./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product51_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_fd6fc48e-dae2-45e7-b344-91776f6eea74/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fd6fc48e-dae2-45e7-b344-91776f6eea74/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fd6fc48e-dae2-45e7-b344-91776f6eea74/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fd6fc48e-dae2-45e7-b344-91776f6eea74/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product51_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_fd6fc48e-dae2-45e7-b344-91776f6eea74/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fd6fc48e-dae2-45e7-b344-91776f6eea74/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 82fb1dfaeb04705f6833d1531288fda63f898d4b ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-01 22:36:51,113 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-01 22:36:51,114 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-01 22:36:51,120 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-01 22:36:51,120 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-01 22:36:51,121 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-01 22:36:51,121 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-01 22:36:51,122 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-01 22:36:51,123 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-01 22:36:51,124 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-01 22:36:51,124 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-01 22:36:51,124 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-01 22:36:51,125 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-01 22:36:51,125 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-01 22:36:51,126 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-01 22:36:51,126 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-01 22:36:51,126 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-01 22:36:51,127 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-01 22:36:51,128 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-01 22:36:51,129 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-01 22:36:51,130 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-01 22:36:51,130 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-01 22:36:51,131 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-01 22:36:51,132 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-01 22:36:51,132 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-01 22:36:51,132 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-01 22:36:51,133 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-01 22:36:51,133 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-01 22:36:51,134 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-01 22:36:51,134 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-01 22:36:51,134 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-01 22:36:51,135 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-01 22:36:51,135 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-01 22:36:51,135 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-01 22:36:51,135 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-01 22:36:51,136 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-01 22:36:51,136 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fd6fc48e-dae2-45e7-b344-91776f6eea74/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-01 22:36:51,143 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-01 22:36:51,143 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-01 22:36:51,144 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-01 22:36:51,144 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-01 22:36:51,144 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-01 22:36:51,144 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-01 22:36:51,144 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-01 22:36:51,144 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-01 22:36:51,144 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-01 22:36:51,144 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-01 22:36:51,145 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-01 22:36:51,145 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-01 22:36:51,145 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-01 22:36:51,145 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-01 22:36:51,145 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-01 22:36:51,145 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-01 22:36:51,145 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-01 22:36:51,146 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-01 22:36:51,146 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-01 22:36:51,146 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-01 22:36:51,146 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-01 22:36:51,146 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-01 22:36:51,146 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-01 22:36:51,146 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-01 22:36:51,146 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-01 22:36:51,146 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-01 22:36:51,146 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-01 22:36:51,146 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-01 22:36:51,146 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-01 22:36:51,147 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-01 22:36:51,147 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-01 22:36:51,147 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-01 22:36:51,147 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-01 22:36:51,147 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-01 22:36:51,147 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-01 22:36:51,147 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-01 22:36:51,147 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_fd6fc48e-dae2-45e7-b344-91776f6eea74/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 -> 82fb1dfaeb04705f6833d1531288fda63f898d4b [2018-12-01 22:36:51,165 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-01 22:36:51,171 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-01 22:36:51,173 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-01 22:36:51,174 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-01 22:36:51,175 INFO L276 PluginConnector]: CDTParser initialized [2018-12-01 22:36:51,175 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fd6fc48e-dae2-45e7-b344-91776f6eea74/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product51_true-unreach-call_false-termination.cil.c [2018-12-01 22:36:51,208 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fd6fc48e-dae2-45e7-b344-91776f6eea74/bin-2019/utaipan/data/ea97c3c9f/59c7e54a6bdc466b8b294793ee5714ae/FLAGbeb14d3ef [2018-12-01 22:36:51,593 INFO L307 CDTParser]: Found 1 translation units. [2018-12-01 22:36:51,594 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fd6fc48e-dae2-45e7-b344-91776f6eea74/sv-benchmarks/c/product-lines/minepump_spec4_product51_true-unreach-call_false-termination.cil.c [2018-12-01 22:36:51,600 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fd6fc48e-dae2-45e7-b344-91776f6eea74/bin-2019/utaipan/data/ea97c3c9f/59c7e54a6bdc466b8b294793ee5714ae/FLAGbeb14d3ef [2018-12-01 22:36:51,941 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fd6fc48e-dae2-45e7-b344-91776f6eea74/bin-2019/utaipan/data/ea97c3c9f/59c7e54a6bdc466b8b294793ee5714ae [2018-12-01 22:36:51,943 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-01 22:36:51,944 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-01 22:36:51,945 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-01 22:36:51,945 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-01 22:36:51,947 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-01 22:36:51,947 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 10:36:51" (1/1) ... [2018-12-01 22:36:51,949 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30baa60b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:36:51, skipping insertion in model container [2018-12-01 22:36:51,949 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 10:36:51" (1/1) ... [2018-12-01 22:36:51,955 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-01 22:36:51,978 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-01 22:36:52,161 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 22:36:52,170 INFO L191 MainTranslator]: Completed pre-run [2018-12-01 22:36:52,247 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 22:36:52,263 INFO L195 MainTranslator]: Completed translation [2018-12-01 22:36:52,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:36:52 WrapperNode [2018-12-01 22:36:52,263 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-01 22:36:52,264 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-01 22:36:52,264 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-01 22:36:52,264 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-01 22:36:52,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:36:52" (1/1) ... [2018-12-01 22:36:52,279 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:36:52" (1/1) ... [2018-12-01 22:36:52,285 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-01 22:36:52,285 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-01 22:36:52,285 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-01 22:36:52,285 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-01 22:36:52,291 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:36:52" (1/1) ... [2018-12-01 22:36:52,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:36:52" (1/1) ... [2018-12-01 22:36:52,293 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:36:52" (1/1) ... [2018-12-01 22:36:52,293 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:36:52" (1/1) ... [2018-12-01 22:36:52,299 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:36:52" (1/1) ... [2018-12-01 22:36:52,303 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:36:52" (1/1) ... [2018-12-01 22:36:52,305 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:36:52" (1/1) ... [2018-12-01 22:36:52,307 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-01 22:36:52,307 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-01 22:36:52,307 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-01 22:36:52,307 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-01 22:36:52,308 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:36:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fd6fc48e-dae2-45e7-b344-91776f6eea74/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 [2018-12-01 22:36:52,339 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-01 22:36:52,339 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-01 22:36:52,339 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2018-12-01 22:36:52,339 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2018-12-01 22:36:52,339 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-01 22:36:52,339 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-01 22:36:52,339 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2018-12-01 22:36:52,340 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2018-12-01 22:36:52,340 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-12-01 22:36:52,340 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-12-01 22:36:52,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-01 22:36:52,340 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-01 22:36:52,340 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-01 22:36:52,340 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-01 22:36:52,340 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-01 22:36:52,340 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-01 22:36:52,340 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-01 22:36:52,340 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-01 22:36:52,341 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-01 22:36:52,341 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-01 22:36:52,341 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-01 22:36:52,341 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-12-01 22:36:52,341 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-12-01 22:36:52,341 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-01 22:36:52,341 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-01 22:36:52,341 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-01 22:36:52,341 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-01 22:36:52,342 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-12-01 22:36:52,342 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-12-01 22:36:52,342 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-01 22:36:52,342 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-01 22:36:52,342 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-01 22:36:52,342 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-01 22:36:52,342 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-01 22:36:52,342 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-01 22:36:52,342 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-12-01 22:36:52,343 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-12-01 22:36:52,343 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-01 22:36:52,343 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-01 22:36:52,343 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-01 22:36:52,343 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-01 22:36:52,343 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-01 22:36:52,343 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-01 22:36:52,343 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-01 22:36:52,344 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-01 22:36:52,344 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-01 22:36:52,344 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-01 22:36:52,344 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-01 22:36:52,344 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-01 22:36:52,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-01 22:36:52,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-01 22:36:52,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-01 22:36:52,344 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-01 22:36:52,345 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-01 22:36:52,345 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-01 22:36:52,345 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-01 22:36:52,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-01 22:36:52,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-01 22:36:52,646 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-01 22:36:52,646 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-01 22:36:52,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 10:36:52 BoogieIcfgContainer [2018-12-01 22:36:52,646 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-01 22:36:52,647 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-01 22:36:52,647 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-01 22:36:52,650 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-01 22:36:52,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 10:36:51" (1/3) ... [2018-12-01 22:36:52,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13be2e76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 10:36:52, skipping insertion in model container [2018-12-01 22:36:52,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:36:52" (2/3) ... [2018-12-01 22:36:52,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13be2e76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 10:36:52, skipping insertion in model container [2018-12-01 22:36:52,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 10:36:52" (3/3) ... [2018-12-01 22:36:52,652 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product51_true-unreach-call_false-termination.cil.c [2018-12-01 22:36:52,661 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-01 22:36:52,667 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-01 22:36:52,681 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-01 22:36:52,704 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-01 22:36:52,704 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-01 22:36:52,704 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-01 22:36:52,704 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-01 22:36:52,704 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-01 22:36:52,704 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-01 22:36:52,704 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-01 22:36:52,705 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-01 22:36:52,721 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states. [2018-12-01 22:36:52,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-01 22:36:52,728 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:36:52,729 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] [2018-12-01 22:36:52,730 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 22:36:52,734 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:36:52,734 INFO L82 PathProgramCache]: Analyzing trace with hash -1477324891, now seen corresponding path program 1 times [2018-12-01 22:36:52,735 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-01 22:36:52,763 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:36:52,763 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:36:52,763 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:36:52,763 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-01 22:36:52,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:36:52,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:36:52,903 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 22:36:52,904 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-01 22:36:52,904 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-01 22:36:52,907 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-01 22:36:52,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-01 22:36:52,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-01 22:36:52,916 INFO L87 Difference]: Start difference. First operand 147 states. Second operand 2 states. [2018-12-01 22:36:52,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 22:36:52,939 INFO L93 Difference]: Finished difference Result 268 states and 333 transitions. [2018-12-01 22:36:52,939 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-01 22:36:52,940 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-01 22:36:52,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 22:36:52,946 INFO L225 Difference]: With dead ends: 268 [2018-12-01 22:36:52,947 INFO L226 Difference]: Without dead ends: 134 [2018-12-01 22:36:52,949 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 [2018-12-01 22:36:52,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2018-12-01 22:36:52,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2018-12-01 22:36:52,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2018-12-01 22:36:52,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 158 transitions. [2018-12-01 22:36:52,979 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 158 transitions. Word has length 46 [2018-12-01 22:36:52,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 22:36:52,979 INFO L480 AbstractCegarLoop]: Abstraction has 134 states and 158 transitions. [2018-12-01 22:36:52,979 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-01 22:36:52,979 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 158 transitions. [2018-12-01 22:36:52,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-01 22:36:52,981 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:36:52,981 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] [2018-12-01 22:36:52,981 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 22:36:52,981 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:36:52,981 INFO L82 PathProgramCache]: Analyzing trace with hash 1184699002, now seen corresponding path program 1 times [2018-12-01 22:36:52,981 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-01 22:36:52,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:36:52,982 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:36:52,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:36:52,982 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-01 22:36:53,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:36:53,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:36:53,051 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 22:36:53,051 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-01 22:36:53,051 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-01 22:36:53,053 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-01 22:36:53,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 22:36:53,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 22:36:53,053 INFO L87 Difference]: Start difference. First operand 134 states and 158 transitions. Second operand 3 states. [2018-12-01 22:36:53,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 22:36:53,071 INFO L93 Difference]: Finished difference Result 211 states and 247 transitions. [2018-12-01 22:36:53,071 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 22:36:53,071 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-01 22:36:53,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 22:36:53,072 INFO L225 Difference]: With dead ends: 211 [2018-12-01 22:36:53,073 INFO L226 Difference]: Without dead ends: 125 [2018-12-01 22:36:53,074 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 [2018-12-01 22:36:53,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2018-12-01 22:36:53,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2018-12-01 22:36:53,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2018-12-01 22:36:53,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 146 transitions. [2018-12-01 22:36:53,084 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 146 transitions. Word has length 47 [2018-12-01 22:36:53,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 22:36:53,084 INFO L480 AbstractCegarLoop]: Abstraction has 125 states and 146 transitions. [2018-12-01 22:36:53,084 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-01 22:36:53,084 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 146 transitions. [2018-12-01 22:36:53,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-12-01 22:36:53,085 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:36:53,085 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 22:36:53,086 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 22:36:53,086 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:36:53,086 INFO L82 PathProgramCache]: Analyzing trace with hash -161920199, now seen corresponding path program 1 times [2018-12-01 22:36:53,086 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-01 22:36:53,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:36:53,087 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:36:53,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:36:53,087 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-01 22:36:53,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:36:53,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:36:53,153 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 22:36:53,153 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-01 22:36:53,153 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-01 22:36:53,153 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-01 22:36:53,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-01 22:36:53,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-01 22:36:53,154 INFO L87 Difference]: Start difference. First operand 125 states and 146 transitions. Second operand 7 states. [2018-12-01 22:36:53,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 22:36:53,409 INFO L93 Difference]: Finished difference Result 377 states and 456 transitions. [2018-12-01 22:36:53,410 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-01 22:36:53,410 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2018-12-01 22:36:53,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 22:36:53,412 INFO L225 Difference]: With dead ends: 377 [2018-12-01 22:36:53,412 INFO L226 Difference]: Without dead ends: 276 [2018-12-01 22:36:53,413 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 [2018-12-01 22:36:53,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2018-12-01 22:36:53,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 268. [2018-12-01 22:36:53,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2018-12-01 22:36:53,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 324 transitions. [2018-12-01 22:36:53,433 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 324 transitions. Word has length 51 [2018-12-01 22:36:53,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 22:36:53,434 INFO L480 AbstractCegarLoop]: Abstraction has 268 states and 324 transitions. [2018-12-01 22:36:53,434 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-01 22:36:53,434 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 324 transitions. [2018-12-01 22:36:53,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-12-01 22:36:53,435 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:36:53,435 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 22:36:53,435 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 22:36:53,436 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:36:53,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1092518988, now seen corresponding path program 1 times [2018-12-01 22:36:53,436 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-01 22:36:53,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:36:53,436 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:36:53,437 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:36:53,437 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-01 22:36:53,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:36:53,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:36:53,513 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 22:36:53,513 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-01 22:36:53,513 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-01 22:36:53,513 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-01 22:36:53,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-01 22:36:53,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-12-01 22:36:53,514 INFO L87 Difference]: Start difference. First operand 268 states and 324 transitions. Second operand 10 states. [2018-12-01 22:36:53,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 22:36:53,832 INFO L93 Difference]: Finished difference Result 952 states and 1244 transitions. [2018-12-01 22:36:53,832 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-01 22:36:53,832 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 57 [2018-12-01 22:36:53,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 22:36:53,837 INFO L225 Difference]: With dead ends: 952 [2018-12-01 22:36:53,837 INFO L226 Difference]: Without dead ends: 708 [2018-12-01 22:36:53,838 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 [2018-12-01 22:36:53,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2018-12-01 22:36:53,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 696. [2018-12-01 22:36:53,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 696 states. [2018-12-01 22:36:53,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 876 transitions. [2018-12-01 22:36:53,881 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 876 transitions. Word has length 57 [2018-12-01 22:36:53,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 22:36:53,881 INFO L480 AbstractCegarLoop]: Abstraction has 696 states and 876 transitions. [2018-12-01 22:36:53,881 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-01 22:36:53,881 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 876 transitions. [2018-12-01 22:36:53,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-12-01 22:36:53,884 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:36:53,884 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 22:36:53,884 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 22:36:53,884 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:36:53,884 INFO L82 PathProgramCache]: Analyzing trace with hash 1019337618, now seen corresponding path program 1 times [2018-12-01 22:36:53,885 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-01 22:36:53,885 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:36:53,885 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:36:53,885 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:36:53,885 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-01 22:36:53,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:36:53,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:36:53,952 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 22:36:53,952 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-01 22:36:53,953 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-01 22:36:53,953 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-01 22:36:53,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-01 22:36:53,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-01 22:36:53,954 INFO L87 Difference]: Start difference. First operand 696 states and 876 transitions. Second operand 4 states. [2018-12-01 22:36:54,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 22:36:54,164 INFO L93 Difference]: Finished difference Result 1746 states and 2403 transitions. [2018-12-01 22:36:54,164 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-01 22:36:54,164 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 61 [2018-12-01 22:36:54,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 22:36:54,168 INFO L225 Difference]: With dead ends: 1746 [2018-12-01 22:36:54,168 INFO L226 Difference]: Without dead ends: 1074 [2018-12-01 22:36:54,169 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-01 22:36:54,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1074 states. [2018-12-01 22:36:54,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1074 to 939. [2018-12-01 22:36:54,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 939 states. [2018-12-01 22:36:54,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1190 transitions. [2018-12-01 22:36:54,206 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1190 transitions. Word has length 61 [2018-12-01 22:36:54,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 22:36:54,206 INFO L480 AbstractCegarLoop]: Abstraction has 939 states and 1190 transitions. [2018-12-01 22:36:54,206 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-01 22:36:54,207 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1190 transitions. [2018-12-01 22:36:54,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-12-01 22:36:54,208 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:36:54,208 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 22:36:54,208 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 22:36:54,209 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:36:54,209 INFO L82 PathProgramCache]: Analyzing trace with hash 880447573, now seen corresponding path program 1 times [2018-12-01 22:36:54,209 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-01 22:36:54,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:36:54,210 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:36:54,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:36:54,210 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-01 22:36:54,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:36:54,268 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-12-01 22:36:54,268 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 22:36:54,268 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-01 22:36:54,269 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 89 with the following transitions: [2018-12-01 22:36:54,270 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [42], [44], [45], [46], [47], [59], [90], [99], [103], [107], [110], [115], [121], [123], [126], [128], [131], [144], [145], [159], [160], [173], [180], [183], [217], [242], [246], [247], [250], [251], [252], [253], [254], [256], [257], [258], [259], [260], [261], [262], [263], [264], [270], [280], [281], [284], [285], [286], [287], [296], [297], [302], [303], [304] [2018-12-01 22:36:54,292 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-01 22:36:54,292 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-01 22:36:54,668 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-01 22:36:54,669 INFO L272 AbstractInterpreter]: Visited 67 different actions 137 times. Merged at 13 different actions 19 times. Never widened. Performed 4709 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4709 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 2 fixpoints after 2 different actions. Largest state had 133 variables. [2018-12-01 22:36:54,679 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:36:54,680 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-01 22:36:54,680 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 22:36:54,680 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fd6fc48e-dae2-45e7-b344-91776f6eea74/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 [2018-12-01 22:36:54,687 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:36:54,687 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-01 22:36:54,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:36:54,766 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 22:36:54,835 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-01 22:36:54,835 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-01 22:36:54,979 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-01 22:36:55,004 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-01 22:36:55,005 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 8] total 15 [2018-12-01 22:36:55,005 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-01 22:36:55,006 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-01 22:36:55,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-01 22:36:55,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2018-12-01 22:36:55,006 INFO L87 Difference]: Start difference. First operand 939 states and 1190 transitions. Second operand 12 states. [2018-12-01 22:36:56,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 22:36:56,709 INFO L93 Difference]: Finished difference Result 2238 states and 3071 transitions. [2018-12-01 22:36:56,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2018-12-01 22:36:56,710 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 88 [2018-12-01 22:36:56,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 22:36:56,715 INFO L225 Difference]: With dead ends: 2238 [2018-12-01 22:36:56,715 INFO L226 Difference]: Without dead ends: 1559 [2018-12-01 22:36:56,717 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 180 SyntacticMatches, 8 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 857 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=645, Invalid=2547, Unknown=0, NotChecked=0, Total=3192 [2018-12-01 22:36:56,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1559 states. [2018-12-01 22:36:56,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1559 to 1359. [2018-12-01 22:36:56,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1359 states. [2018-12-01 22:36:56,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1359 states to 1359 states and 1741 transitions. [2018-12-01 22:36:56,770 INFO L78 Accepts]: Start accepts. Automaton has 1359 states and 1741 transitions. Word has length 88 [2018-12-01 22:36:56,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 22:36:56,770 INFO L480 AbstractCegarLoop]: Abstraction has 1359 states and 1741 transitions. [2018-12-01 22:36:56,770 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-01 22:36:56,771 INFO L276 IsEmpty]: Start isEmpty. Operand 1359 states and 1741 transitions. [2018-12-01 22:36:56,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-12-01 22:36:56,773 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:36:56,774 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] [2018-12-01 22:36:56,774 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 22:36:56,774 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:36:56,774 INFO L82 PathProgramCache]: Analyzing trace with hash 415476035, now seen corresponding path program 1 times [2018-12-01 22:36:56,774 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-01 22:36:56,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:36:56,775 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:36:56,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:36:56,775 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-01 22:36:56,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:36:56,841 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-12-01 22:36:56,841 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 22:36:56,841 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-01 22:36:56,841 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 133 with the following transitions: [2018-12-01 22:36:56,842 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [57], [58], [59], [64], [67], [69], [75], [79], [82], [83], [86], [88], [89], [90], [99], [103], [107], [113], [115], [121], [123], [126], [142], [143], [144], [145], [146], [147], [148], [150], [153], [157], [158], [159], [160], [170], [173], [177], [183], [212], [216], [217], [221], [224], [226], [229], [236], [239], [247], [250], [251], [252], [253], [254], [256], [257], [258], [259], [260], [261], [262], [263], [264], [268], [269], [270], [272], [273], [276], [277], [278], [279], [286], [287], [290], [291], [292], [293], [294], [295], [296], [297], [302], [303], [304], [306], [307], [308], [309], [312], [313] [2018-12-01 22:36:56,844 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-01 22:36:56,844 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-01 22:36:56,953 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-01 22:36:56,954 INFO L272 AbstractInterpreter]: Visited 58 different actions 58 times. Never merged. Never widened. Performed 1948 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1948 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-12-01 22:36:56,955 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:36:56,955 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-01 22:36:57,086 INFO L227 lantSequenceWeakener]: Weakened 67 states. On average, predicates are now at 97.33% of their original sizes. [2018-12-01 22:36:57,087 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-01 22:36:57,139 INFO L418 sIntCurrentIteration]: We unified 131 AI predicates to 131 [2018-12-01 22:36:57,139 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-01 22:36:57,140 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-01 22:36:57,140 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [6] total 17 [2018-12-01 22:36:57,140 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-01 22:36:57,140 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-12-01 22:36:57,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-12-01 22:36:57,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2018-12-01 22:36:57,141 INFO L87 Difference]: Start difference. First operand 1359 states and 1741 transitions. Second operand 13 states. [2018-12-01 22:36:58,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 22:36:58,725 INFO L93 Difference]: Finished difference Result 2820 states and 3624 transitions. [2018-12-01 22:36:58,725 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-01 22:36:58,725 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 132 [2018-12-01 22:36:58,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 22:36:58,729 INFO L225 Difference]: With dead ends: 2820 [2018-12-01 22:36:58,729 INFO L226 Difference]: Without dead ends: 1485 [2018-12-01 22:36:58,731 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 135 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2018-12-01 22:36:58,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1485 states. [2018-12-01 22:36:58,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1485 to 1461. [2018-12-01 22:36:58,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1461 states. [2018-12-01 22:36:58,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1461 states to 1461 states and 1863 transitions. [2018-12-01 22:36:58,776 INFO L78 Accepts]: Start accepts. Automaton has 1461 states and 1863 transitions. Word has length 132 [2018-12-01 22:36:58,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 22:36:58,776 INFO L480 AbstractCegarLoop]: Abstraction has 1461 states and 1863 transitions. [2018-12-01 22:36:58,777 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-12-01 22:36:58,777 INFO L276 IsEmpty]: Start isEmpty. Operand 1461 states and 1863 transitions. [2018-12-01 22:36:58,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-12-01 22:36:58,779 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:36:58,779 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] [2018-12-01 22:36:58,779 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 22:36:58,779 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:36:58,779 INFO L82 PathProgramCache]: Analyzing trace with hash 1740332229, now seen corresponding path program 1 times [2018-12-01 22:36:58,779 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-01 22:36:58,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:36:58,780 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:36:58,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:36:58,780 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-01 22:36:58,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:36:58,841 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-12-01 22:36:58,841 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 22:36:58,842 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-01 22:36:58,842 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 133 with the following transitions: [2018-12-01 22:36:58,842 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [57], [58], [59], [64], [67], [69], [75], [79], [82], [83], [86], [88], [89], [90], [99], [103], [107], [113], [115], [121], [123], [126], [142], [143], [144], [145], [146], [147], [148], [150], [155], [157], [158], [159], [160], [170], [173], [177], [183], [212], [216], [217], [221], [224], [226], [229], [236], [239], [247], [250], [251], [252], [253], [254], [256], [257], [258], [259], [260], [261], [262], [263], [264], [268], [269], [270], [272], [273], [276], [277], [278], [279], [286], [287], [290], [291], [292], [293], [294], [295], [296], [297], [302], [303], [304], [306], [307], [308], [309], [312], [313] [2018-12-01 22:36:58,845 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-01 22:36:58,845 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-01 22:36:59,301 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-01 22:36:59,302 INFO L272 AbstractInterpreter]: Visited 109 different actions 370 times. Merged at 16 different actions 35 times. Never widened. Performed 11092 root evaluator evaluations with a maximum evaluation depth of 5. Performed 11092 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 5 fixpoints after 2 different actions. Largest state had 132 variables. [2018-12-01 22:36:59,303 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:36:59,303 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-01 22:36:59,303 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 22:36:59,303 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fd6fc48e-dae2-45e7-b344-91776f6eea74/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 [2018-12-01 22:36:59,309 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:36:59,309 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-01 22:36:59,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:36:59,365 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 22:36:59,395 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-12-01 22:36:59,395 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-01 22:36:59,529 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-12-01 22:36:59,544 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-01 22:36:59,545 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 5] total 11 [2018-12-01 22:36:59,545 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-01 22:36:59,545 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-01 22:36:59,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-01 22:36:59,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-12-01 22:36:59,545 INFO L87 Difference]: Start difference. First operand 1461 states and 1863 transitions. Second operand 5 states. [2018-12-01 22:36:59,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 22:36:59,597 INFO L93 Difference]: Finished difference Result 2845 states and 3735 transitions. [2018-12-01 22:36:59,597 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-01 22:36:59,597 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 132 [2018-12-01 22:36:59,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 22:36:59,601 INFO L225 Difference]: With dead ends: 2845 [2018-12-01 22:36:59,601 INFO L226 Difference]: Without dead ends: 1408 [2018-12-01 22:36:59,603 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 261 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-12-01 22:36:59,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1408 states. [2018-12-01 22:36:59,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1408 to 1408. [2018-12-01 22:36:59,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1408 states. [2018-12-01 22:36:59,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1408 states to 1408 states and 1788 transitions. [2018-12-01 22:36:59,646 INFO L78 Accepts]: Start accepts. Automaton has 1408 states and 1788 transitions. Word has length 132 [2018-12-01 22:36:59,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 22:36:59,646 INFO L480 AbstractCegarLoop]: Abstraction has 1408 states and 1788 transitions. [2018-12-01 22:36:59,646 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-01 22:36:59,646 INFO L276 IsEmpty]: Start isEmpty. Operand 1408 states and 1788 transitions. [2018-12-01 22:36:59,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-12-01 22:36:59,648 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:36:59,648 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] [2018-12-01 22:36:59,648 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 22:36:59,648 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:36:59,648 INFO L82 PathProgramCache]: Analyzing trace with hash -1454170434, now seen corresponding path program 1 times [2018-12-01 22:36:59,648 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-01 22:36:59,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:36:59,649 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:36:59,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:36:59,649 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-01 22:36:59,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:36:59,683 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-12-01 22:36:59,684 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 22:36:59,684 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-01 22:36:59,684 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 137 with the following transitions: [2018-12-01 22:36:59,684 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [57], [58], [59], [64], [67], [69], [75], [79], [82], [83], [87], [88], [89], [90], [99], [103], [107], [110], [113], [115], [121], [123], [126], [142], [143], [144], [145], [146], [147], [148], [150], [153], [157], [158], [159], [160], [170], [173], [177], [183], [212], [216], [217], [221], [224], [226], [229], [236], [239], [242], [246], [247], [250], [251], [252], [253], [254], [256], [257], [258], [259], [260], [261], [262], [263], [264], [268], [269], [270], [272], [273], [276], [277], [278], [279], [280], [281], [286], [287], [290], [291], [292], [293], [294], [295], [296], [297], [302], [303], [304], [306], [307], [308], [309], [312], [313] [2018-12-01 22:36:59,686 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-01 22:36:59,686 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-01 22:36:59,824 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-01 22:36:59,824 INFO L272 AbstractInterpreter]: Visited 58 different actions 79 times. Merged at 5 different actions 5 times. Never widened. Performed 4619 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4619 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-12-01 22:36:59,830 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:36:59,830 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-01 22:36:59,963 INFO L227 lantSequenceWeakener]: Weakened 66 states. On average, predicates are now at 97.26% of their original sizes. [2018-12-01 22:36:59,963 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-01 22:37:00,033 INFO L418 sIntCurrentIteration]: We unified 135 AI predicates to 135 [2018-12-01 22:37:00,033 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-01 22:37:00,034 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-01 22:37:00,034 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [5] total 18 [2018-12-01 22:37:00,034 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-01 22:37:00,034 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-12-01 22:37:00,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-12-01 22:37:00,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2018-12-01 22:37:00,034 INFO L87 Difference]: Start difference. First operand 1408 states and 1788 transitions. Second operand 15 states. [2018-12-01 22:37:01,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 22:37:01,579 INFO L93 Difference]: Finished difference Result 2750 states and 3535 transitions. [2018-12-01 22:37:01,579 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-01 22:37:01,579 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 136 [2018-12-01 22:37:01,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 22:37:01,584 INFO L225 Difference]: With dead ends: 2750 [2018-12-01 22:37:01,584 INFO L226 Difference]: Without dead ends: 1657 [2018-12-01 22:37:01,587 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 139 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2018-12-01 22:37:01,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1657 states. [2018-12-01 22:37:01,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1657 to 1619. [2018-12-01 22:37:01,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1619 states. [2018-12-01 22:37:01,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1619 states to 1619 states and 2037 transitions. [2018-12-01 22:37:01,648 INFO L78 Accepts]: Start accepts. Automaton has 1619 states and 2037 transitions. Word has length 136 [2018-12-01 22:37:01,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 22:37:01,649 INFO L480 AbstractCegarLoop]: Abstraction has 1619 states and 2037 transitions. [2018-12-01 22:37:01,649 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-12-01 22:37:01,649 INFO L276 IsEmpty]: Start isEmpty. Operand 1619 states and 2037 transitions. [2018-12-01 22:37:01,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-12-01 22:37:01,651 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:37:01,651 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] [2018-12-01 22:37:01,652 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 22:37:01,652 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:37:01,652 INFO L82 PathProgramCache]: Analyzing trace with hash -129314240, now seen corresponding path program 1 times [2018-12-01 22:37:01,652 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-01 22:37:01,653 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:37:01,653 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:37:01,653 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:37:01,653 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-01 22:37:01,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:37:01,757 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-12-01 22:37:01,757 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 22:37:01,757 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-01 22:37:01,757 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 137 with the following transitions: [2018-12-01 22:37:01,757 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [57], [58], [59], [64], [67], [69], [75], [79], [82], [83], [87], [88], [89], [90], [99], [103], [107], [110], [113], [115], [121], [123], [126], [142], [143], [144], [145], [146], [147], [148], [150], [155], [157], [158], [159], [160], [170], [173], [177], [183], [212], [216], [217], [221], [224], [226], [229], [236], [239], [242], [246], [247], [250], [251], [252], [253], [254], [256], [257], [258], [259], [260], [261], [262], [263], [264], [268], [269], [270], [272], [273], [276], [277], [278], [279], [280], [281], [286], [287], [290], [291], [292], [293], [294], [295], [296], [297], [302], [303], [304], [306], [307], [308], [309], [312], [313] [2018-12-01 22:37:01,759 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-01 22:37:01,759 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-01 22:37:02,328 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-01 22:37:02,328 INFO L272 AbstractInterpreter]: Visited 114 different actions 516 times. Merged at 18 different actions 51 times. Never widened. Performed 16803 root evaluator evaluations with a maximum evaluation depth of 5. Performed 16803 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 9 fixpoints after 3 different actions. Largest state had 132 variables. [2018-12-01 22:37:02,330 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:37:02,330 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-01 22:37:02,331 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 22:37:02,331 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fd6fc48e-dae2-45e7-b344-91776f6eea74/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 [2018-12-01 22:37:02,343 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:37:02,344 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-01 22:37:02,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:37:02,409 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 22:37:02,459 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:37:02,459 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-01 22:37:02,591 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-12-01 22:37:02,606 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-01 22:37:02,606 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 17 [2018-12-01 22:37:02,606 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-01 22:37:02,606 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-12-01 22:37:02,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-12-01 22:37:02,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2018-12-01 22:37:02,607 INFO L87 Difference]: Start difference. First operand 1619 states and 2037 transitions. Second operand 14 states. [2018-12-01 22:37:03,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 22:37:03,363 INFO L93 Difference]: Finished difference Result 2924 states and 3949 transitions. [2018-12-01 22:37:03,363 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-12-01 22:37:03,363 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 136 [2018-12-01 22:37:03,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 22:37:03,367 INFO L225 Difference]: With dead ends: 2924 [2018-12-01 22:37:03,367 INFO L226 Difference]: Without dead ends: 1831 [2018-12-01 22:37:03,369 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 266 SyntacticMatches, 7 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=219, Invalid=651, Unknown=0, NotChecked=0, Total=870 [2018-12-01 22:37:03,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1831 states. [2018-12-01 22:37:03,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1831 to 1505. [2018-12-01 22:37:03,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1505 states. [2018-12-01 22:37:03,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1505 states to 1505 states and 1889 transitions. [2018-12-01 22:37:03,421 INFO L78 Accepts]: Start accepts. Automaton has 1505 states and 1889 transitions. Word has length 136 [2018-12-01 22:37:03,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 22:37:03,421 INFO L480 AbstractCegarLoop]: Abstraction has 1505 states and 1889 transitions. [2018-12-01 22:37:03,421 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-12-01 22:37:03,421 INFO L276 IsEmpty]: Start isEmpty. Operand 1505 states and 1889 transitions. [2018-12-01 22:37:03,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-12-01 22:37:03,423 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:37:03,423 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] [2018-12-01 22:37:03,423 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 22:37:03,423 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:37:03,423 INFO L82 PathProgramCache]: Analyzing trace with hash -1335201648, now seen corresponding path program 1 times [2018-12-01 22:37:03,424 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-01 22:37:03,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:37:03,424 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:37:03,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:37:03,424 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-01 22:37:03,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:37:03,455 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-12-01 22:37:03,455 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 22:37:03,455 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-01 22:37:03,455 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-01 22:37:03,456 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-01 22:37:03,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-01 22:37:03,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-01 22:37:03,456 INFO L87 Difference]: Start difference. First operand 1505 states and 1889 transitions. Second operand 4 states. [2018-12-01 22:37:03,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 22:37:03,538 INFO L93 Difference]: Finished difference Result 1729 states and 2166 transitions. [2018-12-01 22:37:03,539 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-01 22:37:03,539 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 138 [2018-12-01 22:37:03,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 22:37:03,540 INFO L225 Difference]: With dead ends: 1729 [2018-12-01 22:37:03,541 INFO L226 Difference]: Without dead ends: 600 [2018-12-01 22:37:03,543 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-01 22:37:03,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2018-12-01 22:37:03,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 600. [2018-12-01 22:37:03,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 600 states. [2018-12-01 22:37:03,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 737 transitions. [2018-12-01 22:37:03,564 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 737 transitions. Word has length 138 [2018-12-01 22:37:03,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 22:37:03,564 INFO L480 AbstractCegarLoop]: Abstraction has 600 states and 737 transitions. [2018-12-01 22:37:03,564 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-01 22:37:03,564 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 737 transitions. [2018-12-01 22:37:03,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2018-12-01 22:37:03,565 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:37:03,565 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, 2, 2, 2, 2, 2, 2, 2, 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] [2018-12-01 22:37:03,566 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 22:37:03,566 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:37:03,566 INFO L82 PathProgramCache]: Analyzing trace with hash 1772883422, now seen corresponding path program 2 times [2018-12-01 22:37:03,566 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-01 22:37:03,566 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:37:03,566 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:37:03,566 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:37:03,566 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-01 22:37:03,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:37:03,642 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 43 proven. 12 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2018-12-01 22:37:03,642 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 22:37:03,642 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-01 22:37:03,642 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-01 22:37:03,643 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-01 22:37:03,643 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 22:37:03,643 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fd6fc48e-dae2-45e7-b344-91776f6eea74/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 [2018-12-01 22:37:03,648 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-01 22:37:03,649 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-12-01 22:37:03,722 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2018-12-01 22:37:03,722 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-01 22:37:03,727 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 22:37:03,831 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-12-01 22:37:03,831 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-01 22:37:04,020 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 43 proven. 12 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2018-12-01 22:37:04,036 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-01 22:37:04,036 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [8, 8] total 15 [2018-12-01 22:37:04,036 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-01 22:37:04,036 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-01 22:37:04,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-01 22:37:04,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2018-12-01 22:37:04,037 INFO L87 Difference]: Start difference. First operand 600 states and 737 transitions. Second operand 9 states. [2018-12-01 22:37:04,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 22:37:04,648 INFO L93 Difference]: Finished difference Result 1436 states and 1882 transitions. [2018-12-01 22:37:04,648 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-12-01 22:37:04,648 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 189 [2018-12-01 22:37:04,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 22:37:04,651 INFO L225 Difference]: With dead ends: 1436 [2018-12-01 22:37:04,651 INFO L226 Difference]: Without dead ends: 1015 [2018-12-01 22:37:04,652 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 372 SyntacticMatches, 3 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=170, Invalid=532, Unknown=0, NotChecked=0, Total=702 [2018-12-01 22:37:04,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1015 states. [2018-12-01 22:37:04,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1015 to 994. [2018-12-01 22:37:04,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 994 states. [2018-12-01 22:37:04,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1217 transitions. [2018-12-01 22:37:04,709 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1217 transitions. Word has length 189 [2018-12-01 22:37:04,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 22:37:04,709 INFO L480 AbstractCegarLoop]: Abstraction has 994 states and 1217 transitions. [2018-12-01 22:37:04,710 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-01 22:37:04,710 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1217 transitions. [2018-12-01 22:37:04,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2018-12-01 22:37:04,712 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:37:04,712 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 22:37:04,712 INFO L423 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 22:37:04,712 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:37:04,712 INFO L82 PathProgramCache]: Analyzing trace with hash -645601056, now seen corresponding path program 1 times [2018-12-01 22:37:04,712 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-01 22:37:04,713 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:37:04,713 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 22:37:04,713 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:37:04,713 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-01 22:37:04,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:37:04,803 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 39 proven. 8 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2018-12-01 22:37:04,803 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 22:37:04,803 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-01 22:37:04,803 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 190 with the following transitions: [2018-12-01 22:37:04,803 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [55], [57], [58], [59], [64], [67], [69], [75], [79], [82], [83], [87], [88], [89], [90], [99], [103], [107], [110], [113], [115], [121], [123], [126], [142], [143], [144], [145], [146], [147], [148], [150], [155], [157], [158], [159], [160], [170], [173], [177], [183], [212], [216], [217], [221], [224], [226], [229], [236], [239], [242], [246], [247], [250], [251], [252], [253], [254], [256], [257], [258], [259], [260], [261], [262], [263], [264], [268], [269], [270], [272], [273], [276], [277], [278], [279], [280], [281], [286], [287], [290], [291], [292], [293], [294], [295], [296], [297], [302], [303], [304], [306], [307], [308], [309], [312], [313] [2018-12-01 22:37:04,804 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-01 22:37:04,804 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-01 22:37:05,323 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-01 22:37:05,323 INFO L272 AbstractInterpreter]: Visited 115 different actions 528 times. Merged at 21 different actions 60 times. Never widened. Performed 16839 root evaluator evaluations with a maximum evaluation depth of 5. Performed 16839 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 12 fixpoints after 4 different actions. Largest state had 132 variables. [2018-12-01 22:37:05,325 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:37:05,325 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-01 22:37:05,325 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 22:37:05,325 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fd6fc48e-dae2-45e7-b344-91776f6eea74/bin-2019/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-01 22:37:05,331 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:37:05,331 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-01 22:37:05,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:37:05,394 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 22:37:05,430 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2018-12-01 22:37:05,431 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-01 22:37:05,556 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 39 proven. 8 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2018-12-01 22:37:05,571 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-01 22:37:05,571 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [9, 6] total 13 [2018-12-01 22:37:05,571 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-01 22:37:05,572 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-01 22:37:05,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-01 22:37:05,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-12-01 22:37:05,572 INFO L87 Difference]: Start difference. First operand 994 states and 1217 transitions. Second operand 6 states. [2018-12-01 22:37:05,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 22:37:05,608 INFO L93 Difference]: Finished difference Result 1774 states and 2218 transitions. [2018-12-01 22:37:05,609 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-01 22:37:05,609 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 189 [2018-12-01 22:37:05,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 22:37:05,611 INFO L225 Difference]: With dead ends: 1774 [2018-12-01 22:37:05,611 INFO L226 Difference]: Without dead ends: 961 [2018-12-01 22:37:05,612 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 373 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2018-12-01 22:37:05,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states. [2018-12-01 22:37:05,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 961. [2018-12-01 22:37:05,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 961 states. [2018-12-01 22:37:05,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 961 states to 961 states and 1166 transitions. [2018-12-01 22:37:05,637 INFO L78 Accepts]: Start accepts. Automaton has 961 states and 1166 transitions. Word has length 189 [2018-12-01 22:37:05,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 22:37:05,638 INFO L480 AbstractCegarLoop]: Abstraction has 961 states and 1166 transitions. [2018-12-01 22:37:05,638 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-01 22:37:05,638 INFO L276 IsEmpty]: Start isEmpty. Operand 961 states and 1166 transitions. [2018-12-01 22:37:05,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2018-12-01 22:37:05,640 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:37:05,640 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 22:37:05,640 INFO L423 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 22:37:05,640 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:37:05,640 INFO L82 PathProgramCache]: Analyzing trace with hash 1007792563, now seen corresponding path program 1 times [2018-12-01 22:37:05,640 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-01 22:37:05,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:37:05,641 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:37:05,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:37:05,641 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-01 22:37:05,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:37:05,709 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 50 proven. 17 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2018-12-01 22:37:05,709 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 22:37:05,709 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-01 22:37:05,710 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 192 with the following transitions: [2018-12-01 22:37:05,710 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [57], [58], [59], [64], [67], [69], [75], [79], [82], [83], [86], [87], [88], [89], [90], [99], [103], [107], [110], [113], [115], [121], [123], [126], [142], [143], [144], [145], [146], [147], [148], [150], [153], [155], [157], [158], [159], [160], [170], [173], [177], [183], [212], [216], [217], [221], [224], [226], [229], [236], [239], [242], [246], [247], [250], [251], [252], [253], [254], [256], [257], [258], [259], [260], [261], [262], [263], [264], [268], [269], [270], [272], [273], [276], [277], [278], [279], [280], [281], [286], [287], [290], [291], [292], [293], [294], [295], [296], [297], [302], [303], [304], [306], [307], [308], [309], [312], [313] [2018-12-01 22:37:05,711 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-01 22:37:05,711 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-01 22:37:06,597 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-01 22:37:06,597 INFO L272 AbstractInterpreter]: Visited 116 different actions 853 times. Merged at 31 different actions 163 times. Widened at 1 different actions 1 times. Performed 27518 root evaluator evaluations with a maximum evaluation depth of 5. Performed 27518 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 24 fixpoints after 8 different actions. Largest state had 132 variables. [2018-12-01 22:37:06,599 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:37:06,599 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-01 22:37:06,599 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 22:37:06,599 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fd6fc48e-dae2-45e7-b344-91776f6eea74/bin-2019/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-01 22:37:06,606 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:37:06,606 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-01 22:37:06,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:37:06,666 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 22:37:06,714 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 75 proven. 18 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-12-01 22:37:06,714 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-01 22:37:06,887 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 50 proven. 17 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2018-12-01 22:37:06,902 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-01 22:37:06,902 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 13 [2018-12-01 22:37:06,903 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-01 22:37:06,903 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-01 22:37:06,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-01 22:37:06,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2018-12-01 22:37:06,903 INFO L87 Difference]: Start difference. First operand 961 states and 1166 transitions. Second operand 12 states. [2018-12-01 22:37:07,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 22:37:07,276 INFO L93 Difference]: Finished difference Result 2031 states and 2506 transitions. [2018-12-01 22:37:07,276 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-01 22:37:07,276 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 191 [2018-12-01 22:37:07,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 22:37:07,279 INFO L225 Difference]: With dead ends: 2031 [2018-12-01 22:37:07,279 INFO L226 Difference]: Without dead ends: 1142 [2018-12-01 22:37:07,280 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 382 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2018-12-01 22:37:07,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1142 states. [2018-12-01 22:37:07,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1142 to 1035. [2018-12-01 22:37:07,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1035 states. [2018-12-01 22:37:07,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 1173 transitions. [2018-12-01 22:37:07,323 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 1173 transitions. Word has length 191 [2018-12-01 22:37:07,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 22:37:07,323 INFO L480 AbstractCegarLoop]: Abstraction has 1035 states and 1173 transitions. [2018-12-01 22:37:07,323 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-01 22:37:07,323 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 1173 transitions. [2018-12-01 22:37:07,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2018-12-01 22:37:07,326 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:37:07,326 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 22:37:07,326 INFO L423 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 22:37:07,326 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:37:07,326 INFO L82 PathProgramCache]: Analyzing trace with hash 134531291, now seen corresponding path program 1 times [2018-12-01 22:37:07,327 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-01 22:37:07,327 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:37:07,327 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:37:07,327 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:37:07,327 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-01 22:37:07,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:37:07,381 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 69 proven. 4 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2018-12-01 22:37:07,381 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 22:37:07,381 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-01 22:37:07,381 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 237 with the following transitions: [2018-12-01 22:37:07,381 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [55], [57], [58], [59], [62], [63], [64], [67], [69], [72], [75], [79], [82], [83], [86], [87], [88], [89], [90], [99], [103], [107], [110], [113], [115], [121], [123], [126], [142], [143], [144], [145], [146], [147], [148], [150], [153], [155], [157], [158], [159], [160], [170], [173], [177], [183], [212], [216], [217], [221], [224], [226], [229], [236], [239], [242], [246], [247], [250], [251], [252], [253], [254], [256], [257], [258], [259], [260], [261], [262], [263], [264], [268], [269], [270], [272], [273], [274], [275], [276], [277], [278], [279], [280], [281], [286], [287], [290], [291], [292], [293], [294], [295], [296], [297], [302], [303], [304], [306], [307], [308], [309], [312], [313] [2018-12-01 22:37:07,383 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-01 22:37:07,383 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-01 22:37:08,403 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-01 22:37:08,404 INFO L272 AbstractInterpreter]: Visited 122 different actions 807 times. Merged at 35 different actions 160 times. Never widened. Performed 31705 root evaluator evaluations with a maximum evaluation depth of 5. Performed 31705 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 26 fixpoints after 7 different actions. Largest state had 132 variables. [2018-12-01 22:37:08,405 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:37:08,405 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-01 22:37:08,405 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 22:37:08,405 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fd6fc48e-dae2-45e7-b344-91776f6eea74/bin-2019/utaipan/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-01 22:37:08,411 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:37:08,411 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-01 22:37:08,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:37:08,476 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 22:37:08,496 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2018-12-01 22:37:08,496 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-01 22:37:08,644 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 69 proven. 4 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2018-12-01 22:37:08,658 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-01 22:37:08,659 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 6 [2018-12-01 22:37:08,659 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-01 22:37:08,659 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-01 22:37:08,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-01 22:37:08,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-01 22:37:08,659 INFO L87 Difference]: Start difference. First operand 1035 states and 1173 transitions. Second operand 6 states. [2018-12-01 22:37:08,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 22:37:08,684 INFO L93 Difference]: Finished difference Result 1362 states and 1552 transitions. [2018-12-01 22:37:08,684 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-01 22:37:08,684 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 236 [2018-12-01 22:37:08,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 22:37:08,685 INFO L225 Difference]: With dead ends: 1362 [2018-12-01 22:37:08,685 INFO L226 Difference]: Without dead ends: 0 [2018-12-01 22:37:08,686 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 478 GetRequests, 467 SyntacticMatches, 6 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-01 22:37:08,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-01 22:37:08,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-01 22:37:08,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-01 22:37:08,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-01 22:37:08,687 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 236 [2018-12-01 22:37:08,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 22:37:08,687 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-01 22:37:08,687 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-01 22:37:08,687 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-01 22:37:08,687 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-01 22:37:08,690 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-01 22:37:08,788 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 22:37:08,792 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 22:37:08,798 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 22:37:08,804 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 22:37:08,807 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 22:37:08,880 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 22:37:08,916 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 22:37:08,919 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 22:37:08,920 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 22:37:08,921 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 22:37:08,921 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 22:37:08,931 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 22:37:08,934 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 22:37:08,937 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 22:37:08,946 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 22:37:08,951 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 22:37:08,952 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 22:37:08,952 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 22:37:08,954 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 22:37:08,959 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 22:37:09,037 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 22:37:09,070 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 22:37:09,071 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 22:37:09,072 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 22:37:09,072 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 22:37:09,072 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 22:37:09,072 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 22:37:09,075 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 22:37:09,075 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 22:37:09,076 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 22:37:09,077 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 22:37:09,080 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 22:37:09,080 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 22:37:09,082 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 22:37:09,083 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 22:37:09,083 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 22:37:09,086 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 22:37:09,089 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 22:37:09,093 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 22:37:09,097 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 22:37:09,099 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 22:37:09,128 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 22:37:09,144 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 22:37:09,149 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 22:37:09,150 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-01 22:37:09,732 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 29 [2018-12-01 22:37:10,299 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 37 [2018-12-01 22:37:10,907 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 29 [2018-12-01 22:37:11,018 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 36 [2018-12-01 22:37:11,036 INFO L451 ceAbstractionStarter]: At program point select_helpersFINAL(lines 299 305) the Hoare annotation is: true [2018-12-01 22:37:11,036 INFO L448 ceAbstractionStarter]: For program point select_helpersEXIT(lines 299 305) no Hoare annotation was computed. [2018-12-01 22:37:11,036 INFO L448 ceAbstractionStarter]: For program point valid_productEXIT(lines 306 314) no Hoare annotation was computed. [2018-12-01 22:37:11,036 INFO L451 ceAbstractionStarter]: At program point valid_productENTRY(lines 306 314) the Hoare annotation is: true [2018-12-01 22:37:11,036 INFO L448 ceAbstractionStarter]: For program point valid_productFINAL(lines 306 314) no Hoare annotation was computed. [2018-12-01 22:37:11,036 INFO L444 ceAbstractionStarter]: At program point L161(line 161) the Hoare annotation is: (let ((.cse1 (not (= ~systemActive~0 1))) (.cse0 (not (= 0 ~pumpRunning~0)))) (and (or .cse0 (< ~waterLevel~0 1) .cse1) (or (< ~waterLevel~0 2) (not (= 1 ~pumpRunning~0)) .cse1) (or .cse0 (not (= ~systemActive~0 0))))) [2018-12-01 22:37:11,036 INFO L448 ceAbstractionStarter]: For program point L159(lines 159 165) no Hoare annotation was computed. [2018-12-01 22:37:11,036 INFO L451 ceAbstractionStarter]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 147 171) the Hoare annotation is: true [2018-12-01 22:37:11,036 INFO L444 ceAbstractionStarter]: At program point L157(line 157) the Hoare annotation is: (let ((.cse1 (not (= ~systemActive~0 1))) (.cse2 (not (= ~systemActive~0 0))) (.cse0 (not (= 0 ~pumpRunning~0))) (.cse3 (< ~waterLevel~0 2))) (and (or .cse0 (< ~waterLevel~0 1) .cse1) (or .cse2 (or .cse0 (not (= ~waterLevel~0 1)))) (or .cse3 (not (= 1 ~pumpRunning~0)) .cse1) (or .cse2 (or .cse0 .cse3)))) [2018-12-01 22:37:11,036 INFO L448 ceAbstractionStarter]: For program point L157-1(line 157) no Hoare annotation was computed. [2018-12-01 22:37:11,036 INFO L448 ceAbstractionStarter]: For program point L155(lines 155 168) no Hoare annotation was computed. [2018-12-01 22:37:11,036 INFO L448 ceAbstractionStarter]: For program point L155-1(lines 147 171) no Hoare annotation was computed. [2018-12-01 22:37:11,037 INFO L451 ceAbstractionStarter]: At program point L153(line 153) the Hoare annotation is: true [2018-12-01 22:37:11,037 INFO L448 ceAbstractionStarter]: For program point L153-1(line 153) no Hoare annotation was computed. [2018-12-01 22:37:11,037 INFO L448 ceAbstractionStarter]: For program point __utac_acc__Specification4_spec__1EXIT(lines 147 171) no Hoare annotation was computed. [2018-12-01 22:37:11,037 INFO L448 ceAbstractionStarter]: For program point L130-1(lines 130 137) no Hoare annotation was computed. [2018-12-01 22:37:11,037 INFO L448 ceAbstractionStarter]: For program point L128(line 128) no Hoare annotation was computed. [2018-12-01 22:37:11,037 INFO L444 ceAbstractionStarter]: At program point L127(line 127) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-12-01 22:37:11,037 INFO L444 ceAbstractionStarter]: At program point L126(line 126) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-12-01 22:37:11,037 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 120 142) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-12-01 22:37:11,037 INFO L444 ceAbstractionStarter]: At program point L126-1(line 126) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-12-01 22:37:11,037 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 120 142) no Hoare annotation was computed. [2018-12-01 22:37:11,037 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 120 142) no Hoare annotation was computed. [2018-12-01 22:37:11,037 INFO L444 ceAbstractionStarter]: At program point L132(line 132) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (and (= ~systemActive~0 1) (= main_~tmp~0 1) (= main_~tmp~0 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-12-01 22:37:11,037 INFO L444 ceAbstractionStarter]: At program point L132-1(line 132) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (and (= ~systemActive~0 1) (= main_~tmp~0 1) (= main_~tmp~0 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-12-01 22:37:11,037 INFO L448 ceAbstractionStarter]: For program point L130(lines 130 137) no Hoare annotation was computed. [2018-12-01 22:37:11,037 INFO L448 ceAbstractionStarter]: For program point stopSystemEXIT(lines 515 529) no Hoare annotation was computed. [2018-12-01 22:37:11,037 INFO L444 ceAbstractionStarter]: At program point L521(line 521) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (not (= 0 |old(~pumpRunning~0)|)) (or (and (= ~systemActive~0 1) .cse0) (not (= |old(~systemActive~0)| 1))) (or (or (= |old(~systemActive~0)| 0) (< ~waterLevel~0 2)) (and (not (= ~systemActive~0 0)) .cse0)))) [2018-12-01 22:37:11,037 INFO L448 ceAbstractionStarter]: For program point L519(lines 519 525) no Hoare annotation was computed. [2018-12-01 22:37:11,038 INFO L444 ceAbstractionStarter]: At program point stopSystemENTRY(lines 515 529) the Hoare annotation is: (let ((.cse3 (= ~systemActive~0 0)) (.cse4 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (= |old(~systemActive~0)| 0)) (.cse2 (and (not .cse3) .cse4))) (and (or .cse0 .cse1 .cse2) (or (not .cse0) .cse1 (and .cse3 .cse4)) (or (and (= ~systemActive~0 1) .cse4) (not (= |old(~systemActive~0)| 1))) (or (or .cse0 (< ~waterLevel~0 2)) .cse2)))) [2018-12-01 22:37:11,038 INFO L448 ceAbstractionStarter]: For program point stopSystemFINAL(lines 515 529) no Hoare annotation was computed. [2018-12-01 22:37:11,038 INFO L448 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 432 440) no Hoare annotation was computed. [2018-12-01 22:37:11,038 INFO L451 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 432 440) the Hoare annotation is: true [2018-12-01 22:37:11,038 INFO L448 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 432 440) no Hoare annotation was computed. [2018-12-01 22:37:11,038 INFO L451 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 496 514) the Hoare annotation is: true [2018-12-01 22:37:11,038 INFO L448 ceAbstractionStarter]: For program point L505(lines 505 509) no Hoare annotation was computed. [2018-12-01 22:37:11,038 INFO L451 ceAbstractionStarter]: At program point L503(line 503) the Hoare annotation is: true [2018-12-01 22:37:11,038 INFO L448 ceAbstractionStarter]: For program point L505-2(lines 505 509) no Hoare annotation was computed. [2018-12-01 22:37:11,038 INFO L448 ceAbstractionStarter]: For program point L503-1(line 503) no Hoare annotation was computed. [2018-12-01 22:37:11,038 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 496 514) no Hoare annotation was computed. [2018-12-01 22:37:11,038 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 496 514) no Hoare annotation was computed. [2018-12-01 22:37:11,038 INFO L448 ceAbstractionStarter]: For program point select_featuresEXIT(lines 292 298) no Hoare annotation was computed. [2018-12-01 22:37:11,038 INFO L451 ceAbstractionStarter]: At program point select_featuresFINAL(lines 292 298) the Hoare annotation is: true [2018-12-01 22:37:11,038 INFO L444 ceAbstractionStarter]: At program point runTestENTRY(lines 107 116) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-12-01 22:37:11,038 INFO L448 ceAbstractionStarter]: For program point runTestEXIT(lines 107 116) no Hoare annotation was computed. [2018-12-01 22:37:11,038 INFO L448 ceAbstractionStarter]: For program point runTestFINAL(lines 107 116) no Hoare annotation was computed. [2018-12-01 22:37:11,038 INFO L444 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 413 420) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (or (= ~systemActive~0 0) (< ~waterLevel~0 2)) .cse0) (or .cse0 (not (= ~systemActive~0 1))))) [2018-12-01 22:37:11,039 INFO L448 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 413 420) no Hoare annotation was computed. [2018-12-01 22:37:11,039 INFO L448 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 413 420) no Hoare annotation was computed. [2018-12-01 22:37:11,039 INFO L448 ceAbstractionStarter]: For program point L386-1(line 386) no Hoare annotation was computed. [2018-12-01 22:37:11,039 INFO L448 ceAbstractionStarter]: For program point L384(lines 384 401) no Hoare annotation was computed. [2018-12-01 22:37:11,039 INFO L448 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 380 404) no Hoare annotation was computed. [2018-12-01 22:37:11,039 INFO L444 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 380 404) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 (not (= 1 |old(~pumpRunning~0)|)) .cse1 .cse2) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1 .cse2))) [2018-12-01 22:37:11,039 INFO L444 ceAbstractionStarter]: At program point L399(line 399) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (not (= 1 |old(~pumpRunning~0)|)) .cse1) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)))) [2018-12-01 22:37:11,039 INFO L448 ceAbstractionStarter]: For program point L399-1(lines 380 404) no Hoare annotation was computed. [2018-12-01 22:37:11,039 INFO L444 ceAbstractionStarter]: At program point L394(line 394) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (not (= 1 |old(~pumpRunning~0)|)) .cse1) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1))) [2018-12-01 22:37:11,039 INFO L444 ceAbstractionStarter]: At program point L390(line 390) 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 (not (= 1 |old(~pumpRunning~0)|)) .cse1 (and (<= 1 processEnvironment_~tmp~3) (= |old(~pumpRunning~0)| ~pumpRunning~0))))) [2018-12-01 22:37:11,039 INFO L448 ceAbstractionStarter]: For program point L388(lines 388 396) no Hoare annotation was computed. [2018-12-01 22:37:11,039 INFO L444 ceAbstractionStarter]: At program point L386(line 386) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (not (= 1 |old(~pumpRunning~0)|)) .cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1))) [2018-12-01 22:37:11,039 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 257 270) no Hoare annotation was computed. [2018-12-01 22:37:11,039 INFO L448 ceAbstractionStarter]: For program point L261(lines 261 267) no Hoare annotation was computed. [2018-12-01 22:37:11,039 INFO L451 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 257 270) the Hoare annotation is: true [2018-12-01 22:37:11,039 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 257 270) no Hoare annotation was computed. [2018-12-01 22:37:11,039 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 346 352) no Hoare annotation was computed. [2018-12-01 22:37:11,040 INFO L451 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 346 352) the Hoare annotation is: true [2018-12-01 22:37:11,040 INFO L444 ceAbstractionStarter]: At program point testENTRY(lines 531 596) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-12-01 22:37:11,040 INFO L448 ceAbstractionStarter]: For program point L543(lines 543 547) no Hoare annotation was computed. [2018-12-01 22:37:11,040 INFO L448 ceAbstractionStarter]: For program point testFINAL(lines 531 596) no Hoare annotation was computed. [2018-12-01 22:37:11,040 INFO L444 ceAbstractionStarter]: At program point L589(lines 540 590) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-12-01 22:37:11,040 INFO L444 ceAbstractionStarter]: At program point L579(line 579) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (and (and .cse0 (<= 2 ~waterLevel~0)) (not (= ~systemActive~0 0))) (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~pumpRunning~0) .cse0) (and (= ~systemActive~0 1) .cse0) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)))) [2018-12-01 22:37:11,040 INFO L448 ceAbstractionStarter]: For program point L577(lines 577 583) no Hoare annotation was computed. [2018-12-01 22:37:11,040 INFO L444 ceAbstractionStarter]: At program point L577-1(lines 571 584) the Hoare annotation is: (let ((.cse2 (= 0 ~pumpRunning~0)) (.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= |old(~systemActive~0)| 1)) (and (<= 2 ~waterLevel~0) (= ~pumpRunning~0 1) .cse0 .cse1) (and (= ~systemActive~0 0) .cse2 .cse1) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~waterLevel~0)| 1)) (and .cse2 (<= 1 ~waterLevel~0) .cse0 .cse1))) [2018-12-01 22:37:11,040 INFO L448 ceAbstractionStarter]: For program point L542(lines 541 588) no Hoare annotation was computed. [2018-12-01 22:37:11,040 INFO L448 ceAbstractionStarter]: For program point L571(lines 571 584) no Hoare annotation was computed. [2018-12-01 22:37:11,040 INFO L444 ceAbstractionStarter]: At program point L563(line 563) the Hoare annotation is: (let ((.cse2 (= 0 ~pumpRunning~0)) (.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= |old(~systemActive~0)| 1)) (and (<= 2 ~waterLevel~0) (= ~pumpRunning~0 1) .cse0 .cse1) (and (= ~systemActive~0 0) .cse2 .cse1) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~waterLevel~0)| 1)) (and .cse2 (<= 1 ~waterLevel~0) .cse0 .cse1))) [2018-12-01 22:37:11,040 INFO L448 ceAbstractionStarter]: For program point L561(lines 561 567) no Hoare annotation was computed. [2018-12-01 22:37:11,040 INFO L448 ceAbstractionStarter]: For program point L561-1(lines 561 567) no Hoare annotation was computed. [2018-12-01 22:37:11,040 INFO L444 ceAbstractionStarter]: At program point L586(lines 541 588) the Hoare annotation is: (let ((.cse0 (= 0 ~pumpRunning~0)) (.cse2 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= |old(~systemActive~0)| 1)) (and (= ~systemActive~0 0) .cse0 .cse1) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) (= ~pumpRunning~0 1) .cse2 .cse1) (not (= |old(~waterLevel~0)| 1)) (and .cse0 (<= 1 ~waterLevel~0) .cse2 .cse1))) [2018-12-01 22:37:11,040 INFO L444 ceAbstractionStarter]: At program point L553(line 553) the Hoare annotation is: (let ((.cse2 (= 0 ~pumpRunning~0)) (.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (and (<= 2 ~waterLevel~0) (= ~pumpRunning~0 1) .cse0 .cse1) (not (= |old(~systemActive~0)| 1)) (and (= ~systemActive~0 0) .cse2 .cse1) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~waterLevel~0)| 1)) (and .cse2 (<= 1 ~waterLevel~0) .cse0 .cse1))) [2018-12-01 22:37:11,040 INFO L448 ceAbstractionStarter]: For program point L551(lines 551 557) no Hoare annotation was computed. [2018-12-01 22:37:11,041 INFO L448 ceAbstractionStarter]: For program point L551-1(lines 551 557) no Hoare annotation was computed. [2018-12-01 22:37:11,041 INFO L448 ceAbstractionStarter]: For program point testEXIT(lines 531 596) no Hoare annotation was computed. [2018-12-01 22:37:11,041 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 271 279) no Hoare annotation was computed. [2018-12-01 22:37:11,041 INFO L451 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 271 279) the Hoare annotation is: true [2018-12-01 22:37:11,041 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 271 279) no Hoare annotation was computed. [2018-12-01 22:37:11,041 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-01 22:37:11,041 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)) [2018-12-01 22:37:11,041 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-01 22:37:11,041 INFO L448 ceAbstractionStarter]: For program point activatePumpFINAL(lines 405 412) no Hoare annotation was computed. [2018-12-01 22:37:11,041 INFO L448 ceAbstractionStarter]: For program point activatePumpEXIT(lines 405 412) no Hoare annotation was computed. [2018-12-01 22:37:11,041 INFO L444 ceAbstractionStarter]: At program point activatePumpENTRY(lines 405 412) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 2) (not (= ~systemActive~0 1)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-12-01 22:37:11,041 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 477 495) no Hoare annotation was computed. [2018-12-01 22:37:11,041 INFO L448 ceAbstractionStarter]: For program point L486(lines 486 490) no Hoare annotation was computed. [2018-12-01 22:37:11,041 INFO L451 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 477 495) the Hoare annotation is: true [2018-12-01 22:37:11,041 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 477 495) no Hoare annotation was computed. [2018-12-01 22:37:11,041 INFO L451 ceAbstractionStarter]: At program point L484(line 484) the Hoare annotation is: true [2018-12-01 22:37:11,041 INFO L448 ceAbstractionStarter]: For program point L486-2(lines 486 490) no Hoare annotation was computed. [2018-12-01 22:37:11,041 INFO L448 ceAbstractionStarter]: For program point L484-1(line 484) no Hoare annotation was computed. [2018-12-01 22:37:11,041 INFO L451 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 248 256) the Hoare annotation is: true [2018-12-01 22:37:11,041 INFO L448 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 248 256) no Hoare annotation was computed. [2018-12-01 22:37:11,041 INFO L448 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 248 256) no Hoare annotation was computed. [2018-12-01 22:37:11,042 INFO L448 ceAbstractionStarter]: For program point L208-1(lines 204 215) no Hoare annotation was computed. [2018-12-01 22:37:11,042 INFO L451 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 204 215) the Hoare annotation is: true [2018-12-01 22:37:11,042 INFO L448 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 204 215) no Hoare annotation was computed. [2018-12-01 22:37:11,042 INFO L444 ceAbstractionStarter]: At program point timeShiftENTRY(lines 322 345) the Hoare annotation is: (let ((.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (not (= ~systemActive~0 1))) (.cse1 (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)))) (and (or (or (not (= 1 |old(~pumpRunning~0)|)) (or (< |old(~waterLevel~0)| 2) .cse0)) .cse1) (or .cse2 (not (= ~systemActive~0 0)) .cse1) (or .cse2 (< |old(~waterLevel~0)| 1) .cse0 .cse1))) [2018-12-01 22:37:11,042 INFO L444 ceAbstractionStarter]: At program point L335(line 335) the Hoare annotation is: (let ((.cse3 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (let ((.cse0 (< |old(~waterLevel~0)| 2)) (.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1))) (.cse5 (and (= ~waterLevel~0 |old(~waterLevel~0)|) .cse3))) (and (or (or (not (= 1 |old(~pumpRunning~0)|)) (or .cse0 .cse1)) (let ((.cse2 (+ ~waterLevel~0 1))) (and (<= .cse2 |old(~waterLevel~0)|) (<= |old(~waterLevel~0)| .cse2) .cse3))) (or (or (or .cse4 .cse1) .cse0) .cse5) (or .cse4 (not (= ~systemActive~0 0))) (or .cse4 .cse1 .cse5 (not (= |old(~waterLevel~0)| 1)))))) [2018-12-01 22:37:11,042 INFO L444 ceAbstractionStarter]: At program point L333(lines 333 339) the Hoare annotation is: (let ((.cse4 (= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1))) (.cse3 (and .cse4 (= |old(~pumpRunning~0)| ~pumpRunning~0)))) (and (or (let ((.cse0 (+ ~waterLevel~0 1))) (and (<= .cse0 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0) (<= |old(~waterLevel~0)| .cse0))) (or (not (= 1 |old(~pumpRunning~0)|)) (or (< |old(~waterLevel~0)| 2) .cse1))) (or .cse2 (not (= ~systemActive~0 0)) .cse3) (or (and (<= 2 ~waterLevel~0) (= ~pumpRunning~0 1) .cse4) .cse2 (< |old(~waterLevel~0)| 1) .cse1 .cse3)))) [2018-12-01 22:37:11,042 INFO L448 ceAbstractionStarter]: For program point timeShiftEXIT(lines 322 345) no Hoare annotation was computed. [2018-12-01 22:37:11,042 INFO L444 ceAbstractionStarter]: At program point L328(line 328) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (not (= ~systemActive~0 1)))) (and (or (or (not (= 1 |old(~pumpRunning~0)|)) (or (< |old(~waterLevel~0)| 2) .cse0)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (or .cse1 (not (= ~systemActive~0 0))) (or .cse1 (< |old(~waterLevel~0)| 1) .cse0))) [2018-12-01 22:37:11,042 INFO L448 ceAbstractionStarter]: For program point timeShiftFINAL(lines 322 345) no Hoare annotation was computed. [2018-12-01 22:37:11,042 INFO L448 ceAbstractionStarter]: For program point L326(lines 325 344) no Hoare annotation was computed. [2018-12-01 22:37:11,042 INFO L448 ceAbstractionStarter]: For program point cleanupEXIT(lines 42 71) no Hoare annotation was computed. [2018-12-01 22:37:11,042 INFO L448 ceAbstractionStarter]: For program point L63(line 63) no Hoare annotation was computed. [2018-12-01 22:37:11,042 INFO L451 ceAbstractionStarter]: At program point cleanupENTRY(lines 42 71) the Hoare annotation is: true [2018-12-01 22:37:11,042 INFO L448 ceAbstractionStarter]: For program point L56(lines 56 60) no Hoare annotation was computed. [2018-12-01 22:37:11,042 INFO L451 ceAbstractionStarter]: At program point L56-1(lines 56 60) the Hoare annotation is: true [2018-12-01 22:37:11,043 INFO L448 ceAbstractionStarter]: For program point L53(line 53) no Hoare annotation was computed. [2018-12-01 22:37:11,043 INFO L451 ceAbstractionStarter]: At program point L52-2(lines 52 66) the Hoare annotation is: true [2018-12-01 22:37:11,043 INFO L451 ceAbstractionStarter]: At program point L48(line 48) the Hoare annotation is: true [2018-12-01 22:37:11,043 INFO L448 ceAbstractionStarter]: For program point L48-1(line 48) no Hoare annotation was computed. [2018-12-01 22:37:11,043 INFO L451 ceAbstractionStarter]: At program point L67(lines 42 71) the Hoare annotation is: true [2018-12-01 22:37:11,043 INFO L444 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 180 191) the Hoare annotation is: (or (= ~waterLevel~0 |old(~waterLevel~0)|) (not (= 1 ~pumpRunning~0)) (or (< |old(~waterLevel~0)| 2) (not (= ~systemActive~0 1)))) [2018-12-01 22:37:11,043 INFO L448 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 180 191) no Hoare annotation was computed. [2018-12-01 22:37:11,043 INFO L448 ceAbstractionStarter]: For program point L184-1(lines 180 191) no Hoare annotation was computed. [2018-12-01 22:37:11,043 INFO L448 ceAbstractionStarter]: For program point setupEXIT(lines 99 105) no Hoare annotation was computed. [2018-12-01 22:37:11,043 INFO L451 ceAbstractionStarter]: At program point setupFINAL(lines 99 105) the Hoare annotation is: true [2018-12-01 22:37:11,043 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-01 22:37:11,043 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~pumpRunning~0 0) (= ~systemActive~0 1)) [2018-12-01 22:37:11,043 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-01 22:37:11,043 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-01 22:37:11,043 INFO L444 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 354 378) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-12-01 22:37:11,043 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 354 378) no Hoare annotation was computed. [2018-12-01 22:37:11,043 INFO L444 ceAbstractionStarter]: At program point L373(line 373) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-12-01 22:37:11,043 INFO L448 ceAbstractionStarter]: For program point L373-1(lines 354 378) no Hoare annotation was computed. [2018-12-01 22:37:11,043 INFO L444 ceAbstractionStarter]: At program point L368(line 368) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~2) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 (or .cse1 .cse2) (< ~waterLevel~0 2)) (or .cse1 .cse0 .cse2 (not (= ~waterLevel~0 1))))) [2018-12-01 22:37:11,044 INFO L444 ceAbstractionStarter]: At program point L364(line 364) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 (not (= ~waterLevel~0 1))) (or (or .cse0 .cse1) (< ~waterLevel~0 2) (= |old(~pumpRunning~0)| ~pumpRunning~0)))) [2018-12-01 22:37:11,044 INFO L448 ceAbstractionStarter]: For program point L362(lines 362 370) no Hoare annotation was computed. [2018-12-01 22:37:11,044 INFO L444 ceAbstractionStarter]: At program point L360(line 360) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-12-01 22:37:11,044 INFO L448 ceAbstractionStarter]: For program point L360-1(line 360) no Hoare annotation was computed. [2018-12-01 22:37:11,044 INFO L448 ceAbstractionStarter]: For program point L358(lines 358 375) no Hoare annotation was computed. [2018-12-01 22:37:11,044 INFO L448 ceAbstractionStarter]: For program point waterRiseEXIT(lines 192 203) no Hoare annotation was computed. [2018-12-01 22:37:11,044 INFO L444 ceAbstractionStarter]: At program point waterRiseENTRY(lines 192 203) the Hoare annotation is: (let ((.cse0 (not (= 0 ~pumpRunning~0))) (.cse2 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (< |old(~waterLevel~0)| 1) .cse1 .cse2) (or .cse0 (not (= ~systemActive~0 0)) .cse2) (or .cse2 .cse1 (< |old(~waterLevel~0)| 2) (not (= 1 ~pumpRunning~0))))) [2018-12-01 22:37:11,044 INFO L448 ceAbstractionStarter]: For program point L196-1(lines 192 203) no Hoare annotation was computed. [2018-12-01 22:37:11,044 INFO L448 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 598 605) no Hoare annotation was computed. [2018-12-01 22:37:11,044 INFO L451 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 598 605) the Hoare annotation is: true [2018-12-01 22:37:11,044 INFO L448 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 598 605) no Hoare annotation was computed. [2018-12-01 22:37:11,044 INFO L448 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 602) no Hoare annotation was computed. [2018-12-01 22:37:11,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 10:37:11 BoogieIcfgContainer [2018-12-01 22:37:11,053 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-01 22:37:11,054 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-01 22:37:11,054 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-01 22:37:11,054 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-01 22:37:11,054 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 10:36:52" (3/4) ... [2018-12-01 22:37:11,057 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-01 22:37:11,062 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-12-01 22:37:11,062 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-12-01 22:37:11,062 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification4_spec__1 [2018-12-01 22:37:11,062 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-01 22:37:11,062 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure stopSystem [2018-12-01 22:37:11,062 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-12-01 22:37:11,062 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterLevel [2018-12-01 22:37:11,062 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-12-01 22:37:11,062 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-12-01 22:37:11,062 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-12-01 22:37:11,062 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-12-01 22:37:11,062 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-12-01 22:37:11,063 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-12-01 22:37:11,063 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-12-01 22:37:11,063 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterSensorDry [2018-12-01 22:37:11,063 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-01 22:37:11,063 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-12-01 22:37:11,063 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-12-01 22:37:11,063 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure getWaterLevel [2018-12-01 22:37:11,063 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-12-01 22:37:11,063 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-12-01 22:37:11,063 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-12-01 22:37:11,063 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-12-01 22:37:11,063 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-12-01 22:37:11,063 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2018-12-01 22:37:11,063 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-12-01 22:37:11,063 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-12-01 22:37:11,067 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 46 nodes and edges [2018-12-01 22:37:11,067 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2018-12-01 22:37:11,068 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-12-01 22:37:11,068 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-01 22:37:11,068 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-01 22:37:11,068 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-01 22:37:11,088 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(systemActive) == 1) || ((systemActive == 0 && 0 == pumpRunning) && splverifierCounter == 0)) || !(0 == \old(pumpRunning))) || (((2 <= waterLevel && pumpRunning == 1) && systemActive == 1) && splverifierCounter == 0)) || !(\old(waterLevel) == 1)) || (((0 == pumpRunning && 1 <= waterLevel) && systemActive == 1) && splverifierCounter == 0) [2018-12-01 22:37:11,088 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1) [2018-12-01 22:37:11,119 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_fd6fc48e-dae2-45e7-b344-91776f6eea74/bin-2019/utaipan/witness.graphml [2018-12-01 22:37:11,119 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-01 22:37:11,120 INFO L168 Benchmark]: Toolchain (without parser) took 19176.10 ms. Allocated memory was 1.0 GB in the beginning and 2.1 GB in the end (delta: 1.0 GB). Free memory was 952.4 MB in the beginning and 1.6 GB in the end (delta: -617.1 MB). Peak memory consumption was 410.0 MB. Max. memory is 11.5 GB. [2018-12-01 22:37:11,120 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 22:37:11,120 INFO L168 Benchmark]: CACSL2BoogieTranslator took 318.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.2 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -134.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. [2018-12-01 22:37:11,121 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.78 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 22:37:11,121 INFO L168 Benchmark]: Boogie Preprocessor took 21.82 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 22:37:11,121 INFO L168 Benchmark]: RCFGBuilder took 339.57 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 46.8 MB). Peak memory consumption was 46.8 MB. Max. memory is 11.5 GB. [2018-12-01 22:37:11,121 INFO L168 Benchmark]: TraceAbstraction took 18406.42 ms. Allocated memory was 1.1 GB in the beginning and 2.1 GB in the end (delta: 913.8 MB). Free memory was 1.0 GB in the beginning and 1.6 GB in the end (delta: -535.8 MB). Peak memory consumption was 1.2 GB. Max. memory is 11.5 GB. [2018-12-01 22:37:11,121 INFO L168 Benchmark]: Witness Printer took 65.42 ms. Allocated memory is still 2.1 GB. Free memory was 1.6 GB in the beginning and 1.6 GB in the end (delta: 45.1 kB). Peak memory consumption was 45.1 kB. Max. memory is 11.5 GB. [2018-12-01 22:37:11,123 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 318.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.2 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -134.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.78 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.82 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 339.57 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 46.8 MB). Peak memory consumption was 46.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 18406.42 ms. Allocated memory was 1.1 GB in the beginning and 2.1 GB in the end (delta: 913.8 MB). Free memory was 1.0 GB in the beginning and 1.6 GB in the end (delta: -535.8 MB). Peak memory consumption was 1.2 GB. Max. memory is 11.5 GB. * Witness Printer took 65.42 ms. Allocated memory is still 2.1 GB. Free memory was 1.6 GB in the beginning and 1.6 GB in the end (delta: 45.1 kB). Peak memory consumption was 45.1 kB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 602]: 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: 540]: Loop Invariant Derived loop invariant: (!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1) - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 541]: Loop Invariant Derived loop invariant: ((((!(\old(systemActive) == 1) || ((systemActive == 0 && 0 == pumpRunning) && splverifierCounter == 0)) || !(0 == \old(pumpRunning))) || (((2 <= waterLevel && pumpRunning == 1) && systemActive == 1) && splverifierCounter == 0)) || !(\old(waterLevel) == 1)) || (((0 == pumpRunning && 1 <= waterLevel) && systemActive == 1) && splverifierCounter == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 28 procedures, 147 locations, 1 error locations. SAFE Result, 18.3s OverallTime, 15 OverallIterations, 4 TraceHistogramMax, 7.6s AutomataDifference, 0.0s DeadEndRemovalTime, 2.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 2549 SDtfs, 3358 SDslu, 7044 SDs, 0 SdLazy, 7194 SolverSat, 1677 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.1s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 2816 GetRequests, 2567 SyntacticMatches, 35 SemanticMatches, 214 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1380 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1619occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 4.1s AbstIntTime, 8 AbstIntIterations, 2 AbstIntStrong, 0.9980363831417235 AbsIntWeakeningRatio, 0.9172932330827067 AbsIntAvgWeakeningVarsNumRemoved, 43.432330827067666 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 15 MinimizatonAttempts, 871 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 61 LocationsWithAnnotation, 4777 PreInvPairs, 4880 NumberOfFragments, 1297 HoareAnnotationTreeSize, 4777 FomulaSimplifications, 20389 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 61 FomulaSimplificationsInter, 18211 FormulaSimplificationTreeSizeReductionInter, 1.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 2990 NumberOfCodeBlocks, 2935 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 4122 ConstructedInterpolants, 0 QuantifiedInterpolants, 900563 SizeOfPredicates, 28 NumberOfNonLiveVariables, 6133 ConjunctsInSsa, 70 ConjunctsInUnsatCore, 29 InterpolantComputations, 10 PerfectInterpolantSequences, 1774/1920 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...