./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product58_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_7bbe542c-6e55-4f88-afd6-d105d95a2962/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7bbe542c-6e55-4f88-afd6-d105d95a2962/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7bbe542c-6e55-4f88-afd6-d105d95a2962/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7bbe542c-6e55-4f88-afd6-d105d95a2962/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product58_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_7bbe542c-6e55-4f88-afd6-d105d95a2962/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7bbe542c-6e55-4f88-afd6-d105d95a2962/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 99a0574ff0f23dd43b458f22f446fd063a15f78d .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-22 21:30:36,945 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-22 21:30:36,946 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-22 21:30:36,953 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-22 21:30:36,953 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-22 21:30:36,954 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-22 21:30:36,955 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-22 21:30:36,956 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-22 21:30:36,957 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-22 21:30:36,957 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-22 21:30:36,958 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-22 21:30:36,958 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-22 21:30:36,959 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-22 21:30:36,959 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-22 21:30:36,960 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-22 21:30:36,960 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-22 21:30:36,961 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-22 21:30:36,962 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-22 21:30:36,964 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-22 21:30:36,965 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-22 21:30:36,965 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-22 21:30:36,966 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-22 21:30:36,968 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-22 21:30:36,968 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-22 21:30:36,968 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-22 21:30:36,969 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-22 21:30:36,969 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-22 21:30:36,970 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-22 21:30:36,970 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-22 21:30:36,971 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-22 21:30:36,971 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-22 21:30:36,972 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-22 21:30:36,972 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-22 21:30:36,972 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-22 21:30:36,973 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-22 21:30:36,973 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-22 21:30:36,973 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7bbe542c-6e55-4f88-afd6-d105d95a2962/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-22 21:30:36,982 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-22 21:30:36,983 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-22 21:30:36,983 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-22 21:30:36,983 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-22 21:30:36,983 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-22 21:30:36,983 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-22 21:30:36,984 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-22 21:30:36,984 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-22 21:30:36,984 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-22 21:30:36,984 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-22 21:30:36,984 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-22 21:30:36,984 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-22 21:30:36,984 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-22 21:30:36,985 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-22 21:30:36,985 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-22 21:30:36,985 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-22 21:30:36,985 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-22 21:30:36,985 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-22 21:30:36,985 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-22 21:30:36,985 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-22 21:30:36,985 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-22 21:30:36,986 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-22 21:30:36,986 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-22 21:30:36,986 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-22 21:30:36,986 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-22 21:30:36,986 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-22 21:30:36,986 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-22 21:30:36,986 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-22 21:30:36,987 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-22 21:30:36,987 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-22 21:30:36,987 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-22 21:30:36,987 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-22 21:30:36,987 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-22 21:30:36,987 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-22 21:30:36,987 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-22 21:30:36,988 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-22 21:30:36,988 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-22 21:30:36,988 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_7bbe542c-6e55-4f88-afd6-d105d95a2962/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 -> 99a0574ff0f23dd43b458f22f446fd063a15f78d [2018-11-22 21:30:37,010 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-22 21:30:37,018 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-22 21:30:37,020 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-22 21:30:37,021 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-22 21:30:37,021 INFO L276 PluginConnector]: CDTParser initialized [2018-11-22 21:30:37,021 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7bbe542c-6e55-4f88-afd6-d105d95a2962/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product58_true-unreach-call_false-termination.cil.c [2018-11-22 21:30:37,057 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7bbe542c-6e55-4f88-afd6-d105d95a2962/bin-2019/utaipan/data/ccca81e8f/a241a7677caa4018889d93427789227f/FLAG040566f11 [2018-11-22 21:30:37,489 INFO L307 CDTParser]: Found 1 translation units. [2018-11-22 21:30:37,490 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7bbe542c-6e55-4f88-afd6-d105d95a2962/sv-benchmarks/c/product-lines/minepump_spec4_product58_true-unreach-call_false-termination.cil.c [2018-11-22 21:30:37,497 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7bbe542c-6e55-4f88-afd6-d105d95a2962/bin-2019/utaipan/data/ccca81e8f/a241a7677caa4018889d93427789227f/FLAG040566f11 [2018-11-22 21:30:37,505 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7bbe542c-6e55-4f88-afd6-d105d95a2962/bin-2019/utaipan/data/ccca81e8f/a241a7677caa4018889d93427789227f [2018-11-22 21:30:37,506 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-22 21:30:37,507 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-22 21:30:37,508 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-22 21:30:37,508 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-22 21:30:37,510 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-22 21:30:37,510 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:30:37" (1/1) ... [2018-11-22 21:30:37,512 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44db1cb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:30:37, skipping insertion in model container [2018-11-22 21:30:37,512 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:30:37" (1/1) ... [2018-11-22 21:30:37,518 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-22 21:30:37,548 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-22 21:30:37,733 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 21:30:37,743 INFO L191 MainTranslator]: Completed pre-run [2018-11-22 21:30:37,842 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 21:30:37,858 INFO L195 MainTranslator]: Completed translation [2018-11-22 21:30:37,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:30:37 WrapperNode [2018-11-22 21:30:37,859 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-22 21:30:37,860 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-22 21:30:37,860 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-22 21:30:37,860 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-22 21:30:37,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:30:37" (1/1) ... [2018-11-22 21:30:37,882 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:30:37" (1/1) ... [2018-11-22 21:30:37,889 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-22 21:30:37,889 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-22 21:30:37,889 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-22 21:30:37,889 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-22 21:30:37,898 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:30:37" (1/1) ... [2018-11-22 21:30:37,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:30:37" (1/1) ... [2018-11-22 21:30:37,901 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:30:37" (1/1) ... [2018-11-22 21:30:37,901 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:30:37" (1/1) ... [2018-11-22 21:30:37,912 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:30:37" (1/1) ... [2018-11-22 21:30:37,918 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:30:37" (1/1) ... [2018-11-22 21:30:37,921 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:30:37" (1/1) ... [2018-11-22 21:30:37,923 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-22 21:30:37,924 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-22 21:30:37,924 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-22 21:30:37,924 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-22 21:30:37,925 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:30:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7bbe542c-6e55-4f88-afd6-d105d95a2962/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 [2018-11-22 21:30:37,967 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-11-22 21:30:37,967 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-11-22 21:30:37,967 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2018-11-22 21:30:37,967 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2018-11-22 21:30:37,967 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-22 21:30:37,967 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-22 21:30:37,968 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-11-22 21:30:37,968 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-11-22 21:30:37,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-22 21:30:37,968 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-11-22 21:30:37,968 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-11-22 21:30:37,968 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-11-22 21:30:37,968 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-11-22 21:30:37,968 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-11-22 21:30:37,968 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-11-22 21:30:37,969 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-11-22 21:30:37,969 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-11-22 21:30:37,969 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-11-22 21:30:37,969 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-11-22 21:30:37,969 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2018-11-22 21:30:37,969 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2018-11-22 21:30:37,969 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-11-22 21:30:37,969 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-11-22 21:30:37,969 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-11-22 21:30:37,969 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-11-22 21:30:37,970 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-11-22 21:30:37,970 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-11-22 21:30:37,970 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-11-22 21:30:37,970 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-11-22 21:30:37,970 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-11-22 21:30:37,970 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-11-22 21:30:37,970 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-11-22 21:30:37,970 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-11-22 21:30:37,970 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-11-22 21:30:37,971 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-11-22 21:30:37,971 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-11-22 21:30:37,971 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-11-22 21:30:37,971 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2018-11-22 21:30:37,971 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2018-11-22 21:30:37,971 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-11-22 21:30:37,971 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-11-22 21:30:37,971 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-11-22 21:30:37,971 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-11-22 21:30:37,972 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-11-22 21:30:37,972 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-11-22 21:30:37,972 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-11-22 21:30:37,972 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-11-22 21:30:37,972 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-11-22 21:30:37,972 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-11-22 21:30:37,972 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-11-22 21:30:37,972 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-11-22 21:30:37,972 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-11-22 21:30:37,973 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-11-22 21:30:37,973 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-11-22 21:30:37,973 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-11-22 21:30:37,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-22 21:30:37,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-22 21:30:37,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-22 21:30:37,973 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-11-22 21:30:37,973 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-11-22 21:30:37,973 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-11-22 21:30:37,973 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-11-22 21:30:37,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-22 21:30:37,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-22 21:30:38,396 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-22 21:30:38,396 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-22 21:30:38,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:30:38 BoogieIcfgContainer [2018-11-22 21:30:38,397 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-22 21:30:38,398 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-22 21:30:38,398 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-22 21:30:38,401 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-22 21:30:38,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 09:30:37" (1/3) ... [2018-11-22 21:30:38,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a6f659a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:30:38, skipping insertion in model container [2018-11-22 21:30:38,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:30:37" (2/3) ... [2018-11-22 21:30:38,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a6f659a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:30:38, skipping insertion in model container [2018-11-22 21:30:38,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:30:38" (3/3) ... [2018-11-22 21:30:38,405 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product58_true-unreach-call_false-termination.cil.c [2018-11-22 21:30:38,414 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-22 21:30:38,424 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-22 21:30:38,438 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-22 21:30:38,465 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-22 21:30:38,465 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-22 21:30:38,465 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-22 21:30:38,465 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-22 21:30:38,465 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-22 21:30:38,465 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-22 21:30:38,465 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-22 21:30:38,465 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-22 21:30:38,483 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states. [2018-11-22 21:30:38,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-22 21:30:38,490 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:30:38,491 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 21:30:38,493 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:30:38,497 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:30:38,498 INFO L82 PathProgramCache]: Analyzing trace with hash 345966289, now seen corresponding path program 1 times [2018-11-22 21:30:38,500 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 21:30:38,543 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:30:38,543 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:30:38,543 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:30:38,544 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 21:30:38,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:30:38,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:30:38,702 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 21:30:38,702 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-22 21:30:38,702 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 21:30:38,708 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-22 21:30:38,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-22 21:30:38,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-22 21:30:38,721 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 2 states. [2018-11-22 21:30:38,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:30:38,756 INFO L93 Difference]: Finished difference Result 294 states and 357 transitions. [2018-11-22 21:30:38,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-22 21:30:38,757 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-11-22 21:30:38,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:30:38,769 INFO L225 Difference]: With dead ends: 294 [2018-11-22 21:30:38,769 INFO L226 Difference]: Without dead ends: 147 [2018-11-22 21:30:38,773 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-22 21:30:38,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2018-11-22 21:30:38,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2018-11-22 21:30:38,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2018-11-22 21:30:38,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 170 transitions. [2018-11-22 21:30:38,822 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 170 transitions. Word has length 46 [2018-11-22 21:30:38,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:30:38,823 INFO L480 AbstractCegarLoop]: Abstraction has 147 states and 170 transitions. [2018-11-22 21:30:38,823 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-22 21:30:38,823 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 170 transitions. [2018-11-22 21:30:38,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-11-22 21:30:38,825 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:30:38,826 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 21:30:38,826 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:30:38,826 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:30:38,826 INFO L82 PathProgramCache]: Analyzing trace with hash 1633337234, now seen corresponding path program 1 times [2018-11-22 21:30:38,827 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 21:30:38,827 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:30:38,828 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:30:38,828 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:30:38,828 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 21:30:38,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:30:38,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:30:38,906 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 21:30:38,906 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-22 21:30:38,907 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 21:30:38,908 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-22 21:30:38,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-22 21:30:38,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-22 21:30:38,908 INFO L87 Difference]: Start difference. First operand 147 states and 170 transitions. Second operand 3 states. [2018-11-22 21:30:38,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:30:38,928 INFO L93 Difference]: Finished difference Result 239 states and 275 transitions. [2018-11-22 21:30:38,929 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-22 21:30:38,929 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-11-22 21:30:38,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:30:38,931 INFO L225 Difference]: With dead ends: 239 [2018-11-22 21:30:38,931 INFO L226 Difference]: Without dead ends: 138 [2018-11-22 21:30:38,932 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-22 21:30:38,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2018-11-22 21:30:38,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2018-11-22 21:30:38,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2018-11-22 21:30:38,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 158 transitions. [2018-11-22 21:30:38,944 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 158 transitions. Word has length 47 [2018-11-22 21:30:38,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:30:38,944 INFO L480 AbstractCegarLoop]: Abstraction has 138 states and 158 transitions. [2018-11-22 21:30:38,944 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-22 21:30:38,944 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 158 transitions. [2018-11-22 21:30:38,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-11-22 21:30:38,946 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:30:38,946 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 21:30:38,947 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:30:38,948 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:30:38,948 INFO L82 PathProgramCache]: Analyzing trace with hash 2041048239, now seen corresponding path program 1 times [2018-11-22 21:30:38,948 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 21:30:38,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:30:38,949 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:30:38,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:30:38,949 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 21:30:38,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:30:39,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:30:39,063 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 21:30:39,063 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-22 21:30:39,063 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 21:30:39,064 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-22 21:30:39,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-22 21:30:39,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-22 21:30:39,064 INFO L87 Difference]: Start difference. First operand 138 states and 158 transitions. Second operand 7 states. [2018-11-22 21:30:39,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:30:39,287 INFO L93 Difference]: Finished difference Result 252 states and 293 transitions. [2018-11-22 21:30:39,287 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-22 21:30:39,288 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2018-11-22 21:30:39,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:30:39,289 INFO L225 Difference]: With dead ends: 252 [2018-11-22 21:30:39,289 INFO L226 Difference]: Without dead ends: 138 [2018-11-22 21:30:39,289 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-22 21:30:39,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2018-11-22 21:30:39,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2018-11-22 21:30:39,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2018-11-22 21:30:39,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 157 transitions. [2018-11-22 21:30:39,301 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 157 transitions. Word has length 52 [2018-11-22 21:30:39,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:30:39,302 INFO L480 AbstractCegarLoop]: Abstraction has 138 states and 157 transitions. [2018-11-22 21:30:39,302 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-22 21:30:39,302 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 157 transitions. [2018-11-22 21:30:39,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-11-22 21:30:39,304 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:30:39,304 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 21:30:39,304 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:30:39,304 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:30:39,304 INFO L82 PathProgramCache]: Analyzing trace with hash -507321815, now seen corresponding path program 1 times [2018-11-22 21:30:39,304 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 21:30:39,305 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:30:39,305 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:30:39,306 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:30:39,306 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 21:30:39,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:30:39,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:30:39,386 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 21:30:39,386 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-22 21:30:39,386 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 21:30:39,387 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-22 21:30:39,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-22 21:30:39,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-22 21:30:39,387 INFO L87 Difference]: Start difference. First operand 138 states and 157 transitions. Second operand 5 states. [2018-11-22 21:30:39,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:30:39,767 INFO L93 Difference]: Finished difference Result 353 states and 419 transitions. [2018-11-22 21:30:39,768 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-22 21:30:39,769 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 65 [2018-11-22 21:30:39,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:30:39,771 INFO L225 Difference]: With dead ends: 353 [2018-11-22 21:30:39,771 INFO L226 Difference]: Without dead ends: 239 [2018-11-22 21:30:39,772 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-22 21:30:39,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2018-11-22 21:30:39,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 220. [2018-11-22 21:30:39,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2018-11-22 21:30:39,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 248 transitions. [2018-11-22 21:30:39,811 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 248 transitions. Word has length 65 [2018-11-22 21:30:39,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:30:39,812 INFO L480 AbstractCegarLoop]: Abstraction has 220 states and 248 transitions. [2018-11-22 21:30:39,812 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-22 21:30:39,812 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 248 transitions. [2018-11-22 21:30:39,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-11-22 21:30:39,814 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:30:39,814 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 21:30:39,817 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:30:39,817 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:30:39,817 INFO L82 PathProgramCache]: Analyzing trace with hash -465750265, now seen corresponding path program 1 times [2018-11-22 21:30:39,817 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 21:30:39,818 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:30:39,818 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:30:39,818 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:30:39,818 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 21:30:39,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:30:39,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:30:39,921 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 21:30:39,921 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-22 21:30:39,921 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 21:30:39,922 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-22 21:30:39,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-22 21:30:39,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-22 21:30:39,923 INFO L87 Difference]: Start difference. First operand 220 states and 248 transitions. Second operand 8 states. [2018-11-22 21:30:39,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:30:39,952 INFO L93 Difference]: Finished difference Result 423 states and 489 transitions. [2018-11-22 21:30:39,953 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-22 21:30:39,954 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 79 [2018-11-22 21:30:39,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:30:39,957 INFO L225 Difference]: With dead ends: 423 [2018-11-22 21:30:39,957 INFO L226 Difference]: Without dead ends: 227 [2018-11-22 21:30:39,958 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-22 21:30:39,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2018-11-22 21:30:39,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 224. [2018-11-22 21:30:39,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2018-11-22 21:30:39,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 252 transitions. [2018-11-22 21:30:39,975 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 252 transitions. Word has length 79 [2018-11-22 21:30:39,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:30:39,976 INFO L480 AbstractCegarLoop]: Abstraction has 224 states and 252 transitions. [2018-11-22 21:30:39,976 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-22 21:30:39,976 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 252 transitions. [2018-11-22 21:30:39,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-11-22 21:30:39,977 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:30:39,977 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 21:30:39,978 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:30:39,978 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:30:39,978 INFO L82 PathProgramCache]: Analyzing trace with hash -1851953659, now seen corresponding path program 1 times [2018-11-22 21:30:39,978 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 21:30:39,979 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:30:39,979 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:30:39,979 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:30:39,979 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 21:30:39,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:30:40,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:30:40,066 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 21:30:40,066 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-22 21:30:40,066 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 21:30:40,067 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-22 21:30:40,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-22 21:30:40,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-11-22 21:30:40,067 INFO L87 Difference]: Start difference. First operand 224 states and 252 transitions. Second operand 10 states. [2018-11-22 21:30:40,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:30:40,366 INFO L93 Difference]: Finished difference Result 726 states and 882 transitions. [2018-11-22 21:30:40,366 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-22 21:30:40,367 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 79 [2018-11-22 21:30:40,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:30:40,369 INFO L225 Difference]: With dead ends: 726 [2018-11-22 21:30:40,369 INFO L226 Difference]: Without dead ends: 526 [2018-11-22 21:30:40,370 INFO L631 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 [2018-11-22 21:30:40,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2018-11-22 21:30:40,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 516. [2018-11-22 21:30:40,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 516 states. [2018-11-22 21:30:40,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 597 transitions. [2018-11-22 21:30:40,398 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 597 transitions. Word has length 79 [2018-11-22 21:30:40,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:30:40,399 INFO L480 AbstractCegarLoop]: Abstraction has 516 states and 597 transitions. [2018-11-22 21:30:40,399 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-22 21:30:40,399 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 597 transitions. [2018-11-22 21:30:40,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2018-11-22 21:30:40,401 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:30:40,402 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 21:30:40,402 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:30:40,402 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:30:40,402 INFO L82 PathProgramCache]: Analyzing trace with hash -1363463537, now seen corresponding path program 1 times [2018-11-22 21:30:40,403 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 21:30:40,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:30:40,403 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:30:40,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:30:40,403 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 21:30:40,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:30:40,482 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 18 proven. 9 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-11-22 21:30:40,482 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 21:30:40,482 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-22 21:30:40,483 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 155 with the following transitions: [2018-11-22 21:30:40,484 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [50], [53], [55], [56], [59], [74], [77], [78], [81], [83], [84], [85], [94], [98], [102], [105], [110], [116], [118], [124], [129], [137], [138], [141], [142], [143], [145], [150], [153], [154], [156], [159], [163], [164], [165], [166], [179], [183], [189], [216], [217], [225], [231], [234], [236], [239], [242], [249], [252], [256], [257], [260], [261], [262], [263], [264], [266], [267], [268], [269], [270], [271], [272], [273], [274], [278], [280], [281], [288], [289], [290], [291], [296], [297], [300], [301], [302], [303], [304], [305], [308], [309], [310], [311], [316], [317], [318], [320], [321], [322], [323], [324], [325] [2018-11-22 21:30:40,512 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-22 21:30:40,513 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-22 21:30:40,877 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-22 21:30:40,878 INFO L272 AbstractInterpreter]: Visited 51 different actions 51 times. Never merged. Never widened. Performed 2055 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2055 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-11-22 21:30:40,884 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:30:40,884 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-22 21:30:41,154 INFO L227 lantSequenceWeakener]: Weakened 76 states. On average, predicates are now at 96.79% of their original sizes. [2018-11-22 21:30:41,154 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-22 21:30:41,236 INFO L415 sIntCurrentIteration]: We unified 153 AI predicates to 153 [2018-11-22 21:30:41,236 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-22 21:30:41,237 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-22 21:30:41,237 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [6] total 18 [2018-11-22 21:30:41,237 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 21:30:41,237 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-22 21:30:41,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-22 21:30:41,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2018-11-22 21:30:41,238 INFO L87 Difference]: Start difference. First operand 516 states and 597 transitions. Second operand 14 states. [2018-11-22 21:30:43,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:30:43,915 INFO L93 Difference]: Finished difference Result 1380 states and 1649 transitions. [2018-11-22 21:30:43,915 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-22 21:30:43,915 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 154 [2018-11-22 21:30:43,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:30:43,919 INFO L225 Difference]: With dead ends: 1380 [2018-11-22 21:30:43,919 INFO L226 Difference]: Without dead ends: 888 [2018-11-22 21:30:43,921 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 153 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2018-11-22 21:30:43,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 888 states. [2018-11-22 21:30:43,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 888 to 867. [2018-11-22 21:30:43,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 867 states. [2018-11-22 21:30:43,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1002 transitions. [2018-11-22 21:30:43,968 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1002 transitions. Word has length 154 [2018-11-22 21:30:43,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:30:43,969 INFO L480 AbstractCegarLoop]: Abstraction has 867 states and 1002 transitions. [2018-11-22 21:30:43,969 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-22 21:30:43,969 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1002 transitions. [2018-11-22 21:30:43,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2018-11-22 21:30:43,972 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:30:43,972 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 21:30:43,973 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:30:43,973 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:30:43,973 INFO L82 PathProgramCache]: Analyzing trace with hash 1569601444, now seen corresponding path program 1 times [2018-11-22 21:30:43,973 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 21:30:43,974 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:30:43,974 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:30:43,974 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:30:43,974 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 21:30:43,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:30:44,045 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-22 21:30:44,046 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 21:30:44,046 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-22 21:30:44,046 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 154 with the following transitions: [2018-11-22 21:30:44,047 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], [64], [67], [74], [77], [78], [81], [83], [85], [94], [98], [102], [105], [108], [110], [113], [116], [118], [124], [129], [137], [138], [139], [140], [141], [142], [143], [145], [150], [153], [154], [156], [159], [163], [164], [165], [166], [171], [173], [176], [179], [183], [189], [216], [217], [220], [224], [225], [231], [234], [236], [239], [249], [252], [256], [257], [260], [261], [262], [263], [264], [266], [267], [268], [269], [270], [271], [272], [273], [274], [276], [277], [278], [280], [281], [282], [283], [284], [285], [288], [289], [290], [291], [292], [293], [296], [297], [300], [301], [302], [303], [304], [305], [306], [307], [308], [309], [310], [311], [316], [317], [318], [320], [321], [322], [323] [2018-11-22 21:30:44,052 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-22 21:30:44,054 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-22 21:30:46,296 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-22 21:30:46,296 INFO L272 AbstractInterpreter]: Visited 133 different actions 1417 times. Merged at 21 different actions 125 times. Widened at 1 different actions 1 times. Performed 53897 root evaluator evaluations with a maximum evaluation depth of 5. Performed 53897 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 25 fixpoints after 7 different actions. Largest state had 133 variables. [2018-11-22 21:30:46,302 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:30:46,303 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-22 21:30:46,303 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 21:30:46,303 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7bbe542c-6e55-4f88-afd6-d105d95a2962/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 [2018-11-22 21:30:46,313 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:30:46,314 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-22 21:30:46,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:30:46,494 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:30:46,614 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-22 21:30:46,614 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-22 21:30:47,390 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-22 21:30:47,413 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-22 21:30:47,413 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [6, 9] total 18 [2018-11-22 21:30:47,413 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 21:30:47,414 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-22 21:30:47,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-22 21:30:47,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2018-11-22 21:30:47,414 INFO L87 Difference]: Start difference. First operand 867 states and 1002 transitions. Second operand 8 states. [2018-11-22 21:30:47,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:30:47,711 INFO L93 Difference]: Finished difference Result 2120 states and 2487 transitions. [2018-11-22 21:30:47,713 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-22 21:30:47,713 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153 [2018-11-22 21:30:47,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:30:47,719 INFO L225 Difference]: With dead ends: 2120 [2018-11-22 21:30:47,719 INFO L226 Difference]: Without dead ends: 1277 [2018-11-22 21:30:47,722 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 287 SyntacticMatches, 8 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2018-11-22 21:30:47,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1277 states. [2018-11-22 21:30:47,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1277 to 1274. [2018-11-22 21:30:47,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1274 states. [2018-11-22 21:30:47,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1274 states to 1274 states and 1461 transitions. [2018-11-22 21:30:47,795 INFO L78 Accepts]: Start accepts. Automaton has 1274 states and 1461 transitions. Word has length 153 [2018-11-22 21:30:47,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:30:47,795 INFO L480 AbstractCegarLoop]: Abstraction has 1274 states and 1461 transitions. [2018-11-22 21:30:47,795 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-22 21:30:47,796 INFO L276 IsEmpty]: Start isEmpty. Operand 1274 states and 1461 transitions. [2018-11-22 21:30:47,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-11-22 21:30:47,799 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:30:47,799 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 21:30:47,799 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:30:47,800 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:30:47,800 INFO L82 PathProgramCache]: Analyzing trace with hash -1517889466, now seen corresponding path program 1 times [2018-11-22 21:30:47,800 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 21:30:47,801 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:30:47,801 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:30:47,801 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:30:47,801 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 21:30:47,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:30:47,868 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-22 21:30:47,868 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 21:30:47,868 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-22 21:30:47,869 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 146 with the following transitions: [2018-11-22 21:30:47,869 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], [64], [67], [74], [77], [78], [81], [83], [85], [94], [98], [102], [108], [110], [116], [118], [124], [129], [137], [138], [139], [140], [141], [142], [143], [145], [150], [153], [154], [156], [159], [163], [164], [165], [166], [176], [179], [183], [189], [216], [217], [220], [224], [225], [231], [234], [236], [239], [249], [257], [260], [261], [262], [263], [264], [266], [267], [268], [269], [270], [271], [272], [273], [274], [276], [277], [278], [280], [281], [282], [283], [284], [285], [288], [289], [296], [297], [300], [301], [302], [303], [304], [305], [306], [307], [308], [309], [310], [311], [316], [317], [318], [320], [321], [322], [323] [2018-11-22 21:30:47,874 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-22 21:30:47,874 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-22 21:30:48,833 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-22 21:30:48,833 INFO L272 AbstractInterpreter]: Visited 123 different actions 457 times. Merged at 17 different actions 37 times. Never widened. Performed 14758 root evaluator evaluations with a maximum evaluation depth of 5. Performed 14758 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 5 fixpoints after 2 different actions. Largest state had 133 variables. [2018-11-22 21:30:48,838 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:30:48,838 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-22 21:30:48,838 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 21:30:48,838 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7bbe542c-6e55-4f88-afd6-d105d95a2962/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 [2018-11-22 21:30:48,845 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:30:48,845 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-22 21:30:48,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:30:48,943 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:30:48,993 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-22 21:30:48,993 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-22 21:30:49,178 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-22 21:30:49,202 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-22 21:30:49,202 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 6 [2018-11-22 21:30:49,202 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 21:30:49,203 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-22 21:30:49,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-22 21:30:49,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-22 21:30:49,203 INFO L87 Difference]: Start difference. First operand 1274 states and 1461 transitions. Second operand 6 states. [2018-11-22 21:30:49,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:30:49,287 INFO L93 Difference]: Finished difference Result 2256 states and 2652 transitions. [2018-11-22 21:30:49,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-22 21:30:49,290 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 145 [2018-11-22 21:30:49,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:30:49,295 INFO L225 Difference]: With dead ends: 2256 [2018-11-22 21:30:49,295 INFO L226 Difference]: Without dead ends: 1006 [2018-11-22 21:30:49,297 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 285 SyntacticMatches, 6 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-22 21:30:49,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1006 states. [2018-11-22 21:30:49,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1006 to 998. [2018-11-22 21:30:49,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 998 states. [2018-11-22 21:30:49,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1141 transitions. [2018-11-22 21:30:49,332 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1141 transitions. Word has length 145 [2018-11-22 21:30:49,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:30:49,333 INFO L480 AbstractCegarLoop]: Abstraction has 998 states and 1141 transitions. [2018-11-22 21:30:49,333 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-22 21:30:49,333 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1141 transitions. [2018-11-22 21:30:49,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-11-22 21:30:49,335 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:30:49,335 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 21:30:49,335 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:30:49,335 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:30:49,335 INFO L82 PathProgramCache]: Analyzing trace with hash 1531555343, now seen corresponding path program 1 times [2018-11-22 21:30:49,336 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 21:30:49,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:30:49,336 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:30:49,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:30:49,336 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 21:30:49,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:30:49,403 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-22 21:30:49,403 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 21:30:49,403 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-22 21:30:49,403 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 21:30:49,404 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-22 21:30:49,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-22 21:30:49,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-22 21:30:49,404 INFO L87 Difference]: Start difference. First operand 998 states and 1141 transitions. Second operand 6 states. [2018-11-22 21:30:49,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:30:49,442 INFO L93 Difference]: Finished difference Result 1659 states and 1926 transitions. [2018-11-22 21:30:49,443 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-22 21:30:49,443 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 149 [2018-11-22 21:30:49,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:30:49,445 INFO L225 Difference]: With dead ends: 1659 [2018-11-22 21:30:49,446 INFO L226 Difference]: Without dead ends: 1018 [2018-11-22 21:30:49,447 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-22 21:30:49,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1018 states. [2018-11-22 21:30:49,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1018 to 1018. [2018-11-22 21:30:49,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1018 states. [2018-11-22 21:30:49,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1018 states to 1018 states and 1161 transitions. [2018-11-22 21:30:49,473 INFO L78 Accepts]: Start accepts. Automaton has 1018 states and 1161 transitions. Word has length 149 [2018-11-22 21:30:49,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:30:49,474 INFO L480 AbstractCegarLoop]: Abstraction has 1018 states and 1161 transitions. [2018-11-22 21:30:49,474 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-22 21:30:49,474 INFO L276 IsEmpty]: Start isEmpty. Operand 1018 states and 1161 transitions. [2018-11-22 21:30:49,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-11-22 21:30:49,475 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:30:49,476 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 21:30:49,476 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:30:49,476 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:30:49,476 INFO L82 PathProgramCache]: Analyzing trace with hash 1022082253, now seen corresponding path program 1 times [2018-11-22 21:30:49,476 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 21:30:49,477 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:30:49,477 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:30:49,477 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:30:49,477 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 21:30:49,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:30:49,540 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-22 21:30:49,541 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 21:30:49,541 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-22 21:30:49,541 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 21:30:49,541 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-22 21:30:49,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-22 21:30:49,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-22 21:30:49,542 INFO L87 Difference]: Start difference. First operand 1018 states and 1161 transitions. Second operand 6 states. [2018-11-22 21:30:49,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:30:49,637 INFO L93 Difference]: Finished difference Result 1029 states and 1173 transitions. [2018-11-22 21:30:49,638 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-22 21:30:49,638 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 149 [2018-11-22 21:30:49,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:30:49,641 INFO L225 Difference]: With dead ends: 1029 [2018-11-22 21:30:49,641 INFO L226 Difference]: Without dead ends: 1026 [2018-11-22 21:30:49,641 INFO L631 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 [2018-11-22 21:30:49,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1026 states. [2018-11-22 21:30:49,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1026 to 1018. [2018-11-22 21:30:49,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1018 states. [2018-11-22 21:30:49,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1018 states to 1018 states and 1159 transitions. [2018-11-22 21:30:49,669 INFO L78 Accepts]: Start accepts. Automaton has 1018 states and 1159 transitions. Word has length 149 [2018-11-22 21:30:49,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:30:49,669 INFO L480 AbstractCegarLoop]: Abstraction has 1018 states and 1159 transitions. [2018-11-22 21:30:49,670 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-22 21:30:49,670 INFO L276 IsEmpty]: Start isEmpty. Operand 1018 states and 1159 transitions. [2018-11-22 21:30:49,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2018-11-22 21:30:49,672 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:30:49,672 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 21:30:49,672 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:30:49,672 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:30:49,672 INFO L82 PathProgramCache]: Analyzing trace with hash -2058920796, now seen corresponding path program 1 times [2018-11-22 21:30:49,673 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 21:30:49,673 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:30:49,673 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:30:49,673 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:30:49,673 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 21:30:49,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:30:49,775 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-22 21:30:49,776 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 21:30:49,776 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-22 21:30:49,776 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 154 with the following transitions: [2018-11-22 21:30:49,776 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], [62], [64], [70], [74], [77], [78], [82], [83], [84], [85], [94], [98], [102], [105], [108], [110], [116], [118], [124], [129], [137], [138], [139], [140], [141], [142], [143], [145], [150], [153], [154], [156], [161], [163], [164], [165], [166], [176], [179], [183], [189], [216], [217], [220], [224], [225], [231], [234], [236], [239], [246], [249], [252], [256], [257], [260], [261], [262], [263], [264], [266], [267], [268], [269], [270], [271], [272], [273], [274], [276], [277], [278], [280], [281], [282], [283], [286], [287], [288], [289], [290], [291], [296], [297], [300], [301], [302], [303], [304], [305], [306], [307], [308], [309], [310], [311], [316], [317], [318], [320], [321], [322], [323], [326], [327] [2018-11-22 21:30:49,778 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-22 21:30:49,778 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-22 21:30:50,504 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-22 21:30:50,504 INFO L272 AbstractInterpreter]: Visited 130 different actions 595 times. Merged at 16 different actions 46 times. Never widened. Performed 18721 root evaluator evaluations with a maximum evaluation depth of 5. Performed 18721 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 9 fixpoints after 3 different actions. Largest state had 133 variables. [2018-11-22 21:30:50,514 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:30:50,514 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-22 21:30:50,514 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 21:30:50,514 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7bbe542c-6e55-4f88-afd6-d105d95a2962/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 [2018-11-22 21:30:50,532 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:30:50,532 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-22 21:30:50,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:30:50,610 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:30:50,658 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:30:50,658 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-22 21:30:50,842 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 19 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-22 21:30:50,858 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-22 21:30:50,859 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 17 [2018-11-22 21:30:50,859 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-22 21:30:50,859 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-22 21:30:50,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-22 21:30:50,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2018-11-22 21:30:50,860 INFO L87 Difference]: Start difference. First operand 1018 states and 1159 transitions. Second operand 14 states. [2018-11-22 21:30:52,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:30:52,186 INFO L93 Difference]: Finished difference Result 2407 states and 3118 transitions. [2018-11-22 21:30:52,186 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-11-22 21:30:52,186 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 153 [2018-11-22 21:30:52,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:30:52,192 INFO L225 Difference]: With dead ends: 2407 [2018-11-22 21:30:52,192 INFO L226 Difference]: Without dead ends: 1746 [2018-11-22 21:30:52,195 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 301 SyntacticMatches, 6 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=265, Invalid=995, Unknown=0, NotChecked=0, Total=1260 [2018-11-22 21:30:52,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1746 states. [2018-11-22 21:30:52,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1746 to 1490. [2018-11-22 21:30:52,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1490 states. [2018-11-22 21:30:52,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1490 states to 1490 states and 1734 transitions. [2018-11-22 21:30:52,254 INFO L78 Accepts]: Start accepts. Automaton has 1490 states and 1734 transitions. Word has length 153 [2018-11-22 21:30:52,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:30:52,255 INFO L480 AbstractCegarLoop]: Abstraction has 1490 states and 1734 transitions. [2018-11-22 21:30:52,255 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-22 21:30:52,255 INFO L276 IsEmpty]: Start isEmpty. Operand 1490 states and 1734 transitions. [2018-11-22 21:30:52,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2018-11-22 21:30:52,258 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:30:52,259 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 21:30:52,259 INFO L423 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:30:52,259 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:30:52,259 INFO L82 PathProgramCache]: Analyzing trace with hash -2014696091, now seen corresponding path program 1 times [2018-11-22 21:30:52,259 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 21:30:52,260 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:30:52,260 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:30:52,260 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:30:52,260 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 21:30:52,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:30:52,356 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 41 proven. 8 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2018-11-22 21:30:52,356 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 21:30:52,356 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-22 21:30:52,356 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 208 with the following transitions: [2018-11-22 21:30:52,356 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], [62], [64], [70], [74], [77], [78], [82], [83], [84], [85], [94], [98], [102], [105], [108], [110], [116], [118], [124], [129], [137], [138], [139], [140], [141], [142], [143], [145], [150], [153], [154], [156], [161], [163], [164], [165], [166], [176], [179], [183], [189], [216], [217], [220], [224], [225], [231], [234], [236], [239], [246], [249], [252], [256], [257], [260], [261], [262], [263], [264], [266], [267], [268], [269], [270], [271], [272], [273], [274], [276], [277], [278], [280], [281], [282], [283], [286], [287], [288], [289], [290], [291], [296], [297], [300], [301], [302], [303], [304], [305], [306], [307], [308], [309], [310], [311], [316], [317], [318], [320], [321], [322], [323], [326], [327] [2018-11-22 21:30:52,358 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-22 21:30:52,359 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-22 21:30:53,163 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-22 21:30:53,163 INFO L272 AbstractInterpreter]: Visited 131 different actions 607 times. Merged at 19 different actions 55 times. Never widened. Performed 19003 root evaluator evaluations with a maximum evaluation depth of 5. Performed 19003 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 12 fixpoints after 4 different actions. Largest state had 133 variables. [2018-11-22 21:30:53,170 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:30:53,170 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-22 21:30:53,170 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 21:30:53,170 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7bbe542c-6e55-4f88-afd6-d105d95a2962/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 [2018-11-22 21:30:53,185 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:30:53,185 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-22 21:30:53,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:30:53,327 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:30:53,399 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-11-22 21:30:53,399 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-22 21:30:53,595 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 41 proven. 8 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2018-11-22 21:30:53,612 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-22 21:30:53,612 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [9, 6] total 13 [2018-11-22 21:30:53,613 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 21:30:53,613 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-22 21:30:53,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-22 21:30:53,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-11-22 21:30:53,613 INFO L87 Difference]: Start difference. First operand 1490 states and 1734 transitions. Second operand 6 states. [2018-11-22 21:30:53,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:30:53,656 INFO L93 Difference]: Finished difference Result 1898 states and 2208 transitions. [2018-11-22 21:30:53,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-22 21:30:53,657 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 207 [2018-11-22 21:30:53,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:30:53,658 INFO L225 Difference]: With dead ends: 1898 [2018-11-22 21:30:53,658 INFO L226 Difference]: Without dead ends: 0 [2018-11-22 21:30:53,661 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 409 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2018-11-22 21:30:53,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-22 21:30:53,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-22 21:30:53,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-22 21:30:53,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-22 21:30:53,662 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 207 [2018-11-22 21:30:53,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:30:53,662 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-22 21:30:53,662 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-22 21:30:53,662 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-22 21:30:53,662 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-22 21:30:53,666 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-22 21:30:53,760 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:30:53,761 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:30:53,761 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:30:53,762 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:30:53,762 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:30:53,763 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:30:53,764 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:30:53,764 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:30:53,765 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:30:53,766 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:30:53,766 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:30:53,767 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:30:53,768 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:30:53,769 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:30:53,817 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:30:53,818 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:30:53,819 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:30:53,819 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:30:53,820 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:30:53,820 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:30:53,821 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:30:53,821 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:30:53,822 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:30:53,824 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:30:53,825 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:30:53,825 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:30:53,826 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:30:53,827 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:30:53,834 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:30:53,835 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:30:53,835 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:30:53,836 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:30:53,836 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:30:53,837 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:30:53,838 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:30:53,839 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:30:53,839 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:30:53,839 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:30:53,858 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:30:53,860 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:30:53,882 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:30:53,883 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:30:53,886 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:30:53,973 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:30:53,984 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:30:53,984 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:30:53,985 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:30:53,985 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:30:53,986 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:30:53,986 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:30:53,987 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:30:53,987 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:30:53,988 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:30:53,989 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:30:53,989 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:30:53,989 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:30:53,990 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:30:54,377 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 34 [2018-11-22 21:30:55,493 INFO L451 ceAbstractionStarter]: At program point select_helpersFINAL(lines 674 680) the Hoare annotation is: true [2018-11-22 21:30:55,493 INFO L448 ceAbstractionStarter]: For program point select_helpersEXIT(lines 674 680) no Hoare annotation was computed. [2018-11-22 21:30:55,493 INFO L448 ceAbstractionStarter]: For program point valid_productEXIT(lines 681 689) no Hoare annotation was computed. [2018-11-22 21:30:55,494 INFO L451 ceAbstractionStarter]: At program point valid_productENTRY(lines 681 689) the Hoare annotation is: true [2018-11-22 21:30:55,494 INFO L448 ceAbstractionStarter]: For program point valid_productFINAL(lines 681 689) no Hoare annotation was computed. [2018-11-22 21:30:55,494 INFO L448 ceAbstractionStarter]: For program point L417(lines 417 430) no Hoare annotation was computed. [2018-11-22 21:30:55,494 INFO L448 ceAbstractionStarter]: For program point L417-1(lines 409 433) no Hoare annotation was computed. [2018-11-22 21:30:55,494 INFO L451 ceAbstractionStarter]: At program point L415(line 415) the Hoare annotation is: true [2018-11-22 21:30:55,494 INFO L451 ceAbstractionStarter]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 409 433) the Hoare annotation is: true [2018-11-22 21:30:55,494 INFO L448 ceAbstractionStarter]: For program point L415-1(line 415) no Hoare annotation was computed. [2018-11-22 21:30:55,494 INFO L448 ceAbstractionStarter]: For program point __utac_acc__Specification4_spec__1EXIT(lines 409 433) no Hoare annotation was computed. [2018-11-22 21:30:55,494 INFO L444 ceAbstractionStarter]: At program point L423(line 423) 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))) [2018-11-22 21:30:55,494 INFO L448 ceAbstractionStarter]: For program point L421(lines 421 427) no Hoare annotation was computed. [2018-11-22 21:30:55,494 INFO L444 ceAbstractionStarter]: At program point L419(line 419) 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))) [2018-11-22 21:30:55,494 INFO L448 ceAbstractionStarter]: For program point L419-1(line 419) no Hoare annotation was computed. [2018-11-22 21:30:55,494 INFO L448 ceAbstractionStarter]: For program point L642-1(lines 642 649) no Hoare annotation was computed. [2018-11-22 21:30:55,495 INFO L448 ceAbstractionStarter]: For program point L640(line 640) no Hoare annotation was computed. [2018-11-22 21:30:55,495 INFO L444 ceAbstractionStarter]: At program point L639(line 639) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-11-22 21:30:55,495 INFO L444 ceAbstractionStarter]: At program point L638(line 638) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-11-22 21:30:55,495 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 632 654) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-11-22 21:30:55,495 INFO L444 ceAbstractionStarter]: At program point L638-1(line 638) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-11-22 21:30:55,495 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 632 654) no Hoare annotation was computed. [2018-11-22 21:30:55,495 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 632 654) no Hoare annotation was computed. [2018-11-22 21:30:55,495 INFO L444 ceAbstractionStarter]: At program point L644(line 644) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= main_~tmp~4 ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-22 21:30:55,496 INFO L444 ceAbstractionStarter]: At program point L644-1(line 644) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= main_~tmp~4 ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-22 21:30:55,496 INFO L448 ceAbstractionStarter]: For program point L642(lines 642 649) no Hoare annotation was computed. [2018-11-22 21:30:55,496 INFO L448 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 825 833) no Hoare annotation was computed. [2018-11-22 21:30:55,496 INFO L451 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 825 833) the Hoare annotation is: true [2018-11-22 21:30:55,496 INFO L448 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 825 833) no Hoare annotation was computed. [2018-11-22 21:30:55,496 INFO L451 ceAbstractionStarter]: At program point L896(line 896) the Hoare annotation is: true [2018-11-22 21:30:55,496 INFO L448 ceAbstractionStarter]: For program point L898-2(lines 898 902) no Hoare annotation was computed. [2018-11-22 21:30:55,496 INFO L448 ceAbstractionStarter]: For program point L896-1(line 896) no Hoare annotation was computed. [2018-11-22 21:30:55,496 INFO L451 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 889 907) the Hoare annotation is: true [2018-11-22 21:30:55,496 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 889 907) no Hoare annotation was computed. [2018-11-22 21:30:55,496 INFO L448 ceAbstractionStarter]: For program point L898(lines 898 902) no Hoare annotation was computed. [2018-11-22 21:30:55,496 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 889 907) no Hoare annotation was computed. [2018-11-22 21:30:55,496 INFO L448 ceAbstractionStarter]: For program point select_featuresEXIT(lines 667 673) no Hoare annotation was computed. [2018-11-22 21:30:55,497 INFO L451 ceAbstractionStarter]: At program point select_featuresFINAL(lines 667 673) the Hoare annotation is: true [2018-11-22 21:30:55,497 INFO L444 ceAbstractionStarter]: At program point runTestENTRY(lines 619 628) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-11-22 21:30:55,497 INFO L448 ceAbstractionStarter]: For program point runTestEXIT(lines 619 628) no Hoare annotation was computed. [2018-11-22 21:30:55,497 INFO L448 ceAbstractionStarter]: For program point runTestFINAL(lines 619 628) no Hoare annotation was computed. [2018-11-22 21:30:55,497 INFO L451 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 814 824) the Hoare annotation is: true [2018-11-22 21:30:55,497 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 814 824) no Hoare annotation was computed. [2018-11-22 21:30:55,497 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 814 824) no Hoare annotation was computed. [2018-11-22 21:30:55,497 INFO L451 ceAbstractionStarter]: At program point L819(line 819) the Hoare annotation is: true [2018-11-22 21:30:55,497 INFO L448 ceAbstractionStarter]: For program point L819-1(line 819) no Hoare annotation was computed. [2018-11-22 21:30:55,497 INFO L444 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 806 813) the Hoare annotation is: (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 1) (= |old(~pumpRunning~0)| 0) (not (= ~systemActive~0 1))) [2018-11-22 21:30:55,497 INFO L448 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 806 813) no Hoare annotation was computed. [2018-11-22 21:30:55,498 INFO L448 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 806 813) no Hoare annotation was computed. [2018-11-22 21:30:55,498 INFO L444 ceAbstractionStarter]: At program point L769(line 769) the Hoare annotation is: (or (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-11-22 21:30:55,498 INFO L444 ceAbstractionStarter]: At program point L765(line 765) 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 (and (<= 1 processEnvironment_~tmp~6) (= |old(~pumpRunning~0)| ~pumpRunning~0))))) [2018-11-22 21:30:55,498 INFO L448 ceAbstractionStarter]: For program point L763(lines 763 771) no Hoare annotation was computed. [2018-11-22 21:30:55,498 INFO L444 ceAbstractionStarter]: At program point L761(line 761) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse0 .cse1))) [2018-11-22 21:30:55,498 INFO L448 ceAbstractionStarter]: For program point L761-1(line 761) no Hoare annotation was computed. [2018-11-22 21:30:55,498 INFO L448 ceAbstractionStarter]: For program point L759(lines 759 776) no Hoare annotation was computed. [2018-11-22 21:30:55,498 INFO L448 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 755 779) no Hoare annotation was computed. [2018-11-22 21:30:55,498 INFO L444 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 755 779) the Hoare annotation is: (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-11-22 21:30:55,499 INFO L444 ceAbstractionStarter]: At program point L774(line 774) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (or .cse0 (= |old(~pumpRunning~0)| 0) .cse1))) [2018-11-22 21:30:55,499 INFO L448 ceAbstractionStarter]: For program point L774-1(lines 755 779) no Hoare annotation was computed. [2018-11-22 21:30:55,499 INFO L448 ceAbstractionStarter]: For program point L534(lines 534 540) no Hoare annotation was computed. [2018-11-22 21:30:55,499 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 530 543) no Hoare annotation was computed. [2018-11-22 21:30:55,499 INFO L451 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 530 543) the Hoare annotation is: true [2018-11-22 21:30:55,499 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 530 543) no Hoare annotation was computed. [2018-11-22 21:30:55,499 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 721 727) no Hoare annotation was computed. [2018-11-22 21:30:55,499 INFO L451 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 721 727) the Hoare annotation is: true [2018-11-22 21:30:55,499 INFO L448 ceAbstractionStarter]: For program point L929(lines 929 933) no Hoare annotation was computed. [2018-11-22 21:30:55,499 INFO L444 ceAbstractionStarter]: At program point testENTRY(lines 917 982) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-11-22 21:30:55,499 INFO L448 ceAbstractionStarter]: For program point testFINAL(lines 917 982) no Hoare annotation was computed. [2018-11-22 21:30:55,500 INFO L444 ceAbstractionStarter]: At program point L975(lines 926 976) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-22 21:30:55,500 INFO L448 ceAbstractionStarter]: For program point L965(lines 965 969) no Hoare annotation was computed. [2018-11-22 21:30:55,500 INFO L444 ceAbstractionStarter]: At program point L965-2(lines 957 970) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0 .cse1) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse0 .cse1) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-22 21:30:55,500 INFO L448 ceAbstractionStarter]: For program point L928(lines 927 974) no Hoare annotation was computed. [2018-11-22 21:30:55,500 INFO L444 ceAbstractionStarter]: At program point L959(line 959) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0 .cse1) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse0 .cse1) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-22 21:30:55,500 INFO L448 ceAbstractionStarter]: For program point L957(lines 957 970) no Hoare annotation was computed. [2018-11-22 21:30:55,500 INFO L444 ceAbstractionStarter]: At program point L949(line 949) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0 .cse1) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse0 .cse1) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-22 21:30:55,500 INFO L448 ceAbstractionStarter]: For program point L947(lines 947 953) no Hoare annotation was computed. [2018-11-22 21:30:55,500 INFO L448 ceAbstractionStarter]: For program point L947-1(lines 947 953) no Hoare annotation was computed. [2018-11-22 21:30:55,501 INFO L444 ceAbstractionStarter]: At program point L972(lines 927 974) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0 .cse1) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse0 .cse1) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-22 21:30:55,501 INFO L444 ceAbstractionStarter]: At program point L939(line 939) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0 .cse1) (not (= |old(~systemActive~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse0 .cse1) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-22 21:30:55,501 INFO L448 ceAbstractionStarter]: For program point L937(lines 937 943) no Hoare annotation was computed. [2018-11-22 21:30:55,501 INFO L448 ceAbstractionStarter]: For program point L937-1(lines 937 943) no Hoare annotation was computed. [2018-11-22 21:30:55,501 INFO L448 ceAbstractionStarter]: For program point testEXIT(lines 917 982) no Hoare annotation was computed. [2018-11-22 21:30:55,501 INFO L444 ceAbstractionStarter]: At program point activatePump__wrappee__lowWaterSensorENTRY(lines 780 787) the Hoare annotation is: (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 2) (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)))) [2018-11-22 21:30:55,501 INFO L448 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorFINAL(lines 780 787) no Hoare annotation was computed. [2018-11-22 21:30:55,501 INFO L448 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 780 787) no Hoare annotation was computed. [2018-11-22 21:30:55,501 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 544 552) no Hoare annotation was computed. [2018-11-22 21:30:55,501 INFO L451 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 544 552) the Hoare annotation is: true [2018-11-22 21:30:55,501 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 544 552) no Hoare annotation was computed. [2018-11-22 21:30:55,501 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-22 21:30:55,502 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-11-22 21:30:55,502 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-22 21:30:55,502 INFO L444 ceAbstractionStarter]: At program point L800(line 800) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (< ~waterLevel~0 2)) (.cse2 (not (= ~systemActive~0 1)))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2) (or .cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse1 .cse2))) [2018-11-22 21:30:55,502 INFO L448 ceAbstractionStarter]: For program point L800-1(lines 789 805) no Hoare annotation was computed. [2018-11-22 21:30:55,502 INFO L448 ceAbstractionStarter]: For program point L796(lines 796 802) no Hoare annotation was computed. [2018-11-22 21:30:55,502 INFO L448 ceAbstractionStarter]: For program point activatePumpEXIT(lines 789 805) no Hoare annotation was computed. [2018-11-22 21:30:55,502 INFO L444 ceAbstractionStarter]: At program point L794(line 794) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 2) (not (= ~systemActive~0 1))) [2018-11-22 21:30:55,502 INFO L448 ceAbstractionStarter]: For program point L794-1(line 794) no Hoare annotation was computed. [2018-11-22 21:30:55,502 INFO L444 ceAbstractionStarter]: At program point activatePumpENTRY(lines 789 805) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 2) (not (= ~systemActive~0 1))) [2018-11-22 21:30:55,502 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 870 888) no Hoare annotation was computed. [2018-11-22 21:30:55,502 INFO L448 ceAbstractionStarter]: For program point L879(lines 879 883) no Hoare annotation was computed. [2018-11-22 21:30:55,502 INFO L451 ceAbstractionStarter]: At program point L877(line 877) the Hoare annotation is: true [2018-11-22 21:30:55,503 INFO L448 ceAbstractionStarter]: For program point L879-2(lines 879 883) no Hoare annotation was computed. [2018-11-22 21:30:55,503 INFO L448 ceAbstractionStarter]: For program point L877-1(line 877) no Hoare annotation was computed. [2018-11-22 21:30:55,503 INFO L451 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 870 888) the Hoare annotation is: true [2018-11-22 21:30:55,503 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 870 888) no Hoare annotation was computed. [2018-11-22 21:30:55,503 INFO L451 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 521 529) the Hoare annotation is: true [2018-11-22 21:30:55,503 INFO L448 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 521 529) no Hoare annotation was computed. [2018-11-22 21:30:55,503 INFO L448 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 521 529) no Hoare annotation was computed. [2018-11-22 21:30:55,503 INFO L448 ceAbstractionStarter]: For program point L481-1(lines 477 488) no Hoare annotation was computed. [2018-11-22 21:30:55,503 INFO L444 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 477 488) the Hoare annotation is: (let ((.cse0 (not (= 0 ~pumpRunning~0))) (.cse3 (= ~methaneLevelCritical~0 0)) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (not (= |old(~methaneLevelCritical~0)| 0)))) (and (or .cse0 .cse1 (not (= ~waterLevel~0 1)) .cse2 .cse3) (or (< |old(~methaneLevelCritical~0)| 1) .cse0 (< ~waterLevel~0 1) .cse1 (<= 1 ~methaneLevelCritical~0)) (or .cse3 .cse1 .cse2 (not (= ~waterLevel~0 2))))) [2018-11-22 21:30:55,503 INFO L448 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 477 488) no Hoare annotation was computed. [2018-11-22 21:30:55,503 INFO L444 ceAbstractionStarter]: At program point L703(line 703) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (or (< |old(~waterLevel~0)| 2) .cse0) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (or (not (= 0 |old(~pumpRunning~0)|)) (< |old(~waterLevel~0)| 1) .cse0))) [2018-11-22 21:30:55,503 INFO L448 ceAbstractionStarter]: For program point L701(lines 700 719) no Hoare annotation was computed. [2018-11-22 21:30:55,504 INFO L444 ceAbstractionStarter]: At program point timeShiftENTRY(lines 697 720) the Hoare annotation is: (let ((.cse1 (not (= ~systemActive~0 1))) (.cse0 (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)))) (and (or .cse0 (or (< |old(~waterLevel~0)| 2) .cse1)) (or (not (= 0 |old(~pumpRunning~0)|)) (< |old(~waterLevel~0)| 1) .cse1 .cse0))) [2018-11-22 21:30:55,504 INFO L448 ceAbstractionStarter]: For program point timeShiftEXIT(lines 697 720) no Hoare annotation was computed. [2018-11-22 21:30:55,504 INFO L448 ceAbstractionStarter]: For program point timeShiftFINAL(lines 697 720) no Hoare annotation was computed. [2018-11-22 21:30:55,504 INFO L444 ceAbstractionStarter]: At program point L710(line 710) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (< |old(~waterLevel~0)| 1) .cse0 (and (= ~waterLevel~0 |old(~waterLevel~0)|) .cse1)) (or (and (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse1) (or (< |old(~waterLevel~0)| 2) .cse0)))) [2018-11-22 21:30:55,504 INFO L444 ceAbstractionStarter]: At program point L708(lines 708 714) the Hoare annotation is: (let ((.cse4 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse5 (= ~systemActive~0 1))) (let ((.cse0 (= 0 ~pumpRunning~0)) (.cse2 (< |old(~waterLevel~0)| 2)) (.cse1 (and (<= 2 ~waterLevel~0) .cse4 .cse5)) (.cse3 (not .cse5))) (and (or (and .cse0 (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) .cse1 (or .cse2 .cse3)) (or .cse0 (or (< ~methaneLevelCritical~0 1) .cse2 .cse3)) (or (not (= 0 |old(~pumpRunning~0)|)) .cse1 (< |old(~waterLevel~0)| 1) .cse3 (and .cse4 (= |old(~pumpRunning~0)| ~pumpRunning~0)))))) [2018-11-22 21:30:55,504 INFO L448 ceAbstractionStarter]: For program point L577(line 577) no Hoare annotation was computed. [2018-11-22 21:30:55,504 INFO L448 ceAbstractionStarter]: For program point cleanupEXIT(lines 556 585) no Hoare annotation was computed. [2018-11-22 21:30:55,504 INFO L451 ceAbstractionStarter]: At program point cleanupENTRY(lines 556 585) the Hoare annotation is: true [2018-11-22 21:30:55,504 INFO L448 ceAbstractionStarter]: For program point L570(lines 570 574) no Hoare annotation was computed. [2018-11-22 21:30:55,504 INFO L451 ceAbstractionStarter]: At program point L570-1(lines 570 574) the Hoare annotation is: true [2018-11-22 21:30:55,504 INFO L448 ceAbstractionStarter]: For program point L567(line 567) no Hoare annotation was computed. [2018-11-22 21:30:55,504 INFO L451 ceAbstractionStarter]: At program point L566-2(lines 566 580) the Hoare annotation is: true [2018-11-22 21:30:55,504 INFO L451 ceAbstractionStarter]: At program point L562(line 562) the Hoare annotation is: true [2018-11-22 21:30:55,504 INFO L448 ceAbstractionStarter]: For program point L562-1(line 562) no Hoare annotation was computed. [2018-11-22 21:30:55,504 INFO L451 ceAbstractionStarter]: At program point L581(lines 556 585) the Hoare annotation is: true [2018-11-22 21:30:55,504 INFO L451 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 489 497) the Hoare annotation is: true [2018-11-22 21:30:55,504 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 489 497) no Hoare annotation was computed. [2018-11-22 21:30:55,504 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 489 497) no Hoare annotation was computed. [2018-11-22 21:30:55,504 INFO L444 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 453 464) the Hoare annotation is: (or (or (= ~pumpRunning~0 0) (< |old(~waterLevel~0)| 2) (not (= ~systemActive~0 1))) (= ~waterLevel~0 |old(~waterLevel~0)|)) [2018-11-22 21:30:55,504 INFO L448 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 453 464) no Hoare annotation was computed. [2018-11-22 21:30:55,505 INFO L448 ceAbstractionStarter]: For program point L457-1(lines 453 464) no Hoare annotation was computed. [2018-11-22 21:30:55,505 INFO L448 ceAbstractionStarter]: For program point setupEXIT(lines 611 617) no Hoare annotation was computed. [2018-11-22 21:30:55,505 INFO L451 ceAbstractionStarter]: At program point setupFINAL(lines 611 617) the Hoare annotation is: true [2018-11-22 21:30:55,505 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-22 21:30:55,505 INFO L444 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)) [2018-11-22 21:30:55,505 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-22 21:30:55,505 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-22 21:30:55,505 INFO L448 ceAbstractionStarter]: For program point startSystemEXIT(lines 908 915) no Hoare annotation was computed. [2018-11-22 21:30:55,505 INFO L444 ceAbstractionStarter]: At program point startSystemENTRY(lines 908 915) the Hoare annotation is: (let ((.cse1 (not (= |old(~systemActive~0)| 1))) (.cse0 (= ~systemActive~0 1))) (and (or .cse0 (or (< ~waterLevel~0 2) .cse1)) (or (not (= 0 ~pumpRunning~0)) (< ~waterLevel~0 1) .cse1 .cse0))) [2018-11-22 21:30:55,505 INFO L448 ceAbstractionStarter]: For program point startSystemFINAL(lines 908 915) no Hoare annotation was computed. [2018-11-22 21:30:55,505 INFO L448 ceAbstractionStarter]: For program point L737(lines 737 745) no Hoare annotation was computed. [2018-11-22 21:30:55,505 INFO L444 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 729 753) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-11-22 21:30:55,505 INFO L444 ceAbstractionStarter]: At program point L735(line 735) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-11-22 21:30:55,505 INFO L448 ceAbstractionStarter]: For program point L735-1(line 735) no Hoare annotation was computed. [2018-11-22 21:30:55,505 INFO L448 ceAbstractionStarter]: For program point L733(lines 733 750) no Hoare annotation was computed. [2018-11-22 21:30:55,505 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 729 753) no Hoare annotation was computed. [2018-11-22 21:30:55,505 INFO L444 ceAbstractionStarter]: At program point L748(line 748) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-11-22 21:30:55,506 INFO L448 ceAbstractionStarter]: For program point L748-1(lines 729 753) no Hoare annotation was computed. [2018-11-22 21:30:55,506 INFO L444 ceAbstractionStarter]: At program point L743(line 743) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1)) (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~5) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-11-22 21:30:55,506 INFO L444 ceAbstractionStarter]: At program point L739(line 739) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-11-22 21:30:55,506 INFO L448 ceAbstractionStarter]: For program point waterRiseEXIT(lines 465 476) no Hoare annotation was computed. [2018-11-22 21:30:55,506 INFO L448 ceAbstractionStarter]: For program point L469-1(lines 465 476) no Hoare annotation was computed. [2018-11-22 21:30:55,506 INFO L444 ceAbstractionStarter]: At program point waterRiseENTRY(lines 465 476) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 (< |old(~waterLevel~0)| 2)) (or (< |old(~waterLevel~0)| 1) .cse0 (or (not (= 0 ~pumpRunning~0)) .cse1)))) [2018-11-22 21:30:55,506 INFO L448 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 435 442) no Hoare annotation was computed. [2018-11-22 21:30:55,506 INFO L448 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 439) no Hoare annotation was computed. [2018-11-22 21:30:55,506 INFO L451 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 435 442) the Hoare annotation is: true [2018-11-22 21:30:55,506 INFO L448 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 435 442) no Hoare annotation was computed. [2018-11-22 21:30:55,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 09:30:55 BoogieIcfgContainer [2018-11-22 21:30:55,517 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-22 21:30:55,517 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-22 21:30:55,517 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-22 21:30:55,518 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-22 21:30:55,518 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:30:38" (3/4) ... [2018-11-22 21:30:55,521 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-22 21:30:55,526 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-11-22 21:30:55,526 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-11-22 21:30:55,526 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification4_spec__1 [2018-11-22 21:30:55,526 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-22 21:30:55,526 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-11-22 21:30:55,526 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterLevel [2018-11-22 21:30:55,527 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-11-22 21:30:55,527 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-11-22 21:30:55,527 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2018-11-22 21:30:55,527 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-11-22 21:30:55,527 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-11-22 21:30:55,527 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-11-22 21:30:55,527 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-11-22 21:30:55,527 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-11-22 21:30:55,527 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump__wrappee__lowWaterSensor [2018-11-22 21:30:55,527 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterSensorDry [2018-11-22 21:30:55,527 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-22 21:30:55,527 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-11-22 21:30:55,527 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-11-22 21:30:55,528 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure getWaterLevel [2018-11-22 21:30:55,528 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-11-22 21:30:55,528 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-11-22 21:30:55,528 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-11-22 21:30:55,528 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2018-11-22 21:30:55,528 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-11-22 21:30:55,528 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-11-22 21:30:55,528 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure startSystem [2018-11-22 21:30:55,529 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2018-11-22 21:30:55,529 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-11-22 21:30:55,529 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-11-22 21:30:55,534 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 47 nodes and edges [2018-11-22 21:30:55,534 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2018-11-22 21:30:55,535 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-22 21:30:55,535 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-22 21:30:55,535 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-22 21:30:55,536 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-22 21:30:55,536 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-22 21:30:55,557 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((0 == pumpRunning && 1 <= waterLevel) && systemActive == 1) && splverifierCounter == 0) || !(0 == \old(pumpRunning))) || ((2 <= waterLevel && systemActive == 1) && splverifierCounter == 0)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-11-22 21:30:55,558 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-11-22 21:30:55,591 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_7bbe542c-6e55-4f88-afd6-d105d95a2962/bin-2019/utaipan/witness.graphml [2018-11-22 21:30:55,591 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-22 21:30:55,592 INFO L168 Benchmark]: Toolchain (without parser) took 18085.10 ms. Allocated memory was 1.0 GB in the beginning and 2.1 GB in the end (delta: 1.0 GB). Free memory was 956.5 MB in the beginning and 1.1 GB in the end (delta: -122.7 MB). Peak memory consumption was 900.7 MB. Max. memory is 11.5 GB. [2018-11-22 21:30:55,592 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 21:30:55,593 INFO L168 Benchmark]: CACSL2BoogieTranslator took 351.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 956.5 MB in the beginning and 1.1 GB in the end (delta: -170.5 MB). Peak memory consumption was 32.0 MB. Max. memory is 11.5 GB. [2018-11-22 21:30:55,593 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.54 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. [2018-11-22 21:30:55,593 INFO L168 Benchmark]: Boogie Preprocessor took 34.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-22 21:30:55,593 INFO L168 Benchmark]: RCFGBuilder took 473.53 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: 54.7 MB). Peak memory consumption was 54.7 MB. Max. memory is 11.5 GB. [2018-11-22 21:30:55,594 INFO L168 Benchmark]: TraceAbstraction took 17119.29 ms. Allocated memory was 1.2 GB in the beginning and 2.1 GB in the end (delta: 885.0 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -32.0 MB). Peak memory consumption was 853.0 MB. Max. memory is 11.5 GB. [2018-11-22 21:30:55,594 INFO L168 Benchmark]: Witness Printer took 73.92 ms. Allocated memory is still 2.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2018-11-22 21:30:55,595 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 351.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 956.5 MB in the beginning and 1.1 GB in the end (delta: -170.5 MB). Peak memory consumption was 32.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.54 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 473.53 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: 54.7 MB). Peak memory consumption was 54.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 17119.29 ms. Allocated memory was 1.2 GB in the beginning and 2.1 GB in the end (delta: 885.0 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -32.0 MB). Peak memory consumption was 853.0 MB. Max. memory is 11.5 GB. * Witness Printer took 73.92 ms. Allocated memory is still 2.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 439]: 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: 926]: Loop Invariant Derived loop invariant: ((!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 927]: Loop Invariant Derived loop invariant: (((((((0 == pumpRunning && 1 <= waterLevel) && systemActive == 1) && splverifierCounter == 0) || !(0 == \old(pumpRunning))) || ((2 <= waterLevel && systemActive == 1) && splverifierCounter == 0)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 566]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 556]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 31 procedures, 160 locations, 1 error locations. SAFE Result, 17.0s OverallTime, 13 OverallIterations, 3 TraceHistogramMax, 5.6s AutomataDifference, 0.0s DeadEndRemovalTime, 1.8s HoareAnnotationTime, HoareTripleCheckerStatistics: 2425 SDtfs, 1914 SDslu, 7689 SDs, 0 SdLazy, 3836 SolverSat, 685 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.8s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 1610 GetRequests, 1456 SyntacticMatches, 25 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 402 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1490occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 5.1s AbstIntTime, 5 AbstIntIterations, 1 AbstIntStrong, 0.9980710304440986 AbsIntWeakeningRatio, 0.8758169934640523 AbsIntAvgWeakeningVarsNumRemoved, 56.01960784313726 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 13 MinimizatonAttempts, 328 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 66 LocationsWithAnnotation, 2630 PreInvPairs, 2736 NumberOfFragments, 1158 HoareAnnotationTreeSize, 2630 FomulaSimplifications, 5357 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 66 FomulaSimplificationsInter, 11165 FormulaSimplificationTreeSizeReductionInter, 1.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 2136 NumberOfCodeBlocks, 2136 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 2773 ConstructedInterpolants, 0 QuantifiedInterpolants, 547187 SizeOfPredicates, 17 NumberOfNonLiveVariables, 3615 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 21 InterpolantComputations, 11 PerfectInterpolantSequences, 617/671 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...