./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product49_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_71d1833c-1ced-466c-92b8-49bfeb7c61e0/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_71d1833c-1ced-466c-92b8-49bfeb7c61e0/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_71d1833c-1ced-466c-92b8-49bfeb7c61e0/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_71d1833c-1ced-466c-92b8-49bfeb7c61e0/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product49_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_71d1833c-1ced-466c-92b8-49bfeb7c61e0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_71d1833c-1ced-466c-92b8-49bfeb7c61e0/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 712263c6c933aaef268a48b623f3b4ee6fd9ad4b ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-03 06:18:52,562 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 06:18:52,563 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 06:18:52,569 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 06:18:52,569 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 06:18:52,570 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 06:18:52,570 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 06:18:52,571 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 06:18:52,573 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 06:18:52,573 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 06:18:52,574 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 06:18:52,574 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 06:18:52,575 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 06:18:52,575 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 06:18:52,576 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 06:18:52,576 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 06:18:52,577 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 06:18:52,578 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 06:18:52,579 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 06:18:52,580 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 06:18:52,580 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 06:18:52,581 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 06:18:52,583 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 06:18:52,583 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 06:18:52,583 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 06:18:52,584 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 06:18:52,584 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 06:18:52,584 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 06:18:52,585 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 06:18:52,585 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 06:18:52,586 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 06:18:52,586 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-03 06:18:52,586 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-03 06:18:52,586 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-03 06:18:52,587 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-03 06:18:52,588 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-03 06:18:52,588 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_71d1833c-1ced-466c-92b8-49bfeb7c61e0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-03 06:18:52,596 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 06:18:52,596 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 06:18:52,596 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 06:18:52,597 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 06:18:52,597 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 06:18:52,597 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 06:18:52,597 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 06:18:52,597 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 06:18:52,597 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 06:18:52,598 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-03 06:18:52,598 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 06:18:52,598 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-03 06:18:52,598 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 06:18:52,599 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 06:18:52,599 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 06:18:52,599 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 06:18:52,599 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 06:18:52,599 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 06:18:52,599 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 06:18:52,600 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 06:18:52,600 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 06:18:52,600 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 06:18:52,600 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 06:18:52,600 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 06:18:52,600 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 06:18:52,601 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 06:18:52,601 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-03 06:18:52,601 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 06:18:52,601 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 06:18:52,601 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 06:18:52,601 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 06:18:52,601 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 06:18:52,602 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 06:18:52,602 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 06:18:52,602 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 06:18:52,602 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 06:18:52,602 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_71d1833c-1ced-466c-92b8-49bfeb7c61e0/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 -> 712263c6c933aaef268a48b623f3b4ee6fd9ad4b [2018-12-03 06:18:52,626 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 06:18:52,634 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 06:18:52,637 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 06:18:52,638 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-03 06:18:52,638 INFO L276 PluginConnector]: CDTParser initialized [2018-12-03 06:18:52,639 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_71d1833c-1ced-466c-92b8-49bfeb7c61e0/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product49_true-unreach-call_false-termination.cil.c [2018-12-03 06:18:52,682 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_71d1833c-1ced-466c-92b8-49bfeb7c61e0/bin-2019/utaipan/data/157b9b02c/f408df92d519480598ed69312a0601d1/FLAG2c8abf53b [2018-12-03 06:18:53,015 INFO L307 CDTParser]: Found 1 translation units. [2018-12-03 06:18:53,015 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_71d1833c-1ced-466c-92b8-49bfeb7c61e0/sv-benchmarks/c/product-lines/minepump_spec4_product49_true-unreach-call_false-termination.cil.c [2018-12-03 06:18:53,022 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_71d1833c-1ced-466c-92b8-49bfeb7c61e0/bin-2019/utaipan/data/157b9b02c/f408df92d519480598ed69312a0601d1/FLAG2c8abf53b [2018-12-03 06:18:53,030 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_71d1833c-1ced-466c-92b8-49bfeb7c61e0/bin-2019/utaipan/data/157b9b02c/f408df92d519480598ed69312a0601d1 [2018-12-03 06:18:53,031 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 06:18:53,032 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-03 06:18:53,033 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-03 06:18:53,033 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-03 06:18:53,035 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-03 06:18:53,035 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 06:18:53" (1/1) ... [2018-12-03 06:18:53,037 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2648fef5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:18:53, skipping insertion in model container [2018-12-03 06:18:53,037 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 06:18:53" (1/1) ... [2018-12-03 06:18:53,042 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-03 06:18:53,069 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-03 06:18:53,243 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 06:18:53,295 INFO L191 MainTranslator]: Completed pre-run [2018-12-03 06:18:53,343 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 06:18:53,358 INFO L195 MainTranslator]: Completed translation [2018-12-03 06:18:53,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:18:53 WrapperNode [2018-12-03 06:18:53,358 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-03 06:18:53,359 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 06:18:53,359 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 06:18:53,359 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 06:18:53,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:18:53" (1/1) ... [2018-12-03 06:18:53,374 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:18:53" (1/1) ... [2018-12-03 06:18:53,379 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 06:18:53,379 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 06:18:53,379 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 06:18:53,379 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 06:18:53,385 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:18:53" (1/1) ... [2018-12-03 06:18:53,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:18:53" (1/1) ... [2018-12-03 06:18:53,387 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:18:53" (1/1) ... [2018-12-03 06:18:53,387 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:18:53" (1/1) ... [2018-12-03 06:18:53,394 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:18:53" (1/1) ... [2018-12-03 06:18:53,398 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:18:53" (1/1) ... [2018-12-03 06:18:53,400 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:18:53" (1/1) ... [2018-12-03 06:18:53,403 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 06:18:53,403 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 06:18:53,403 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 06:18:53,403 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 06:18:53,404 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:18:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_71d1833c-1ced-466c-92b8-49bfeb7c61e0/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 [2018-12-03 06:18:53,439 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-03 06:18:53,439 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-03 06:18:53,439 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2018-12-03 06:18:53,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2018-12-03 06:18:53,439 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-03 06:18:53,440 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-03 06:18:53,440 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-12-03 06:18:53,440 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-12-03 06:18:53,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-03 06:18:53,440 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-03 06:18:53,440 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-03 06:18:53,440 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-03 06:18:53,440 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-03 06:18:53,440 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-03 06:18:53,441 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-03 06:18:53,441 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-03 06:18:53,441 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-03 06:18:53,441 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-03 06:18:53,441 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-03 06:18:53,441 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-12-03 06:18:53,441 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-12-03 06:18:53,441 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-03 06:18:53,441 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-03 06:18:53,441 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-03 06:18:53,442 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-03 06:18:53,442 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-12-03 06:18:53,442 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-12-03 06:18:53,442 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-03 06:18:53,442 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-03 06:18:53,442 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-03 06:18:53,442 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-03 06:18:53,442 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-03 06:18:53,442 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-03 06:18:53,443 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-12-03 06:18:53,443 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-12-03 06:18:53,443 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-03 06:18:53,443 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-03 06:18:53,443 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-03 06:18:53,443 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-03 06:18:53,443 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-03 06:18:53,443 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-03 06:18:53,443 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-03 06:18:53,443 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-03 06:18:53,444 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-03 06:18:53,444 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-03 06:18:53,444 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-03 06:18:53,444 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-03 06:18:53,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-03 06:18:53,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-03 06:18:53,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-03 06:18:53,444 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-03 06:18:53,444 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-03 06:18:53,444 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-03 06:18:53,445 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-03 06:18:53,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 06:18:53,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 06:18:53,756 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 06:18:53,756 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-03 06:18:53,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 06:18:53 BoogieIcfgContainer [2018-12-03 06:18:53,757 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 06:18:53,757 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 06:18:53,757 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 06:18:53,759 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 06:18:53,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 06:18:53" (1/3) ... [2018-12-03 06:18:53,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@261795d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 06:18:53, skipping insertion in model container [2018-12-03 06:18:53,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:18:53" (2/3) ... [2018-12-03 06:18:53,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@261795d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 06:18:53, skipping insertion in model container [2018-12-03 06:18:53,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 06:18:53" (3/3) ... [2018-12-03 06:18:53,762 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product49_true-unreach-call_false-termination.cil.c [2018-12-03 06:18:53,768 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 06:18:53,773 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-03 06:18:53,783 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-03 06:18:53,802 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 06:18:53,802 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 06:18:53,802 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 06:18:53,802 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 06:18:53,803 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 06:18:53,803 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 06:18:53,803 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 06:18:53,803 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 06:18:53,814 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states. [2018-12-03 06:18:53,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-03 06:18:53,819 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 06:18:53,819 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] [2018-12-03 06:18:53,821 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 06:18:53,824 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 06:18:53,824 INFO L82 PathProgramCache]: Analyzing trace with hash 1018444604, now seen corresponding path program 1 times [2018-12-03 06:18:53,826 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 06:18:53,854 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:18:53,854 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 06:18:53,854 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:18:53,854 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 06:18:53,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 06:18:53,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 06:18:53,958 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 06:18:53,958 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-03 06:18:53,959 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 06:18:53,962 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-03 06:18:53,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-03 06:18:53,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-03 06:18:53,971 INFO L87 Difference]: Start difference. First operand 141 states. Second operand 2 states. [2018-12-03 06:18:53,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 06:18:53,993 INFO L93 Difference]: Finished difference Result 256 states and 317 transitions. [2018-12-03 06:18:53,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-03 06:18:53,994 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-03 06:18:53,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 06:18:54,000 INFO L225 Difference]: With dead ends: 256 [2018-12-03 06:18:54,001 INFO L226 Difference]: Without dead ends: 128 [2018-12-03 06:18:54,003 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 [2018-12-03 06:18:54,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2018-12-03 06:18:54,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2018-12-03 06:18:54,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2018-12-03 06:18:54,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 150 transitions. [2018-12-03 06:18:54,034 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 150 transitions. Word has length 46 [2018-12-03 06:18:54,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 06:18:54,034 INFO L480 AbstractCegarLoop]: Abstraction has 128 states and 150 transitions. [2018-12-03 06:18:54,034 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-03 06:18:54,034 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 150 transitions. [2018-12-03 06:18:54,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-03 06:18:54,036 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 06:18:54,036 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] [2018-12-03 06:18:54,036 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 06:18:54,037 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 06:18:54,037 INFO L82 PathProgramCache]: Analyzing trace with hash -1966963140, now seen corresponding path program 1 times [2018-12-03 06:18:54,037 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 06:18:54,038 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:18:54,038 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 06:18:54,038 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:18:54,038 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 06:18:54,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 06:18:54,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 06:18:54,088 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 06:18:54,088 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-03 06:18:54,088 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 06:18:54,089 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 06:18:54,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 06:18:54,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 06:18:54,090 INFO L87 Difference]: Start difference. First operand 128 states and 150 transitions. Second operand 3 states. [2018-12-03 06:18:54,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 06:18:54,102 INFO L93 Difference]: Finished difference Result 205 states and 239 transitions. [2018-12-03 06:18:54,102 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 06:18:54,102 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-03 06:18:54,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 06:18:54,103 INFO L225 Difference]: With dead ends: 205 [2018-12-03 06:18:54,103 INFO L226 Difference]: Without dead ends: 119 [2018-12-03 06:18:54,104 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 [2018-12-03 06:18:54,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2018-12-03 06:18:54,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2018-12-03 06:18:54,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2018-12-03 06:18:54,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 138 transitions. [2018-12-03 06:18:54,112 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 138 transitions. Word has length 47 [2018-12-03 06:18:54,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 06:18:54,112 INFO L480 AbstractCegarLoop]: Abstraction has 119 states and 138 transitions. [2018-12-03 06:18:54,112 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 06:18:54,112 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 138 transitions. [2018-12-03 06:18:54,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-12-03 06:18:54,113 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 06:18:54,113 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] [2018-12-03 06:18:54,114 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 06:18:54,114 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 06:18:54,114 INFO L82 PathProgramCache]: Analyzing trace with hash -1731407841, now seen corresponding path program 1 times [2018-12-03 06:18:54,114 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 06:18:54,115 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:18:54,115 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 06:18:54,115 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:18:54,115 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 06:18:54,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 06:18:54,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 06:18:54,198 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 06:18:54,198 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-03 06:18:54,198 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 06:18:54,198 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-03 06:18:54,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-03 06:18:54,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-03 06:18:54,199 INFO L87 Difference]: Start difference. First operand 119 states and 138 transitions. Second operand 7 states. [2018-12-03 06:18:54,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 06:18:54,371 INFO L93 Difference]: Finished difference Result 214 states and 253 transitions. [2018-12-03 06:18:54,371 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-03 06:18:54,371 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2018-12-03 06:18:54,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 06:18:54,372 INFO L225 Difference]: With dead ends: 214 [2018-12-03 06:18:54,372 INFO L226 Difference]: Without dead ends: 119 [2018-12-03 06:18:54,373 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-03 06:18:54,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2018-12-03 06:18:54,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2018-12-03 06:18:54,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2018-12-03 06:18:54,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 137 transitions. [2018-12-03 06:18:54,381 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 137 transitions. Word has length 51 [2018-12-03 06:18:54,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 06:18:54,381 INFO L480 AbstractCegarLoop]: Abstraction has 119 states and 137 transitions. [2018-12-03 06:18:54,381 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-03 06:18:54,381 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 137 transitions. [2018-12-03 06:18:54,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-12-03 06:18:54,382 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 06:18:54,382 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 06:18:54,383 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 06:18:54,383 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 06:18:54,383 INFO L82 PathProgramCache]: Analyzing trace with hash -131190691, now seen corresponding path program 1 times [2018-12-03 06:18:54,383 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 06:18:54,383 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:18:54,383 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 06:18:54,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:18:54,384 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 06:18:54,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 06:18:54,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 06:18:54,455 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 06:18:54,455 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-03 06:18:54,455 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 06:18:54,456 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-03 06:18:54,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-03 06:18:54,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-03 06:18:54,456 INFO L87 Difference]: Start difference. First operand 119 states and 137 transitions. Second operand 5 states. [2018-12-03 06:18:54,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 06:18:54,731 INFO L93 Difference]: Finished difference Result 308 states and 371 transitions. [2018-12-03 06:18:54,731 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-03 06:18:54,731 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 64 [2018-12-03 06:18:54,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 06:18:54,733 INFO L225 Difference]: With dead ends: 308 [2018-12-03 06:18:54,733 INFO L226 Difference]: Without dead ends: 213 [2018-12-03 06:18:54,734 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-03 06:18:54,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2018-12-03 06:18:54,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 195. [2018-12-03 06:18:54,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2018-12-03 06:18:54,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 222 transitions. [2018-12-03 06:18:54,757 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 222 transitions. Word has length 64 [2018-12-03 06:18:54,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 06:18:54,757 INFO L480 AbstractCegarLoop]: Abstraction has 195 states and 222 transitions. [2018-12-03 06:18:54,757 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-03 06:18:54,757 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 222 transitions. [2018-12-03 06:18:54,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-12-03 06:18:54,759 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 06:18:54,759 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 06:18:54,759 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 06:18:54,759 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 06:18:54,759 INFO L82 PathProgramCache]: Analyzing trace with hash 660572567, now seen corresponding path program 1 times [2018-12-03 06:18:54,759 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 06:18:54,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:18:54,760 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 06:18:54,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:18:54,760 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 06:18:54,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 06:18:54,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 06:18:54,843 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 06:18:54,843 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-03 06:18:54,844 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 06:18:54,844 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-03 06:18:54,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-03 06:18:54,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-03 06:18:54,844 INFO L87 Difference]: Start difference. First operand 195 states and 222 transitions. Second operand 8 states. [2018-12-03 06:18:54,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 06:18:54,874 INFO L93 Difference]: Finished difference Result 373 states and 437 transitions. [2018-12-03 06:18:54,874 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-03 06:18:54,874 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 78 [2018-12-03 06:18:54,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 06:18:54,876 INFO L225 Difference]: With dead ends: 373 [2018-12-03 06:18:54,876 INFO L226 Difference]: Without dead ends: 202 [2018-12-03 06:18:54,877 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-03 06:18:54,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2018-12-03 06:18:54,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 199. [2018-12-03 06:18:54,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2018-12-03 06:18:54,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 226 transitions. [2018-12-03 06:18:54,891 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 226 transitions. Word has length 78 [2018-12-03 06:18:54,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 06:18:54,892 INFO L480 AbstractCegarLoop]: Abstraction has 199 states and 226 transitions. [2018-12-03 06:18:54,892 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-03 06:18:54,892 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 226 transitions. [2018-12-03 06:18:54,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-12-03 06:18:54,893 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 06:18:54,893 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 06:18:54,894 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 06:18:54,894 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 06:18:54,894 INFO L82 PathProgramCache]: Analyzing trace with hash -725630827, now seen corresponding path program 1 times [2018-12-03 06:18:54,894 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 06:18:54,895 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:18:54,895 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 06:18:54,895 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:18:54,895 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 06:18:54,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 06:18:54,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 06:18:54,986 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 06:18:54,986 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-03 06:18:54,987 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 06:18:54,987 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-03 06:18:54,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-03 06:18:54,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-12-03 06:18:54,988 INFO L87 Difference]: Start difference. First operand 199 states and 226 transitions. Second operand 10 states. [2018-12-03 06:18:55,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 06:18:55,320 INFO L93 Difference]: Finished difference Result 626 states and 778 transitions. [2018-12-03 06:18:55,321 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-03 06:18:55,321 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 78 [2018-12-03 06:18:55,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 06:18:55,323 INFO L225 Difference]: With dead ends: 626 [2018-12-03 06:18:55,324 INFO L226 Difference]: Without dead ends: 451 [2018-12-03 06:18:55,324 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 [2018-12-03 06:18:55,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2018-12-03 06:18:55,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 441. [2018-12-03 06:18:55,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 441 states. [2018-12-03 06:18:55,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 519 transitions. [2018-12-03 06:18:55,350 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 519 transitions. Word has length 78 [2018-12-03 06:18:55,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 06:18:55,350 INFO L480 AbstractCegarLoop]: Abstraction has 441 states and 519 transitions. [2018-12-03 06:18:55,350 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-03 06:18:55,350 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 519 transitions. [2018-12-03 06:18:55,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-12-03 06:18:55,352 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 06:18:55,353 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 06:18:55,353 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 06:18:55,353 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 06:18:55,353 INFO L82 PathProgramCache]: Analyzing trace with hash 1354511015, now seen corresponding path program 1 times [2018-12-03 06:18:55,353 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 06:18:55,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:18:55,354 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 06:18:55,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:18:55,354 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 06:18:55,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 06:18:55,420 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-12-03 06:18:55,420 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 06:18:55,420 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 06:18:55,421 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 137 with the following transitions: [2018-12-03 06:18:55,422 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [41], [44], [48], [49], [50], [53], [54], [55], [58], [60], [63], [70], [73], [74], [77], [79], [81], [90], [94], [98], [101], [106], [112], [114], [117], [132], [133], [134], [135], [136], [137], [138], [140], [143], [147], [148], [149], [150], [160], [163], [167], [173], [202], [206], [207], [211], [214], [216], [219], [229], [232], [236], [237], [240], [241], [242], [243], [244], [246], [247], [248], [249], [250], [251], [252], [253], [254], [256], [257], [258], [260], [261], [262], [263], [266], [267], [268], [269], [272], [273], [276], [277], [278], [279], [280], [281], [282], [283], [288], [289], [290], [292], [293], [294], [295] [2018-12-03 06:18:55,445 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 06:18:55,445 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 06:18:55,676 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-03 06:18:55,677 INFO L272 AbstractInterpreter]: Visited 52 different actions 52 times. Never merged. Never widened. Performed 2049 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2049 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-12-03 06:18:55,686 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 06:18:55,687 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-03 06:18:55,841 INFO L227 lantSequenceWeakener]: Weakened 66 states. On average, predicates are now at 97.26% of their original sizes. [2018-12-03 06:18:55,841 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-03 06:18:55,887 INFO L418 sIntCurrentIteration]: We unified 135 AI predicates to 135 [2018-12-03 06:18:55,887 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-03 06:18:55,888 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-03 06:18:55,888 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [6] total 15 [2018-12-03 06:18:55,888 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 06:18:55,888 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-03 06:18:55,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-03 06:18:55,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2018-12-03 06:18:55,889 INFO L87 Difference]: Start difference. First operand 441 states and 519 transitions. Second operand 11 states. [2018-12-03 06:18:57,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 06:18:57,030 INFO L93 Difference]: Finished difference Result 933 states and 1129 transitions. [2018-12-03 06:18:57,030 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-03 06:18:57,030 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 136 [2018-12-03 06:18:57,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 06:18:57,033 INFO L225 Difference]: With dead ends: 933 [2018-12-03 06:18:57,033 INFO L226 Difference]: Without dead ends: 612 [2018-12-03 06:18:57,034 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 135 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2018-12-03 06:18:57,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2018-12-03 06:18:57,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 596. [2018-12-03 06:18:57,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 596 states. [2018-12-03 06:18:57,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 701 transitions. [2018-12-03 06:18:57,065 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 701 transitions. Word has length 136 [2018-12-03 06:18:57,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 06:18:57,065 INFO L480 AbstractCegarLoop]: Abstraction has 596 states and 701 transitions. [2018-12-03 06:18:57,066 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-03 06:18:57,066 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 701 transitions. [2018-12-03 06:18:57,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-12-03 06:18:57,068 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 06:18:57,068 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 06:18:57,068 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 06:18:57,068 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 06:18:57,069 INFO L82 PathProgramCache]: Analyzing trace with hash 781424301, now seen corresponding path program 1 times [2018-12-03 06:18:57,069 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 06:18:57,069 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:18:57,070 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 06:18:57,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:18:57,070 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 06:18:57,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 06:18:57,126 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-03 06:18:57,127 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 06:18:57,127 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 06:18:57,127 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 133 with the following transitions: [2018-12-03 06:18:57,127 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [41], [44], [48], [49], [50], [53], [54], [55], [58], [60], [63], [70], [73], [74], [77], [79], [81], [90], [94], [98], [101], [104], [106], [112], [114], [117], [132], [133], [134], [135], [136], [137], [138], [140], [143], [147], [148], [149], [150], [160], [163], [167], [173], [202], [206], [207], [211], [214], [216], [219], [229], [232], [236], [237], [240], [241], [242], [243], [244], [246], [247], [248], [249], [250], [251], [252], [253], [254], [256], [257], [258], [260], [261], [262], [263], [266], [267], [268], [269], [272], [273], [276], [277], [278], [279], [280], [281], [282], [283], [288], [289], [290], [292], [293], [294], [295] [2018-12-03 06:18:57,129 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 06:18:57,129 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 06:18:58,220 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 06:18:58,221 INFO L272 AbstractInterpreter]: Visited 112 different actions 835 times. Merged at 18 different actions 85 times. Never widened. Performed 33311 root evaluator evaluations with a maximum evaluation depth of 5. Performed 33311 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 16 fixpoints after 4 different actions. Largest state had 132 variables. [2018-12-03 06:18:58,223 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 06:18:58,223 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 06:18:58,223 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 06:18:58,224 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_71d1833c-1ced-466c-92b8-49bfeb7c61e0/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 [2018-12-03 06:18:58,232 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 06:18:58,232 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 06:18:58,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 06:18:58,310 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 06:18:58,399 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-03 06:18:58,400 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 06:18:58,614 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-12-03 06:18:58,630 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-03 06:18:58,630 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [6, 10] total 19 [2018-12-03 06:18:58,630 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 06:18:58,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-03 06:18:58,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-03 06:18:58,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2018-12-03 06:18:58,631 INFO L87 Difference]: Start difference. First operand 596 states and 701 transitions. Second operand 11 states. [2018-12-03 06:18:59,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 06:18:59,316 INFO L93 Difference]: Finished difference Result 1113 states and 1438 transitions. [2018-12-03 06:18:59,316 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-12-03 06:18:59,316 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 132 [2018-12-03 06:18:59,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 06:18:59,319 INFO L225 Difference]: With dead ends: 1113 [2018-12-03 06:18:59,319 INFO L226 Difference]: Without dead ends: 792 [2018-12-03 06:18:59,320 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 242 SyntacticMatches, 12 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=161, Invalid=651, Unknown=0, NotChecked=0, Total=812 [2018-12-03 06:18:59,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 792 states. [2018-12-03 06:18:59,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 792 to 704. [2018-12-03 06:18:59,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 704 states. [2018-12-03 06:18:59,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 841 transitions. [2018-12-03 06:18:59,349 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 841 transitions. Word has length 132 [2018-12-03 06:18:59,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 06:18:59,349 INFO L480 AbstractCegarLoop]: Abstraction has 704 states and 841 transitions. [2018-12-03 06:18:59,349 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-03 06:18:59,350 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 841 transitions. [2018-12-03 06:18:59,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-12-03 06:18:59,351 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 06:18:59,351 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 06:18:59,351 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 06:18:59,351 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 06:18:59,351 INFO L82 PathProgramCache]: Analyzing trace with hash 2114967783, now seen corresponding path program 1 times [2018-12-03 06:18:59,351 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 06:18:59,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:18:59,352 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 06:18:59,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:18:59,352 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 06:18:59,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 06:18:59,397 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-03 06:18:59,397 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 06:18:59,398 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 06:18:59,398 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 129 with the following transitions: [2018-12-03 06:18:59,398 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [41], [44], [48], [49], [50], [53], [54], [55], [58], [60], [63], [70], [73], [74], [77], [79], [81], [90], [94], [98], [104], [106], [112], [114], [117], [132], [133], [134], [135], [136], [137], [138], [140], [143], [147], [148], [149], [150], [160], [163], [167], [173], [202], [206], [207], [211], [214], [216], [219], [229], [237], [240], [241], [242], [243], [244], [246], [247], [248], [249], [250], [251], [252], [253], [254], [256], [257], [258], [260], [261], [262], [263], [266], [267], [272], [273], [276], [277], [278], [279], [280], [281], [282], [283], [288], [289], [290], [292], [293], [294], [295] [2018-12-03 06:18:59,400 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 06:18:59,400 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 06:18:59,976 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 06:18:59,976 INFO L272 AbstractInterpreter]: Visited 107 different actions 488 times. Merged at 16 different actions 48 times. Never widened. Performed 17698 root evaluator evaluations with a maximum evaluation depth of 5. Performed 17698 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 7 fixpoints after 2 different actions. Largest state had 132 variables. [2018-12-03 06:18:59,978 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 06:18:59,978 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 06:18:59,979 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 06:18:59,979 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_71d1833c-1ced-466c-92b8-49bfeb7c61e0/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 [2018-12-03 06:18:59,985 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 06:18:59,985 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 06:19:00,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 06:19:00,066 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 06:19:00,078 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-12-03 06:19:00,078 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 06:19:00,213 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-03 06:19:00,229 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-03 06:19:00,229 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 6 [2018-12-03 06:19:00,229 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 06:19:00,229 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-03 06:19:00,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-03 06:19:00,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-03 06:19:00,230 INFO L87 Difference]: Start difference. First operand 704 states and 841 transitions. Second operand 6 states. [2018-12-03 06:19:00,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 06:19:00,259 INFO L93 Difference]: Finished difference Result 1197 states and 1467 transitions. [2018-12-03 06:19:00,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-03 06:19:00,260 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 128 [2018-12-03 06:19:00,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 06:19:00,261 INFO L225 Difference]: With dead ends: 1197 [2018-12-03 06:19:00,262 INFO L226 Difference]: Without dead ends: 574 [2018-12-03 06:19:00,263 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 251 SyntacticMatches, 6 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-03 06:19:00,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2018-12-03 06:19:00,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 574. [2018-12-03 06:19:00,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 574 states. [2018-12-03 06:19:00,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 685 transitions. [2018-12-03 06:19:00,308 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 685 transitions. Word has length 128 [2018-12-03 06:19:00,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 06:19:00,308 INFO L480 AbstractCegarLoop]: Abstraction has 574 states and 685 transitions. [2018-12-03 06:19:00,308 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-03 06:19:00,308 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 685 transitions. [2018-12-03 06:19:00,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2018-12-03 06:19:00,310 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 06:19:00,310 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 06:19:00,310 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 06:19:00,310 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 06:19:00,310 INFO L82 PathProgramCache]: Analyzing trace with hash -1543337645, now seen corresponding path program 1 times [2018-12-03 06:19:00,310 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 06:19:00,311 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:19:00,311 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 06:19:00,311 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:19:00,311 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 06:19:00,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 06:19:00,379 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-12-03 06:19:00,380 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 06:19:00,380 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-03 06:19:00,380 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 06:19:00,380 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-03 06:19:00,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-03 06:19:00,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-03 06:19:00,380 INFO L87 Difference]: Start difference. First operand 574 states and 685 transitions. Second operand 6 states. [2018-12-03 06:19:00,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 06:19:00,406 INFO L93 Difference]: Finished difference Result 974 states and 1183 transitions. [2018-12-03 06:19:00,406 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-03 06:19:00,406 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 185 [2018-12-03 06:19:00,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 06:19:00,408 INFO L225 Difference]: With dead ends: 974 [2018-12-03 06:19:00,408 INFO L226 Difference]: Without dead ends: 584 [2018-12-03 06:19:00,408 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-03 06:19:00,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2018-12-03 06:19:00,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 584. [2018-12-03 06:19:00,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 584 states. [2018-12-03 06:19:00,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 695 transitions. [2018-12-03 06:19:00,426 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 695 transitions. Word has length 185 [2018-12-03 06:19:00,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 06:19:00,426 INFO L480 AbstractCegarLoop]: Abstraction has 584 states and 695 transitions. [2018-12-03 06:19:00,426 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-03 06:19:00,426 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 695 transitions. [2018-12-03 06:19:00,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2018-12-03 06:19:00,428 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 06:19:00,428 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 06:19:00,428 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 06:19:00,428 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 06:19:00,428 INFO L82 PathProgramCache]: Analyzing trace with hash -2052810735, now seen corresponding path program 1 times [2018-12-03 06:19:00,428 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 06:19:00,429 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:19:00,429 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 06:19:00,429 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:19:00,429 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 06:19:00,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 06:19:00,479 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2018-12-03 06:19:00,479 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 06:19:00,479 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-03 06:19:00,479 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 06:19:00,479 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-03 06:19:00,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-03 06:19:00,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-03 06:19:00,480 INFO L87 Difference]: Start difference. First operand 584 states and 695 transitions. Second operand 6 states. [2018-12-03 06:19:00,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 06:19:00,572 INFO L93 Difference]: Finished difference Result 591 states and 704 transitions. [2018-12-03 06:19:00,572 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-03 06:19:00,572 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 185 [2018-12-03 06:19:00,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 06:19:00,574 INFO L225 Difference]: With dead ends: 591 [2018-12-03 06:19:00,574 INFO L226 Difference]: Without dead ends: 588 [2018-12-03 06:19:00,574 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-12-03 06:19:00,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2018-12-03 06:19:00,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 584. [2018-12-03 06:19:00,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 584 states. [2018-12-03 06:19:00,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 694 transitions. [2018-12-03 06:19:00,592 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 694 transitions. Word has length 185 [2018-12-03 06:19:00,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 06:19:00,593 INFO L480 AbstractCegarLoop]: Abstraction has 584 states and 694 transitions. [2018-12-03 06:19:00,593 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-03 06:19:00,593 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 694 transitions. [2018-12-03 06:19:00,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2018-12-03 06:19:00,594 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 06:19:00,594 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] [2018-12-03 06:19:00,594 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 06:19:00,594 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 06:19:00,595 INFO L82 PathProgramCache]: Analyzing trace with hash 280500168, now seen corresponding path program 1 times [2018-12-03 06:19:00,595 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 06:19:00,595 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:19:00,595 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 06:19:00,595 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:19:00,595 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 06:19:00,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 06:19:00,669 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 43 proven. 12 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2018-12-03 06:19:00,669 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 06:19:00,669 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 06:19:00,669 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 190 with the following transitions: [2018-12-03 06:19:00,669 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [41], [44], [48], [49], [50], [55], [58], [60], [66], [70], [73], [74], [78], [79], [80], [81], [90], [94], [98], [101], [104], [106], [112], [114], [117], [132], [133], [134], [135], [136], [137], [138], [140], [145], [147], [148], [149], [150], [160], [163], [167], [173], [202], [206], [207], [211], [214], [216], [219], [226], [229], [232], [236], [237], [240], [241], [242], [243], [244], [246], [247], [248], [249], [250], [251], [252], [253], [254], [256], [257], [258], [260], [261], [264], [265], [266], [267], [268], [269], [272], [273], [276], [277], [278], [279], [280], [281], [282], [283], [288], [289], [290], [292], [293], [294], [295], [298], [299] [2018-12-03 06:19:00,671 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 06:19:00,672 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 06:19:01,293 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 06:19:01,293 INFO L272 AbstractInterpreter]: Visited 114 different actions 557 times. Merged at 18 different actions 56 times. Never widened. Performed 18374 root evaluator evaluations with a maximum evaluation depth of 5. Performed 18374 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 10 fixpoints after 4 different actions. Largest state had 132 variables. [2018-12-03 06:19:01,298 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 06:19:01,298 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 06:19:01,299 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 06:19:01,299 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_71d1833c-1ced-466c-92b8-49bfeb7c61e0/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 [2018-12-03 06:19:01,305 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 06:19:01,305 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 06:19:01,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 06:19:01,368 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 06:19:01,453 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 91 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-03 06:19:01,453 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 06:19:01,732 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 47 proven. 26 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2018-12-03 06:19:01,747 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 06:19:01,747 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 10] total 22 [2018-12-03 06:19:01,747 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 06:19:01,748 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-12-03 06:19:01,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-12-03 06:19:01,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=377, Unknown=0, NotChecked=0, Total=462 [2018-12-03 06:19:01,748 INFO L87 Difference]: Start difference. First operand 584 states and 694 transitions. Second operand 16 states. [2018-12-03 06:19:02,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 06:19:02,699 INFO L93 Difference]: Finished difference Result 1466 states and 1878 transitions. [2018-12-03 06:19:02,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-12-03 06:19:02,700 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 189 [2018-12-03 06:19:02,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 06:19:02,704 INFO L225 Difference]: With dead ends: 1466 [2018-12-03 06:19:02,704 INFO L226 Difference]: Without dead ends: 1064 [2018-12-03 06:19:02,706 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 372 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=307, Invalid=1099, Unknown=0, NotChecked=0, Total=1406 [2018-12-03 06:19:02,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1064 states. [2018-12-03 06:19:02,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1064 to 932. [2018-12-03 06:19:02,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 932 states. [2018-12-03 06:19:02,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 932 states to 932 states and 1099 transitions. [2018-12-03 06:19:02,765 INFO L78 Accepts]: Start accepts. Automaton has 932 states and 1099 transitions. Word has length 189 [2018-12-03 06:19:02,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 06:19:02,765 INFO L480 AbstractCegarLoop]: Abstraction has 932 states and 1099 transitions. [2018-12-03 06:19:02,765 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-12-03 06:19:02,765 INFO L276 IsEmpty]: Start isEmpty. Operand 932 states and 1099 transitions. [2018-12-03 06:19:02,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2018-12-03 06:19:02,768 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 06:19:02,768 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] [2018-12-03 06:19:02,769 INFO L423 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 06:19:02,769 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 06:19:02,769 INFO L82 PathProgramCache]: Analyzing trace with hash -2137984310, now seen corresponding path program 1 times [2018-12-03 06:19:02,769 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 06:19:02,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:19:02,770 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 06:19:02,770 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 06:19:02,770 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 06:19:02,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 06:19:02,852 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 39 proven. 8 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2018-12-03 06:19:02,852 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 06:19:02,853 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 06:19:02,853 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 190 with the following transitions: [2018-12-03 06:19:02,853 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [41], [44], [46], [48], [49], [50], [55], [58], [60], [66], [70], [73], [74], [78], [79], [80], [81], [90], [94], [98], [101], [104], [106], [112], [114], [117], [132], [133], [134], [135], [136], [137], [138], [140], [145], [147], [148], [149], [150], [160], [163], [167], [173], [202], [206], [207], [211], [214], [216], [219], [226], [229], [232], [236], [237], [240], [241], [242], [243], [244], [246], [247], [248], [249], [250], [251], [252], [253], [254], [256], [257], [258], [260], [261], [264], [265], [266], [267], [268], [269], [272], [273], [276], [277], [278], [279], [280], [281], [282], [283], [288], [289], [290], [292], [293], [294], [295], [298], [299] [2018-12-03 06:19:02,854 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 06:19:02,855 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 06:19:03,501 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 06:19:03,502 INFO L272 AbstractInterpreter]: Visited 115 different actions 569 times. Merged at 21 different actions 65 times. Never widened. Performed 21680 root evaluator evaluations with a maximum evaluation depth of 5. Performed 21680 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 13 fixpoints after 5 different actions. Largest state had 132 variables. [2018-12-03 06:19:03,503 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 06:19:03,503 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 06:19:03,503 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 06:19:03,503 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_71d1833c-1ced-466c-92b8-49bfeb7c61e0/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 [2018-12-03 06:19:03,511 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 06:19:03,511 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 06:19:03,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 06:19:03,583 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 06:19:03,627 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2018-12-03 06:19:03,627 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 06:19:03,775 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 39 proven. 8 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2018-12-03 06:19:03,790 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-03 06:19:03,790 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [9, 6] total 13 [2018-12-03 06:19:03,790 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 06:19:03,790 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-03 06:19:03,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-03 06:19:03,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-12-03 06:19:03,790 INFO L87 Difference]: Start difference. First operand 932 states and 1099 transitions. Second operand 6 states. [2018-12-03 06:19:03,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 06:19:03,817 INFO L93 Difference]: Finished difference Result 1151 states and 1354 transitions. [2018-12-03 06:19:03,817 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-03 06:19:03,817 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 189 [2018-12-03 06:19:03,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 06:19:03,818 INFO L225 Difference]: With dead ends: 1151 [2018-12-03 06:19:03,818 INFO L226 Difference]: Without dead ends: 0 [2018-12-03 06:19:03,819 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 [2018-12-03 06:19:03,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-03 06:19:03,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-03 06:19:03,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-03 06:19:03,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-03 06:19:03,819 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 189 [2018-12-03 06:19:03,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 06:19:03,820 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-03 06:19:03,820 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-03 06:19:03,820 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-03 06:19:03,820 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-03 06:19:03,822 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-03 06:19:03,851 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 06:19:03,851 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 06:19:03,852 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 06:19:03,873 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 06:19:03,876 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 06:19:03,876 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 06:19:03,966 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 06:19:03,967 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 06:19:03,969 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 06:19:03,972 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 06:19:03,973 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-03 06:19:05,241 INFO L451 ceAbstractionStarter]: At program point select_helpersFINAL(lines 546 552) the Hoare annotation is: true [2018-12-03 06:19:05,241 INFO L448 ceAbstractionStarter]: For program point select_helpersEXIT(lines 546 552) no Hoare annotation was computed. [2018-12-03 06:19:05,241 INFO L448 ceAbstractionStarter]: For program point valid_productEXIT(lines 553 561) no Hoare annotation was computed. [2018-12-03 06:19:05,241 INFO L451 ceAbstractionStarter]: At program point valid_productENTRY(lines 553 561) the Hoare annotation is: true [2018-12-03 06:19:05,241 INFO L448 ceAbstractionStarter]: For program point valid_productFINAL(lines 553 561) no Hoare annotation was computed. [2018-12-03 06:19:05,241 INFO L444 ceAbstractionStarter]: At program point L577(line 577) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (< ~waterLevel~0 2) .cse0) (or (not (= 0 ~pumpRunning~0)) .cse0 (not (= ~waterLevel~0 1))))) [2018-12-03 06:19:05,241 INFO L448 ceAbstractionStarter]: For program point L575(lines 575 581) no Hoare annotation was computed. [2018-12-03 06:19:05,241 INFO L451 ceAbstractionStarter]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 563 587) the Hoare annotation is: true [2018-12-03 06:19:05,241 INFO L444 ceAbstractionStarter]: At program point L573(line 573) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (< ~waterLevel~0 2) .cse0) (or (not (= 0 ~pumpRunning~0)) .cse0 (not (= ~waterLevel~0 1))))) [2018-12-03 06:19:05,241 INFO L448 ceAbstractionStarter]: For program point L573-1(line 573) no Hoare annotation was computed. [2018-12-03 06:19:05,241 INFO L448 ceAbstractionStarter]: For program point L571(lines 571 584) no Hoare annotation was computed. [2018-12-03 06:19:05,242 INFO L448 ceAbstractionStarter]: For program point L571-1(lines 563 587) no Hoare annotation was computed. [2018-12-03 06:19:05,242 INFO L451 ceAbstractionStarter]: At program point L569(line 569) the Hoare annotation is: true [2018-12-03 06:19:05,242 INFO L448 ceAbstractionStarter]: For program point L569-1(line 569) no Hoare annotation was computed. [2018-12-03 06:19:05,242 INFO L448 ceAbstractionStarter]: For program point __utac_acc__Specification4_spec__1EXIT(lines 563 587) no Hoare annotation was computed. [2018-12-03 06:19:05,242 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 238 260) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-12-03 06:19:05,242 INFO L444 ceAbstractionStarter]: At program point L250(line 250) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (and (= main_~tmp~0 ~waterLevel~0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~waterLevel~0)| 1))) [2018-12-03 06:19:05,242 INFO L444 ceAbstractionStarter]: At program point L250-1(line 250) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (and (= main_~tmp~0 ~waterLevel~0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~waterLevel~0)| 1))) [2018-12-03 06:19:05,242 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 238 260) no Hoare annotation was computed. [2018-12-03 06:19:05,242 INFO L448 ceAbstractionStarter]: For program point L248(lines 248 255) no Hoare annotation was computed. [2018-12-03 06:19:05,242 INFO L448 ceAbstractionStarter]: For program point L248-1(lines 248 255) no Hoare annotation was computed. [2018-12-03 06:19:05,242 INFO L448 ceAbstractionStarter]: For program point L246(line 246) no Hoare annotation was computed. [2018-12-03 06:19:05,242 INFO L444 ceAbstractionStarter]: At program point L245(line 245) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-12-03 06:19:05,242 INFO L444 ceAbstractionStarter]: At program point L244(line 244) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-12-03 06:19:05,242 INFO L444 ceAbstractionStarter]: At program point L244-1(line 244) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-12-03 06:19:05,242 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 238 260) no Hoare annotation was computed. [2018-12-03 06:19:05,242 INFO L448 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 379 387) no Hoare annotation was computed. [2018-12-03 06:19:05,242 INFO L451 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 379 387) the Hoare annotation is: true [2018-12-03 06:19:05,242 INFO L448 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 379 387) no Hoare annotation was computed. [2018-12-03 06:19:05,242 INFO L448 ceAbstractionStarter]: For program point L450-1(line 450) no Hoare annotation was computed. [2018-12-03 06:19:05,243 INFO L451 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 443 461) the Hoare annotation is: true [2018-12-03 06:19:05,243 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 443 461) no Hoare annotation was computed. [2018-12-03 06:19:05,243 INFO L448 ceAbstractionStarter]: For program point L452(lines 452 456) no Hoare annotation was computed. [2018-12-03 06:19:05,243 INFO L451 ceAbstractionStarter]: At program point L450(line 450) the Hoare annotation is: true [2018-12-03 06:19:05,243 INFO L448 ceAbstractionStarter]: For program point L452-2(lines 452 456) no Hoare annotation was computed. [2018-12-03 06:19:05,243 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 443 461) no Hoare annotation was computed. [2018-12-03 06:19:05,243 INFO L448 ceAbstractionStarter]: For program point select_featuresEXIT(lines 539 545) no Hoare annotation was computed. [2018-12-03 06:19:05,243 INFO L451 ceAbstractionStarter]: At program point select_featuresFINAL(lines 539 545) the Hoare annotation is: true [2018-12-03 06:19:05,243 INFO L444 ceAbstractionStarter]: At program point runTestENTRY(lines 225 234) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-12-03 06:19:05,243 INFO L448 ceAbstractionStarter]: For program point runTestEXIT(lines 225 234) no Hoare annotation was computed. [2018-12-03 06:19:05,243 INFO L448 ceAbstractionStarter]: For program point runTestFINAL(lines 225 234) no Hoare annotation was computed. [2018-12-03 06:19:05,243 INFO L444 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 360 367) the Hoare annotation is: (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 1) (= |old(~pumpRunning~0)| 0) (not (= ~systemActive~0 1))) [2018-12-03 06:19:05,243 INFO L448 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 360 367) no Hoare annotation was computed. [2018-12-03 06:19:05,243 INFO L448 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 360 367) no Hoare annotation was computed. [2018-12-03 06:19:05,243 INFO L444 ceAbstractionStarter]: At program point L346(line 346) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1))) (.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (or (< ~waterLevel~0 2) .cse0) .cse1) (or (< ~waterLevel~0 1) (= |old(~pumpRunning~0)| 0) .cse0) (or .cse0 (not (= ~waterLevel~0 1)) .cse1))) [2018-12-03 06:19:05,243 INFO L448 ceAbstractionStarter]: For program point L346-1(lines 327 351) no Hoare annotation was computed. [2018-12-03 06:19:05,243 INFO L448 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 327 351) no Hoare annotation was computed. [2018-12-03 06:19:05,243 INFO L444 ceAbstractionStarter]: At program point L341(line 341) the Hoare annotation is: (or (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-12-03 06:19:05,243 INFO L444 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 327 351) the Hoare annotation is: (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-12-03 06:19:05,244 INFO L444 ceAbstractionStarter]: At program point L337(line 337) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (not (= ~systemActive~0 1)))) (and (or (and (<= 1 processEnvironment_~tmp~2) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (< ~waterLevel~0 1) .cse0) (or .cse1 (< ~waterLevel~0 2) .cse0) (or .cse1 .cse0 (not (= ~waterLevel~0 1))))) [2018-12-03 06:19:05,244 INFO L448 ceAbstractionStarter]: For program point L335(lines 335 343) no Hoare annotation was computed. [2018-12-03 06:19:05,244 INFO L444 ceAbstractionStarter]: At program point L333(line 333) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (< ~waterLevel~0 2) .cse1) (or .cse0 .cse1 (not (= ~waterLevel~0 1))) (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 1) .cse1))) [2018-12-03 06:19:05,244 INFO L448 ceAbstractionStarter]: For program point L333-1(line 333) no Hoare annotation was computed. [2018-12-03 06:19:05,244 INFO L448 ceAbstractionStarter]: For program point L331(lines 331 348) no Hoare annotation was computed. [2018-12-03 06:19:05,244 INFO L448 ceAbstractionStarter]: For program point L140(lines 140 146) no Hoare annotation was computed. [2018-12-03 06:19:05,244 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 136 149) no Hoare annotation was computed. [2018-12-03 06:19:05,244 INFO L451 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 136 149) the Hoare annotation is: true [2018-12-03 06:19:05,244 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 136 149) no Hoare annotation was computed. [2018-12-03 06:19:05,244 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 293 299) no Hoare annotation was computed. [2018-12-03 06:19:05,244 INFO L451 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 293 299) the Hoare annotation is: true [2018-12-03 06:19:05,244 INFO L444 ceAbstractionStarter]: At program point testENTRY(lines 463 526) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-12-03 06:19:05,244 INFO L448 ceAbstractionStarter]: For program point L475(lines 475 479) no Hoare annotation was computed. [2018-12-03 06:19:05,244 INFO L448 ceAbstractionStarter]: For program point testFINAL(lines 463 526) no Hoare annotation was computed. [2018-12-03 06:19:05,244 INFO L444 ceAbstractionStarter]: At program point L519(lines 472 520) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1))) [2018-12-03 06:19:05,244 INFO L448 ceAbstractionStarter]: For program point L509(lines 509 513) no Hoare annotation was computed. [2018-12-03 06:19:05,244 INFO L444 ceAbstractionStarter]: At program point L509-2(lines 503 514) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse0) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)))) [2018-12-03 06:19:05,244 INFO L448 ceAbstractionStarter]: For program point L474(lines 473 518) no Hoare annotation was computed. [2018-12-03 06:19:05,244 INFO L448 ceAbstractionStarter]: For program point L503(lines 503 514) no Hoare annotation was computed. [2018-12-03 06:19:05,244 INFO L444 ceAbstractionStarter]: At program point L495(line 495) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse0) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)))) [2018-12-03 06:19:05,244 INFO L448 ceAbstractionStarter]: For program point L493(lines 493 499) no Hoare annotation was computed. [2018-12-03 06:19:05,245 INFO L448 ceAbstractionStarter]: For program point L493-1(lines 493 499) no Hoare annotation was computed. [2018-12-03 06:19:05,245 INFO L444 ceAbstractionStarter]: At program point L485(line 485) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse0) (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)))) [2018-12-03 06:19:05,245 INFO L444 ceAbstractionStarter]: At program point L516(lines 473 518) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse0) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)))) [2018-12-03 06:19:05,245 INFO L448 ceAbstractionStarter]: For program point L483(lines 483 489) no Hoare annotation was computed. [2018-12-03 06:19:05,245 INFO L448 ceAbstractionStarter]: For program point testEXIT(lines 463 526) no Hoare annotation was computed. [2018-12-03 06:19:05,245 INFO L448 ceAbstractionStarter]: For program point L483-1(lines 483 489) no Hoare annotation was computed. [2018-12-03 06:19:05,245 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 150 158) no Hoare annotation was computed. [2018-12-03 06:19:05,245 INFO L451 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 150 158) the Hoare annotation is: true [2018-12-03 06:19:05,245 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 150 158) no Hoare annotation was computed. [2018-12-03 06:19:05,245 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-03 06:19:05,245 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)) [2018-12-03 06:19:05,245 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-03 06:19:05,245 INFO L448 ceAbstractionStarter]: For program point activatePumpFINAL(lines 352 359) no Hoare annotation was computed. [2018-12-03 06:19:05,245 INFO L448 ceAbstractionStarter]: For program point activatePumpEXIT(lines 352 359) no Hoare annotation was computed. [2018-12-03 06:19:05,245 INFO L444 ceAbstractionStarter]: At program point activatePumpENTRY(lines 352 359) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 2) (not (= ~systemActive~0 1))) [2018-12-03 06:19:05,245 INFO L448 ceAbstractionStarter]: For program point L433(lines 433 437) no Hoare annotation was computed. [2018-12-03 06:19:05,245 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 424 442) no Hoare annotation was computed. [2018-12-03 06:19:05,245 INFO L451 ceAbstractionStarter]: At program point L431(line 431) the Hoare annotation is: true [2018-12-03 06:19:05,245 INFO L448 ceAbstractionStarter]: For program point L433-2(lines 433 437) no Hoare annotation was computed. [2018-12-03 06:19:05,245 INFO L448 ceAbstractionStarter]: For program point L431-1(line 431) no Hoare annotation was computed. [2018-12-03 06:19:05,246 INFO L451 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 424 442) the Hoare annotation is: true [2018-12-03 06:19:05,246 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 424 442) no Hoare annotation was computed. [2018-12-03 06:19:05,246 INFO L451 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 127 135) the Hoare annotation is: true [2018-12-03 06:19:05,246 INFO L448 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 127 135) no Hoare annotation was computed. [2018-12-03 06:19:05,246 INFO L448 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 127 135) no Hoare annotation was computed. [2018-12-03 06:19:05,246 INFO L451 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 83 94) the Hoare annotation is: true [2018-12-03 06:19:05,246 INFO L448 ceAbstractionStarter]: For program point L87-1(lines 83 94) no Hoare annotation was computed. [2018-12-03 06:19:05,246 INFO L448 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 83 94) no Hoare annotation was computed. [2018-12-03 06:19:05,246 INFO L444 ceAbstractionStarter]: At program point L282(line 282) the Hoare annotation is: (let ((.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (let ((.cse1 (and (= ~waterLevel~0 |old(~waterLevel~0)|) .cse2)) (.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1) (or .cse1 (and (not (= |old(~pumpRunning~0)| 0)) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse2) (or (< |old(~waterLevel~0)| 2) .cse0))))) [2018-12-03 06:19:05,246 INFO L444 ceAbstractionStarter]: At program point L280(lines 280 286) the Hoare annotation is: (let ((.cse1 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (or .cse1 (and (not (= |old(~pumpRunning~0)| 0)) (= 0 ~pumpRunning~0) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) (or (< |old(~waterLevel~0)| 2) .cse0)))) [2018-12-03 06:19:05,246 INFO L444 ceAbstractionStarter]: At program point L275(line 275) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (< |old(~waterLevel~0)| 2)) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse2 (not (= |old(~waterLevel~0)| 1))) (or (or .cse1 .cse2) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0))))) [2018-12-03 06:19:05,246 INFO L448 ceAbstractionStarter]: For program point L273(lines 272 291) no Hoare annotation was computed. [2018-12-03 06:19:05,246 INFO L444 ceAbstractionStarter]: At program point timeShiftENTRY(lines 269 292) the Hoare annotation is: (let ((.cse1 (not (= ~systemActive~0 1))) (.cse0 (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)))) (and (or .cse0 (or (< |old(~waterLevel~0)| 2) .cse1)) (or (not (= 0 |old(~pumpRunning~0)|)) .cse1 (not (= |old(~waterLevel~0)| 1)) .cse0))) [2018-12-03 06:19:05,246 INFO L448 ceAbstractionStarter]: For program point timeShiftEXIT(lines 269 292) no Hoare annotation was computed. [2018-12-03 06:19:05,246 INFO L448 ceAbstractionStarter]: For program point timeShiftFINAL(lines 269 292) no Hoare annotation was computed. [2018-12-03 06:19:05,246 INFO L448 ceAbstractionStarter]: For program point cleanupEXIT(lines 162 191) no Hoare annotation was computed. [2018-12-03 06:19:05,247 INFO L451 ceAbstractionStarter]: At program point cleanupENTRY(lines 162 191) the Hoare annotation is: true [2018-12-03 06:19:05,247 INFO L451 ceAbstractionStarter]: At program point L187(lines 162 191) the Hoare annotation is: true [2018-12-03 06:19:05,247 INFO L448 ceAbstractionStarter]: For program point L183(line 183) no Hoare annotation was computed. [2018-12-03 06:19:05,247 INFO L448 ceAbstractionStarter]: For program point L176(lines 176 180) no Hoare annotation was computed. [2018-12-03 06:19:05,247 INFO L451 ceAbstractionStarter]: At program point L176-1(lines 176 180) the Hoare annotation is: true [2018-12-03 06:19:05,247 INFO L448 ceAbstractionStarter]: For program point L173(line 173) no Hoare annotation was computed. [2018-12-03 06:19:05,247 INFO L451 ceAbstractionStarter]: At program point L172-2(lines 172 186) the Hoare annotation is: true [2018-12-03 06:19:05,247 INFO L451 ceAbstractionStarter]: At program point L168(line 168) the Hoare annotation is: true [2018-12-03 06:19:05,247 INFO L448 ceAbstractionStarter]: For program point L168-1(line 168) no Hoare annotation was computed. [2018-12-03 06:19:05,247 INFO L444 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 59 70) the Hoare annotation is: (or (or (= ~pumpRunning~0 0) (< |old(~waterLevel~0)| 2) (not (= ~systemActive~0 1))) (= ~waterLevel~0 |old(~waterLevel~0)|)) [2018-12-03 06:19:05,247 INFO L448 ceAbstractionStarter]: For program point L63-1(lines 59 70) no Hoare annotation was computed. [2018-12-03 06:19:05,247 INFO L448 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 59 70) no Hoare annotation was computed. [2018-12-03 06:19:05,247 INFO L448 ceAbstractionStarter]: For program point setupEXIT(lines 217 223) no Hoare annotation was computed. [2018-12-03 06:19:05,248 INFO L451 ceAbstractionStarter]: At program point setupFINAL(lines 217 223) the Hoare annotation is: true [2018-12-03 06:19:05,248 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-03 06:19:05,248 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~pumpRunning~0 0) (= ~systemActive~0 1)) [2018-12-03 06:19:05,248 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-03 06:19:05,248 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-03 06:19:05,248 INFO L444 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 301 325) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (or .cse0 (< ~waterLevel~0 2) .cse1) .cse2) (or .cse0 .cse1 (not (= ~waterLevel~0 1)) .cse2))) [2018-12-03 06:19:05,248 INFO L444 ceAbstractionStarter]: At program point L320(line 320) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (< ~waterLevel~0 2) .cse1) (or .cse0 .cse1 (not (= ~waterLevel~0 1))))) [2018-12-03 06:19:05,248 INFO L448 ceAbstractionStarter]: For program point L320-1(lines 301 325) no Hoare annotation was computed. [2018-12-03 06:19:05,248 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 301 325) no Hoare annotation was computed. [2018-12-03 06:19:05,248 INFO L444 ceAbstractionStarter]: At program point L315(line 315) the Hoare annotation is: (or (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-12-03 06:19:05,248 INFO L444 ceAbstractionStarter]: At program point L311(line 311) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1)))) (and (or (or .cse0 (< ~waterLevel~0 2) .cse1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (or .cse0 .cse1 (not (= ~waterLevel~0 1))))) [2018-12-03 06:19:05,249 INFO L448 ceAbstractionStarter]: For program point L309(lines 309 317) no Hoare annotation was computed. [2018-12-03 06:19:05,249 INFO L444 ceAbstractionStarter]: At program point L307(line 307) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (or .cse0 (< ~waterLevel~0 2) .cse1) .cse2) (or .cse0 .cse1 (not (= ~waterLevel~0 1)) .cse2))) [2018-12-03 06:19:05,249 INFO L448 ceAbstractionStarter]: For program point L307-1(line 307) no Hoare annotation was computed. [2018-12-03 06:19:05,249 INFO L448 ceAbstractionStarter]: For program point L305(lines 305 322) no Hoare annotation was computed. [2018-12-03 06:19:05,249 INFO L448 ceAbstractionStarter]: For program point waterRiseEXIT(lines 71 82) no Hoare annotation was computed. [2018-12-03 06:19:05,249 INFO L448 ceAbstractionStarter]: For program point L75-1(lines 71 82) no Hoare annotation was computed. [2018-12-03 06:19:05,249 INFO L444 ceAbstractionStarter]: At program point waterRiseENTRY(lines 71 82) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 (< |old(~waterLevel~0)| 2)) (or (< |old(~waterLevel~0)| 1) .cse0 (or (not (= 0 ~pumpRunning~0)) .cse1)))) [2018-12-03 06:19:05,249 INFO L448 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2018-12-03 06:19:05,249 INFO L448 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 40 47) no Hoare annotation was computed. [2018-12-03 06:19:05,249 INFO L451 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 40 47) the Hoare annotation is: true [2018-12-03 06:19:05,249 INFO L448 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 40 47) no Hoare annotation was computed. [2018-12-03 06:19:05,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 06:19:05 BoogieIcfgContainer [2018-12-03 06:19:05,258 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 06:19:05,258 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-03 06:19:05,258 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-03 06:19:05,259 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-03 06:19:05,259 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 06:18:53" (3/4) ... [2018-12-03 06:19:05,262 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-03 06:19:05,266 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-12-03 06:19:05,266 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-12-03 06:19:05,266 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification4_spec__1 [2018-12-03 06:19:05,266 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-03 06:19:05,266 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-12-03 06:19:05,266 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterLevel [2018-12-03 06:19:05,266 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-12-03 06:19:05,266 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-12-03 06:19:05,266 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-12-03 06:19:05,266 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-12-03 06:19:05,266 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-12-03 06:19:05,266 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-12-03 06:19:05,266 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-12-03 06:19:05,266 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterSensorDry [2018-12-03 06:19:05,266 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-03 06:19:05,267 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-12-03 06:19:05,267 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-12-03 06:19:05,267 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure getWaterLevel [2018-12-03 06:19:05,267 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-12-03 06:19:05,267 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-12-03 06:19:05,267 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-12-03 06:19:05,267 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-12-03 06:19:05,267 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-12-03 06:19:05,267 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2018-12-03 06:19:05,267 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-12-03 06:19:05,267 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-12-03 06:19:05,272 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 46 nodes and edges [2018-12-03 06:19:05,272 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2018-12-03 06:19:05,273 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-12-03 06:19:05,273 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-03 06:19:05,273 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-03 06:19:05,273 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-03 06:19:05,291 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((0 == pumpRunning && 1 <= waterLevel) && splverifierCounter == 0) || !(0 == \old(pumpRunning))) || (2 <= waterLevel && splverifierCounter == 0)) || !(systemActive == 1)) || !(\old(waterLevel) == 1) [2018-12-03 06:19:05,291 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(0 == \old(pumpRunning)) || !(systemActive == 1)) || !(\old(waterLevel) == 1) [2018-12-03 06:19:05,319 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_71d1833c-1ced-466c-92b8-49bfeb7c61e0/bin-2019/utaipan/witness.graphml [2018-12-03 06:19:05,320 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-03 06:19:05,320 INFO L168 Benchmark]: Toolchain (without parser) took 12288.56 ms. Allocated memory was 1.0 GB in the beginning and 1.8 GB in the end (delta: 761.8 MB). Free memory was 948.1 MB in the beginning and 1.5 GB in the end (delta: -502.9 MB). Peak memory consumption was 258.9 MB. Max. memory is 11.5 GB. [2018-12-03 06:19:05,321 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 06:19:05,321 INFO L168 Benchmark]: CACSL2BoogieTranslator took 326.01 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 82.8 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -116.0 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2018-12-03 06:19:05,322 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.28 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. [2018-12-03 06:19:05,322 INFO L168 Benchmark]: Boogie Preprocessor took 23.52 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. [2018-12-03 06:19:05,322 INFO L168 Benchmark]: RCFGBuilder took 353.57 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: 52.7 MB). Peak memory consumption was 52.7 MB. Max. memory is 11.5 GB. [2018-12-03 06:19:05,322 INFO L168 Benchmark]: TraceAbstraction took 11501.07 ms. Allocated memory was 1.1 GB in the beginning and 1.8 GB in the end (delta: 679.0 MB). Free memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: -439.8 MB). Peak memory consumption was 1.0 GB. Max. memory is 11.5 GB. [2018-12-03 06:19:05,323 INFO L168 Benchmark]: Witness Printer took 61.28 ms. Allocated memory is still 1.8 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 11.5 GB. [2018-12-03 06:19:05,323 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 326.01 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 82.8 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -116.0 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.28 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 23.52 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 353.57 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: 52.7 MB). Peak memory consumption was 52.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 11501.07 ms. Allocated memory was 1.1 GB in the beginning and 1.8 GB in the end (delta: 679.0 MB). Free memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: -439.8 MB). Peak memory consumption was 1.0 GB. Max. memory is 11.5 GB. * Witness Printer took 61.28 ms. Allocated memory is still 1.8 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: 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: 162]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 473]: Loop Invariant Derived loop invariant: (((((0 == pumpRunning && 1 <= waterLevel) && splverifierCounter == 0) || !(0 == \old(pumpRunning))) || (2 <= waterLevel && splverifierCounter == 0)) || !(systemActive == 1)) || !(\old(waterLevel) == 1) - InvariantResult [Line: 472]: Loop Invariant Derived loop invariant: (!(0 == \old(pumpRunning)) || !(systemActive == 1)) || !(\old(waterLevel) == 1) - InvariantResult [Line: 172]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 27 procedures, 141 locations, 1 error locations. SAFE Result, 11.4s OverallTime, 13 OverallIterations, 3 TraceHistogramMax, 3.8s AutomataDifference, 0.0s DeadEndRemovalTime, 1.4s HoareAnnotationTime, HoareTripleCheckerStatistics: 2074 SDtfs, 2117 SDslu, 6105 SDs, 0 SdLazy, 3808 SolverSat, 998 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.1s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 1557 GetRequests, 1394 SyntacticMatches, 24 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=932occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 3.2s AbstIntTime, 5 AbstIntIterations, 1 AbstIntStrong, 0.9983756934627054 AbsIntWeakeningRatio, 0.9037037037037037 AbsIntAvgWeakeningVarsNumRemoved, 55.20740740740741 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 13 MinimizatonAttempts, 271 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 58 LocationsWithAnnotation, 1624 PreInvPairs, 1684 NumberOfFragments, 929 HoareAnnotationTreeSize, 1624 FomulaSimplifications, 3139 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 58 FomulaSimplificationsInter, 7173 FormulaSimplificationTreeSizeReductionInter, 1.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 2146 NumberOfCodeBlocks, 2146 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 2763 ConstructedInterpolants, 0 QuantifiedInterpolants, 587887 SizeOfPredicates, 20 NumberOfNonLiveVariables, 3466 ConjunctsInSsa, 54 ConjunctsInUnsatCore, 21 InterpolantComputations, 11 PerfectInterpolantSequences, 938/1020 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...