./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product55_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_01ea605f-885b-4d7f-9d14-7b6f89712bb7/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_01ea605f-885b-4d7f-9d14-7b6f89712bb7/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_01ea605f-885b-4d7f-9d14-7b6f89712bb7/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_01ea605f-885b-4d7f-9d14-7b6f89712bb7/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product55_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_01ea605f-885b-4d7f-9d14-7b6f89712bb7/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_01ea605f-885b-4d7f-9d14-7b6f89712bb7/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 9385f61fe99e17c8ecdfdd2ac56623ca621310c3 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 15:16:37,633 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 15:16:37,634 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 15:16:37,640 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 15:16:37,640 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 15:16:37,641 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 15:16:37,641 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 15:16:37,642 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 15:16:37,643 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 15:16:37,643 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 15:16:37,644 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 15:16:37,644 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 15:16:37,644 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 15:16:37,645 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 15:16:37,645 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 15:16:37,646 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 15:16:37,646 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 15:16:37,647 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 15:16:37,648 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 15:16:37,649 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 15:16:37,650 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 15:16:37,650 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 15:16:37,651 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 15:16:37,651 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 15:16:37,652 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 15:16:37,652 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 15:16:37,653 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 15:16:37,653 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 15:16:37,653 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 15:16:37,654 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 15:16:37,654 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 15:16:37,654 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 15:16:37,655 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 15:16:37,655 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 15:16:37,655 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 15:16:37,656 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 15:16:37,656 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_01ea605f-885b-4d7f-9d14-7b6f89712bb7/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-02 15:16:37,663 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 15:16:37,663 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 15:16:37,664 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 15:16:37,664 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 15:16:37,664 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 15:16:37,664 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 15:16:37,664 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 15:16:37,664 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-02 15:16:37,665 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 15:16:37,665 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 15:16:37,665 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-02 15:16:37,665 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-02 15:16:37,665 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 15:16:37,665 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 15:16:37,666 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 15:16:37,666 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 15:16:37,666 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 15:16:37,666 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 15:16:37,666 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 15:16:37,666 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 15:16:37,666 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 15:16:37,666 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 15:16:37,667 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 15:16:37,667 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 15:16:37,667 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 15:16:37,667 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 15:16:37,667 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 15:16:37,667 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 15:16:37,667 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 15:16:37,668 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 15:16:37,668 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 15:16:37,668 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 15:16:37,668 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-02 15:16:37,668 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 15:16:37,668 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 15:16:37,668 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-02 15:16:37,668 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_01ea605f-885b-4d7f-9d14-7b6f89712bb7/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 -> 9385f61fe99e17c8ecdfdd2ac56623ca621310c3 [2018-12-02 15:16:37,686 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 15:16:37,693 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 15:16:37,695 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 15:16:37,695 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 15:16:37,696 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 15:16:37,696 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_01ea605f-885b-4d7f-9d14-7b6f89712bb7/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product55_true-unreach-call_false-termination.cil.c [2018-12-02 15:16:37,730 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_01ea605f-885b-4d7f-9d14-7b6f89712bb7/bin-2019/utaipan/data/7e7fb7a89/d30c998828b741a28e8cdaefac8e09a2/FLAG2a6be1878 [2018-12-02 15:16:38,032 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 15:16:38,032 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_01ea605f-885b-4d7f-9d14-7b6f89712bb7/sv-benchmarks/c/product-lines/minepump_spec4_product55_true-unreach-call_false-termination.cil.c [2018-12-02 15:16:38,039 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_01ea605f-885b-4d7f-9d14-7b6f89712bb7/bin-2019/utaipan/data/7e7fb7a89/d30c998828b741a28e8cdaefac8e09a2/FLAG2a6be1878 [2018-12-02 15:16:38,455 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_01ea605f-885b-4d7f-9d14-7b6f89712bb7/bin-2019/utaipan/data/7e7fb7a89/d30c998828b741a28e8cdaefac8e09a2 [2018-12-02 15:16:38,457 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 15:16:38,458 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 15:16:38,459 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 15:16:38,459 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 15:16:38,461 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 15:16:38,462 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:16:38" (1/1) ... [2018-12-02 15:16:38,464 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5243922c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:16:38, skipping insertion in model container [2018-12-02 15:16:38,464 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:16:38" (1/1) ... [2018-12-02 15:16:38,468 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 15:16:38,488 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 15:16:38,653 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 15:16:38,690 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 15:16:38,730 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 15:16:38,746 INFO L195 MainTranslator]: Completed translation [2018-12-02 15:16:38,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:16:38 WrapperNode [2018-12-02 15:16:38,746 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 15:16:38,747 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 15:16:38,747 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 15:16:38,747 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 15:16:38,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:16:38" (1/1) ... [2018-12-02 15:16:38,762 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:16:38" (1/1) ... [2018-12-02 15:16:38,767 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 15:16:38,767 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 15:16:38,767 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 15:16:38,767 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 15:16:38,774 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:16:38" (1/1) ... [2018-12-02 15:16:38,774 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:16:38" (1/1) ... [2018-12-02 15:16:38,776 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:16:38" (1/1) ... [2018-12-02 15:16:38,776 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:16:38" (1/1) ... [2018-12-02 15:16:38,782 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:16:38" (1/1) ... [2018-12-02 15:16:38,786 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:16:38" (1/1) ... [2018-12-02 15:16:38,788 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:16:38" (1/1) ... [2018-12-02 15:16:38,790 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 15:16:38,790 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 15:16:38,790 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 15:16:38,790 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 15:16:38,791 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:16:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_01ea605f-885b-4d7f-9d14-7b6f89712bb7/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 [2018-12-02 15:16:38,830 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-02 15:16:38,830 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-02 15:16:38,831 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2018-12-02 15:16:38,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2018-12-02 15:16:38,831 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 15:16:38,831 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 15:16:38,831 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2018-12-02 15:16:38,831 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2018-12-02 15:16:38,831 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-12-02 15:16:38,832 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-12-02 15:16:38,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 15:16:38,832 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-02 15:16:38,832 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-02 15:16:38,832 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-02 15:16:38,832 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-02 15:16:38,832 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-02 15:16:38,832 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-02 15:16:38,832 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-02 15:16:38,833 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-02 15:16:38,833 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-02 15:16:38,833 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-02 15:16:38,833 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-12-02 15:16:38,833 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-12-02 15:16:38,833 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-02 15:16:38,833 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-02 15:16:38,833 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-12-02 15:16:38,833 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-12-02 15:16:38,833 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-02 15:16:38,834 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-02 15:16:38,834 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-02 15:16:38,834 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-02 15:16:38,834 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-02 15:16:38,834 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-02 15:16:38,834 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-02 15:16:38,834 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-02 15:16:38,834 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-02 15:16:38,834 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-02 15:16:38,834 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-12-02 15:16:38,835 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-12-02 15:16:38,835 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-02 15:16:38,835 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-02 15:16:38,835 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-02 15:16:38,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-02 15:16:38,835 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2018-12-02 15:16:38,835 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2018-12-02 15:16:38,835 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-02 15:16:38,835 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-02 15:16:38,836 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-02 15:16:38,836 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-02 15:16:38,836 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-02 15:16:38,836 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-02 15:16:38,836 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-12-02 15:16:38,836 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-12-02 15:16:38,836 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-02 15:16:38,836 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-02 15:16:38,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-02 15:16:38,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 15:16:38,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 15:16:38,837 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-02 15:16:38,837 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-02 15:16:38,837 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-02 15:16:38,837 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-02 15:16:38,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 15:16:38,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 15:16:39,164 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 15:16:39,164 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-02 15:16:39,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:16:39 BoogieIcfgContainer [2018-12-02 15:16:39,165 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 15:16:39,166 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 15:16:39,166 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 15:16:39,168 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 15:16:39,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:16:38" (1/3) ... [2018-12-02 15:16:39,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b4798f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:16:39, skipping insertion in model container [2018-12-02 15:16:39,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:16:38" (2/3) ... [2018-12-02 15:16:39,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b4798f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:16:39, skipping insertion in model container [2018-12-02 15:16:39,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:16:39" (3/3) ... [2018-12-02 15:16:39,171 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product55_true-unreach-call_false-termination.cil.c [2018-12-02 15:16:39,179 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 15:16:39,186 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 15:16:39,197 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 15:16:39,216 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 15:16:39,216 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 15:16:39,216 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 15:16:39,216 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 15:16:39,216 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 15:16:39,216 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 15:16:39,216 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 15:16:39,216 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 15:16:39,230 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states. [2018-12-02 15:16:39,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-02 15:16:39,237 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 15:16:39,238 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] [2018-12-02 15:16:39,240 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 15:16:39,244 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:16:39,244 INFO L82 PathProgramCache]: Analyzing trace with hash -1798098618, now seen corresponding path program 1 times [2018-12-02 15:16:39,245 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 15:16:39,277 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:16:39,277 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:16:39,277 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:16:39,277 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 15:16:39,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:16:39,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:16:39,414 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 15:16:39,414 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 15:16:39,414 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 15:16:39,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-02 15:16:39,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 15:16:39,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 15:16:39,426 INFO L87 Difference]: Start difference. First operand 165 states. Second operand 2 states. [2018-12-02 15:16:39,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 15:16:39,451 INFO L93 Difference]: Finished difference Result 304 states and 377 transitions. [2018-12-02 15:16:39,451 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 15:16:39,452 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-02 15:16:39,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 15:16:39,458 INFO L225 Difference]: With dead ends: 304 [2018-12-02 15:16:39,459 INFO L226 Difference]: Without dead ends: 152 [2018-12-02 15:16:39,461 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 [2018-12-02 15:16:39,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2018-12-02 15:16:39,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2018-12-02 15:16:39,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2018-12-02 15:16:39,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 180 transitions. [2018-12-02 15:16:39,492 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 180 transitions. Word has length 46 [2018-12-02 15:16:39,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 15:16:39,492 INFO L480 AbstractCegarLoop]: Abstraction has 152 states and 180 transitions. [2018-12-02 15:16:39,493 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-02 15:16:39,493 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 180 transitions. [2018-12-02 15:16:39,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-02 15:16:39,494 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 15:16:39,494 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] [2018-12-02 15:16:39,495 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 15:16:39,495 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:16:39,495 INFO L82 PathProgramCache]: Analyzing trace with hash -86368443, now seen corresponding path program 1 times [2018-12-02 15:16:39,495 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 15:16:39,495 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:16:39,496 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:16:39,496 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:16:39,496 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 15:16:39,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:16:39,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:16:39,544 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 15:16:39,544 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 15:16:39,545 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 15:16:39,545 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 15:16:39,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 15:16:39,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 15:16:39,546 INFO L87 Difference]: Start difference. First operand 152 states and 180 transitions. Second operand 3 states. [2018-12-02 15:16:39,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 15:16:39,560 INFO L93 Difference]: Finished difference Result 247 states and 291 transitions. [2018-12-02 15:16:39,560 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 15:16:39,560 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-02 15:16:39,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 15:16:39,561 INFO L225 Difference]: With dead ends: 247 [2018-12-02 15:16:39,561 INFO L226 Difference]: Without dead ends: 143 [2018-12-02 15:16:39,562 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 [2018-12-02 15:16:39,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2018-12-02 15:16:39,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2018-12-02 15:16:39,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2018-12-02 15:16:39,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 168 transitions. [2018-12-02 15:16:39,570 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 168 transitions. Word has length 47 [2018-12-02 15:16:39,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 15:16:39,571 INFO L480 AbstractCegarLoop]: Abstraction has 143 states and 168 transitions. [2018-12-02 15:16:39,571 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 15:16:39,571 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 168 transitions. [2018-12-02 15:16:39,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-12-02 15:16:39,572 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 15:16:39,572 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] [2018-12-02 15:16:39,572 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 15:16:39,572 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:16:39,573 INFO L82 PathProgramCache]: Analyzing trace with hash 458826405, now seen corresponding path program 1 times [2018-12-02 15:16:39,573 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 15:16:39,573 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:16:39,573 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:16:39,573 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:16:39,574 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 15:16:39,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:16:39,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:16:39,644 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 15:16:39,644 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 15:16:39,644 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 15:16:39,644 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 15:16:39,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 15:16:39,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-02 15:16:39,645 INFO L87 Difference]: Start difference. First operand 143 states and 168 transitions. Second operand 7 states. [2018-12-02 15:16:39,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 15:16:39,920 INFO L93 Difference]: Finished difference Result 431 states and 522 transitions. [2018-12-02 15:16:39,920 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 15:16:39,920 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2018-12-02 15:16:39,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 15:16:39,922 INFO L225 Difference]: With dead ends: 431 [2018-12-02 15:16:39,923 INFO L226 Difference]: Without dead ends: 312 [2018-12-02 15:16:39,923 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-02 15:16:39,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2018-12-02 15:16:39,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 304. [2018-12-02 15:16:39,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2018-12-02 15:16:39,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 368 transitions. [2018-12-02 15:16:39,945 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 368 transitions. Word has length 51 [2018-12-02 15:16:39,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 15:16:39,945 INFO L480 AbstractCegarLoop]: Abstraction has 304 states and 368 transitions. [2018-12-02 15:16:39,945 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 15:16:39,945 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 368 transitions. [2018-12-02 15:16:39,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-12-02 15:16:39,946 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 15:16:39,947 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 15:16:39,947 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 15:16:39,947 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:16:39,947 INFO L82 PathProgramCache]: Analyzing trace with hash 1526064902, now seen corresponding path program 1 times [2018-12-02 15:16:39,947 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 15:16:39,948 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:16:39,948 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:16:39,948 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:16:39,948 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 15:16:39,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:16:40,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:16:40,043 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 15:16:40,044 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-02 15:16:40,044 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 15:16:40,044 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-02 15:16:40,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-02 15:16:40,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-12-02 15:16:40,044 INFO L87 Difference]: Start difference. First operand 304 states and 368 transitions. Second operand 10 states. [2018-12-02 15:16:40,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 15:16:40,364 INFO L93 Difference]: Finished difference Result 1096 states and 1428 transitions. [2018-12-02 15:16:40,364 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-02 15:16:40,364 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 57 [2018-12-02 15:16:40,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 15:16:40,368 INFO L225 Difference]: With dead ends: 1096 [2018-12-02 15:16:40,368 INFO L226 Difference]: Without dead ends: 816 [2018-12-02 15:16:40,369 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 [2018-12-02 15:16:40,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2018-12-02 15:16:40,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 804. [2018-12-02 15:16:40,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 804 states. [2018-12-02 15:16:40,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 1012 transitions. [2018-12-02 15:16:40,421 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 1012 transitions. Word has length 57 [2018-12-02 15:16:40,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 15:16:40,421 INFO L480 AbstractCegarLoop]: Abstraction has 804 states and 1012 transitions. [2018-12-02 15:16:40,422 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-02 15:16:40,422 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 1012 transitions. [2018-12-02 15:16:40,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-12-02 15:16:40,425 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 15:16:40,425 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 15:16:40,425 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 15:16:40,426 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:16:40,426 INFO L82 PathProgramCache]: Analyzing trace with hash 1633146220, now seen corresponding path program 1 times [2018-12-02 15:16:40,426 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 15:16:40,426 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:16:40,427 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:16:40,427 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:16:40,427 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 15:16:40,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:16:40,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:16:40,502 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 15:16:40,502 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-02 15:16:40,502 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 15:16:40,503 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-02 15:16:40,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-02 15:16:40,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-02 15:16:40,503 INFO L87 Difference]: Start difference. First operand 804 states and 1012 transitions. Second operand 4 states. [2018-12-02 15:16:40,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 15:16:40,713 INFO L93 Difference]: Finished difference Result 1972 states and 2707 transitions. [2018-12-02 15:16:40,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-02 15:16:40,714 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 61 [2018-12-02 15:16:40,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 15:16:40,720 INFO L225 Difference]: With dead ends: 1972 [2018-12-02 15:16:40,720 INFO L226 Difference]: Without dead ends: 1192 [2018-12-02 15:16:40,723 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-02 15:16:40,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1192 states. [2018-12-02 15:16:40,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1192 to 1057. [2018-12-02 15:16:40,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1057 states. [2018-12-02 15:16:40,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 1336 transitions. [2018-12-02 15:16:40,788 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 1336 transitions. Word has length 61 [2018-12-02 15:16:40,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 15:16:40,788 INFO L480 AbstractCegarLoop]: Abstraction has 1057 states and 1336 transitions. [2018-12-02 15:16:40,788 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-02 15:16:40,789 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 1336 transitions. [2018-12-02 15:16:40,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-12-02 15:16:40,790 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 15:16:40,791 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 15:16:40,791 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 15:16:40,791 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:16:40,791 INFO L82 PathProgramCache]: Analyzing trace with hash -994037289, now seen corresponding path program 1 times [2018-12-02 15:16:40,791 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 15:16:40,792 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:16:40,792 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:16:40,793 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:16:40,793 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 15:16:40,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:16:40,874 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-12-02 15:16:40,874 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 15:16:40,874 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 15:16:40,875 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 89 with the following transitions: [2018-12-02 15:16:40,876 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [42], [44], [45], [46], [47], [59], [94], [103], [107], [111], [114], [119], [125], [127], [130], [132], [135], [148], [149], [152], [153], [205], [212], [215], [223], [248], [252], [253], [275], [276], [277], [278], [279], [281], [282], [283], [284], [285], [286], [287], [288], [289], [295], [307], [308], [311], [312], [313], [314], [327], [328], [329], [330], [331] [2018-12-02 15:16:40,900 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 15:16:40,901 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 15:16:41,337 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 15:16:41,338 INFO L272 AbstractInterpreter]: Visited 67 different actions 145 times. Merged at 13 different actions 19 times. Never widened. Performed 5356 root evaluator evaluations with a maximum evaluation depth of 3. Performed 5356 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 2 fixpoints after 2 different actions. Largest state had 133 variables. [2018-12-02 15:16:41,346 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:16:41,347 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 15:16:41,347 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 15:16:41,347 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_01ea605f-885b-4d7f-9d14-7b6f89712bb7/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 [2018-12-02 15:16:41,355 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:16:41,355 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 15:16:41,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:16:41,429 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 15:16:41,507 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-02 15:16:41,507 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 15:16:41,655 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-02 15:16:41,671 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-02 15:16:41,672 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 8] total 15 [2018-12-02 15:16:41,672 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-02 15:16:41,672 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-02 15:16:41,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-02 15:16:41,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2018-12-02 15:16:41,673 INFO L87 Difference]: Start difference. First operand 1057 states and 1336 transitions. Second operand 12 states. [2018-12-02 15:16:43,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 15:16:43,663 INFO L93 Difference]: Finished difference Result 2480 states and 3389 transitions. [2018-12-02 15:16:43,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2018-12-02 15:16:43,664 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 88 [2018-12-02 15:16:43,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 15:16:43,671 INFO L225 Difference]: With dead ends: 2480 [2018-12-02 15:16:43,671 INFO L226 Difference]: Without dead ends: 1697 [2018-12-02 15:16:43,674 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 180 SyntacticMatches, 8 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 860 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=645, Invalid=2547, Unknown=0, NotChecked=0, Total=3192 [2018-12-02 15:16:43,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1697 states. [2018-12-02 15:16:43,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1697 to 1491. [2018-12-02 15:16:43,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1491 states. [2018-12-02 15:16:43,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1491 states to 1491 states and 1909 transitions. [2018-12-02 15:16:43,736 INFO L78 Accepts]: Start accepts. Automaton has 1491 states and 1909 transitions. Word has length 88 [2018-12-02 15:16:43,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 15:16:43,737 INFO L480 AbstractCegarLoop]: Abstraction has 1491 states and 1909 transitions. [2018-12-02 15:16:43,737 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-02 15:16:43,737 INFO L276 IsEmpty]: Start isEmpty. Operand 1491 states and 1909 transitions. [2018-12-02 15:16:43,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-12-02 15:16:43,740 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 15:16:43,740 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-12-02 15:16:43,740 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 15:16:43,740 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:16:43,740 INFO L82 PathProgramCache]: Analyzing trace with hash -1739476716, now seen corresponding path program 1 times [2018-12-02 15:16:43,740 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 15:16:43,741 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:16:43,741 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:16:43,741 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:16:43,741 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 15:16:43,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:16:43,799 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-12-02 15:16:43,799 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 15:16:43,799 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 15:16:43,799 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 156 with the following transitions: [2018-12-02 15:16:43,800 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [59], [62], [64], [65], [68], [71], [73], [74], [77], [79], [85], [89], [92], [94], [103], [107], [111], [117], [119], [125], [127], [130], [148], [149], [150], [151], [152], [153], [154], [156], [161], [163], [164], [172], [173], [202], [205], [209], [215], [218], [222], [223], [227], [230], [232], [235], [245], [253], [256], [271], [274], [275], [276], [277], [278], [279], [281], [282], [283], [284], [285], [286], [287], [288], [289], [295], [297], [298], [299], [300], [303], [304], [305], [306], [313], [314], [317], [318], [323], [324], [325], [326], [327], [328], [329], [330], [331], [333], [334], [335], [336], [347], [348] [2018-12-02 15:16:43,802 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 15:16:43,802 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 15:16:43,895 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-02 15:16:43,895 INFO L272 AbstractInterpreter]: Visited 55 different actions 55 times. Never merged. Never widened. Performed 2061 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2061 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-12-02 15:16:43,898 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:16:43,898 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-02 15:16:44,031 INFO L227 lantSequenceWeakener]: Weakened 65 states. On average, predicates are now at 96.44% of their original sizes. [2018-12-02 15:16:44,031 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-02 15:16:44,071 INFO L418 sIntCurrentIteration]: We unified 154 AI predicates to 154 [2018-12-02 15:16:44,071 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-02 15:16:44,072 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-02 15:16:44,072 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 15 [2018-12-02 15:16:44,072 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 15:16:44,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-02 15:16:44,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-02 15:16:44,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-12-02 15:16:44,072 INFO L87 Difference]: Start difference. First operand 1491 states and 1909 transitions. Second operand 9 states. [2018-12-02 15:16:45,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 15:16:45,173 INFO L93 Difference]: Finished difference Result 3177 states and 4091 transitions. [2018-12-02 15:16:45,173 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-02 15:16:45,173 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 155 [2018-12-02 15:16:45,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 15:16:45,178 INFO L225 Difference]: With dead ends: 3177 [2018-12-02 15:16:45,178 INFO L226 Difference]: Without dead ends: 1710 [2018-12-02 15:16:45,181 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 157 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-12-02 15:16:45,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1710 states. [2018-12-02 15:16:45,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1710 to 1682. [2018-12-02 15:16:45,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1682 states. [2018-12-02 15:16:45,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1682 states to 1682 states and 2139 transitions. [2018-12-02 15:16:45,242 INFO L78 Accepts]: Start accepts. Automaton has 1682 states and 2139 transitions. Word has length 155 [2018-12-02 15:16:45,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 15:16:45,242 INFO L480 AbstractCegarLoop]: Abstraction has 1682 states and 2139 transitions. [2018-12-02 15:16:45,243 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-02 15:16:45,243 INFO L276 IsEmpty]: Start isEmpty. Operand 1682 states and 2139 transitions. [2018-12-02 15:16:45,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2018-12-02 15:16:45,245 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 15:16:45,245 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-12-02 15:16:45,246 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 15:16:45,246 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:16:45,246 INFO L82 PathProgramCache]: Analyzing trace with hash 687590278, now seen corresponding path program 1 times [2018-12-02 15:16:45,246 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 15:16:45,246 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:16:45,246 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:16:45,246 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:16:45,247 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 15:16:45,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:16:45,314 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-12-02 15:16:45,314 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 15:16:45,314 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 15:16:45,314 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 149 with the following transitions: [2018-12-02 15:16:45,314 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [59], [68], [71], [73], [74], [89], [92], [94], [103], [107], [111], [117], [119], [122], [125], [127], [130], [148], [149], [150], [151], [152], [153], [154], [156], [161], [163], [164], [169], [171], [202], [205], [209], [215], [218], [222], [223], [227], [230], [232], [235], [245], [253], [256], [271], [274], [275], [276], [277], [278], [279], [281], [282], [283], [284], [285], [286], [287], [288], [289], [295], [305], [306], [309], [310], [313], [314], [317], [318], [323], [324], [325], [326], [327], [328], [329], [330], [331], [333], [334], [335], [336], [347], [348] [2018-12-02 15:16:45,317 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 15:16:45,317 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 15:16:45,499 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-02 15:16:45,499 INFO L272 AbstractInterpreter]: Visited 59 different actions 83 times. Merged at 3 different actions 3 times. Never widened. Performed 5234 root evaluator evaluations with a maximum evaluation depth of 3. Performed 5234 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-12-02 15:16:45,502 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:16:45,502 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-02 15:16:45,657 INFO L227 lantSequenceWeakener]: Weakened 84 states. On average, predicates are now at 97.21% of their original sizes. [2018-12-02 15:16:45,657 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-02 15:16:45,715 INFO L418 sIntCurrentIteration]: We unified 147 AI predicates to 147 [2018-12-02 15:16:45,715 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-02 15:16:45,716 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-02 15:16:45,716 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [8] total 21 [2018-12-02 15:16:45,716 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 15:16:45,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-12-02 15:16:45,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-12-02 15:16:45,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2018-12-02 15:16:45,717 INFO L87 Difference]: Start difference. First operand 1682 states and 2139 transitions. Second operand 15 states. [2018-12-02 15:16:47,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 15:16:47,314 INFO L93 Difference]: Finished difference Result 3411 states and 4408 transitions. [2018-12-02 15:16:47,314 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-12-02 15:16:47,314 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 148 [2018-12-02 15:16:47,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 15:16:47,319 INFO L225 Difference]: With dead ends: 3411 [2018-12-02 15:16:47,319 INFO L226 Difference]: Without dead ends: 1855 [2018-12-02 15:16:47,322 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 156 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=133, Invalid=419, Unknown=0, NotChecked=0, Total=552 [2018-12-02 15:16:47,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1855 states. [2018-12-02 15:16:47,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1855 to 1796. [2018-12-02 15:16:47,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1796 states. [2018-12-02 15:16:47,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1796 states to 1796 states and 2268 transitions. [2018-12-02 15:16:47,378 INFO L78 Accepts]: Start accepts. Automaton has 1796 states and 2268 transitions. Word has length 148 [2018-12-02 15:16:47,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 15:16:47,378 INFO L480 AbstractCegarLoop]: Abstraction has 1796 states and 2268 transitions. [2018-12-02 15:16:47,378 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-12-02 15:16:47,379 INFO L276 IsEmpty]: Start isEmpty. Operand 1796 states and 2268 transitions. [2018-12-02 15:16:47,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2018-12-02 15:16:47,381 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 15:16:47,381 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 15:16:47,381 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 15:16:47,381 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:16:47,382 INFO L82 PathProgramCache]: Analyzing trace with hash 1600324428, now seen corresponding path program 1 times [2018-12-02 15:16:47,382 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 15:16:47,382 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:16:47,382 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:16:47,382 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:16:47,382 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 15:16:47,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:16:47,452 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 16 proven. 12 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-12-02 15:16:47,452 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 15:16:47,452 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 15:16:47,453 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 145 with the following transitions: [2018-12-02 15:16:47,453 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [59], [68], [71], [73], [74], [89], [92], [94], [103], [107], [111], [117], [119], [125], [127], [130], [148], [149], [150], [151], [152], [153], [154], [156], [159], [161], [163], [164], [202], [205], [209], [215], [218], [222], [223], [227], [230], [232], [235], [245], [253], [256], [271], [274], [275], [276], [277], [278], [279], [281], [282], [283], [284], [285], [286], [287], [288], [289], [295], [305], [306], [313], [314], [317], [318], [323], [324], [325], [326], [327], [328], [329], [330], [331], [333], [334], [335], [336], [347], [348] [2018-12-02 15:16:47,454 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 15:16:47,454 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 15:16:47,677 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 15:16:47,677 INFO L272 AbstractInterpreter]: Visited 95 different actions 218 times. Merged at 14 different actions 14 times. Never widened. Performed 6767 root evaluator evaluations with a maximum evaluation depth of 3. Performed 6767 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 2 fixpoints after 1 different actions. Largest state had 132 variables. [2018-12-02 15:16:47,678 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:16:47,678 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 15:16:47,678 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 15:16:47,678 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_01ea605f-885b-4d7f-9d14-7b6f89712bb7/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 [2018-12-02 15:16:47,685 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:16:47,685 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 15:16:47,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:16:47,752 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 15:16:47,782 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 23 proven. 8 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-12-02 15:16:47,782 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 15:16:47,898 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 20 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-12-02 15:16:47,913 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-02 15:16:47,913 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2018-12-02 15:16:47,913 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-02 15:16:47,914 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-02 15:16:47,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-02 15:16:47,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-12-02 15:16:47,914 INFO L87 Difference]: Start difference. First operand 1796 states and 2268 transitions. Second operand 9 states. [2018-12-02 15:16:48,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 15:16:48,341 INFO L93 Difference]: Finished difference Result 3390 states and 4407 transitions. [2018-12-02 15:16:48,341 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-02 15:16:48,341 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 144 [2018-12-02 15:16:48,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 15:16:48,347 INFO L225 Difference]: With dead ends: 3390 [2018-12-02 15:16:48,347 INFO L226 Difference]: Without dead ends: 1674 [2018-12-02 15:16:48,351 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 286 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2018-12-02 15:16:48,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1674 states. [2018-12-02 15:16:48,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1674 to 1611. [2018-12-02 15:16:48,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1611 states. [2018-12-02 15:16:48,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1611 states to 1611 states and 1901 transitions. [2018-12-02 15:16:48,408 INFO L78 Accepts]: Start accepts. Automaton has 1611 states and 1901 transitions. Word has length 144 [2018-12-02 15:16:48,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 15:16:48,409 INFO L480 AbstractCegarLoop]: Abstraction has 1611 states and 1901 transitions. [2018-12-02 15:16:48,409 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-02 15:16:48,409 INFO L276 IsEmpty]: Start isEmpty. Operand 1611 states and 1901 transitions. [2018-12-02 15:16:48,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2018-12-02 15:16:48,411 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 15:16:48,411 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 15:16:48,411 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 15:16:48,411 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:16:48,411 INFO L82 PathProgramCache]: Analyzing trace with hash -1449438525, now seen corresponding path program 1 times [2018-12-02 15:16:48,412 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 15:16:48,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:16:48,412 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:16:48,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:16:48,412 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 15:16:48,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:16:48,494 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 17 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-12-02 15:16:48,494 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 15:16:48,494 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 15:16:48,494 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 158 with the following transitions: [2018-12-02 15:16:48,494 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [57], [58], [59], [62], [64], [65], [68], [72], [73], [74], [77], [79], [85], [89], [92], [93], [94], [103], [107], [111], [114], [117], [119], [125], [127], [130], [146], [147], [148], [149], [150], [151], [152], [153], [154], [156], [161], [163], [164], [172], [173], [202], [205], [209], [215], [218], [222], [223], [227], [230], [232], [235], [242], [245], [248], [252], [253], [256], [259], [261], [267], [271], [274], [275], [276], [277], [278], [279], [281], [282], [283], [284], [285], [286], [287], [288], [289], [293], [294], [295], [297], [298], [299], [300], [303], [304], [305], [306], [307], [308], [313], [314], [317], [318], [323], [324], [325], [326], [327], [328], [329], [330], [331], [333], [334], [335], [336], [339], [340], [341], [342], [345], [346], [347], [348] [2018-12-02 15:16:48,496 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 15:16:48,496 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 15:16:49,210 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 15:16:49,210 INFO L272 AbstractInterpreter]: Visited 133 different actions 645 times. Merged at 18 different actions 51 times. Never widened. Performed 20419 root evaluator evaluations with a maximum evaluation depth of 5. Performed 20419 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 9 fixpoints after 3 different actions. Largest state had 132 variables. [2018-12-02 15:16:49,211 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:16:49,212 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 15:16:49,212 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 15:16:49,212 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_01ea605f-885b-4d7f-9d14-7b6f89712bb7/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 [2018-12-02 15:16:49,219 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:16:49,219 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 15:16:49,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:16:49,279 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 15:16:49,321 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 18 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:16:49,321 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 15:16:49,479 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 18 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-12-02 15:16:49,494 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-02 15:16:49,494 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 17 [2018-12-02 15:16:49,494 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-02 15:16:49,494 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-12-02 15:16:49,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-12-02 15:16:49,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2018-12-02 15:16:49,495 INFO L87 Difference]: Start difference. First operand 1611 states and 1901 transitions. Second operand 14 states. [2018-12-02 15:16:50,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 15:16:50,614 INFO L93 Difference]: Finished difference Result 3421 states and 4298 transitions. [2018-12-02 15:16:50,614 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-12-02 15:16:50,614 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 157 [2018-12-02 15:16:50,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 15:16:50,619 INFO L225 Difference]: With dead ends: 3421 [2018-12-02 15:16:50,619 INFO L226 Difference]: Without dead ends: 2204 [2018-12-02 15:16:50,621 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 309 SyntacticMatches, 6 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=265, Invalid=995, Unknown=0, NotChecked=0, Total=1260 [2018-12-02 15:16:50,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2204 states. [2018-12-02 15:16:50,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2204 to 1899. [2018-12-02 15:16:50,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1899 states. [2018-12-02 15:16:50,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1899 states to 1899 states and 2230 transitions. [2018-12-02 15:16:50,684 INFO L78 Accepts]: Start accepts. Automaton has 1899 states and 2230 transitions. Word has length 157 [2018-12-02 15:16:50,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 15:16:50,684 INFO L480 AbstractCegarLoop]: Abstraction has 1899 states and 2230 transitions. [2018-12-02 15:16:50,684 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-12-02 15:16:50,685 INFO L276 IsEmpty]: Start isEmpty. Operand 1899 states and 2230 transitions. [2018-12-02 15:16:50,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2018-12-02 15:16:50,688 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 15:16:50,688 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 15:16:50,688 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 15:16:50,688 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:16:50,688 INFO L82 PathProgramCache]: Analyzing trace with hash 819622895, now seen corresponding path program 1 times [2018-12-02 15:16:50,689 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 15:16:50,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:16:50,689 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:16:50,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:16:50,689 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 15:16:50,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:16:50,764 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 41 proven. 10 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-12-02 15:16:50,764 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 15:16:50,764 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 15:16:50,764 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 227 with the following transitions: [2018-12-02 15:16:50,764 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [55], [57], [58], [59], [62], [64], [65], [68], [72], [73], [74], [77], [79], [85], [89], [92], [93], [94], [103], [107], [111], [114], [117], [119], [125], [127], [130], [146], [147], [148], [149], [150], [151], [152], [153], [154], [156], [161], [163], [164], [172], [173], [202], [205], [209], [215], [218], [222], [223], [227], [230], [232], [235], [242], [245], [248], [252], [253], [256], [259], [261], [267], [271], [274], [275], [276], [277], [278], [279], [281], [282], [283], [284], [285], [286], [287], [288], [289], [293], [294], [295], [297], [298], [299], [300], [303], [304], [305], [306], [307], [308], [313], [314], [317], [318], [323], [324], [325], [326], [327], [328], [329], [330], [331], [333], [334], [335], [336], [339], [340], [341], [342], [345], [346], [347], [348] [2018-12-02 15:16:50,766 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 15:16:50,766 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 15:16:51,468 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 15:16:51,468 INFO L272 AbstractInterpreter]: Visited 134 different actions 672 times. Merged at 23 different actions 71 times. Never widened. Performed 21027 root evaluator evaluations with a maximum evaluation depth of 5. Performed 21027 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 13 fixpoints after 5 different actions. Largest state had 132 variables. [2018-12-02 15:16:51,469 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:16:51,470 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 15:16:51,470 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 15:16:51,470 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_01ea605f-885b-4d7f-9d14-7b6f89712bb7/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 [2018-12-02 15:16:51,500 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:16:51,500 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 15:16:51,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:16:51,569 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 15:16:51,620 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2018-12-02 15:16:51,620 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 15:16:51,819 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 41 proven. 10 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-12-02 15:16:51,834 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-02 15:16:51,834 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [9, 6] total 13 [2018-12-02 15:16:51,834 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 15:16:51,834 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 15:16:51,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 15:16:51,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-12-02 15:16:51,835 INFO L87 Difference]: Start difference. First operand 1899 states and 2230 transitions. Second operand 6 states. [2018-12-02 15:16:51,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 15:16:51,885 INFO L93 Difference]: Finished difference Result 3360 states and 4004 transitions. [2018-12-02 15:16:51,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 15:16:51,886 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 226 [2018-12-02 15:16:51,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 15:16:51,891 INFO L225 Difference]: With dead ends: 3360 [2018-12-02 15:16:51,892 INFO L226 Difference]: Without dead ends: 1855 [2018-12-02 15:16:51,895 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 463 GetRequests, 447 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2018-12-02 15:16:51,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1855 states. [2018-12-02 15:16:51,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1855 to 1855. [2018-12-02 15:16:51,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1855 states. [2018-12-02 15:16:51,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1855 states to 1855 states and 2178 transitions. [2018-12-02 15:16:51,959 INFO L78 Accepts]: Start accepts. Automaton has 1855 states and 2178 transitions. Word has length 226 [2018-12-02 15:16:51,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 15:16:51,960 INFO L480 AbstractCegarLoop]: Abstraction has 1855 states and 2178 transitions. [2018-12-02 15:16:51,960 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 15:16:51,960 INFO L276 IsEmpty]: Start isEmpty. Operand 1855 states and 2178 transitions. [2018-12-02 15:16:51,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2018-12-02 15:16:51,962 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 15:16:51,963 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 15:16:51,963 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 15:16:51,963 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:16:51,963 INFO L82 PathProgramCache]: Analyzing trace with hash -87687068, now seen corresponding path program 1 times [2018-12-02 15:16:51,963 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 15:16:51,963 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:16:51,963 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:16:51,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:16:51,964 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 15:16:51,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:16:52,044 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 66 proven. 14 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2018-12-02 15:16:52,044 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 15:16:52,044 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 15:16:52,044 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 261 with the following transitions: [2018-12-02 15:16:52,044 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [57], [58], [59], [62], [64], [65], [66], [67], [68], [71], [72], [73], [74], [77], [79], [82], [85], [89], [92], [93], [94], [103], [107], [111], [114], [117], [119], [125], [127], [130], [146], [147], [148], [149], [150], [151], [152], [153], [154], [156], [161], [163], [164], [172], [173], [202], [205], [209], [215], [218], [222], [223], [227], [230], [232], [235], [242], [245], [248], [252], [253], [256], [259], [261], [267], [271], [274], [275], [276], [277], [278], [279], [281], [282], [283], [284], [285], [286], [287], [288], [289], [293], [294], [295], [297], [298], [299], [300], [301], [302], [303], [304], [305], [306], [307], [308], [313], [314], [317], [318], [323], [324], [325], [326], [327], [328], [329], [330], [331], [333], [334], [335], [336], [339], [340], [341], [342], [345], [346], [347], [348] [2018-12-02 15:16:52,045 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 15:16:52,045 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 15:16:52,777 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 15:16:52,778 INFO L272 AbstractInterpreter]: Visited 139 different actions 582 times. Merged at 23 different actions 70 times. Never widened. Performed 24368 root evaluator evaluations with a maximum evaluation depth of 5. Performed 24368 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 9 fixpoints after 5 different actions. Largest state had 132 variables. [2018-12-02 15:16:52,779 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:16:52,779 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 15:16:52,779 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 15:16:52,779 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_01ea605f-885b-4d7f-9d14-7b6f89712bb7/bin-2019/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 15:16:52,785 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:16:52,785 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 15:16:52,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:16:52,869 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 15:16:52,917 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2018-12-02 15:16:52,917 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 15:16:53,122 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 75 proven. 6 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2018-12-02 15:16:53,137 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-02 15:16:53,137 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [9, 5] total 12 [2018-12-02 15:16:53,137 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 15:16:53,137 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-02 15:16:53,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-02 15:16:53,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-12-02 15:16:53,138 INFO L87 Difference]: Start difference. First operand 1855 states and 2178 transitions. Second operand 5 states. [2018-12-02 15:16:53,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 15:16:53,171 INFO L93 Difference]: Finished difference Result 2380 states and 2812 transitions. [2018-12-02 15:16:53,171 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-02 15:16:53,172 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 260 [2018-12-02 15:16:53,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 15:16:53,172 INFO L225 Difference]: With dead ends: 2380 [2018-12-02 15:16:53,172 INFO L226 Difference]: Without dead ends: 0 [2018-12-02 15:16:53,175 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 531 GetRequests, 518 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-12-02 15:16:53,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-02 15:16:53,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-02 15:16:53,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-02 15:16:53,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 15:16:53,175 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 260 [2018-12-02 15:16:53,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 15:16:53,175 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 15:16:53,175 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-02 15:16:53,175 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-02 15:16:53,175 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 15:16:53,178 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-02 15:16:53,296 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:16:53,296 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:16:53,306 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:16:53,307 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:16:53,324 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:16:53,325 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:16:53,327 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:16:53,331 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:16:53,347 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:16:53,348 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:16:53,350 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:16:53,350 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:16:53,353 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:16:53,353 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:16:53,361 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:16:53,362 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:16:53,362 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:16:53,365 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:16:53,365 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:16:53,366 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:16:53,369 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:16:53,369 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:16:53,370 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:16:53,372 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:16:53,373 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:16:53,413 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:16:53,630 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:16:53,671 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:16:53,686 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:16:53,690 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:16:53,692 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:16:53,692 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:16:53,694 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:16:53,705 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:16:53,708 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:16:53,709 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:16:53,711 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:16:53,712 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:16:53,714 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:16:53,714 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:16:53,734 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:16:53,734 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:16:53,738 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:16:53,739 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:16:53,740 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:16:53,740 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:16:53,745 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:16:53,746 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:16:53,747 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:16:53,750 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:16:53,751 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:16:53,752 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:16:54,608 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 31 [2018-12-02 15:16:55,542 INFO L451 ceAbstractionStarter]: At program point select_helpersFINAL(lines 409 415) the Hoare annotation is: true [2018-12-02 15:16:55,543 INFO L448 ceAbstractionStarter]: For program point select_helpersEXIT(lines 409 415) no Hoare annotation was computed. [2018-12-02 15:16:55,543 INFO L448 ceAbstractionStarter]: For program point valid_productEXIT(lines 416 424) no Hoare annotation was computed. [2018-12-02 15:16:55,543 INFO L451 ceAbstractionStarter]: At program point valid_productENTRY(lines 416 424) the Hoare annotation is: true [2018-12-02 15:16:55,543 INFO L448 ceAbstractionStarter]: For program point valid_productFINAL(lines 416 424) no Hoare annotation was computed. [2018-12-02 15:16:55,543 INFO L451 ceAbstractionStarter]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 362 386) the Hoare annotation is: true [2018-12-02 15:16:55,543 INFO L444 ceAbstractionStarter]: At program point L376(line 376) the Hoare annotation is: (let ((.cse0 (not (= 0 ~pumpRunning~0))) (.cse1 (< ~waterLevel~0 2))) (and (or .cse0 (not (= ~waterLevel~0 1))) (or .cse0 .cse1) (or (< ~pumpRunning~0 1) (= ~systemActive~0 0) .cse1))) [2018-12-02 15:16:55,543 INFO L448 ceAbstractionStarter]: For program point L374(lines 374 380) no Hoare annotation was computed. [2018-12-02 15:16:55,543 INFO L444 ceAbstractionStarter]: At program point L372(line 372) the Hoare annotation is: (let ((.cse0 (not (= 0 ~pumpRunning~0))) (.cse1 (< ~waterLevel~0 2))) (and (or .cse0 (not (= ~waterLevel~0 1))) (or .cse0 .cse1) (or (< ~pumpRunning~0 1) (= ~systemActive~0 0) .cse1))) [2018-12-02 15:16:55,543 INFO L448 ceAbstractionStarter]: For program point L372-1(line 372) no Hoare annotation was computed. [2018-12-02 15:16:55,543 INFO L448 ceAbstractionStarter]: For program point __utac_acc__Specification4_spec__1EXIT(lines 362 386) no Hoare annotation was computed. [2018-12-02 15:16:55,543 INFO L448 ceAbstractionStarter]: For program point L370(lines 370 383) no Hoare annotation was computed. [2018-12-02 15:16:55,543 INFO L448 ceAbstractionStarter]: For program point L370-1(lines 362 386) no Hoare annotation was computed. [2018-12-02 15:16:55,543 INFO L451 ceAbstractionStarter]: At program point L368(line 368) the Hoare annotation is: true [2018-12-02 15:16:55,543 INFO L448 ceAbstractionStarter]: For program point L368-1(line 368) no Hoare annotation was computed. [2018-12-02 15:16:55,544 INFO L444 ceAbstractionStarter]: At program point L513(line 513) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 15:16:55,544 INFO L444 ceAbstractionStarter]: At program point L513-1(line 513) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 15:16:55,544 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 507 529) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 15:16:55,544 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 507 529) no Hoare annotation was computed. [2018-12-02 15:16:55,544 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 507 529) no Hoare annotation was computed. [2018-12-02 15:16:55,544 INFO L444 ceAbstractionStarter]: At program point L519(line 519) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= main_~tmp~7 ~systemActive~0) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 15:16:55,544 INFO L444 ceAbstractionStarter]: At program point L519-1(line 519) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= main_~tmp~7 ~systemActive~0) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 15:16:55,544 INFO L448 ceAbstractionStarter]: For program point L517(lines 517 524) no Hoare annotation was computed. [2018-12-02 15:16:55,544 INFO L448 ceAbstractionStarter]: For program point L517-1(lines 517 524) no Hoare annotation was computed. [2018-12-02 15:16:55,544 INFO L448 ceAbstractionStarter]: For program point L515(line 515) no Hoare annotation was computed. [2018-12-02 15:16:55,544 INFO L444 ceAbstractionStarter]: At program point L514(line 514) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 15:16:55,544 INFO L448 ceAbstractionStarter]: For program point stopSystemEXIT(lines 344 358) no Hoare annotation was computed. [2018-12-02 15:16:55,544 INFO L444 ceAbstractionStarter]: At program point L350(line 350) the Hoare annotation is: (let ((.cse1 (< ~waterLevel~0 2)) (.cse0 (not (= 0 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1) (or (or (< |old(~pumpRunning~0)| 1) (or (= |old(~systemActive~0)| 0) .cse1)) (and (not (= ~systemActive~0 0)) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (or .cse0 (not (= ~waterLevel~0 1))))) [2018-12-02 15:16:55,544 INFO L448 ceAbstractionStarter]: For program point L348(lines 348 354) no Hoare annotation was computed. [2018-12-02 15:16:55,544 INFO L444 ceAbstractionStarter]: At program point stopSystemENTRY(lines 344 358) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (or (< |old(~pumpRunning~0)| 1) (or (= |old(~systemActive~0)| 0) (< ~waterLevel~0 2))) (and (not (= ~systemActive~0 0)) .cse0)) (or .cse0 (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1)))) [2018-12-02 15:16:55,544 INFO L448 ceAbstractionStarter]: For program point stopSystemFINAL(lines 344 358) no Hoare annotation was computed. [2018-12-02 15:16:55,544 INFO L448 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 261 269) no Hoare annotation was computed. [2018-12-02 15:16:55,544 INFO L451 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 261 269) the Hoare annotation is: true [2018-12-02 15:16:55,545 INFO L448 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 261 269) no Hoare annotation was computed. [2018-12-02 15:16:55,545 INFO L448 ceAbstractionStarter]: For program point L334(lines 334 338) no Hoare annotation was computed. [2018-12-02 15:16:55,545 INFO L451 ceAbstractionStarter]: At program point L332(line 332) the Hoare annotation is: true [2018-12-02 15:16:55,545 INFO L448 ceAbstractionStarter]: For program point L334-2(lines 334 338) no Hoare annotation was computed. [2018-12-02 15:16:55,545 INFO L448 ceAbstractionStarter]: For program point L332-1(line 332) no Hoare annotation was computed. [2018-12-02 15:16:55,545 INFO L451 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 325 343) the Hoare annotation is: true [2018-12-02 15:16:55,545 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 325 343) no Hoare annotation was computed. [2018-12-02 15:16:55,545 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 325 343) no Hoare annotation was computed. [2018-12-02 15:16:55,545 INFO L448 ceAbstractionStarter]: For program point select_featuresEXIT(lines 402 408) no Hoare annotation was computed. [2018-12-02 15:16:55,545 INFO L451 ceAbstractionStarter]: At program point select_featuresFINAL(lines 402 408) the Hoare annotation is: true [2018-12-02 15:16:55,545 INFO L444 ceAbstractionStarter]: At program point runTestENTRY(lines 497 506) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 15:16:55,545 INFO L448 ceAbstractionStarter]: For program point runTestEXIT(lines 497 506) no Hoare annotation was computed. [2018-12-02 15:16:55,545 INFO L448 ceAbstractionStarter]: For program point runTestFINAL(lines 497 506) no Hoare annotation was computed. [2018-12-02 15:16:55,545 INFO L451 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 250 260) the Hoare annotation is: true [2018-12-02 15:16:55,545 INFO L451 ceAbstractionStarter]: At program point L255(line 255) the Hoare annotation is: true [2018-12-02 15:16:55,545 INFO L448 ceAbstractionStarter]: For program point L255-1(line 255) no Hoare annotation was computed. [2018-12-02 15:16:55,545 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 250 260) no Hoare annotation was computed. [2018-12-02 15:16:55,545 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 250 260) no Hoare annotation was computed. [2018-12-02 15:16:55,545 INFO L444 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 242 249) the Hoare annotation is: (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (< |old(~pumpRunning~0)| 1) (= ~systemActive~0 0) (< ~waterLevel~0 1)) [2018-12-02 15:16:55,545 INFO L448 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 242 249) no Hoare annotation was computed. [2018-12-02 15:16:55,545 INFO L448 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 242 249) no Hoare annotation was computed. [2018-12-02 15:16:55,546 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 976 989) no Hoare annotation was computed. [2018-12-02 15:16:55,546 INFO L448 ceAbstractionStarter]: For program point L980(lines 980 986) no Hoare annotation was computed. [2018-12-02 15:16:55,546 INFO L451 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 976 989) the Hoare annotation is: true [2018-12-02 15:16:55,546 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 976 989) no Hoare annotation was computed. [2018-12-02 15:16:55,546 INFO L444 ceAbstractionStarter]: At program point L223(line 223) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 0)) (.cse1 (< ~waterLevel~0 1))) (and (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (< |old(~pumpRunning~0)| 1) .cse0 .cse1) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1))) [2018-12-02 15:16:55,546 INFO L444 ceAbstractionStarter]: At program point L219(line 219) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 0)) (.cse1 (< ~waterLevel~0 1))) (and (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (< |old(~pumpRunning~0)| 1) .cse0 .cse1) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1))) [2018-12-02 15:16:55,546 INFO L448 ceAbstractionStarter]: For program point L217(lines 217 225) no Hoare annotation was computed. [2018-12-02 15:16:55,546 INFO L444 ceAbstractionStarter]: At program point L215(line 215) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 0)) (.cse1 (< ~waterLevel~0 1))) (and (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (< |old(~pumpRunning~0)| 1) .cse0 .cse1) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1))) [2018-12-02 15:16:55,546 INFO L448 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 209 233) no Hoare annotation was computed. [2018-12-02 15:16:55,546 INFO L448 ceAbstractionStarter]: For program point L215-1(line 215) no Hoare annotation was computed. [2018-12-02 15:16:55,546 INFO L448 ceAbstractionStarter]: For program point L213(lines 213 230) no Hoare annotation was computed. [2018-12-02 15:16:55,546 INFO L444 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 209 233) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (= ~systemActive~0 0)) (.cse2 (< ~waterLevel~0 1))) (and (or .cse0 (< |old(~pumpRunning~0)| 1) .cse1 .cse2) (or .cse0 (not (= 0 |old(~pumpRunning~0)|)) .cse1 .cse2))) [2018-12-02 15:16:55,546 INFO L444 ceAbstractionStarter]: At program point L228(line 228) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 0)) (.cse1 (< ~waterLevel~0 1))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse1) (or (< |old(~pumpRunning~0)| 1) .cse0 .cse1))) [2018-12-02 15:16:55,546 INFO L448 ceAbstractionStarter]: For program point L228-1(lines 209 233) no Hoare annotation was computed. [2018-12-02 15:16:55,546 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 149 155) no Hoare annotation was computed. [2018-12-02 15:16:55,546 INFO L451 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 149 155) the Hoare annotation is: true [2018-12-02 15:16:55,546 INFO L444 ceAbstractionStarter]: At program point testENTRY(lines 45 110) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 15:16:55,546 INFO L444 ceAbstractionStarter]: At program point L93(line 93) the Hoare annotation is: (let ((.cse1 (<= 2 ~waterLevel~0)) (.cse0 (= test_~splverifierCounter~0 0))) (or (not (= |old(~systemActive~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 1 ~pumpRunning~0) (and (not (= ~systemActive~0 0)) .cse0) .cse1) (and (and (= ~waterLevel~0 1) .cse0) (= ~pumpRunning~0 0)) (and .cse1 (= 0 ~pumpRunning~0) .cse0) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-12-02 15:16:55,547 INFO L448 ceAbstractionStarter]: For program point L91(lines 91 97) no Hoare annotation was computed. [2018-12-02 15:16:55,547 INFO L444 ceAbstractionStarter]: At program point L91-1(lines 85 98) the Hoare annotation is: (let ((.cse0 (<= 2 ~waterLevel~0)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= |old(~systemActive~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 1 ~pumpRunning~0) .cse0 (not (= ~systemActive~0 0)) .cse1) (and .cse1 (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and .cse0 (= 0 ~pumpRunning~0) .cse1))) [2018-12-02 15:16:55,547 INFO L448 ceAbstractionStarter]: For program point L56(lines 55 102) no Hoare annotation was computed. [2018-12-02 15:16:55,547 INFO L448 ceAbstractionStarter]: For program point testFINAL(lines 45 110) no Hoare annotation was computed. [2018-12-02 15:16:55,547 INFO L448 ceAbstractionStarter]: For program point L85(lines 85 98) no Hoare annotation was computed. [2018-12-02 15:16:55,547 INFO L444 ceAbstractionStarter]: At program point L77(line 77) the Hoare annotation is: (let ((.cse0 (<= 2 ~waterLevel~0)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= |old(~systemActive~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 1 ~pumpRunning~0) .cse0 (not (= ~systemActive~0 0)) .cse1) (and .cse1 (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and .cse0 (= 0 ~pumpRunning~0) .cse1))) [2018-12-02 15:16:55,547 INFO L448 ceAbstractionStarter]: For program point L75(lines 75 81) no Hoare annotation was computed. [2018-12-02 15:16:55,547 INFO L448 ceAbstractionStarter]: For program point L75-1(lines 75 81) no Hoare annotation was computed. [2018-12-02 15:16:55,547 INFO L444 ceAbstractionStarter]: At program point L100(lines 55 102) the Hoare annotation is: (let ((.cse0 (<= 2 ~waterLevel~0)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= |old(~systemActive~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 1 ~pumpRunning~0) .cse0 (not (= ~systemActive~0 0)) .cse1) (and .cse1 (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and .cse0 (= 0 ~pumpRunning~0) .cse1))) [2018-12-02 15:16:55,547 INFO L444 ceAbstractionStarter]: At program point L67(line 67) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (and (= ~pumpRunning~0 0) .cse0 (<= |old(~waterLevel~0)| ~waterLevel~0)) (and (<= 1 ~pumpRunning~0) (<= 2 ~waterLevel~0) (not (= ~systemActive~0 0)) .cse0) (not (= |old(~systemActive~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-12-02 15:16:55,547 INFO L448 ceAbstractionStarter]: For program point L65(lines 65 71) no Hoare annotation was computed. [2018-12-02 15:16:55,547 INFO L448 ceAbstractionStarter]: For program point L65-1(lines 65 71) no Hoare annotation was computed. [2018-12-02 15:16:55,547 INFO L448 ceAbstractionStarter]: For program point L57(lines 57 61) no Hoare annotation was computed. [2018-12-02 15:16:55,547 INFO L444 ceAbstractionStarter]: At program point L103(lines 54 104) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 15:16:55,547 INFO L448 ceAbstractionStarter]: For program point testEXIT(lines 45 110) no Hoare annotation was computed. [2018-12-02 15:16:55,547 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 990 998) no Hoare annotation was computed. [2018-12-02 15:16:55,547 INFO L451 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 990 998) the Hoare annotation is: true [2018-12-02 15:16:55,547 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 990 998) no Hoare annotation was computed. [2018-12-02 15:16:55,547 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-02 15:16:55,548 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)) [2018-12-02 15:16:55,548 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-02 15:16:55,548 INFO L448 ceAbstractionStarter]: For program point activatePumpFINAL(lines 234 241) no Hoare annotation was computed. [2018-12-02 15:16:55,548 INFO L448 ceAbstractionStarter]: For program point activatePumpEXIT(lines 234 241) no Hoare annotation was computed. [2018-12-02 15:16:55,548 INFO L444 ceAbstractionStarter]: At program point activatePumpENTRY(lines 234 241) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= ~systemActive~0 0) (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 2)) [2018-12-02 15:16:55,548 INFO L451 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 967 975) the Hoare annotation is: true [2018-12-02 15:16:55,548 INFO L448 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 967 975) no Hoare annotation was computed. [2018-12-02 15:16:55,548 INFO L448 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 967 975) no Hoare annotation was computed. [2018-12-02 15:16:55,548 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 306 324) no Hoare annotation was computed. [2018-12-02 15:16:55,548 INFO L448 ceAbstractionStarter]: For program point L315(lines 315 319) no Hoare annotation was computed. [2018-12-02 15:16:55,548 INFO L451 ceAbstractionStarter]: At program point L313(line 313) the Hoare annotation is: true [2018-12-02 15:16:55,548 INFO L448 ceAbstractionStarter]: For program point L315-2(lines 315 319) no Hoare annotation was computed. [2018-12-02 15:16:55,548 INFO L448 ceAbstractionStarter]: For program point L313-1(line 313) no Hoare annotation was computed. [2018-12-02 15:16:55,548 INFO L451 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 306 324) the Hoare annotation is: true [2018-12-02 15:16:55,548 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 306 324) no Hoare annotation was computed. [2018-12-02 15:16:55,548 INFO L448 ceAbstractionStarter]: For program point L927-1(lines 923 934) no Hoare annotation was computed. [2018-12-02 15:16:55,548 INFO L444 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 923 934) the Hoare annotation is: (or (not (= 0 ~pumpRunning~0)) (= ~methaneLevelCritical~0 0) (not (= ~waterLevel~0 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 15:16:55,548 INFO L448 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 923 934) no Hoare annotation was computed. [2018-12-02 15:16:55,548 INFO L451 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 935 943) the Hoare annotation is: true [2018-12-02 15:16:55,548 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 935 943) no Hoare annotation was computed. [2018-12-02 15:16:55,548 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 935 943) no Hoare annotation was computed. [2018-12-02 15:16:55,548 INFO L451 ceAbstractionStarter]: At program point L450-1(lines 450 454) the Hoare annotation is: true [2018-12-02 15:16:55,548 INFO L448 ceAbstractionStarter]: For program point cleanupEXIT(lines 436 465) no Hoare annotation was computed. [2018-12-02 15:16:55,549 INFO L448 ceAbstractionStarter]: For program point L447(line 447) no Hoare annotation was computed. [2018-12-02 15:16:55,549 INFO L451 ceAbstractionStarter]: At program point cleanupENTRY(lines 436 465) the Hoare annotation is: true [2018-12-02 15:16:55,549 INFO L451 ceAbstractionStarter]: At program point L446-2(lines 446 460) the Hoare annotation is: true [2018-12-02 15:16:55,549 INFO L451 ceAbstractionStarter]: At program point L442(line 442) the Hoare annotation is: true [2018-12-02 15:16:55,549 INFO L448 ceAbstractionStarter]: For program point L442-1(line 442) no Hoare annotation was computed. [2018-12-02 15:16:55,549 INFO L451 ceAbstractionStarter]: At program point L461(lines 436 465) the Hoare annotation is: true [2018-12-02 15:16:55,549 INFO L448 ceAbstractionStarter]: For program point L457(line 457) no Hoare annotation was computed. [2018-12-02 15:16:55,549 INFO L448 ceAbstractionStarter]: For program point L450(lines 450 454) no Hoare annotation was computed. [2018-12-02 15:16:55,549 INFO L448 ceAbstractionStarter]: For program point L129(lines 128 147) no Hoare annotation was computed. [2018-12-02 15:16:55,549 INFO L444 ceAbstractionStarter]: At program point timeShiftENTRY(lines 125 148) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (< |old(~waterLevel~0)| 2)) (.cse1 (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)))) (and (or .cse0 .cse1 (not (= |old(~waterLevel~0)| 1))) (or .cse1 (or .cse0 .cse2)) (or (< |old(~pumpRunning~0)| 1) (= ~systemActive~0 0) .cse2 .cse1))) [2018-12-02 15:16:55,549 INFO L448 ceAbstractionStarter]: For program point timeShiftEXIT(lines 125 148) no Hoare annotation was computed. [2018-12-02 15:16:55,549 INFO L444 ceAbstractionStarter]: At program point L138(line 138) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 0)) (.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (and (not .cse0) (= ~waterLevel~0 |old(~waterLevel~0)|) .cse1) (< |old(~waterLevel~0)| 1)) (or (< |old(~pumpRunning~0)| 1) .cse0 (< |old(~waterLevel~0)| 2) (and (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse1)))) [2018-12-02 15:16:55,549 INFO L444 ceAbstractionStarter]: At program point L136(lines 136 142) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 0))) (and (or (< |old(~pumpRunning~0)| 1) .cse0 (< |old(~waterLevel~0)| 2) (and (= 0 ~pumpRunning~0) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)))) (let ((.cse1 (= ~waterLevel~0 |old(~waterLevel~0)|))) (or (and (<= 1 ~pumpRunning~0) (<= 2 ~waterLevel~0) (not .cse0) .cse1) (not (= 0 |old(~pumpRunning~0)|)) (and .cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (< |old(~waterLevel~0)| 1))))) [2018-12-02 15:16:55,549 INFO L448 ceAbstractionStarter]: For program point timeShiftFINAL(lines 125 148) no Hoare annotation was computed. [2018-12-02 15:16:55,549 INFO L444 ceAbstractionStarter]: At program point L131(line 131) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (< |old(~waterLevel~0)| 2))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1))) (or .cse0 .cse1) (or (< |old(~pumpRunning~0)| 1) (= ~systemActive~0 0) .cse1 (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0))))) [2018-12-02 15:16:55,549 INFO L444 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 899 910) the Hoare annotation is: (or (< ~pumpRunning~0 1) (= ~systemActive~0 0) (< |old(~waterLevel~0)| 2) (= ~waterLevel~0 |old(~waterLevel~0)|)) [2018-12-02 15:16:55,549 INFO L448 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 899 910) no Hoare annotation was computed. [2018-12-02 15:16:55,549 INFO L448 ceAbstractionStarter]: For program point L903-1(lines 899 910) no Hoare annotation was computed. [2018-12-02 15:16:55,549 INFO L448 ceAbstractionStarter]: For program point setupEXIT(lines 490 496) no Hoare annotation was computed. [2018-12-02 15:16:55,549 INFO L451 ceAbstractionStarter]: At program point setupFINAL(lines 490 496) the Hoare annotation is: true [2018-12-02 15:16:55,550 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-02 15:16:55,550 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0) (= ~systemActive~0 1)) [2018-12-02 15:16:55,550 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-02 15:16:55,550 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-02 15:16:55,550 INFO L448 ceAbstractionStarter]: For program point L161(lines 161 178) no Hoare annotation was computed. [2018-12-02 15:16:55,550 INFO L444 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 157 181) the Hoare annotation is: (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (not (= 0 |old(~pumpRunning~0)|)) (= ~systemActive~0 0) (< ~waterLevel~0 1)) [2018-12-02 15:16:55,550 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 157 181) no Hoare annotation was computed. [2018-12-02 15:16:55,550 INFO L444 ceAbstractionStarter]: At program point L176(line 176) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= ~systemActive~0 0) (< ~waterLevel~0 1)) [2018-12-02 15:16:55,550 INFO L448 ceAbstractionStarter]: For program point L176-1(lines 157 181) no Hoare annotation was computed. [2018-12-02 15:16:55,550 INFO L444 ceAbstractionStarter]: At program point L171(line 171) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= ~systemActive~0 0) (< ~waterLevel~0 1) (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~1) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-12-02 15:16:55,550 INFO L444 ceAbstractionStarter]: At program point L167(line 167) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= ~systemActive~0 0) (< ~waterLevel~0 1) (and (<= 2 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-12-02 15:16:55,550 INFO L448 ceAbstractionStarter]: For program point L165(lines 165 173) no Hoare annotation was computed. [2018-12-02 15:16:55,550 INFO L444 ceAbstractionStarter]: At program point L163(line 163) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= ~systemActive~0 0) (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 1)) [2018-12-02 15:16:55,550 INFO L448 ceAbstractionStarter]: For program point L163-1(line 163) no Hoare annotation was computed. [2018-12-02 15:16:55,550 INFO L448 ceAbstractionStarter]: For program point waterRiseEXIT(lines 911 922) no Hoare annotation was computed. [2018-12-02 15:16:55,550 INFO L444 ceAbstractionStarter]: At program point waterRiseENTRY(lines 911 922) the Hoare annotation is: (let ((.cse0 (not (= 0 ~pumpRunning~0))) (.cse1 (< |old(~waterLevel~0)| 2)) (.cse2 (= ~waterLevel~0 |old(~waterLevel~0)|))) (and (or .cse0 .cse1 .cse2) (or .cse2 .cse0 (not (= |old(~waterLevel~0)| 1))) (or (< ~pumpRunning~0 1) .cse1 .cse2 (= ~systemActive~0 0)))) [2018-12-02 15:16:55,550 INFO L448 ceAbstractionStarter]: For program point L915-1(lines 911 922) no Hoare annotation was computed. [2018-12-02 15:16:55,550 INFO L448 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 426 433) no Hoare annotation was computed. [2018-12-02 15:16:55,550 INFO L448 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 430) no Hoare annotation was computed. [2018-12-02 15:16:55,551 INFO L451 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 426 433) the Hoare annotation is: true [2018-12-02 15:16:55,551 INFO L448 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 426 433) no Hoare annotation was computed. [2018-12-02 15:16:55,551 INFO L444 ceAbstractionStarter]: At program point L193(line 193) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 0)) (.cse1 (< ~waterLevel~0 1))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or (< |old(~pumpRunning~0)| 1) .cse0 (and (<= 1 processEnvironment__wrappee__lowWaterSensor_~tmp~2) (= |old(~pumpRunning~0)| ~pumpRunning~0)) .cse1))) [2018-12-02 15:16:55,551 INFO L448 ceAbstractionStarter]: For program point L191(lines 191 199) no Hoare annotation was computed. [2018-12-02 15:16:55,551 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__lowWaterSensorEXIT(lines 183 207) no Hoare annotation was computed. [2018-12-02 15:16:55,551 INFO L444 ceAbstractionStarter]: At program point L189(line 189) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 0)) (.cse1 (< ~waterLevel~0 1))) (and (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (< |old(~pumpRunning~0)| 1) .cse0 .cse1) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1))) [2018-12-02 15:16:55,551 INFO L448 ceAbstractionStarter]: For program point L189-1(line 189) no Hoare annotation was computed. [2018-12-02 15:16:55,551 INFO L448 ceAbstractionStarter]: For program point L187(lines 187 204) no Hoare annotation was computed. [2018-12-02 15:16:55,551 INFO L444 ceAbstractionStarter]: At program point processEnvironment__wrappee__lowWaterSensorENTRY(lines 183 207) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (= ~systemActive~0 0)) (.cse2 (< ~waterLevel~0 1))) (and (or .cse0 (< |old(~pumpRunning~0)| 1) .cse1 .cse2) (or .cse0 (not (= 0 |old(~pumpRunning~0)|)) .cse1 .cse2))) [2018-12-02 15:16:55,551 INFO L444 ceAbstractionStarter]: At program point L202(line 202) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 0)) (.cse1 (< ~waterLevel~0 1))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse1) (or (< |old(~pumpRunning~0)| 1) .cse0 .cse1))) [2018-12-02 15:16:55,551 INFO L448 ceAbstractionStarter]: For program point L202-1(lines 183 207) no Hoare annotation was computed. [2018-12-02 15:16:55,551 INFO L444 ceAbstractionStarter]: At program point L197(line 197) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 0)) (.cse1 (< ~waterLevel~0 1))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or (< |old(~pumpRunning~0)| 1) .cse0 .cse1))) [2018-12-02 15:16:55,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:16:55 BoogieIcfgContainer [2018-12-02 15:16:55,559 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 15:16:55,559 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 15:16:55,559 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 15:16:55,559 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 15:16:55,559 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:16:39" (3/4) ... [2018-12-02 15:16:55,562 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 15:16:55,565 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-12-02 15:16:55,565 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-12-02 15:16:55,565 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification4_spec__1 [2018-12-02 15:16:55,565 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-02 15:16:55,566 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure stopSystem [2018-12-02 15:16:55,566 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-12-02 15:16:55,566 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterLevel [2018-12-02 15:16:55,566 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-12-02 15:16:55,566 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-12-02 15:16:55,566 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2018-12-02 15:16:55,566 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-12-02 15:16:55,566 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-12-02 15:16:55,566 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-12-02 15:16:55,566 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-12-02 15:16:55,566 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-12-02 15:16:55,566 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterSensorDry [2018-12-02 15:16:55,566 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-02 15:16:55,566 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-12-02 15:16:55,566 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure getWaterLevel [2018-12-02 15:16:55,566 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-12-02 15:16:55,566 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-12-02 15:16:55,566 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2018-12-02 15:16:55,566 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-12-02 15:16:55,566 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-12-02 15:16:55,566 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-12-02 15:16:55,566 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-12-02 15:16:55,567 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2018-12-02 15:16:55,567 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-12-02 15:16:55,567 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-12-02 15:16:55,567 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__lowWaterSensor [2018-12-02 15:16:55,571 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 46 nodes and edges [2018-12-02 15:16:55,571 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2018-12-02 15:16:55,571 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-12-02 15:16:55,572 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-02 15:16:55,572 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-02 15:16:55,572 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-02 15:16:55,589 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(systemActive) == 1) || !(0 == \old(pumpRunning))) || (((1 <= pumpRunning && 2 <= waterLevel) && !(systemActive == 0)) && splverifierCounter == 0)) || ((splverifierCounter == 0 && waterLevel == \old(waterLevel)) && pumpRunning == 0)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0)) || ((2 <= waterLevel && 0 == pumpRunning) && splverifierCounter == 0) [2018-12-02 15:16:55,590 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-12-02 15:16:55,613 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_01ea605f-885b-4d7f-9d14-7b6f89712bb7/bin-2019/utaipan/witness.graphml [2018-12-02 15:16:55,613 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 15:16:55,614 INFO L168 Benchmark]: Toolchain (without parser) took 17156.48 ms. Allocated memory was 1.0 GB in the beginning and 2.0 GB in the end (delta: 1.0 GB). Free memory was 947.0 MB in the beginning and 1.5 GB in the end (delta: -561.8 MB). Peak memory consumption was 453.2 MB. Max. memory is 11.5 GB. [2018-12-02 15:16:55,614 INFO L168 Benchmark]: CDTParser took 0.10 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. [2018-12-02 15:16:55,614 INFO L168 Benchmark]: CACSL2BoogieTranslator took 287.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -171.4 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. [2018-12-02 15:16:55,614 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-12-02 15:16:55,614 INFO L168 Benchmark]: Boogie Preprocessor took 22.35 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 15:16:55,614 INFO L168 Benchmark]: RCFGBuilder took 375.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 11.5 GB. [2018-12-02 15:16:55,615 INFO L168 Benchmark]: TraceAbstraction took 16393.23 ms. Allocated memory was 1.2 GB in the beginning and 2.0 GB in the end (delta: 881.3 MB). Free memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: -446.8 MB). Peak memory consumption was 1.2 GB. Max. memory is 11.5 GB. [2018-12-02 15:16:55,615 INFO L168 Benchmark]: Witness Printer took 54.16 ms. Allocated memory is still 2.0 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 159.0 kB). Peak memory consumption was 159.0 kB. Max. memory is 11.5 GB. [2018-12-02 15:16:55,616 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 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 287.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -171.4 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.35 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 375.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 16393.23 ms. Allocated memory was 1.2 GB in the beginning and 2.0 GB in the end (delta: 881.3 MB). Free memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: -446.8 MB). Peak memory consumption was 1.2 GB. Max. memory is 11.5 GB. * Witness Printer took 54.16 ms. Allocated memory is still 2.0 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 159.0 kB). Peak memory consumption was 159.0 kB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 430]: 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: 446]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: ((!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 436]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: (((((!(\old(systemActive) == 1) || !(0 == \old(pumpRunning))) || (((1 <= pumpRunning && 2 <= waterLevel) && !(systemActive == 0)) && splverifierCounter == 0)) || ((splverifierCounter == 0 && waterLevel == \old(waterLevel)) && pumpRunning == 0)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0)) || ((2 <= waterLevel && 0 == pumpRunning) && splverifierCounter == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 31 procedures, 165 locations, 1 error locations. SAFE Result, 16.3s OverallTime, 12 OverallIterations, 4 TraceHistogramMax, 7.2s AutomataDifference, 0.0s DeadEndRemovalTime, 2.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 2402 SDtfs, 3197 SDslu, 7220 SDs, 0 SdLazy, 7030 SolverSat, 1617 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.9s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 2255 GetRequests, 2043 SyntacticMatches, 25 SemanticMatches, 187 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1326 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1899occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 3.1s AbstIntTime, 7 AbstIntIterations, 2 AbstIntStrong, 0.9980089832510595 AbsIntWeakeningRatio, 0.8637873754152824 AbsIntAvgWeakeningVarsNumRemoved, 37.82724252491694 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 12 MinimizatonAttempts, 816 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 69 LocationsWithAnnotation, 5203 PreInvPairs, 5324 NumberOfFragments, 1346 HoareAnnotationTreeSize, 5203 FomulaSimplifications, 28644 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 69 FomulaSimplificationsInter, 17803 FormulaSimplificationTreeSizeReductionInter, 1.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 2315 NumberOfCodeBlocks, 2315 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 3168 ConstructedInterpolants, 0 QuantifiedInterpolants, 742226 SizeOfPredicates, 20 NumberOfNonLiveVariables, 4580 ConjunctsInSsa, 43 ConjunctsInUnsatCore, 22 InterpolantComputations, 7 PerfectInterpolantSequences, 1333/1468 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...