states. [2018-11-18 13:50:20,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 979 states to 979 states and 1123 transitions. [2018-11-18 13:50:20,166 INFO L78 Accepts]: Start accepts. Automaton has 979 states and 1123 transitions. Word has length 145 [2018-11-18 13:50:20,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:50:20,167 INFO L480 AbstractCegarLoop]: Abstraction has 979 states and 1123 transitions. [2018-11-18 13:50:20,167 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-18 13:50:20,167 INFO L276 IsEmpty]: Start isEmpty. Operand 979 states and 1123 transitions. [2018-11-18 13:50:20,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-11-18 13:50:20,169 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:50:20,169 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:50:20,169 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:50:20,169 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:50:20,169 INFO L82 PathProgramCache]: Analyzing trace with hash -1264919175, now seen corresponding path program 1 times [2018-11-18 13:50:20,170 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:50:20,170 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:50:20,170 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:50:20,170 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:50:20,170 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:50:20,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:50:20,245 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-11-18 13:50:20,245 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:50:20,245 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-18 13:50:20,246 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:50:20,246 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 13:50:20,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 13:50:20,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-18 13:50:20,246 INFO L87 Difference]: Start difference. First operand 979 states and 1123 transitions. Second operand 9 states. [2018-11-18 13:50:20,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:50:20,739 INFO L93 Difference]: Finished difference Result 1977 states and 2331 transitions. [2018-11-18 13:50:20,740 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-18 13:50:20,740 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 137 [2018-11-18 13:50:20,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:50:20,745 INFO L225 Difference]: With dead ends: 1977 [2018-11-18 13:50:20,746 INFO L226 Difference]: Without dead ends: 1367 [2018-11-18 13:50:20,748 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2018-11-18 13:50:20,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1367 states. [2018-11-18 13:50:20,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1367 to 1358. [2018-11-18 13:50:20,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1358 states. [2018-11-18 13:50:20,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1358 states to 1358 states and 1557 transitions. [2018-11-18 13:50:20,813 INFO L78 Accepts]: Start accepts. Automaton has 1358 states and 1557 transitions. Word has length 137 [2018-11-18 13:50:20,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:50:20,813 INFO L480 AbstractCegarLoop]: Abstraction has 1358 states and 1557 transitions. [2018-11-18 13:50:20,813 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 13:50:20,813 INFO L276 IsEmpty]: Start isEmpty. Operand 1358 states and 1557 transitions. [2018-11-18 13:50:20,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-11-18 13:50:20,815 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:50:20,815 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:50:20,815 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:50:20,815 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:50:20,816 INFO L82 PathProgramCache]: Analyzing trace with hash 336369687, now seen corresponding path program 1 times [2018-11-18 13:50:20,816 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:50:20,816 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:50:20,817 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:50:20,817 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:50:20,817 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:50:20,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:50:20,911 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-18 13:50:20,911 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:50:20,911 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 13:50:20,912 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 142 with the following transitions: [2018-11-18 13:50:20,912 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [50], [53], [55], [56], [57], [58], [59], [63], [64], [65], [68], [70], [73], [80], [83], [85], [89], [95], [99], [103], [106], [109], [111], [114], [117], [119], [122], [139], [140], [141], [142], [143], [144], [145], [147], [150], [154], [155], [160], [162], [163], [164], [194], [197], [201], [207], [210], [214], [215], [219], [222], [224], [227], [237], [240], [244], [245], [248], [263], [266], [267], [268], [269], [270], [271], [273], [274], [275], [276], [277], [278], [279], [280], [281], [285], [287], [288], [289], [290], [291], [292], [295], [296], [297], [298], [299], [300], [301], [302], [305], [306], [311], [312], [313], [314], [315], [316], [317], [318], [319], [321], [322], [323], [324], [335], [336] [2018-11-18 13:50:20,914 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 13:50:20,914 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 13:50:21,350 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 13:50:21,350 INFO L272 AbstractInterpreter]: Visited 66 different actions 144 times. Merged at 7 different actions 12 times. Never widened. Performed 11887 root evaluator evaluations with a maximum evaluation depth of 3. Performed 11887 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-11-18 13:50:21,358 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:50:21,358 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 13:50:21,525 INFO L227 lantSequenceWeakener]: Weakened 75 states. On average, predicates are now at 96.41% of their original sizes. [2018-11-18 13:50:21,525 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 13:50:21,604 INFO L415 sIntCurrentIteration]: We unified 140 AI predicates to 140 [2018-11-18 13:50:21,604 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 13:50:21,604 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 13:50:21,604 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [5] total 18 [2018-11-18 13:50:21,604 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:50:21,605 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-18 13:50:21,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-18 13:50:21,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2018-11-18 13:50:21,605 INFO L87 Difference]: Start difference. First operand 1358 states and 1557 transitions. Second operand 15 states. [2018-11-18 13:50:25,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:50:25,554 INFO L93 Difference]: Finished difference Result 3612 states and 4469 transitions. [2018-11-18 13:50:25,554 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-11-18 13:50:25,554 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 141 [2018-11-18 13:50:25,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:50:25,561 INFO L225 Difference]: With dead ends: 3612 [2018-11-18 13:50:25,561 INFO L226 Difference]: Without dead ends: 2623 [2018-11-18 13:50:25,564 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 152 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2018-11-18 13:50:25,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2623 states. [2018-11-18 13:50:25,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2623 to 2386. [2018-11-18 13:50:25,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2386 states. [2018-11-18 13:50:25,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2386 states to 2386 states and 2810 transitions. [2018-11-18 13:50:25,642 INFO L78 Accepts]: Start accepts. Automaton has 2386 states and 2810 transitions. Word has length 141 [2018-11-18 13:50:25,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:50:25,643 INFO L480 AbstractCegarLoop]: Abstraction has 2386 states and 2810 transitions. [2018-11-18 13:50:25,643 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-18 13:50:25,643 INFO L276 IsEmpty]: Start isEmpty. Operand 2386 states and 2810 transitions. [2018-11-18 13:50:25,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-11-18 13:50:25,645 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:50:25,645 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:50:25,645 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:50:25,645 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:50:25,645 INFO L82 PathProgramCache]: Analyzing trace with hash -806132779, now seen corresponding path program 1 times [2018-11-18 13:50:25,645 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:50:25,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:50:25,646 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:50:25,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:50:25,646 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:50:25,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:50:25,714 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-18 13:50:25,714 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:50:25,714 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 13:50:25,715 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:50:25,715 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 13:50:25,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 13:50:25,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 13:50:25,715 INFO L87 Difference]: Start difference. First operand 2386 states and 2810 transitions. Second operand 6 states. [2018-11-18 13:50:25,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:50:25,867 INFO L93 Difference]: Finished difference Result 2413 states and 2840 transitions. [2018-11-18 13:50:25,867 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 13:50:25,867 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 141 [2018-11-18 13:50:25,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:50:25,873 INFO L225 Difference]: With dead ends: 2413 [2018-11-18 13:50:25,873 INFO L226 Difference]: Without dead ends: 2410 [2018-11-18 13:50:25,874 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-18 13:50:25,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2410 states. [2018-11-18 13:50:25,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2410 to 2386. [2018-11-18 13:50:25,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2386 states. [2018-11-18 13:50:25,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2386 states to 2386 states and 2804 transitions. [2018-11-18 13:50:25,951 INFO L78 Accepts]: Start accepts. Automaton has 2386 states and 2804 transitions. Word has length 141 [2018-11-18 13:50:25,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:50:25,952 INFO L480 AbstractCegarLoop]: Abstraction has 2386 states and 2804 transitions. [2018-11-18 13:50:25,952 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 13:50:25,952 INFO L276 IsEmpty]: Start isEmpty. Operand 2386 states and 2804 transitions. [2018-11-18 13:50:25,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2018-11-18 13:50:25,954 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:50:25,955 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:50:25,955 INFO L423 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:50:25,955 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:50:25,955 INFO L82 PathProgramCache]: Analyzing trace with hash 1434947456, now seen corresponding path program 1 times [2018-11-18 13:50:25,955 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:50:25,956 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:50:25,956 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:50:25,956 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:50:25,956 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:50:25,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:50:26,063 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 20 proven. 7 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-18 13:50:26,064 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:50:26,064 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 13:50:26,064 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 168 with the following transitions: [2018-11-18 13:50:26,064 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [41], [44], [48], [49], [50], [53], [55], [56], [59], [63], [64], [65], [68], [70], [76], [80], [83], [84], [85], [89], [95], [99], [103], [106], [109], [111], [114], [119], [122], [137], [138], [139], [140], [141], [142], [143], [144], [145], [147], [152], [154], [155], [158], [160], [162], [163], [164], [194], [197], [201], [207], [210], [214], [215], [219], [222], [224], [227], [234], [237], [240], [244], [245], [248], [251], [253], [259], [263], [266], [267], [268], [269], [270], [271], [273], [274], [275], [276], [277], [278], [279], [280], [281], [283], [284], [285], [287], [288], [289], [290], [293], [294], [295], [296], [297], [298], [299], [300], [301], [302], [305], [306], [311], [312], [313], [314], [315], [316], [317], [318], [319], [321], [322], [323], [324], [327], [328], [329], [330], [333], [334], [335], [336] [2018-11-18 13:50:26,066 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 13:50:26,066 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 13:50:27,053 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 13:50:27,053 INFO L272 AbstractInterpreter]: Visited 139 different actions 799 times. Merged at 22 different actions 85 times. Never widened. Performed 30051 root evaluator evaluations with a maximum evaluation depth of 5. Performed 30051 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 13:50:27,054 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:50:27,055 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 13:50:27,055 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:50:27,055 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1ce0802c-ce45-4a81-9012-491b4de52d69/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 13:50:27,062 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:50:27,062 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 13:50:27,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:50:27,147 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:50:27,244 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 23 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:50:27,244 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 13:50:27,472 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 20 proven. 7 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-18 13:50:27,489 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 13:50:27,489 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 17 [2018-11-18 13:50:27,490 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 13:50:27,490 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-18 13:50:27,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-18 13:50:27,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2018-11-18 13:50:27,491 INFO L87 Difference]: Start difference. First operand 2386 states and 2804 transitions. Second operand 14 states. [2018-11-18 13:50:28,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:50:28,644 INFO L93 Difference]: Finished difference Result 3872 states and 4897 transitions. [2018-11-18 13:50:28,645 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-18 13:50:28,645 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 167 [2018-11-18 13:50:28,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:50:28,651 INFO L225 Difference]: With dead ends: 3872 [2018-11-18 13:50:28,651 INFO L226 Difference]: Without dead ends: 2195 [2018-11-18 13:50:28,655 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 328 SyntacticMatches, 7 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=219, Invalid=651, Unknown=0, NotChecked=0, Total=870 [2018-11-18 13:50:28,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2195 states. [2018-11-18 13:50:28,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2195 to 1787. [2018-11-18 13:50:28,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1787 states. [2018-11-18 13:50:28,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1787 states to 1787 states and 2063 transitions. [2018-11-18 13:50:28,729 INFO L78 Accepts]: Start accepts. Automaton has 1787 states and 2063 transitions. Word has length 167 [2018-11-18 13:50:28,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:50:28,729 INFO L480 AbstractCegarLoop]: Abstraction has 1787 states and 2063 transitions. [2018-11-18 13:50:28,730 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-18 13:50:28,730 INFO L276 IsEmpty]: Start isEmpty. Operand 1787 states and 2063 transitions. [2018-11-18 13:50:28,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2018-11-18 13:50:28,733 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:50:28,734 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-18 13:50:28,734 INFO L423 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:50:28,734 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:50:28,734 INFO L82 PathProgramCache]: Analyzing trace with hash -792552219, now seen corresponding path program 1 times [2018-11-18 13:50:28,734 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:50:28,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:50:28,735 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:50:28,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:50:28,735 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:50:28,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:50:28,830 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 47 proven. 14 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2018-11-18 13:50:28,830 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:50:28,830 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 13:50:28,830 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 230 with the following transitions: [2018-11-18 13:50:28,831 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [41], [44], [48], [49], [50], [53], [55], [56], [59], [63], [64], [65], [68], [70], [76], [80], [83], [84], [85], [89], [95], [99], [103], [106], [109], [111], [117], [119], [122], [137], [138], [139], [140], [141], [142], [143], [144], [145], [147], [152], [154], [155], [163], [164], [194], [197], [201], [207], [210], [214], [215], [219], [222], [224], [227], [234], [237], [240], [244], [245], [248], [251], [253], [259], [263], [266], [267], [268], [269], [270], [271], [273], [274], [275], [276], [277], [278], [279], [280], [281], [283], [284], [285], [287], [288], [289], [290], [293], [294], [295], [296], [297], [298], [301], [302], [305], [306], [311], [312], [313], [314], [315], [316], [317], [318], [319], [321], [322], [323], [324], [327], [328], [329], [330], [333], [334], [335], [336] [2018-11-18 13:50:28,832 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 13:50:28,832 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 13:50:29,546 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 13:50:29,547 INFO L272 AbstractInterpreter]: Visited 134 different actions 616 times. Merged at 19 different actions 53 times. Never widened. Performed 19295 root evaluator evaluations with a maximum evaluation depth of 5. Performed 19295 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 9 fixpoints after 3 different actions. Largest state had 132 variables. [2018-11-18 13:50:29,550 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:50:29,550 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 13:50:29,551 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:50:29,551 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1ce0802c-ce45-4a81-9012-491b4de52d69/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 13:50:29,560 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:50:29,561 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 13:50:29,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:50:29,648 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:50:29,760 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 114 proven. 18 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-18 13:50:29,760 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 13:50:30,156 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 50 proven. 32 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2018-11-18 13:50:30,173 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 13:50:30,173 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 10] total 22 [2018-11-18 13:50:30,173 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 13:50:30,174 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-18 13:50:30,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-18 13:50:30,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=377, Unknown=0, NotChecked=0, Total=462 [2018-11-18 13:50:30,174 INFO L87 Difference]: Start difference. First operand 1787 states and 2063 transitions. Second operand 16 states. [2018-11-18 13:50:32,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:50:32,048 INFO L93 Difference]: Finished difference Result 3900 states and 4824 transitions. [2018-11-18 13:50:32,049 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-11-18 13:50:32,049 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 229 [2018-11-18 13:50:32,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:50:32,061 INFO L225 Difference]: With dead ends: 3900 [2018-11-18 13:50:32,061 INFO L226 Difference]: Without dead ends: 3004 [2018-11-18 13:50:32,066 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 452 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=307, Invalid=1099, Unknown=0, NotChecked=0, Total=1406 [2018-11-18 13:50:32,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3004 states. [2018-11-18 13:50:32,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3004 to 2672. [2018-11-18 13:50:32,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2672 states. [2018-11-18 13:50:32,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2672 states to 2672 states and 3072 transitions. [2018-11-18 13:50:32,216 INFO L78 Accepts]: Start accepts. Automaton has 2672 states and 3072 transitions. Word has length 229 [2018-11-18 13:50:32,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:50:32,216 INFO L480 AbstractCegarLoop]: Abstraction has 2672 states and 3072 transitions. [2018-11-18 13:50:32,217 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-18 13:50:32,217 INFO L276 IsEmpty]: Start isEmpty. Operand 2672 states and 3072 transitions. [2018-11-18 13:50:32,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2018-11-18 13:50:32,223 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:50:32,223 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:50:32,223 INFO L423 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:50:32,223 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:50:32,223 INFO L82 PathProgramCache]: Analyzing trace with hash 596741795, now seen corresponding path program 1 times [2018-11-18 13:50:32,223 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:50:32,224 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:50:32,224 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:50:32,224 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:50:32,224 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:50:32,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:50:32,318 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 43 proven. 10 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2018-11-18 13:50:32,318 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:50:32,318 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 13:50:32,318 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 230 with the following transitions: [2018-11-18 13:50:32,318 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [41], [44], [46], [48], [49], [50], [53], [55], [56], [59], [63], [64], [65], [68], [70], [76], [80], [83], [84], [85], [89], [95], [99], [103], [106], [109], [111], [117], [119], [122], [137], [138], [139], [140], [141], [142], [143], [144], [145], [147], [152], [154], [155], [163], [164], [194], [197], [201], [207], [210], [214], [215], [219], [222], [224], [227], [234], [237], [240], [244], [245], [248], [251], [253], [259], [263], [266], [267], [268], [269], [270], [271], [273], [274], [275], [276], [277], [278], [279], [280], [281], [283], [284], [285], [287], [288], [289], [290], [293], [294], [295], [296], [297], [298], [301], [302], [305], [306], [311], [312], [313], [314], [315], [316], [317], [318], [319], [321], [322], [323], [324], [327], [328], [329], [330], [333], [334], [335], [336] [2018-11-18 13:50:32,320 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 13:50:32,320 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 13:50:33,020 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 13:50:33,021 INFO L272 AbstractInterpreter]: Visited 135 different actions 644 times. Merged at 24 different actions 74 times. Never widened. Performed 20021 root evaluator evaluations with a maximum evaluation depth of 5. Performed 20021 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 13 fixpoints after 5 different actions. Largest state had 132 variables. [2018-11-18 13:50:33,030 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:50:33,030 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 13:50:33,030 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:50:33,030 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1ce0802c-ce45-4a81-9012-491b4de52d69/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 13:50:33,037 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:50:33,037 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 13:50:33,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:50:33,112 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:50:33,163 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2018-11-18 13:50:33,164 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 13:50:33,388 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 43 proven. 10 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2018-11-18 13:50:33,405 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 13:50:33,405 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [9, 6] total 13 [2018-11-18 13:50:33,405 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:50:33,406 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 13:50:33,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 13:50:33,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-11-18 13:50:33,406 INFO L87 Difference]: Start difference. First operand 2672 states and 3072 transitions. Second operand 6 states. [2018-11-18 13:50:33,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:50:33,492 INFO L93 Difference]: Finished difference Result 4365 states and 5068 transitions. [2018-11-18 13:50:33,493 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 13:50:33,493 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 229 [2018-11-18 13:50:33,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:50:33,499 INFO L225 Difference]: With dead ends: 4365 [2018-11-18 13:50:33,499 INFO L226 Difference]: Without dead ends: 2588 [2018-11-18 13:50:33,502 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 469 GetRequests, 453 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2018-11-18 13:50:33,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2588 states. [2018-11-18 13:50:33,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2588 to 2588. [2018-11-18 13:50:33,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2588 states. [2018-11-18 13:50:33,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2588 states to 2588 states and 2976 transitions. [2018-11-18 13:50:33,586 INFO L78 Accepts]: Start accepts. Automaton has 2588 states and 2976 transitions. Word has length 229 [2018-11-18 13:50:33,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:50:33,586 INFO L480 AbstractCegarLoop]: Abstraction has 2588 states and 2976 transitions. [2018-11-18 13:50:33,586 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 13:50:33,586 INFO L276 IsEmpty]: Start isEmpty. Operand 2588 states and 2976 transitions. [2018-11-18 13:50:33,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2018-11-18 13:50:33,591 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:50:33,591 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:50:33,591 INFO L423 AbstractCegarLoop]: === Iteration 16 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:50:33,591 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:50:33,591 INFO L82 PathProgramCache]: Analyzing trace with hash 873879658, now seen corresponding path program 1 times [2018-11-18 13:50:33,592 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:50:33,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:50:33,592 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:50:33,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:50:33,592 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:50:33,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:50:33,661 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 74 proven. 6 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2018-11-18 13:50:33,662 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:50:33,662 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 13:50:33,662 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 273 with the following transitions: [2018-11-18 13:50:33,662 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [41], [44], [48], [49], [50], [53], [55], [56], [57], [58], [59], [62], [63], [64], [65], [68], [70], [73], [76], [80], [83], [84], [85], [89], [95], [99], [103], [106], [109], [111], [114], [117], [119], [122], [137], [138], [139], [140], [141], [142], [143], [144], [145], [147], [150], [152], [154], [155], [158], [160], [162], [163], [164], [194], [197], [201], [207], [210], [214], [215], [219], [222], [224], [227], [234], [237], [240], [244], [245], [248], [251], [253], [259], [263], [266], [267], [268], [269], [270], [271], [273], [274], [275], [276], [277], [278], [279], [280], [281], [283], [284], [285], [287], [288], [289], [290], [291], [292], [293], [294], [295], [296], [297], [298], [299], [300], [301], [302], [305], [306], [311], [312], [313], [314], [315], [316], [317], [318], [319], [321], [322], [323], [324], [327], [328], [329], [330], [333], [334], [335], [336] [2018-11-18 13:50:33,663 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 13:50:33,664 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 13:50:35,343 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 13:50:35,343 INFO L272 AbstractInterpreter]: Visited 147 different actions 1253 times. Merged at 34 different actions 234 times. Never widened. Performed 47858 root evaluator evaluations with a maximum evaluation depth of 5. Performed 47858 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 37 fixpoints after 8 different actions. Largest state had 132 variables. [2018-11-18 13:50:35,344 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:50:35,344 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 13:50:35,345 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:50:35,345 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1ce0802c-ce45-4a81-9012-491b4de52d69/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 13:50:35,351 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:50:35,351 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 13:50:35,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:50:35,434 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:50:35,498 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 133 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-11-18 13:50:35,498 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 13:50:35,740 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 74 proven. 6 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2018-11-18 13:50:35,757 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 13:50:35,757 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 6 [2018-11-18 13:50:35,757 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:50:35,757 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 13:50:35,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 13:50:35,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 13:50:35,758 INFO L87 Difference]: Start difference. First operand 2588 states and 2976 transitions. Second operand 6 states. [2018-11-18 13:50:35,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:50:35,836 INFO L93 Difference]: Finished difference Result 4341 states and 5112 transitions. [2018-11-18 13:50:35,837 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 13:50:35,837 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 272 [2018-11-18 13:50:35,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:50:35,843 INFO L225 Difference]: With dead ends: 4341 [2018-11-18 13:50:35,844 INFO L226 Difference]: Without dead ends: 2648 [2018-11-18 13:50:35,847 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 550 GetRequests, 539 SyntacticMatches, 6 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-18 13:50:35,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2648 states. [2018-11-18 13:50:35,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2648 to 2648. [2018-11-18 13:50:35,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2648 states. [2018-11-18 13:50:35,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2648 states to 2648 states and 3040 transitions. [2018-11-18 13:50:35,943 INFO L78 Accepts]: Start accepts. Automaton has 2648 states and 3040 transitions. Word has length 272 [2018-11-18 13:50:35,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:50:35,944 INFO L480 AbstractCegarLoop]: Abstraction has 2648 states and 3040 transitions. [2018-11-18 13:50:35,944 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 13:50:35,944 INFO L276 IsEmpty]: Start isEmpty. Operand 2648 states and 3040 transitions. [2018-11-18 13:50:35,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2018-11-18 13:50:35,948 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:50:35,948 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:50:35,949 INFO L423 AbstractCegarLoop]: === Iteration 17 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:50:35,949 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:50:35,949 INFO L82 PathProgramCache]: Analyzing trace with hash -992829016, now seen corresponding path program 1 times [2018-11-18 13:50:35,949 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:50:35,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:50:35,950 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:50:35,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:50:35,950 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:50:35,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:50:36,030 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 78 proven. 6 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2018-11-18 13:50:36,030 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:50:36,030 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 13:50:36,031 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 273 with the following transitions: [2018-11-18 13:50:36,031 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [41], [44], [48], [49], [50], [53], [55], [56], [57], [58], [59], [62], [63], [64], [65], [68], [70], [73], [76], [80], [83], [84], [85], [89], [95], [99], [103], [106], [109], [111], [114], [117], [119], [122], [137], [138], [139], [140], [141], [142], [143], [144], [145], [147], [152], [154], [155], [158], [160], [162], [163], [164], [194], [197], [201], [207], [210], [214], [215], [219], [222], [224], [227], [234], [237], [240], [244], [245], [248], [251], [253], [259], [263], [266], [267], [268], [269], [270], [271], [273], [274], [275], [276], [277], [278], [279], [280], [281], [283], [284], [285], [287], [288], [289], [290], [291], [292], [293], [294], [295], [296], [297], [298], [299], [300], [301], [302], [305], [306], [311], [312], [313], [314], [315], [316], [317], [318], [319], [321], [322], [323], [324], [327], [328], [329], [330], [333], [334], [335], [336] [2018-11-18 13:50:36,032 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 13:50:36,032 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 13:50:37,705 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 13:50:37,705 INFO L272 AbstractInterpreter]: Visited 146 different actions 1182 times. Merged at 28 different actions 159 times. Never widened. Performed 51969 root evaluator evaluations with a maximum evaluation depth of 5. Performed 51969 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 27 fixpoints after 6 different actions. Largest state had 132 variables. [2018-11-18 13:50:37,707 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:50:37,707 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 13:50:37,708 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:50:37,708 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1ce0802c-ce45-4a81-9012-491b4de52d69/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 13:50:37,715 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:50:37,715 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 13:50:37,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:50:37,789 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:50:37,835 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2018-11-18 13:50:37,836 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 13:50:38,061 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 78 proven. 6 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2018-11-18 13:50:38,087 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 13:50:38,087 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 5] total 11 [2018-11-18 13:50:38,087 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:50:38,087 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 13:50:38,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 13:50:38,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-11-18 13:50:38,088 INFO L87 Difference]: Start difference. First operand 2648 states and 3040 transitions. Second operand 5 states. [2018-11-18 13:50:38,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:50:38,177 INFO L93 Difference]: Finished difference Result 3125 states and 3601 transitions. [2018-11-18 13:50:38,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 13:50:38,178 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 272 [2018-11-18 13:50:38,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:50:38,179 INFO L225 Difference]: With dead ends: 3125 [2018-11-18 13:50:38,179 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 13:50:38,184 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 553 GetRequests, 541 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-11-18 13:50:38,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 13:50:38,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 13:50:38,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 13:50:38,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 13:50:38,185 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 272 [2018-11-18 13:50:38,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:50:38,186 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 13:50:38,186 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 13:50:38,186 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 13:50:38,186 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 13:50:38,190 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 13:50:38,220 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:38,270 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:38,283 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:38,298 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:38,299 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:38,300 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:38,304 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:38,305 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:38,307 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:38,313 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:38,342 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:38,439 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:38,443 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:38,470 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:38,508 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:38,536 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:38,536 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:38,542 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:38,552 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:38,553 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:38,564 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:38,564 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:38,583 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:38,596 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:38,619 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:38,626 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:38,665 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:38,673 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:38,700 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:38,734 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:38,783 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:38,805 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:38,830 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:38,860 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:38,876 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:38,884 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:38,910 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:38,917 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:38,951 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:38,985 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:39,006 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:39,008 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:39,008 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:39,030 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:39,034 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:39,040 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:39,045 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:39,069 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:39,070 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:39,072 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:39,077 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:39,084 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:39,089 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:39,092 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:39,093 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:39,095 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:39,100 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:39,104 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:39,104 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:39,105 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:39,139 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:39,139 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:39,154 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:39,154 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:39,170 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:39,170 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:39,179 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:39,180 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:39,192 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:39,248 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:39,257 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:39,263 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:39,264 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:39,267 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:39,271 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:39,275 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:39,277 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:39,278 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:39,279 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:39,281 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:39,283 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:39,288 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:39,293 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:39,314 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:39,341 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:39,347 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:50:39,684 WARN L180 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 11 [2018-11-18 13:50:40,105 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 19 [2018-11-18 13:50:40,535 WARN L180 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 30 [2018-11-18 13:50:40,703 WARN L180 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 17 [2018-11-18 13:50:40,923 WARN L180 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 21 [2018-11-18 13:50:41,194 WARN L180 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 22 [2018-11-18 13:50:41,401 WARN L180 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 35 [2018-11-18 13:50:41,520 WARN L180 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 16 [2018-11-18 13:50:41,704 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 15 [2018-11-18 13:50:41,852 WARN L180 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 20 [2018-11-18 13:50:42,064 WARN L180 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 20 [2018-11-18 13:50:42,170 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 14 [2018-11-18 13:50:42,640 WARN L180 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 22 [2018-11-18 13:50:42,973 WARN L180 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 25 [2018-11-18 13:50:43,573 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 23 [2018-11-18 13:50:43,728 INFO L428 ceAbstractionStarter]: At program point select_helpersFINAL(lines 729 735) the Hoare annotation is: true [2018-11-18 13:50:43,728 INFO L425 ceAbstractionStarter]: For program point select_helpersEXIT(lines 729 735) no Hoare annotation was computed. [2018-11-18 13:50:43,728 INFO L425 ceAbstractionStarter]: For program point valid_productEXIT(lines 736 744) no Hoare annotation was computed. [2018-11-18 13:50:43,728 INFO L428 ceAbstractionStarter]: At program point valid_productENTRY(lines 736 744) the Hoare annotation is: true [2018-11-18 13:50:43,728 INFO L425 ceAbstractionStarter]: For program point valid_productFINAL(lines 736 744) no Hoare annotation was computed. [2018-11-18 13:50:43,728 INFO L428 ceAbstractionStarter]: At program point L865(line 865) the Hoare annotation is: true [2018-11-18 13:50:43,728 INFO L425 ceAbstractionStarter]: For program point L865-1(line 865) no Hoare annotation was computed. [2018-11-18 13:50:43,728 INFO L428 ceAbstractionStarter]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 859 883) the Hoare annotation is: true [2018-11-18 13:50:43,729 INFO L425 ceAbstractionStarter]: For program point __utac_acc__Specification4_spec__1EXIT(lines 859 883) no Hoare annotation was computed. [2018-11-18 13:50:43,729 INFO L421 ceAbstractionStarter]: At program point L873(line 873) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 ~pumpRunning~0)) (< ~waterLevel~0 1) .cse0) (or (< ~waterLevel~0 2) .cse0))) [2018-11-18 13:50:43,729 INFO L425 ceAbstractionStarter]: For program point L871(lines 871 877) no Hoare annotation was computed. [2018-11-18 13:50:43,729 INFO L421 ceAbstractionStarter]: At program point L869(line 869) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 ~pumpRunning~0)) (< ~waterLevel~0 1) .cse0) (or (< ~waterLevel~0 2) .cse0))) [2018-11-18 13:50:43,729 INFO L425 ceAbstractionStarter]: For program point L869-1(line 869) no Hoare annotation was computed. [2018-11-18 13:50:43,729 INFO L425 ceAbstractionStarter]: For program point L867(lines 867 880) no Hoare annotation was computed. [2018-11-18 13:50:43,729 INFO L425 ceAbstractionStarter]: For program point L867-1(lines 859 883) no Hoare annotation was computed. [2018-11-18 13:50:43,729 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 957 979) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-11-18 13:50:43,729 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 957 979) no Hoare annotation was computed. [2018-11-18 13:50:43,729 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 957 979) no Hoare annotation was computed. [2018-11-18 13:50:43,730 INFO L421 ceAbstractionStarter]: At program point L969(line 969) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= main_~tmp~10 ~systemActive~0) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-11-18 13:50:43,730 INFO L421 ceAbstractionStarter]: At program point L969-1(line 969) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= main_~tmp~10 ~systemActive~0) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-11-18 13:50:43,730 INFO L425 ceAbstractionStarter]: For program point L967(lines 967 974) no Hoare annotation was computed. [2018-11-18 13:50:43,730 INFO L425 ceAbstractionStarter]: For program point L967-1(lines 967 974) no Hoare annotation was computed. [2018-11-18 13:50:43,730 INFO L425 ceAbstractionStarter]: For program point L965(line 965) no Hoare annotation was computed. [2018-11-18 13:50:43,730 INFO L421 ceAbstractionStarter]: At program point L964(line 964) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-11-18 13:50:43,730 INFO L421 ceAbstractionStarter]: At program point L963(line 963) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-11-18 13:50:43,730 INFO L421 ceAbstractionStarter]: At program point L963-1(line 963) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-11-18 13:50:43,731 INFO L425 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 624 632) no Hoare annotation was computed. [2018-11-18 13:50:43,731 INFO L428 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 624 632) the Hoare annotation is: true [2018-11-18 13:50:43,731 INFO L425 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 624 632) no Hoare annotation was computed. [2018-11-18 13:50:43,731 INFO L428 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 688 706) the Hoare annotation is: true [2018-11-18 13:50:43,731 INFO L425 ceAbstractionStarter]: For program point L697(lines 697 701) no Hoare annotation was computed. [2018-11-18 13:50:43,731 INFO L428 ceAbstractionStarter]: At program point L695(line 695) the Hoare annotation is: true [2018-11-18 13:50:43,731 INFO L425 ceAbstractionStarter]: For program point L697-2(lines 697 701) no Hoare annotation was computed. [2018-11-18 13:50:43,731 INFO L425 ceAbstractionStarter]: For program point L695-1(line 695) no Hoare annotation was computed. [2018-11-18 13:50:43,731 INFO L425 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 688 706) no Hoare annotation was computed. [2018-11-18 13:50:43,731 INFO L425 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 688 706) no Hoare annotation was computed. [2018-11-18 13:50:43,731 INFO L425 ceAbstractionStarter]: For program point select_featuresEXIT(lines 722 728) no Hoare annotation was computed. [2018-11-18 13:50:43,731 INFO L428 ceAbstractionStarter]: At program point select_featuresFINAL(lines 722 728) the Hoare annotation is: true [2018-11-18 13:50:43,731 INFO L421 ceAbstractionStarter]: At program point runTestENTRY(lines 947 956) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-11-18 13:50:43,731 INFO L425 ceAbstractionStarter]: For program point runTestEXIT(lines 947 956) no Hoare annotation was computed. [2018-11-18 13:50:43,732 INFO L425 ceAbstractionStarter]: For program point runTestFINAL(lines 947 956) no Hoare annotation was computed. [2018-11-18 13:50:43,732 INFO L428 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 613 623) the Hoare annotation is: true [2018-11-18 13:50:43,732 INFO L425 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 613 623) no Hoare annotation was computed. [2018-11-18 13:50:43,732 INFO L428 ceAbstractionStarter]: At program point L618(line 618) the Hoare annotation is: true [2018-11-18 13:50:43,732 INFO L425 ceAbstractionStarter]: For program point L618-1(line 618) no Hoare annotation was computed. [2018-11-18 13:50:43,732 INFO L425 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 613 623) no Hoare annotation was computed. [2018-11-18 13:50:43,732 INFO L421 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 605 612) the Hoare annotation is: (or (< ~waterLevel~0 1) (= |old(~pumpRunning~0)| 0) (not (= ~systemActive~0 1)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-11-18 13:50:43,732 INFO L425 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 605 612) no Hoare annotation was computed. [2018-11-18 13:50:43,732 INFO L425 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 605 612) no Hoare annotation was computed. [2018-11-18 13:50:43,732 INFO L425 ceAbstractionStarter]: For program point L839(lines 839 845) no Hoare annotation was computed. [2018-11-18 13:50:43,732 INFO L425 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 835 848) no Hoare annotation was computed. [2018-11-18 13:50:43,732 INFO L428 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 835 848) the Hoare annotation is: true [2018-11-18 13:50:43,732 INFO L425 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 835 848) no Hoare annotation was computed. [2018-11-18 13:50:43,732 INFO L425 ceAbstractionStarter]: For program point L578-1(line 578) no Hoare annotation was computed. [2018-11-18 13:50:43,732 INFO L425 ceAbstractionStarter]: For program point L576(lines 576 593) no Hoare annotation was computed. [2018-11-18 13:50:43,732 INFO L425 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 572 596) no Hoare annotation was computed. [2018-11-18 13:50:43,732 INFO L421 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 572 596) the Hoare annotation is: (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-11-18 13:50:43,732 INFO L421 ceAbstractionStarter]: At program point L591(line 591) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (= |old(~pumpRunning~0)| 0) .cse1) (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse0 .cse1))) [2018-11-18 13:50:43,732 INFO L425 ceAbstractionStarter]: For program point L591-1(lines 572 596) no Hoare annotation was computed. [2018-11-18 13:50:43,732 INFO L421 ceAbstractionStarter]: At program point L586(line 586) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or (= ~methaneLevelCritical~0 0) .cse0 .cse1) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or .cse0 .cse1 (and (= processEnvironment_~tmp~6 ~methaneLevelCritical~0) (= |old(~pumpRunning~0)| ~pumpRunning~0))))) [2018-11-18 13:50:43,733 INFO L421 ceAbstractionStarter]: At program point L582(line 582) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or (and (= processEnvironment_~tmp~6 ~methaneLevelCritical~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) .cse0 .cse1))) [2018-11-18 13:50:43,733 INFO L425 ceAbstractionStarter]: For program point L580(lines 580 588) no Hoare annotation was computed. [2018-11-18 13:50:43,733 INFO L421 ceAbstractionStarter]: At program point L578(line 578) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or .cse0 .cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)))) [2018-11-18 13:50:43,733 INFO L425 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 512 518) no Hoare annotation was computed. [2018-11-18 13:50:43,733 INFO L428 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 512 518) the Hoare annotation is: true [2018-11-18 13:50:43,733 INFO L421 ceAbstractionStarter]: At program point testENTRY(lines 410 473) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-11-18 13:50:43,733 INFO L421 ceAbstractionStarter]: At program point L442(line 442) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0) (and (<= 2 ~waterLevel~0) .cse0) (not (= ~systemActive~0 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-18 13:50:43,733 INFO L425 ceAbstractionStarter]: For program point L440(lines 440 446) no Hoare annotation was computed. [2018-11-18 13:50:43,733 INFO L425 ceAbstractionStarter]: For program point L440-1(lines 440 446) no Hoare annotation was computed. [2018-11-18 13:50:43,733 INFO L425 ceAbstractionStarter]: For program point testFINAL(lines 410 473) no Hoare annotation was computed. [2018-11-18 13:50:43,733 INFO L421 ceAbstractionStarter]: At program point L432(line 432) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (and (<= 2 ~waterLevel~0) .cse0) (not (= ~systemActive~0 1)) (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-18 13:50:43,733 INFO L421 ceAbstractionStarter]: At program point L463(lines 420 465) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0) (not (= ~systemActive~0 1)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse0) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-18 13:50:43,733 INFO L425 ceAbstractionStarter]: For program point L430(lines 430 436) no Hoare annotation was computed. [2018-11-18 13:50:43,733 INFO L425 ceAbstractionStarter]: For program point L430-1(lines 430 436) no Hoare annotation was computed. [2018-11-18 13:50:43,733 INFO L425 ceAbstractionStarter]: For program point L422(lines 422 426) no Hoare annotation was computed. [2018-11-18 13:50:43,733 INFO L425 ceAbstractionStarter]: For program point L420-1(lines 420 465) no Hoare annotation was computed. [2018-11-18 13:50:43,734 INFO L421 ceAbstractionStarter]: At program point L466(lines 419 467) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 13:50:43,734 INFO L425 ceAbstractionStarter]: For program point L456(lines 456 460) no Hoare annotation was computed. [2018-11-18 13:50:43,734 INFO L421 ceAbstractionStarter]: At program point L456-2(lines 450 461) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0) (and (<= 2 ~waterLevel~0) .cse0) (not (= ~systemActive~0 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-18 13:50:43,734 INFO L425 ceAbstractionStarter]: For program point L421(lines 420 465) no Hoare annotation was computed. [2018-11-18 13:50:43,734 INFO L425 ceAbstractionStarter]: For program point testEXIT(lines 410 473) no Hoare annotation was computed. [2018-11-18 13:50:43,734 INFO L425 ceAbstractionStarter]: For program point L450(lines 450 461) no Hoare annotation was computed. [2018-11-18 13:50:43,734 INFO L425 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 849 857) no Hoare annotation was computed. [2018-11-18 13:50:43,734 INFO L428 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 849 857) the Hoare annotation is: true [2018-11-18 13:50:43,734 INFO L425 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 849 857) no Hoare annotation was computed. [2018-11-18 13:50:43,734 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 13:50:43,734 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 13:50:43,734 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 13:50:43,734 INFO L425 ceAbstractionStarter]: For program point activatePumpFINAL(lines 597 604) no Hoare annotation was computed. [2018-11-18 13:50:43,734 INFO L425 ceAbstractionStarter]: For program point activatePumpEXIT(lines 597 604) no Hoare annotation was computed. [2018-11-18 13:50:43,734 INFO L421 ceAbstractionStarter]: At program point activatePumpENTRY(lines 597 604) the Hoare annotation is: (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1))) (< ~waterLevel~0 2)) [2018-11-18 13:50:43,734 INFO L428 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 826 834) the Hoare annotation is: true [2018-11-18 13:50:43,734 INFO L425 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 826 834) no Hoare annotation was computed. [2018-11-18 13:50:43,734 INFO L425 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 826 834) no Hoare annotation was computed. [2018-11-18 13:50:43,734 INFO L425 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 669 687) no Hoare annotation was computed. [2018-11-18 13:50:43,734 INFO L425 ceAbstractionStarter]: For program point L678(lines 678 682) no Hoare annotation was computed. [2018-11-18 13:50:43,735 INFO L428 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 669 687) the Hoare annotation is: true [2018-11-18 13:50:43,735 INFO L425 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 669 687) no Hoare annotation was computed. [2018-11-18 13:50:43,735 INFO L428 ceAbstractionStarter]: At program point L676(line 676) the Hoare annotation is: true [2018-11-18 13:50:43,735 INFO L425 ceAbstractionStarter]: For program point L678-2(lines 678 682) no Hoare annotation was computed. [2018-11-18 13:50:43,735 INFO L425 ceAbstractionStarter]: For program point L676-1(line 676) no Hoare annotation was computed. [2018-11-18 13:50:43,735 INFO L425 ceAbstractionStarter]: For program point L786-1(lines 782 793) no Hoare annotation was computed. [2018-11-18 13:50:43,735 INFO L421 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 782 793) the Hoare annotation is: (let ((.cse4 (= |old(~methaneLevelCritical~0)| 0))) (let ((.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse7 (< ~waterLevel~0 1)) (.cse1 (not (= |old(~methaneLevelCritical~0)| 1))) (.cse6 (not (= 0 ~pumpRunning~0))) (.cse0 (= ~methaneLevelCritical~0 1)) (.cse8 (= 0 ~methaneLevelCritical~0)) (.cse3 (< ~waterLevel~0 2)) (.cse2 (not (= ~systemActive~0 1))) (.cse9 (not .cse4))) (and (or .cse0 (or .cse1 .cse2) .cse3) (or (or .cse4 .cse2) .cse3 .cse5) (or .cse6 .cse4 .cse7 .cse5 .cse2) (or .cse8 .cse6 .cse7 .cse2 .cse9) (or .cse1 .cse6 .cse0 .cse2 (not (= ~waterLevel~0 1))) (or .cse8 .cse3 .cse2 .cse9)))) [2018-11-18 13:50:43,735 INFO L425 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 782 793) no Hoare annotation was computed. [2018-11-18 13:50:43,735 INFO L428 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 794 802) the Hoare annotation is: true [2018-11-18 13:50:43,735 INFO L425 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 794 802) no Hoare annotation was computed. [2018-11-18 13:50:43,735 INFO L425 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 794 802) no Hoare annotation was computed. [2018-11-18 13:50:43,735 INFO L425 ceAbstractionStarter]: For program point cleanupEXIT(lines 886 915) no Hoare annotation was computed. [2018-11-18 13:50:43,735 INFO L425 ceAbstractionStarter]: For program point L896-1(lines 896 910) no Hoare annotation was computed. [2018-11-18 13:50:43,735 INFO L428 ceAbstractionStarter]: At program point L896-3(lines 896 910) the Hoare annotation is: true [2018-11-18 13:50:43,735 INFO L428 ceAbstractionStarter]: At program point L892(line 892) the Hoare annotation is: true [2018-11-18 13:50:43,735 INFO L425 ceAbstractionStarter]: For program point L892-1(line 892) no Hoare annotation was computed. [2018-11-18 13:50:43,735 INFO L428 ceAbstractionStarter]: At program point L911(lines 886 915) the Hoare annotation is: true [2018-11-18 13:50:43,735 INFO L425 ceAbstractionStarter]: For program point L907(line 907) no Hoare annotation was computed. [2018-11-18 13:50:43,736 INFO L425 ceAbstractionStarter]: For program point L897(line 897) no Hoare annotation was computed. [2018-11-18 13:50:43,736 INFO L428 ceAbstractionStarter]: At program point cleanupENTRY(lines 886 915) the Hoare annotation is: true [2018-11-18 13:50:43,736 INFO L425 ceAbstractionStarter]: For program point L900(lines 900 904) no Hoare annotation was computed. [2018-11-18 13:50:43,736 INFO L428 ceAbstractionStarter]: At program point L900-1(lines 900 904) the Hoare annotation is: true [2018-11-18 13:50:43,736 INFO L421 ceAbstractionStarter]: At program point L501(line 501) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (not (= ~systemActive~0 1)))) (and (or (and (= ~waterLevel~0 |old(~waterLevel~0)|) .cse0) (not (= 0 |old(~pumpRunning~0)|)) (< |old(~waterLevel~0)| 1) .cse1) (or (and (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse0) (< |old(~waterLevel~0)| 2) .cse1))) [2018-11-18 13:50:43,736 INFO L421 ceAbstractionStarter]: At program point L499(lines 499 505) the Hoare annotation is: (let ((.cse1 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse0 (not (= ~systemActive~0 1)))) (and (or (or (or (not (= 0 |old(~pumpRunning~0)|)) .cse0) (not (= |old(~waterLevel~0)| 1))) (and .cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (or (and (not (= |old(~pumpRunning~0)| 0)) (= 0 ~pumpRunning~0) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) .cse1 (< |old(~waterLevel~0)| 2) .cse0))) [2018-11-18 13:50:43,736 INFO L421 ceAbstractionStarter]: At program point timeShiftENTRY(lines 488 511) the Hoare annotation is: (let ((.cse0 (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (not (= 0 |old(~pumpRunning~0)|)) (< |old(~waterLevel~0)| 1) .cse1) (or .cse0 (< |old(~waterLevel~0)| 2) .cse1))) [2018-11-18 13:50:43,736 INFO L421 ceAbstractionStarter]: At program point L494(line 494) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (< |old(~waterLevel~0)| 1) .cse0) (or (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (< |old(~waterLevel~0)| 2) .cse0))) [2018-11-18 13:50:43,736 INFO L425 ceAbstractionStarter]: For program point L492(lines 491 510) no Hoare annotation was computed. [2018-11-18 13:50:43,736 INFO L425 ceAbstractionStarter]: For program point timeShiftEXIT(lines 488 511) no Hoare annotation was computed. [2018-11-18 13:50:43,736 INFO L425 ceAbstractionStarter]: For program point timeShiftFINAL(lines 488 511) no Hoare annotation was computed. [2018-11-18 13:50:43,736 INFO L421 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 758 769) the Hoare annotation is: (or (= ~waterLevel~0 |old(~waterLevel~0)|) (or (= ~pumpRunning~0 0) (< |old(~waterLevel~0)| 2) (not (= ~systemActive~0 1)))) [2018-11-18 13:50:43,736 INFO L425 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 758 769) no Hoare annotation was computed. [2018-11-18 13:50:43,736 INFO L425 ceAbstractionStarter]: For program point L762-1(lines 758 769) no Hoare annotation was computed. [2018-11-18 13:50:43,736 INFO L425 ceAbstractionStarter]: For program point setupEXIT(lines 940 946) no Hoare annotation was computed. [2018-11-18 13:50:43,736 INFO L428 ceAbstractionStarter]: At program point setupFINAL(lines 940 946) the Hoare annotation is: true [2018-11-18 13:50:43,736 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 13:50:43,737 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 13:50:43,737 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 13:50:43,737 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 13:50:43,737 INFO L421 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 520 544) the Hoare annotation is: (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-11-18 13:50:43,737 INFO L425 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 520 544) no Hoare annotation was computed. [2018-11-18 13:50:43,737 INFO L421 ceAbstractionStarter]: At program point L539(line 539) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-11-18 13:50:43,737 INFO L425 ceAbstractionStarter]: For program point L539-1(lines 520 544) no Hoare annotation was computed. [2018-11-18 13:50:43,737 INFO L421 ceAbstractionStarter]: At program point L534(line 534) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1)) (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~4) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-11-18 13:50:43,737 INFO L421 ceAbstractionStarter]: At program point L530(line 530) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1)))) (and (or (or .cse0 (< ~waterLevel~0 2) .cse1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (or (or .cse0 .cse1) (not (= ~waterLevel~0 1))))) [2018-11-18 13:50:43,737 INFO L425 ceAbstractionStarter]: For program point L528(lines 528 536) no Hoare annotation was computed. [2018-11-18 13:50:43,738 INFO L421 ceAbstractionStarter]: At program point L526(line 526) the Hoare annotation is: (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-11-18 13:50:43,738 INFO L425 ceAbstractionStarter]: For program point L526-1(line 526) no Hoare annotation was computed. [2018-11-18 13:50:43,738 INFO L425 ceAbstractionStarter]: For program point L524(lines 524 541) no Hoare annotation was computed. [2018-11-18 13:50:43,738 INFO L425 ceAbstractionStarter]: For program point waterRiseEXIT(lines 770 781) no Hoare annotation was computed. [2018-11-18 13:50:43,738 INFO L425 ceAbstractionStarter]: For program point L774-1(lines 770 781) no Hoare annotation was computed. [2018-11-18 13:50:43,738 INFO L421 ceAbstractionStarter]: At program point waterRiseENTRY(lines 770 781) the Hoare annotation is: (let ((.cse1 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse0 (not (= ~systemActive~0 1)))) (and (or .cse0 (< |old(~waterLevel~0)| 2) .cse1) (or (< |old(~waterLevel~0)| 1) .cse1 (or (not (= 0 ~pumpRunning~0)) .cse0)))) [2018-11-18 13:50:43,738 INFO L425 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 746 753) no Hoare annotation was computed. [2018-11-18 13:50:43,738 INFO L425 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 750) no Hoare annotation was computed. [2018-11-18 13:50:43,738 INFO L428 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 746 753) the Hoare annotation is: true [2018-11-18 13:50:43,738 INFO L425 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 746 753) no Hoare annotation was computed. [2018-11-18 13:50:43,738 INFO L425 ceAbstractionStarter]: For program point processEnvironment__wrappee__lowWaterSensorEXIT(lines 546 570) no Hoare annotation was computed. [2018-11-18 13:50:43,739 INFO L421 ceAbstractionStarter]: At program point processEnvironment__wrappee__lowWaterSensorENTRY(lines 546 570) the Hoare annotation is: (let ((.cse1 (< ~waterLevel~0 1)) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) .cse1 .cse0 .cse2))) [2018-11-18 13:50:43,739 INFO L421 ceAbstractionStarter]: At program point L565(line 565) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (= |old(~pumpRunning~0)| 0) .cse1 (not (= ~methaneLevelCritical~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse1))) [2018-11-18 13:50:43,739 INFO L425 ceAbstractionStarter]: For program point L565-1(lines 546 570) no Hoare annotation was computed. [2018-11-18 13:50:43,739 INFO L421 ceAbstractionStarter]: At program point L560(line 560) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1))) [2018-11-18 13:50:43,739 INFO L421 ceAbstractionStarter]: At program point L556(line 556) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) (and (<= 1 processEnvironment__wrappee__lowWaterSensor_~tmp~5) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1))) [2018-11-18 13:50:43,739 INFO L425 ceAbstractionStarter]: For program point L554(lines 554 562) no Hoare annotation was computed. [2018-11-18 13:50:43,739 INFO L421 ceAbstractionStarter]: At program point L552(line 552) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) (= |old(~pumpRunning~0)| ~pumpRunning~0)))) [2018-11-18 13:50:43,739 INFO L425 ceAbstractionStarter]: For program point L552-1(line 552) no Hoare annotation was computed. [2018-11-18 13:50:43,739 INFO L425 ceAbstractionStarter]: For program point L550(lines 550 567) no Hoare annotation was computed. [2018-11-18 13:50:43,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 01:50:43 BoogieIcfgContainer [2018-11-18 13:50:43,753 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 13:50:43,753 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 13:50:43,753 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 13:50:43,754 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 13:50:43,754 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:50:07" (3/4) ... [2018-11-18 13:50:43,756 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 13:50:43,761 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-11-18 13:50:43,762 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-11-18 13:50:43,762 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification4_spec__1 [2018-11-18 13:50:43,762 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 13:50:43,762 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-11-18 13:50:43,762 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterLevel [2018-11-18 13:50:43,762 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-11-18 13:50:43,762 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-11-18 13:50:43,762 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2018-11-18 13:50:43,762 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-11-18 13:50:43,762 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-11-18 13:50:43,762 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-11-18 13:50:43,763 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-11-18 13:50:43,763 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-11-18 13:50:43,763 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterSensorDry [2018-11-18 13:50:43,763 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 13:50:43,763 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-11-18 13:50:43,763 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure getWaterLevel [2018-11-18 13:50:43,763 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-11-18 13:50:43,763 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-11-18 13:50:43,763 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2018-11-18 13:50:43,763 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-11-18 13:50:43,763 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-11-18 13:50:43,763 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-11-18 13:50:43,763 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-11-18 13:50:43,764 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2018-11-18 13:50:43,764 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-11-18 13:50:43,764 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-11-18 13:50:43,764 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__lowWaterSensor [2018-11-18 13:50:43,772 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 40 nodes and edges [2018-11-18 13:50:43,772 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-11-18 13:50:43,773 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-18 13:50:43,798 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((0 == pumpRunning && 1 <= waterLevel) && splverifierCounter == 0) || !(systemActive == 1)) || !(0 == \old(pumpRunning))) || (2 <= waterLevel && splverifierCounter == 0)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-11-18 13:50:43,798 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(0 == \old(pumpRunning)) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-11-18 13:50:43,831 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_1ce0802c-ce45-4a81-9012-491b4de52d69/bin-2019/utaipan/witness.graphml [2018-11-18 13:50:43,832 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 13:50:43,832 INFO L168 Benchmark]: Toolchain (without parser) took 36928.33 ms. Allocated memory was 1.0 GB in the beginning and 3.3 GB in the end (delta: 2.3 GB). Free memory was 956.6 MB in the beginning and 2.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 1.0 GB. Max. memory is 11.5 GB. [2018-11-18 13:50:43,833 INFO L168 Benchmark]: CDTParser took 0.16 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 13:50:43,833 INFO L168 Benchmark]: CACSL2BoogieTranslator took 383.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -171.8 MB). Peak memory consumption was 32.1 MB. Max. memory is 11.5 GB. [2018-11-18 13:50:43,833 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.33 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:50:43,833 INFO L168 Benchmark]: Boogie Preprocessor took 29.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-18 13:50:43,834 INFO L168 Benchmark]: RCFGBuilder took 586.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 58.1 MB). Peak memory consumption was 58.1 MB. Max. memory is 11.5 GB. [2018-11-18 13:50:43,834 INFO L168 Benchmark]: TraceAbstraction took 35819.58 ms. Allocated memory was 1.2 GB in the beginning and 3.3 GB in the end (delta: 2.1 GB). Free memory was 1.1 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 2.5 GB. Max. memory is 11.5 GB. [2018-11-18 13:50:43,834 INFO L168 Benchmark]: Witness Printer took 78.34 ms. Allocated memory is still 3.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 87.4 kB). Peak memory consumption was 87.4 kB. Max. memory is 11.5 GB. [2018-11-18 13:50:43,836 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 383.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -171.8 MB). Peak memory consumption was 32.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.33 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 586.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 58.1 MB). Peak memory consumption was 58.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 35819.58 ms. Allocated memory was 1.2 GB in the beginning and 3.3 GB in the end (delta: 2.1 GB). Free memory was 1.1 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 2.5 GB. Max. memory is 11.5 GB. * Witness Printer took 78.34 ms. Allocated memory is still 3.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 87.4 kB). Peak memory consumption was 87.4 kB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 750]: 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: 420]: Loop Invariant Derived loop invariant: ((((((0 == pumpRunning && 1 <= waterLevel) && splverifierCounter == 0) || !(systemActive == 1)) || !(0 == \old(pumpRunning))) || (2 <= waterLevel && splverifierCounter == 0)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 886]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 419]: Loop Invariant Derived loop invariant: ((!(0 == \old(pumpRunning)) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 896]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 30 procedures, 161 locations, 1 error locations. SAFE Result, 35.7s OverallTime, 17 OverallIterations, 4 TraceHistogramMax, 16.4s AutomataDifference, 0.0s DeadEndRemovalTime, 5.5s HoareAnnotationTime, HoareTripleCheckerStatistics: 3554 SDtfs, 4193 SDslu, 11912 SDs, 0 SdLazy, 8807 SolverSat, 1592 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.5s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 3242 GetRequests, 2990 SyntacticMatches, 22 SemanticMatches, 230 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 874 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2672occurred in iteration=14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 7.4s AbstIntTime, 10 AbstIntIterations, 5 AbstIntStrong, 0.9982056400297271 AbsIntWeakeningRatio, 0.8548850574712644 AbsIntAvgWeakeningVarsNumRemoved, 37.01149425287356 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 17 MinimizatonAttempts, 1130 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 66 LocationsWithAnnotation, 5590 PreInvPairs, 5788 NumberOfFragments, 1211 HoareAnnotationTreeSize, 5590 FomulaSimplifications, 40421 FormulaSimplificationTreeSizeReduction, 1.2s HoareSimplificationTime, 66 FomulaSimplificationsInter, 64304 FormulaSimplificationTreeSizeReductionInter, 4.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 3617 NumberOfCodeBlocks, 3617 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 4759 ConstructedInterpolants, 0 QuantifiedInterpolants, 1234568 SizeOfPredicates, 26 NumberOfNonLiveVariables, 4750 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 27 InterpolantComputations, 10 PerfectInterpolantSequences, 2314/2460 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...