./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product57_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_b99bdcdd-79c1-4fcd-bbee-13aff92126da/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b99bdcdd-79c1-4fcd-bbee-13aff92126da/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b99bdcdd-79c1-4fcd-bbee-13aff92126da/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b99bdcdd-79c1-4fcd-bbee-13aff92126da/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product57_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b99bdcdd-79c1-4fcd-bbee-13aff92126da/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b99bdcdd-79c1-4fcd-bbee-13aff92126da/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 52d4df169e32a92349e61a4b5d4d731cb2f40ee9 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 10:55:00,593 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 10:55:00,595 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 10:55:00,602 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 10:55:00,602 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 10:55:00,603 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 10:55:00,603 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 10:55:00,604 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 10:55:00,605 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 10:55:00,605 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 10:55:00,605 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 10:55:00,606 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 10:55:00,606 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 10:55:00,606 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 10:55:00,607 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 10:55:00,607 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 10:55:00,608 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 10:55:00,608 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 10:55:00,609 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 10:55:00,610 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 10:55:00,611 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 10:55:00,611 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 10:55:00,613 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 10:55:00,613 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 10:55:00,613 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 10:55:00,614 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 10:55:00,614 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 10:55:00,615 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 10:55:00,615 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 10:55:00,616 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 10:55:00,616 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 10:55:00,616 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 10:55:00,616 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 10:55:00,616 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 10:55:00,617 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 10:55:00,617 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 10:55:00,617 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b99bdcdd-79c1-4fcd-bbee-13aff92126da/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 10:55:00,625 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 10:55:00,625 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 10:55:00,626 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 10:55:00,626 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 10:55:00,626 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 10:55:00,626 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 10:55:00,627 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 10:55:00,627 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 10:55:00,627 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 10:55:00,627 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 10:55:00,627 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 10:55:00,627 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 10:55:00,627 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 10:55:00,628 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 10:55:00,628 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 10:55:00,628 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 10:55:00,628 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 10:55:00,628 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 10:55:00,628 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 10:55:00,628 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 10:55:00,628 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 10:55:00,628 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 10:55:00,629 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 10:55:00,629 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 10:55:00,629 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 10:55:00,629 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 10:55:00,629 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 10:55:00,629 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 10:55:00,629 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 10:55:00,629 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 10:55:00,629 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 10:55:00,629 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 10:55:00,630 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 10:55:00,630 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 10:55:00,630 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 10:55:00,630 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 10:55:00,630 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_b99bdcdd-79c1-4fcd-bbee-13aff92126da/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 -> 52d4df169e32a92349e61a4b5d4d731cb2f40ee9 [2018-12-09 10:55:00,650 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 10:55:00,659 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 10:55:00,662 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 10:55:00,663 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 10:55:00,663 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 10:55:00,664 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b99bdcdd-79c1-4fcd-bbee-13aff92126da/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product57_true-unreach-call_false-termination.cil.c [2018-12-09 10:55:00,707 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b99bdcdd-79c1-4fcd-bbee-13aff92126da/bin-2019/utaipan/data/e59e9a8f6/abcf49539b6d4a229c3ebb64812cb36f/FLAGcc28a3835 [2018-12-09 10:55:01,151 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 10:55:01,151 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b99bdcdd-79c1-4fcd-bbee-13aff92126da/sv-benchmarks/c/product-lines/minepump_spec4_product57_true-unreach-call_false-termination.cil.c [2018-12-09 10:55:01,158 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b99bdcdd-79c1-4fcd-bbee-13aff92126da/bin-2019/utaipan/data/e59e9a8f6/abcf49539b6d4a229c3ebb64812cb36f/FLAGcc28a3835 [2018-12-09 10:55:01,166 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b99bdcdd-79c1-4fcd-bbee-13aff92126da/bin-2019/utaipan/data/e59e9a8f6/abcf49539b6d4a229c3ebb64812cb36f [2018-12-09 10:55:01,168 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 10:55:01,169 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 10:55:01,170 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 10:55:01,170 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 10:55:01,173 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 10:55:01,173 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:55:01" (1/1) ... [2018-12-09 10:55:01,175 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@354f5439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:55:01, skipping insertion in model container [2018-12-09 10:55:01,176 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:55:01" (1/1) ... [2018-12-09 10:55:01,181 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 10:55:01,208 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 10:55:01,387 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 10:55:01,435 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 10:55:01,487 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 10:55:01,504 INFO L195 MainTranslator]: Completed translation [2018-12-09 10:55:01,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:55:01 WrapperNode [2018-12-09 10:55:01,505 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 10:55:01,505 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 10:55:01,505 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 10:55:01,505 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 10:55:01,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:55:01" (1/1) ... [2018-12-09 10:55:01,522 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:55:01" (1/1) ... [2018-12-09 10:55:01,529 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 10:55:01,529 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 10:55:01,529 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 10:55:01,529 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 10:55:01,536 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:55:01" (1/1) ... [2018-12-09 10:55:01,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:55:01" (1/1) ... [2018-12-09 10:55:01,539 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:55:01" (1/1) ... [2018-12-09 10:55:01,539 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:55:01" (1/1) ... [2018-12-09 10:55:01,547 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:55:01" (1/1) ... [2018-12-09 10:55:01,551 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:55:01" (1/1) ... [2018-12-09 10:55:01,552 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:55:01" (1/1) ... [2018-12-09 10:55:01,554 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 10:55:01,554 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 10:55:01,554 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 10:55:01,554 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 10:55:01,555 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:55:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b99bdcdd-79c1-4fcd-bbee-13aff92126da/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 [2018-12-09 10:55:01,585 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-09 10:55:01,585 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-09 10:55:01,585 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2018-12-09 10:55:01,586 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2018-12-09 10:55:01,586 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 10:55:01,586 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 10:55:01,586 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-12-09 10:55:01,586 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-12-09 10:55:01,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 10:55:01,586 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-09 10:55:01,586 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-09 10:55:01,586 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-09 10:55:01,586 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-09 10:55:01,587 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-09 10:55:01,587 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-09 10:55:01,587 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-09 10:55:01,587 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-09 10:55:01,587 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-09 10:55:01,587 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-09 10:55:01,587 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2018-12-09 10:55:01,587 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2018-12-09 10:55:01,587 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-12-09 10:55:01,587 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-12-09 10:55:01,587 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-09 10:55:01,587 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-09 10:55:01,587 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-12-09 10:55:01,587 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-12-09 10:55:01,587 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-09 10:55:01,588 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-09 10:55:01,588 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-09 10:55:01,588 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-09 10:55:01,588 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-09 10:55:01,588 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-09 10:55:01,588 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-09 10:55:01,588 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-09 10:55:01,588 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-09 10:55:01,588 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-09 10:55:01,588 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-12-09 10:55:01,588 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-12-09 10:55:01,588 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-09 10:55:01,588 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-09 10:55:01,588 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-09 10:55:01,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-09 10:55:01,589 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-09 10:55:01,589 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-09 10:55:01,589 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-09 10:55:01,589 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-09 10:55:01,589 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-09 10:55:01,589 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-09 10:55:01,589 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-12-09 10:55:01,589 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-12-09 10:55:01,589 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-09 10:55:01,589 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-09 10:55:01,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-09 10:55:01,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 10:55:01,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 10:55:01,589 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-09 10:55:01,589 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-09 10:55:01,590 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-09 10:55:01,590 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-09 10:55:01,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 10:55:01,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 10:55:01,890 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 10:55:01,891 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-09 10:55:01,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:55:01 BoogieIcfgContainer [2018-12-09 10:55:01,891 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 10:55:01,892 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 10:55:01,892 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 10:55:01,894 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 10:55:01,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 10:55:01" (1/3) ... [2018-12-09 10:55:01,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cba8e74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:55:01, skipping insertion in model container [2018-12-09 10:55:01,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:55:01" (2/3) ... [2018-12-09 10:55:01,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cba8e74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:55:01, skipping insertion in model container [2018-12-09 10:55:01,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:55:01" (3/3) ... [2018-12-09 10:55:01,897 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product57_true-unreach-call_false-termination.cil.c [2018-12-09 10:55:01,905 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 10:55:01,911 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 10:55:01,923 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 10:55:01,944 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 10:55:01,944 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 10:55:01,944 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 10:55:01,945 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 10:55:01,945 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 10:55:01,945 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 10:55:01,945 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 10:55:01,945 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 10:55:01,962 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states. [2018-12-09 10:55:01,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-09 10:55:01,968 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:55:01,969 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] [2018-12-09 10:55:01,971 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:55:01,974 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:55:01,975 INFO L82 PathProgramCache]: Analyzing trace with hash 1585836956, now seen corresponding path program 1 times [2018-12-09 10:55:01,976 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:55:02,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:55:02,004 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:55:02,004 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:55:02,004 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:55:02,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:55:02,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:55:02,124 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:55:02,124 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 10:55:02,124 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:55:02,127 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 10:55:02,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 10:55:02,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 10:55:02,136 INFO L87 Difference]: Start difference. First operand 156 states. Second operand 2 states. [2018-12-09 10:55:02,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:55:02,159 INFO L93 Difference]: Finished difference Result 286 states and 349 transitions. [2018-12-09 10:55:02,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 10:55:02,160 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-09 10:55:02,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:55:02,167 INFO L225 Difference]: With dead ends: 286 [2018-12-09 10:55:02,167 INFO L226 Difference]: Without dead ends: 143 [2018-12-09 10:55:02,169 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 [2018-12-09 10:55:02,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2018-12-09 10:55:02,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2018-12-09 10:55:02,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2018-12-09 10:55:02,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 166 transitions. [2018-12-09 10:55:02,199 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 166 transitions. Word has length 46 [2018-12-09 10:55:02,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:55:02,200 INFO L480 AbstractCegarLoop]: Abstraction has 143 states and 166 transitions. [2018-12-09 10:55:02,200 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 10:55:02,200 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 166 transitions. [2018-12-09 10:55:02,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-09 10:55:02,202 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:55:02,202 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] [2018-12-09 10:55:02,202 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:55:02,202 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:55:02,202 INFO L82 PathProgramCache]: Analyzing trace with hash 215568744, now seen corresponding path program 1 times [2018-12-09 10:55:02,202 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:55:02,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:55:02,203 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:55:02,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:55:02,203 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:55:02,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:55:02,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:55:02,256 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:55:02,256 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 10:55:02,256 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:55:02,257 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 10:55:02,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 10:55:02,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 10:55:02,257 INFO L87 Difference]: Start difference. First operand 143 states and 166 transitions. Second operand 3 states. [2018-12-09 10:55:02,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:55:02,273 INFO L93 Difference]: Finished difference Result 235 states and 271 transitions. [2018-12-09 10:55:02,274 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 10:55:02,274 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-09 10:55:02,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:55:02,275 INFO L225 Difference]: With dead ends: 235 [2018-12-09 10:55:02,276 INFO L226 Difference]: Without dead ends: 134 [2018-12-09 10:55:02,277 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 [2018-12-09 10:55:02,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2018-12-09 10:55:02,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2018-12-09 10:55:02,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2018-12-09 10:55:02,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 154 transitions. [2018-12-09 10:55:02,284 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 154 transitions. Word has length 47 [2018-12-09 10:55:02,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:55:02,285 INFO L480 AbstractCegarLoop]: Abstraction has 134 states and 154 transitions. [2018-12-09 10:55:02,285 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 10:55:02,285 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 154 transitions. [2018-12-09 10:55:02,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-12-09 10:55:02,285 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:55:02,286 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] [2018-12-09 10:55:02,286 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:55:02,286 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:55:02,286 INFO L82 PathProgramCache]: Analyzing trace with hash -2137158565, now seen corresponding path program 1 times [2018-12-09 10:55:02,286 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:55:02,287 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:55:02,287 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:55:02,287 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:55:02,287 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:55:02,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:55:02,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:55:02,356 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:55:02,356 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 10:55:02,356 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:55:02,356 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 10:55:02,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 10:55:02,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-09 10:55:02,357 INFO L87 Difference]: Start difference. First operand 134 states and 154 transitions. Second operand 7 states. [2018-12-09 10:55:02,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:55:02,508 INFO L93 Difference]: Finished difference Result 244 states and 285 transitions. [2018-12-09 10:55:02,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 10:55:02,508 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2018-12-09 10:55:02,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:55:02,510 INFO L225 Difference]: With dead ends: 244 [2018-12-09 10:55:02,510 INFO L226 Difference]: Without dead ends: 134 [2018-12-09 10:55:02,511 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-09 10:55:02,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2018-12-09 10:55:02,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2018-12-09 10:55:02,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2018-12-09 10:55:02,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 153 transitions. [2018-12-09 10:55:02,521 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 153 transitions. Word has length 51 [2018-12-09 10:55:02,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:55:02,522 INFO L480 AbstractCegarLoop]: Abstraction has 134 states and 153 transitions. [2018-12-09 10:55:02,522 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 10:55:02,522 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 153 transitions. [2018-12-09 10:55:02,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-12-09 10:55:02,524 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:55:02,524 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:55:02,524 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:55:02,524 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:55:02,524 INFO L82 PathProgramCache]: Analyzing trace with hash 146173488, now seen corresponding path program 1 times [2018-12-09 10:55:02,525 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:55:02,525 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:55:02,525 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:55:02,525 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:55:02,526 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:55:02,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:55:02,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:55:02,599 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:55:02,599 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-09 10:55:02,599 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:55:02,599 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 10:55:02,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 10:55:02,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 10:55:02,600 INFO L87 Difference]: Start difference. First operand 134 states and 153 transitions. Second operand 5 states. [2018-12-09 10:55:02,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:55:02,890 INFO L93 Difference]: Finished difference Result 340 states and 405 transitions. [2018-12-09 10:55:02,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 10:55:02,891 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 64 [2018-12-09 10:55:02,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:55:02,892 INFO L225 Difference]: With dead ends: 340 [2018-12-09 10:55:02,892 INFO L226 Difference]: Without dead ends: 230 [2018-12-09 10:55:02,893 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-09 10:55:02,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2018-12-09 10:55:02,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 212. [2018-12-09 10:55:02,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2018-12-09 10:55:02,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 240 transitions. [2018-12-09 10:55:02,907 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 240 transitions. Word has length 64 [2018-12-09 10:55:02,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:55:02,908 INFO L480 AbstractCegarLoop]: Abstraction has 212 states and 240 transitions. [2018-12-09 10:55:02,908 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 10:55:02,908 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 240 transitions. [2018-12-09 10:55:02,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-12-09 10:55:02,909 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:55:02,909 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:55:02,909 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:55:02,909 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:55:02,909 INFO L82 PathProgramCache]: Analyzing trace with hash -1166900812, now seen corresponding path program 1 times [2018-12-09 10:55:02,909 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:55:02,910 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:55:02,910 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:55:02,910 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:55:02,910 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:55:02,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:55:02,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:55:02,991 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:55:02,991 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-09 10:55:02,992 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:55:02,992 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-09 10:55:02,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-09 10:55:02,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-12-09 10:55:02,992 INFO L87 Difference]: Start difference. First operand 212 states and 240 transitions. Second operand 10 states. [2018-12-09 10:55:03,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:55:03,288 INFO L93 Difference]: Finished difference Result 686 states and 844 transitions. [2018-12-09 10:55:03,288 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-09 10:55:03,289 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 78 [2018-12-09 10:55:03,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:55:03,292 INFO L225 Difference]: With dead ends: 686 [2018-12-09 10:55:03,292 INFO L226 Difference]: Without dead ends: 498 [2018-12-09 10:55:03,294 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 [2018-12-09 10:55:03,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2018-12-09 10:55:03,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 488. [2018-12-09 10:55:03,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 488 states. [2018-12-09 10:55:03,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 571 transitions. [2018-12-09 10:55:03,328 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 571 transitions. Word has length 78 [2018-12-09 10:55:03,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:55:03,328 INFO L480 AbstractCegarLoop]: Abstraction has 488 states and 571 transitions. [2018-12-09 10:55:03,328 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-09 10:55:03,328 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 571 transitions. [2018-12-09 10:55:03,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-12-09 10:55:03,331 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:55:03,331 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:55:03,332 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:55:03,332 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:55:03,332 INFO L82 PathProgramCache]: Analyzing trace with hash -942496390, now seen corresponding path program 1 times [2018-12-09 10:55:03,332 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:55:03,333 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:55:03,333 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:55:03,333 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:55:03,333 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:55:03,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:55:03,412 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 17 proven. 9 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-12-09 10:55:03,412 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 10:55:03,412 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 10:55:03,412 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 153 with the following transitions: [2018-12-09 10:55:03,414 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [50], [53], [55], [56], [59], [62], [64], [65], [80], [83], [84], [85], [94], [98], [102], [105], [110], [116], [118], [121], [136], [137], [140], [141], [142], [144], [149], [152], [153], [154], [155], [157], [160], [164], [165], [173], [174], [206], [210], [216], [224], [228], [231], [233], [236], [239], [246], [249], [253], [254], [257], [258], [259], [260], [261], [263], [264], [265], [266], [267], [268], [269], [270], [271], [275], [277], [278], [285], [286], [287], [288], [291], [292], [295], [296], [297], [298], [299], [300], [307], [308], [309], [310], [311], [312], [313], [315], [316], [317], [318], [319], [320] [2018-12-09 10:55:03,436 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 10:55:03,437 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 10:55:03,651 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 10:55:03,652 INFO L272 AbstractInterpreter]: Visited 50 different actions 50 times. Never merged. Never widened. Performed 2047 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2047 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-12-09 10:55:03,656 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:55:03,657 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 10:55:03,861 INFO L227 lantSequenceWeakener]: Weakened 74 states. On average, predicates are now at 96.79% of their original sizes. [2018-12-09 10:55:03,862 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 10:55:03,929 INFO L418 sIntCurrentIteration]: We unified 151 AI predicates to 151 [2018-12-09 10:55:03,929 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 10:55:03,930 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 10:55:03,930 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [6] total 18 [2018-12-09 10:55:03,930 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:55:03,931 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-12-09 10:55:03,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-12-09 10:55:03,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2018-12-09 10:55:03,931 INFO L87 Difference]: Start difference. First operand 488 states and 571 transitions. Second operand 14 states. [2018-12-09 10:55:05,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:55:05,481 INFO L93 Difference]: Finished difference Result 1303 states and 1577 transitions. [2018-12-09 10:55:05,481 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-09 10:55:05,481 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 152 [2018-12-09 10:55:05,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:55:05,485 INFO L225 Difference]: With dead ends: 1303 [2018-12-09 10:55:05,485 INFO L226 Difference]: Without dead ends: 839 [2018-12-09 10:55:05,487 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 151 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2018-12-09 10:55:05,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 839 states. [2018-12-09 10:55:05,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 839 to 819. [2018-12-09 10:55:05,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 819 states. [2018-12-09 10:55:05,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 819 states to 819 states and 958 transitions. [2018-12-09 10:55:05,530 INFO L78 Accepts]: Start accepts. Automaton has 819 states and 958 transitions. Word has length 152 [2018-12-09 10:55:05,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:55:05,531 INFO L480 AbstractCegarLoop]: Abstraction has 819 states and 958 transitions. [2018-12-09 10:55:05,531 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-12-09 10:55:05,531 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states and 958 transitions. [2018-12-09 10:55:05,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-12-09 10:55:05,534 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:55:05,534 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] [2018-12-09 10:55:05,535 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:55:05,535 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:55:05,535 INFO L82 PathProgramCache]: Analyzing trace with hash -327376531, now seen corresponding path program 1 times [2018-12-09 10:55:05,535 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:55:05,536 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:55:05,536 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:55:05,536 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:55:05,536 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:55:05,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:55:05,608 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-12-09 10:55:05,608 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 10:55:05,608 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 10:55:05,608 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 156 with the following transitions: [2018-12-09 10:55:05,609 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [41], [44], [48], [49], [50], [53], [55], [56], [57], [58], [59], [63], [64], [65], [68], [70], [73], [80], [83], [85], [94], [98], [102], [105], [110], [113], [116], [118], [121], [136], [137], [138], [139], [140], [141], [142], [144], [149], [152], [153], [154], [155], [157], [160], [164], [165], [170], [172], [173], [174], [203], [206], [210], [216], [219], [223], [224], [228], [231], [233], [236], [246], [249], [253], [254], [257], [258], [259], [260], [261], [263], [264], [265], [266], [267], [268], [269], [270], [271], [273], [274], [275], [277], [278], [279], [280], [281], [282], [285], [286], [287], [288], [289], [290], [291], [292], [295], [296], [297], [298], [299], [300], [305], [306], [307], [308], [309], [310], [311], [312], [313], [315], [316], [317], [318] [2018-12-09 10:55:05,611 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 10:55:05,611 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 10:55:05,815 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 10:55:05,815 INFO L272 AbstractInterpreter]: Visited 61 different actions 83 times. Merged at 3 different actions 3 times. Never widened. Performed 4733 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4733 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-12-09 10:55:05,816 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:55:05,816 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 10:55:05,940 INFO L227 lantSequenceWeakener]: Weakened 74 states. On average, predicates are now at 96.6% of their original sizes. [2018-12-09 10:55:05,941 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 10:55:06,046 INFO L418 sIntCurrentIteration]: We unified 154 AI predicates to 154 [2018-12-09 10:55:06,047 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 10:55:06,047 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 10:55:06,047 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [5] total 23 [2018-12-09 10:55:06,047 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:55:06,047 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-12-09 10:55:06,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-12-09 10:55:06,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2018-12-09 10:55:06,048 INFO L87 Difference]: Start difference. First operand 819 states and 958 transitions. Second operand 20 states. [2018-12-09 10:55:09,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:55:09,244 INFO L93 Difference]: Finished difference Result 1804 states and 2201 transitions. [2018-12-09 10:55:09,244 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-12-09 10:55:09,244 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 155 [2018-12-09 10:55:09,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:55:09,247 INFO L225 Difference]: With dead ends: 1804 [2018-12-09 10:55:09,248 INFO L226 Difference]: Without dead ends: 1264 [2018-12-09 10:55:09,249 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 164 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=156, Invalid=714, Unknown=0, NotChecked=0, Total=870 [2018-12-09 10:55:09,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2018-12-09 10:55:09,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 1222. [2018-12-09 10:55:09,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1222 states. [2018-12-09 10:55:09,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1222 states to 1222 states and 1420 transitions. [2018-12-09 10:55:09,288 INFO L78 Accepts]: Start accepts. Automaton has 1222 states and 1420 transitions. Word has length 155 [2018-12-09 10:55:09,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:55:09,288 INFO L480 AbstractCegarLoop]: Abstraction has 1222 states and 1420 transitions. [2018-12-09 10:55:09,289 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-12-09 10:55:09,289 INFO L276 IsEmpty]: Start isEmpty. Operand 1222 states and 1420 transitions. [2018-12-09 10:55:09,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-12-09 10:55:09,290 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:55:09,291 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:55:09,291 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:55:09,291 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:55:09,291 INFO L82 PathProgramCache]: Analyzing trace with hash -2118320924, now seen corresponding path program 1 times [2018-12-09 10:55:09,291 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:55:09,292 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:55:09,292 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:55:09,292 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:55:09,292 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:55:09,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:55:09,340 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-09 10:55:09,341 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 10:55:09,341 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 10:55:09,341 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 148 with the following transitions: [2018-12-09 10:55:09,341 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [41], [44], [48], [49], [50], [53], [55], [56], [57], [58], [59], [62], [64], [65], [68], [70], [73], [80], [83], [85], [94], [98], [102], [105], [108], [110], [116], [118], [121], [136], [137], [138], [139], [140], [141], [142], [144], [149], [152], [153], [154], [155], [157], [160], [164], [165], [173], [174], [203], [206], [210], [216], [219], [223], [224], [228], [231], [233], [236], [246], [249], [253], [254], [257], [258], [259], [260], [261], [263], [264], [265], [266], [267], [268], [269], [270], [271], [273], [274], [275], [277], [278], [279], [280], [281], [282], [285], [286], [287], [288], [291], [292], [295], [296], [297], [298], [299], [300], [305], [306], [307], [308], [309], [310], [311], [312], [313], [315], [316], [317], [318] [2018-12-09 10:55:09,343 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 10:55:09,343 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 10:55:10,213 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 10:55:10,213 INFO L272 AbstractInterpreter]: Visited 127 different actions 695 times. Merged at 18 different actions 61 times. Never widened. Performed 24710 root evaluator evaluations with a maximum evaluation depth of 5. Performed 24710 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 12 fixpoints after 4 different actions. Largest state had 132 variables. [2018-12-09 10:55:10,215 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:55:10,216 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 10:55:10,216 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 10:55:10,216 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b99bdcdd-79c1-4fcd-bbee-13aff92126da/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 [2018-12-09 10:55:10,222 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:55:10,223 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 10:55:10,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:55:10,302 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 10:55:10,414 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-09 10:55:10,414 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 10:55:10,655 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-12-09 10:55:10,671 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-09 10:55:10,671 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [6, 10] total 19 [2018-12-09 10:55:10,671 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:55:10,671 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-09 10:55:10,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-09 10:55:10,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2018-12-09 10:55:10,672 INFO L87 Difference]: Start difference. First operand 1222 states and 1420 transitions. Second operand 11 states. [2018-12-09 10:55:11,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:55:11,410 INFO L93 Difference]: Finished difference Result 1790 states and 2215 transitions. [2018-12-09 10:55:11,410 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-12-09 10:55:11,410 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 147 [2018-12-09 10:55:11,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:55:11,414 INFO L225 Difference]: With dead ends: 1790 [2018-12-09 10:55:11,414 INFO L226 Difference]: Without dead ends: 1439 [2018-12-09 10:55:11,416 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 272 SyntacticMatches, 12 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=161, Invalid=651, Unknown=0, NotChecked=0, Total=812 [2018-12-09 10:55:11,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1439 states. [2018-12-09 10:55:11,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1439 to 1351. [2018-12-09 10:55:11,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1351 states. [2018-12-09 10:55:11,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1351 states to 1351 states and 1583 transitions. [2018-12-09 10:55:11,463 INFO L78 Accepts]: Start accepts. Automaton has 1351 states and 1583 transitions. Word has length 147 [2018-12-09 10:55:11,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:55:11,464 INFO L480 AbstractCegarLoop]: Abstraction has 1351 states and 1583 transitions. [2018-12-09 10:55:11,464 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-09 10:55:11,464 INFO L276 IsEmpty]: Start isEmpty. Operand 1351 states and 1583 transitions. [2018-12-09 10:55:11,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-12-09 10:55:11,466 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:55:11,466 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:55:11,466 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:55:11,466 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:55:11,466 INFO L82 PathProgramCache]: Analyzing trace with hash 1693560222, now seen corresponding path program 1 times [2018-12-09 10:55:11,466 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:55:11,467 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:55:11,467 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:55:11,467 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:55:11,467 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:55:11,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:55:11,535 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-09 10:55:11,535 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 10:55:11,535 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 10:55:11,535 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 144 with the following transitions: [2018-12-09 10:55:11,536 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [41], [44], [48], [49], [50], [53], [55], [56], [57], [58], [59], [62], [64], [65], [68], [70], [73], [80], [83], [85], [94], [98], [102], [108], [110], [116], [118], [121], [136], [137], [138], [139], [140], [141], [142], [144], [149], [152], [153], [154], [155], [157], [160], [164], [165], [173], [174], [203], [206], [210], [216], [219], [223], [224], [228], [231], [233], [236], [246], [254], [257], [258], [259], [260], [261], [263], [264], [265], [266], [267], [268], [269], [270], [271], [273], [274], [275], [277], [278], [279], [280], [281], [282], [285], [286], [291], [292], [295], [296], [297], [298], [299], [300], [305], [306], [307], [308], [309], [310], [311], [312], [313], [315], [316], [317], [318] [2018-12-09 10:55:11,537 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 10:55:11,537 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 10:55:12,195 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 10:55:12,195 INFO L272 AbstractInterpreter]: Visited 122 different actions 614 times. Merged at 16 different actions 51 times. Never widened. Performed 19440 root evaluator evaluations with a maximum evaluation depth of 5. Performed 19440 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 7 fixpoints after 2 different actions. Largest state had 132 variables. [2018-12-09 10:55:12,197 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:55:12,198 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 10:55:12,198 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 10:55:12,198 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b99bdcdd-79c1-4fcd-bbee-13aff92126da/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 [2018-12-09 10:55:12,204 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:55:12,204 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 10:55:12,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:55:12,276 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 10:55:12,311 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-12-09 10:55:12,311 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 10:55:12,476 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-09 10:55:12,493 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-09 10:55:12,493 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 6 [2018-12-09 10:55:12,493 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:55:12,493 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 10:55:12,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 10:55:12,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 10:55:12,493 INFO L87 Difference]: Start difference. First operand 1351 states and 1583 transitions. Second operand 6 states. [2018-12-09 10:55:12,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:55:12,544 INFO L93 Difference]: Finished difference Result 2739 states and 3280 transitions. [2018-12-09 10:55:12,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 10:55:12,544 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 143 [2018-12-09 10:55:12,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:55:12,547 INFO L225 Difference]: With dead ends: 2739 [2018-12-09 10:55:12,548 INFO L226 Difference]: Without dead ends: 1412 [2018-12-09 10:55:12,550 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 283 SyntacticMatches, 4 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-09 10:55:12,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1412 states. [2018-12-09 10:55:12,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1412 to 1386. [2018-12-09 10:55:12,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1386 states. [2018-12-09 10:55:12,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1386 states to 1386 states and 1620 transitions. [2018-12-09 10:55:12,594 INFO L78 Accepts]: Start accepts. Automaton has 1386 states and 1620 transitions. Word has length 143 [2018-12-09 10:55:12,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:55:12,594 INFO L480 AbstractCegarLoop]: Abstraction has 1386 states and 1620 transitions. [2018-12-09 10:55:12,595 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 10:55:12,595 INFO L276 IsEmpty]: Start isEmpty. Operand 1386 states and 1620 transitions. [2018-12-09 10:55:12,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-12-09 10:55:12,596 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:55:12,596 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:55:12,596 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:55:12,596 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:55:12,597 INFO L82 PathProgramCache]: Analyzing trace with hash 74585308, now seen corresponding path program 1 times [2018-12-09 10:55:12,597 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:55:12,597 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:55:12,597 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:55:12,597 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:55:12,597 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:55:12,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:55:12,648 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-09 10:55:12,649 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 10:55:12,649 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 10:55:12,649 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 144 with the following transitions: [2018-12-09 10:55:12,649 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [41], [44], [48], [49], [50], [53], [55], [56], [57], [58], [59], [62], [64], [65], [68], [70], [73], [80], [83], [85], [94], [98], [102], [108], [110], [116], [118], [121], [136], [137], [138], [139], [140], [141], [142], [144], [149], [152], [153], [154], [155], [157], [162], [164], [165], [173], [174], [203], [206], [210], [216], [219], [223], [224], [228], [231], [233], [236], [246], [254], [257], [258], [259], [260], [261], [263], [264], [265], [266], [267], [268], [269], [270], [271], [273], [274], [275], [277], [278], [279], [280], [281], [282], [285], [286], [291], [292], [295], [296], [297], [298], [299], [300], [305], [306], [307], [308], [309], [310], [311], [312], [313], [315], [316], [317], [318] [2018-12-09 10:55:12,651 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 10:55:12,651 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 10:55:12,719 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 10:55:12,719 INFO L272 AbstractInterpreter]: Visited 52 different actions 52 times. Never merged. Never widened. Performed 1933 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1933 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-12-09 10:55:12,720 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:55:12,721 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 10:55:12,804 INFO L227 lantSequenceWeakener]: Weakened 62 states. On average, predicates are now at 96.57% of their original sizes. [2018-12-09 10:55:12,804 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 10:55:12,834 INFO L418 sIntCurrentIteration]: We unified 142 AI predicates to 142 [2018-12-09 10:55:12,834 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 10:55:12,834 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 10:55:12,835 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [8] total 20 [2018-12-09 10:55:12,835 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:55:12,835 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-12-09 10:55:12,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-12-09 10:55:12,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2018-12-09 10:55:12,835 INFO L87 Difference]: Start difference. First operand 1386 states and 1620 transitions. Second operand 14 states. [2018-12-09 10:55:13,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:55:13,778 INFO L93 Difference]: Finished difference Result 2730 states and 3200 transitions. [2018-12-09 10:55:13,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-09 10:55:13,778 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 143 [2018-12-09 10:55:13,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:55:13,783 INFO L225 Difference]: With dead ends: 2730 [2018-12-09 10:55:13,783 INFO L226 Difference]: Without dead ends: 1368 [2018-12-09 10:55:13,786 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 145 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2018-12-09 10:55:13,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1368 states. [2018-12-09 10:55:13,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1368 to 1366. [2018-12-09 10:55:13,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1366 states. [2018-12-09 10:55:13,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1366 states to 1366 states and 1593 transitions. [2018-12-09 10:55:13,857 INFO L78 Accepts]: Start accepts. Automaton has 1366 states and 1593 transitions. Word has length 143 [2018-12-09 10:55:13,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:55:13,857 INFO L480 AbstractCegarLoop]: Abstraction has 1366 states and 1593 transitions. [2018-12-09 10:55:13,857 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-12-09 10:55:13,857 INFO L276 IsEmpty]: Start isEmpty. Operand 1366 states and 1593 transitions. [2018-12-09 10:55:13,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-12-09 10:55:13,860 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:55:13,860 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:55:13,860 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:55:13,860 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:55:13,861 INFO L82 PathProgramCache]: Analyzing trace with hash 1948475392, now seen corresponding path program 1 times [2018-12-09 10:55:13,861 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:55:13,861 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:55:13,861 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:55:13,861 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:55:13,862 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:55:13,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:55:13,927 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-09 10:55:13,927 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 10:55:13,927 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 10:55:13,927 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 148 with the following transitions: [2018-12-09 10:55:13,927 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [41], [44], [48], [49], [50], [53], [55], [56], [57], [58], [59], [62], [64], [65], [68], [70], [73], [80], [83], [85], [94], [98], [102], [108], [110], [113], [116], [118], [121], [136], [137], [138], [139], [140], [141], [142], [144], [149], [152], [153], [154], [155], [157], [162], [164], [165], [170], [172], [173], [174], [203], [206], [210], [216], [219], [223], [224], [228], [231], [233], [236], [246], [254], [257], [258], [259], [260], [261], [263], [264], [265], [266], [267], [268], [269], [270], [271], [273], [274], [275], [277], [278], [279], [280], [281], [282], [285], [286], [289], [290], [291], [292], [295], [296], [297], [298], [299], [300], [305], [306], [307], [308], [309], [310], [311], [312], [313], [315], [316], [317], [318] [2018-12-09 10:55:13,929 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 10:55:13,929 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 10:55:14,081 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 10:55:14,081 INFO L272 AbstractInterpreter]: Visited 57 different actions 79 times. Merged at 3 different actions 3 times. Never widened. Performed 4605 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4605 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-12-09 10:55:14,083 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:55:14,083 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 10:55:14,214 INFO L227 lantSequenceWeakener]: Weakened 66 states. On average, predicates are now at 96.56% of their original sizes. [2018-12-09 10:55:14,214 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 10:55:14,280 INFO L418 sIntCurrentIteration]: We unified 146 AI predicates to 146 [2018-12-09 10:55:14,280 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 10:55:14,280 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 10:55:14,280 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [8] total 23 [2018-12-09 10:55:14,280 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:55:14,280 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-12-09 10:55:14,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-12-09 10:55:14,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2018-12-09 10:55:14,281 INFO L87 Difference]: Start difference. First operand 1366 states and 1593 transitions. Second operand 17 states. [2018-12-09 10:55:15,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:55:15,425 INFO L93 Difference]: Finished difference Result 2572 states and 3007 transitions. [2018-12-09 10:55:15,425 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-09 10:55:15,425 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 147 [2018-12-09 10:55:15,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:55:15,428 INFO L225 Difference]: With dead ends: 2572 [2018-12-09 10:55:15,428 INFO L226 Difference]: Without dead ends: 1230 [2018-12-09 10:55:15,430 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 153 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=132, Invalid=420, Unknown=0, NotChecked=0, Total=552 [2018-12-09 10:55:15,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1230 states. [2018-12-09 10:55:15,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1230 to 1230. [2018-12-09 10:55:15,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1230 states. [2018-12-09 10:55:15,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1230 states to 1230 states and 1428 transitions. [2018-12-09 10:55:15,465 INFO L78 Accepts]: Start accepts. Automaton has 1230 states and 1428 transitions. Word has length 147 [2018-12-09 10:55:15,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:55:15,465 INFO L480 AbstractCegarLoop]: Abstraction has 1230 states and 1428 transitions. [2018-12-09 10:55:15,465 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-12-09 10:55:15,465 INFO L276 IsEmpty]: Start isEmpty. Operand 1230 states and 1428 transitions. [2018-12-09 10:55:15,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2018-12-09 10:55:15,467 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:55:15,467 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:55:15,467 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:55:15,467 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:55:15,467 INFO L82 PathProgramCache]: Analyzing trace with hash -819962258, now seen corresponding path program 1 times [2018-12-09 10:55:15,467 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:55:15,468 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:55:15,468 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:55:15,468 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:55:15,468 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:55:15,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:55:15,514 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-12-09 10:55:15,515 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:55:15,515 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 10:55:15,515 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:55:15,515 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 10:55:15,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 10:55:15,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 10:55:15,515 INFO L87 Difference]: Start difference. First operand 1230 states and 1428 transitions. Second operand 6 states. [2018-12-09 10:55:15,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:55:15,564 INFO L93 Difference]: Finished difference Result 1737 states and 2045 transitions. [2018-12-09 10:55:15,564 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 10:55:15,564 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 200 [2018-12-09 10:55:15,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:55:15,567 INFO L225 Difference]: With dead ends: 1737 [2018-12-09 10:55:15,567 INFO L226 Difference]: Without dead ends: 1240 [2018-12-09 10:55:15,568 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-09 10:55:15,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1240 states. [2018-12-09 10:55:15,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1240 to 1240. [2018-12-09 10:55:15,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1240 states. [2018-12-09 10:55:15,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1240 states to 1240 states and 1438 transitions. [2018-12-09 10:55:15,602 INFO L78 Accepts]: Start accepts. Automaton has 1240 states and 1438 transitions. Word has length 200 [2018-12-09 10:55:15,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:55:15,603 INFO L480 AbstractCegarLoop]: Abstraction has 1240 states and 1438 transitions. [2018-12-09 10:55:15,603 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 10:55:15,603 INFO L276 IsEmpty]: Start isEmpty. Operand 1240 states and 1438 transitions. [2018-12-09 10:55:15,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2018-12-09 10:55:15,605 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:55:15,605 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:55:15,606 INFO L423 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:55:15,606 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:55:15,606 INFO L82 PathProgramCache]: Analyzing trace with hash -1329435348, now seen corresponding path program 1 times [2018-12-09 10:55:15,606 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:55:15,606 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:55:15,607 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:55:15,607 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:55:15,607 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:55:15,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:55:15,679 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 43 proven. 11 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2018-12-09 10:55:15,679 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 10:55:15,679 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 10:55:15,679 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 201 with the following transitions: [2018-12-09 10:55:15,680 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [41], [44], [46], [48], [49], [50], [53], [55], [56], [57], [58], [59], [63], [64], [65], [68], [70], [73], [76], [80], [83], [84], [85], [94], [98], [102], [105], [108], [110], [116], [118], [121], [136], [137], [138], [139], [140], [141], [142], [144], [149], [152], [153], [154], [155], [157], [162], [164], [165], [173], [174], [203], [206], [210], [216], [219], [223], [224], [228], [231], [233], [236], [243], [246], [249], [253], [254], [257], [258], [259], [260], [261], [263], [264], [265], [266], [267], [268], [269], [270], [271], [273], [274], [275], [277], [278], [279], [280], [281], [282], [283], [284], [285], [286], [287], [288], [291], [292], [295], [296], [297], [298], [299], [300], [305], [306], [307], [308], [309], [310], [311], [312], [313], [315], [316], [317], [318], [321], [322] [2018-12-09 10:55:15,681 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 10:55:15,681 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 10:55:16,540 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 10:55:16,540 INFO L272 AbstractInterpreter]: Visited 135 different actions 743 times. Merged at 22 different actions 75 times. Never widened. Performed 26368 root evaluator evaluations with a maximum evaluation depth of 5. Performed 26368 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 15 fixpoints after 4 different actions. Largest state had 132 variables. [2018-12-09 10:55:16,542 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:55:16,542 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 10:55:16,542 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 10:55:16,542 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b99bdcdd-79c1-4fcd-bbee-13aff92126da/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 [2018-12-09 10:55:16,548 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:55:16,548 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 10:55:16,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:55:16,633 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 10:55:16,729 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 79 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-09 10:55:16,729 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 10:55:16,985 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 47 proven. 23 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-12-09 10:55:17,001 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 10:55:17,001 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 10] total 22 [2018-12-09 10:55:17,001 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 10:55:17,001 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-12-09 10:55:17,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-12-09 10:55:17,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=377, Unknown=0, NotChecked=0, Total=462 [2018-12-09 10:55:17,002 INFO L87 Difference]: Start difference. First operand 1240 states and 1438 transitions. Second operand 16 states. [2018-12-09 10:55:18,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:55:18,170 INFO L93 Difference]: Finished difference Result 2433 states and 3006 transitions. [2018-12-09 10:55:18,170 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-12-09 10:55:18,171 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 200 [2018-12-09 10:55:18,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:55:18,175 INFO L225 Difference]: With dead ends: 2433 [2018-12-09 10:55:18,175 INFO L226 Difference]: Without dead ends: 1924 [2018-12-09 10:55:18,177 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 393 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=307, Invalid=1099, Unknown=0, NotChecked=0, Total=1406 [2018-12-09 10:55:18,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1924 states. [2018-12-09 10:55:18,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1924 to 1740. [2018-12-09 10:55:18,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1740 states. [2018-12-09 10:55:18,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1740 states to 1740 states and 2015 transitions. [2018-12-09 10:55:18,232 INFO L78 Accepts]: Start accepts. Automaton has 1740 states and 2015 transitions. Word has length 200 [2018-12-09 10:55:18,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:55:18,232 INFO L480 AbstractCegarLoop]: Abstraction has 1740 states and 2015 transitions. [2018-12-09 10:55:18,232 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-12-09 10:55:18,232 INFO L276 IsEmpty]: Start isEmpty. Operand 1740 states and 2015 transitions. [2018-12-09 10:55:18,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2018-12-09 10:55:18,235 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:55:18,235 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:55:18,235 INFO L423 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:55:18,235 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:55:18,236 INFO L82 PathProgramCache]: Analyzing trace with hash 1907693870, now seen corresponding path program 1 times [2018-12-09 10:55:18,236 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:55:18,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:55:18,236 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:55:18,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:55:18,236 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:55:18,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:55:18,314 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 39 proven. 7 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2018-12-09 10:55:18,314 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 10:55:18,314 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 10:55:18,314 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 201 with the following transitions: [2018-12-09 10:55:18,315 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [41], [46], [48], [49], [50], [53], [55], [56], [57], [58], [59], [63], [64], [65], [68], [70], [73], [76], [80], [83], [84], [85], [94], [98], [102], [105], [108], [110], [116], [118], [121], [136], [137], [138], [139], [140], [141], [142], [144], [149], [152], [153], [154], [155], [157], [162], [164], [165], [173], [174], [203], [206], [210], [216], [219], [223], [224], [228], [231], [233], [236], [243], [246], [249], [253], [254], [257], [258], [259], [260], [261], [263], [264], [265], [266], [267], [268], [269], [270], [271], [273], [274], [275], [277], [278], [279], [280], [281], [282], [283], [284], [285], [286], [287], [288], [291], [292], [295], [296], [297], [298], [299], [300], [305], [306], [307], [308], [309], [310], [311], [312], [313], [315], [316], [317], [318], [321], [322] [2018-12-09 10:55:18,316 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 10:55:18,316 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 10:55:19,135 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 10:55:19,135 INFO L272 AbstractInterpreter]: Visited 134 different actions 698 times. Merged at 19 different actions 65 times. Never widened. Performed 25818 root evaluator evaluations with a maximum evaluation depth of 5. Performed 25818 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 13 fixpoints after 4 different actions. Largest state had 132 variables. [2018-12-09 10:55:19,137 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:55:19,137 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 10:55:19,137 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 10:55:19,137 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b99bdcdd-79c1-4fcd-bbee-13aff92126da/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 [2018-12-09 10:55:19,143 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:55:19,143 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 10:55:19,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:55:19,202 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 10:55:19,279 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-12-09 10:55:19,280 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 10:55:19,449 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 39 proven. 7 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2018-12-09 10:55:19,464 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-09 10:55:19,465 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [9, 6] total 13 [2018-12-09 10:55:19,465 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:55:19,465 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 10:55:19,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 10:55:19,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-12-09 10:55:19,466 INFO L87 Difference]: Start difference. First operand 1740 states and 2015 transitions. Second operand 6 states. [2018-12-09 10:55:19,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:55:19,515 INFO L93 Difference]: Finished difference Result 2653 states and 3104 transitions. [2018-12-09 10:55:19,515 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 10:55:19,515 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 200 [2018-12-09 10:55:19,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:55:19,518 INFO L225 Difference]: With dead ends: 2653 [2018-12-09 10:55:19,519 INFO L226 Difference]: Without dead ends: 1662 [2018-12-09 10:55:19,520 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 395 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2018-12-09 10:55:19,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1662 states. [2018-12-09 10:55:19,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1662 to 1662. [2018-12-09 10:55:19,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1662 states. [2018-12-09 10:55:19,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1662 states to 1662 states and 1925 transitions. [2018-12-09 10:55:19,567 INFO L78 Accepts]: Start accepts. Automaton has 1662 states and 1925 transitions. Word has length 200 [2018-12-09 10:55:19,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:55:19,567 INFO L480 AbstractCegarLoop]: Abstraction has 1662 states and 1925 transitions. [2018-12-09 10:55:19,567 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 10:55:19,567 INFO L276 IsEmpty]: Start isEmpty. Operand 1662 states and 1925 transitions. [2018-12-09 10:55:19,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2018-12-09 10:55:19,570 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:55:19,570 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-12-09 10:55:19,570 INFO L423 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:55:19,570 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:55:19,571 INFO L82 PathProgramCache]: Analyzing trace with hash -1278825688, now seen corresponding path program 1 times [2018-12-09 10:55:19,571 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:55:19,571 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:55:19,571 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:55:19,571 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:55:19,571 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:55:19,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:55:19,634 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 73 proven. 2 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2018-12-09 10:55:19,634 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 10:55:19,634 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 10:55:19,635 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 263 with the following transitions: [2018-12-09 10:55:19,635 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [41], [46], [48], [49], [50], [53], [55], [56], [57], [58], [59], [62], [63], [64], [65], [68], [70], [73], [80], [83], [85], [94], [98], [102], [105], [108], [110], [116], [118], [121], [136], [137], [138], [139], [140], [141], [142], [144], [149], [152], [153], [154], [155], [157], [162], [164], [165], [173], [174], [203], [206], [210], [216], [219], [223], [224], [228], [231], [233], [236], [246], [249], [253], [254], [257], [258], [259], [260], [261], [263], [264], [265], [266], [267], [268], [269], [270], [271], [273], [274], [275], [277], [278], [279], [280], [281], [282], [285], [286], [287], [288], [291], [292], [295], [296], [297], [298], [299], [300], [305], [306], [307], [308], [309], [310], [311], [312], [313], [315], [316], [317], [318] [2018-12-09 10:55:19,636 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 10:55:19,636 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 10:55:20,710 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 10:55:20,710 INFO L272 AbstractInterpreter]: Visited 128 different actions 834 times. Merged at 22 different actions 99 times. Never widened. Performed 32443 root evaluator evaluations with a maximum evaluation depth of 5. Performed 32443 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 11 fixpoints after 2 different actions. Largest state had 132 variables. [2018-12-09 10:55:20,713 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:55:20,714 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 10:55:20,714 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 10:55:20,714 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b99bdcdd-79c1-4fcd-bbee-13aff92126da/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 [2018-12-09 10:55:20,720 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:55:20,720 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 10:55:20,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:55:20,787 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 10:55:20,830 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-12-09 10:55:20,830 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 10:55:21,058 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 73 proven. 2 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2018-12-09 10:55:21,073 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-09 10:55:21,074 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 5] total 11 [2018-12-09 10:55:21,074 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:55:21,074 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 10:55:21,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 10:55:21,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-12-09 10:55:21,075 INFO L87 Difference]: Start difference. First operand 1662 states and 1925 transitions. Second operand 5 states. [2018-12-09 10:55:21,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:55:21,107 INFO L93 Difference]: Finished difference Result 1898 states and 2203 transitions. [2018-12-09 10:55:21,107 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 10:55:21,107 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 262 [2018-12-09 10:55:21,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:55:21,108 INFO L225 Difference]: With dead ends: 1898 [2018-12-09 10:55:21,108 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 10:55:21,112 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 533 GetRequests, 521 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-12-09 10:55:21,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 10:55:21,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 10:55:21,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 10:55:21,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 10:55:21,113 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 262 [2018-12-09 10:55:21,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:55:21,113 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 10:55:21,113 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 10:55:21,113 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 10:55:21,113 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 10:55:21,117 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 10:55:21,259 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:55:21,259 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:55:21,259 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:55:21,261 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:55:21,263 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:55:21,265 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:55:21,267 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:55:21,278 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:55:21,370 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:55:21,372 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:55:21,377 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:55:21,378 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:55:21,379 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:55:21,380 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:55:21,421 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:55:21,421 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:55:21,424 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:55:21,424 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:55:21,426 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:55:21,426 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:55:21,429 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:55:21,430 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:55:21,432 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:55:21,432 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:55:21,478 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:55:21,479 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:55:21,479 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:55:21,480 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:55:21,480 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:55:21,481 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:55:21,481 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:55:21,481 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:55:21,483 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:55:21,485 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:55:21,486 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:55:21,487 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:55:21,487 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:55:21,488 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:55:21,489 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 10:55:22,049 WARN L180 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 29 [2018-12-09 10:55:22,347 WARN L180 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 30 [2018-12-09 10:55:23,026 WARN L180 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 26 [2018-12-09 10:55:23,469 INFO L451 ceAbstractionStarter]: At program point select_helpersFINAL(lines 486 492) the Hoare annotation is: true [2018-12-09 10:55:23,469 INFO L448 ceAbstractionStarter]: For program point select_helpersEXIT(lines 486 492) no Hoare annotation was computed. [2018-12-09 10:55:23,469 INFO L448 ceAbstractionStarter]: For program point valid_productEXIT(lines 493 501) no Hoare annotation was computed. [2018-12-09 10:55:23,469 INFO L451 ceAbstractionStarter]: At program point valid_productENTRY(lines 493 501) the Hoare annotation is: true [2018-12-09 10:55:23,469 INFO L448 ceAbstractionStarter]: For program point valid_productFINAL(lines 493 501) no Hoare annotation was computed. [2018-12-09 10:55:23,470 INFO L451 ceAbstractionStarter]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 336 360) the Hoare annotation is: true [2018-12-09 10:55:23,470 INFO L444 ceAbstractionStarter]: At program point L350(line 350) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 ~pumpRunning~0)) (< ~waterLevel~0 1) .cse0) (or (< ~waterLevel~0 2) .cse0))) [2018-12-09 10:55:23,470 INFO L448 ceAbstractionStarter]: For program point L348(lines 348 354) no Hoare annotation was computed. [2018-12-09 10:55:23,470 INFO L444 ceAbstractionStarter]: At program point L346(line 346) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 ~pumpRunning~0)) (< ~waterLevel~0 1) .cse0) (or (< ~waterLevel~0 2) .cse0))) [2018-12-09 10:55:23,470 INFO L448 ceAbstractionStarter]: For program point L346-1(line 346) no Hoare annotation was computed. [2018-12-09 10:55:23,470 INFO L448 ceAbstractionStarter]: For program point L344(lines 344 357) no Hoare annotation was computed. [2018-12-09 10:55:23,470 INFO L448 ceAbstractionStarter]: For program point L344-1(lines 336 360) no Hoare annotation was computed. [2018-12-09 10:55:23,470 INFO L451 ceAbstractionStarter]: At program point L342(line 342) the Hoare annotation is: true [2018-12-09 10:55:23,470 INFO L448 ceAbstractionStarter]: For program point L342-1(line 342) no Hoare annotation was computed. [2018-12-09 10:55:23,470 INFO L448 ceAbstractionStarter]: For program point __utac_acc__Specification4_spec__1EXIT(lines 336 360) no Hoare annotation was computed. [2018-12-09 10:55:23,470 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 575 597) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-09 10:55:23,470 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 575 597) no Hoare annotation was computed. [2018-12-09 10:55:23,471 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 575 597) no Hoare annotation was computed. [2018-12-09 10:55:23,471 INFO L444 ceAbstractionStarter]: At program point L587(line 587) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= main_~tmp~7 ~systemActive~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-09 10:55:23,471 INFO L444 ceAbstractionStarter]: At program point L587-1(line 587) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= main_~tmp~7 ~systemActive~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-09 10:55:23,471 INFO L448 ceAbstractionStarter]: For program point L585(lines 585 592) no Hoare annotation was computed. [2018-12-09 10:55:23,471 INFO L448 ceAbstractionStarter]: For program point L585-1(lines 585 592) no Hoare annotation was computed. [2018-12-09 10:55:23,471 INFO L448 ceAbstractionStarter]: For program point L583(line 583) no Hoare annotation was computed. [2018-12-09 10:55:23,471 INFO L444 ceAbstractionStarter]: At program point L582(line 582) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-09 10:55:23,471 INFO L444 ceAbstractionStarter]: At program point L581(line 581) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-09 10:55:23,471 INFO L444 ceAbstractionStarter]: At program point L581-1(line 581) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-09 10:55:23,471 INFO L448 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 250 258) no Hoare annotation was computed. [2018-12-09 10:55:23,471 INFO L451 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 250 258) the Hoare annotation is: true [2018-12-09 10:55:23,471 INFO L448 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 250 258) no Hoare annotation was computed. [2018-12-09 10:55:23,472 INFO L451 ceAbstractionStarter]: At program point L321(line 321) the Hoare annotation is: true [2018-12-09 10:55:23,472 INFO L448 ceAbstractionStarter]: For program point L323-2(lines 323 327) no Hoare annotation was computed. [2018-12-09 10:55:23,472 INFO L448 ceAbstractionStarter]: For program point L321-1(line 321) no Hoare annotation was computed. [2018-12-09 10:55:23,472 INFO L451 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 314 332) the Hoare annotation is: true [2018-12-09 10:55:23,472 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 314 332) no Hoare annotation was computed. [2018-12-09 10:55:23,472 INFO L448 ceAbstractionStarter]: For program point L323(lines 323 327) no Hoare annotation was computed. [2018-12-09 10:55:23,472 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 314 332) no Hoare annotation was computed. [2018-12-09 10:55:23,472 INFO L448 ceAbstractionStarter]: For program point select_featuresEXIT(lines 479 485) no Hoare annotation was computed. [2018-12-09 10:55:23,472 INFO L451 ceAbstractionStarter]: At program point select_featuresFINAL(lines 479 485) the Hoare annotation is: true [2018-12-09 10:55:23,472 INFO L444 ceAbstractionStarter]: At program point runTestENTRY(lines 565 574) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-09 10:55:23,472 INFO L448 ceAbstractionStarter]: For program point runTestEXIT(lines 565 574) no Hoare annotation was computed. [2018-12-09 10:55:23,472 INFO L448 ceAbstractionStarter]: For program point runTestFINAL(lines 565 574) no Hoare annotation was computed. [2018-12-09 10:55:23,472 INFO L451 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 239 249) the Hoare annotation is: true [2018-12-09 10:55:23,472 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 239 249) no Hoare annotation was computed. [2018-12-09 10:55:23,472 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 239 249) no Hoare annotation was computed. [2018-12-09 10:55:23,473 INFO L451 ceAbstractionStarter]: At program point L244(line 244) the Hoare annotation is: true [2018-12-09 10:55:23,473 INFO L448 ceAbstractionStarter]: For program point L244-1(line 244) no Hoare annotation was computed. [2018-12-09 10:55:23,473 INFO L444 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 231 238) the Hoare annotation is: (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 1) (= |old(~pumpRunning~0)| 0) (not (= ~systemActive~0 1))) [2018-12-09 10:55:23,473 INFO L448 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 231 238) no Hoare annotation was computed. [2018-12-09 10:55:23,473 INFO L448 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 231 238) no Hoare annotation was computed. [2018-12-09 10:55:23,473 INFO L448 ceAbstractionStarter]: For program point L445(lines 445 451) no Hoare annotation was computed. [2018-12-09 10:55:23,473 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 441 454) no Hoare annotation was computed. [2018-12-09 10:55:23,473 INFO L451 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 441 454) the Hoare annotation is: true [2018-12-09 10:55:23,473 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 441 454) no Hoare annotation was computed. [2018-12-09 10:55:23,473 INFO L444 ceAbstractionStarter]: At program point L190(line 190) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or (and (<= 1 processEnvironment_~tmp~2) (= |old(~pumpRunning~0)| ~pumpRunning~0)) .cse0 .cse1) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1))) [2018-12-09 10:55:23,473 INFO L448 ceAbstractionStarter]: For program point L188(lines 188 196) no Hoare annotation was computed. [2018-12-09 10:55:23,473 INFO L444 ceAbstractionStarter]: At program point L186(line 186) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse0 .cse1))) [2018-12-09 10:55:23,473 INFO L448 ceAbstractionStarter]: For program point L186-1(line 186) no Hoare annotation was computed. [2018-12-09 10:55:23,474 INFO L448 ceAbstractionStarter]: For program point L184(lines 184 201) no Hoare annotation was computed. [2018-12-09 10:55:23,474 INFO L448 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 180 204) no Hoare annotation was computed. [2018-12-09 10:55:23,474 INFO L444 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 180 204) the Hoare annotation is: (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-12-09 10:55:23,474 INFO L444 ceAbstractionStarter]: At program point L199(line 199) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (or .cse0 (= |old(~pumpRunning~0)| 0) .cse1))) [2018-12-09 10:55:23,474 INFO L448 ceAbstractionStarter]: For program point L199-1(lines 180 204) no Hoare annotation was computed. [2018-12-09 10:55:23,474 INFO L444 ceAbstractionStarter]: At program point L194(line 194) the Hoare annotation is: (or (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-12-09 10:55:23,474 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 146 152) no Hoare annotation was computed. [2018-12-09 10:55:23,474 INFO L451 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 146 152) the Hoare annotation is: true [2018-12-09 10:55:23,474 INFO L444 ceAbstractionStarter]: At program point L97(lines 54 99) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse0) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-12-09 10:55:23,474 INFO L448 ceAbstractionStarter]: For program point L64(lines 64 70) no Hoare annotation was computed. [2018-12-09 10:55:23,474 INFO L444 ceAbstractionStarter]: At program point testENTRY(lines 44 107) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-09 10:55:23,474 INFO L448 ceAbstractionStarter]: For program point L64-1(lines 64 70) no Hoare annotation was computed. [2018-12-09 10:55:23,474 INFO L448 ceAbstractionStarter]: For program point L56(lines 56 60) no Hoare annotation was computed. [2018-12-09 10:55:23,474 INFO L448 ceAbstractionStarter]: For program point testFINAL(lines 44 107) no Hoare annotation was computed. [2018-12-09 10:55:23,475 INFO L444 ceAbstractionStarter]: At program point L100(lines 53 101) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-09 10:55:23,475 INFO L448 ceAbstractionStarter]: For program point L90(lines 90 94) no Hoare annotation was computed. [2018-12-09 10:55:23,475 INFO L444 ceAbstractionStarter]: At program point L90-2(lines 84 95) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse0) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-12-09 10:55:23,475 INFO L448 ceAbstractionStarter]: For program point L55(lines 54 99) no Hoare annotation was computed. [2018-12-09 10:55:23,475 INFO L448 ceAbstractionStarter]: For program point L84(lines 84 95) no Hoare annotation was computed. [2018-12-09 10:55:23,475 INFO L444 ceAbstractionStarter]: At program point L76(line 76) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse0) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-12-09 10:55:23,475 INFO L448 ceAbstractionStarter]: For program point L74(lines 74 80) no Hoare annotation was computed. [2018-12-09 10:55:23,475 INFO L448 ceAbstractionStarter]: For program point L74-1(lines 74 80) no Hoare annotation was computed. [2018-12-09 10:55:23,475 INFO L448 ceAbstractionStarter]: For program point testEXIT(lines 44 107) no Hoare annotation was computed. [2018-12-09 10:55:23,475 INFO L444 ceAbstractionStarter]: At program point L66(line 66) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse0) (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-12-09 10:55:23,475 INFO L444 ceAbstractionStarter]: At program point activatePump__wrappee__lowWaterSensorENTRY(lines 205 212) the Hoare annotation is: (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1))) (< ~waterLevel~0 2)) [2018-12-09 10:55:23,475 INFO L448 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorFINAL(lines 205 212) no Hoare annotation was computed. [2018-12-09 10:55:23,475 INFO L448 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 205 212) no Hoare annotation was computed. [2018-12-09 10:55:23,475 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 455 463) no Hoare annotation was computed. [2018-12-09 10:55:23,476 INFO L451 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 455 463) the Hoare annotation is: true [2018-12-09 10:55:23,476 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 455 463) no Hoare annotation was computed. [2018-12-09 10:55:23,476 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 10:55:23,476 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)) [2018-12-09 10:55:23,476 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 10:55:23,476 INFO L444 ceAbstractionStarter]: At program point L225(line 225) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 2) (not (= ~systemActive~0 1))) [2018-12-09 10:55:23,476 INFO L448 ceAbstractionStarter]: For program point L225-1(lines 214 230) no Hoare annotation was computed. [2018-12-09 10:55:23,476 INFO L448 ceAbstractionStarter]: For program point L221(lines 221 227) no Hoare annotation was computed. [2018-12-09 10:55:23,476 INFO L448 ceAbstractionStarter]: For program point activatePumpEXIT(lines 214 230) no Hoare annotation was computed. [2018-12-09 10:55:23,476 INFO L444 ceAbstractionStarter]: At program point L219(line 219) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 2) (not (= ~systemActive~0 1))) [2018-12-09 10:55:23,476 INFO L448 ceAbstractionStarter]: For program point L219-1(line 219) no Hoare annotation was computed. [2018-12-09 10:55:23,476 INFO L444 ceAbstractionStarter]: At program point activatePumpENTRY(lines 214 230) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 2) (not (= ~systemActive~0 1))) [2018-12-09 10:55:23,476 INFO L451 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 432 440) the Hoare annotation is: true [2018-12-09 10:55:23,476 INFO L448 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 432 440) no Hoare annotation was computed. [2018-12-09 10:55:23,476 INFO L448 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 432 440) no Hoare annotation was computed. [2018-12-09 10:55:23,477 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 295 313) no Hoare annotation was computed. [2018-12-09 10:55:23,477 INFO L448 ceAbstractionStarter]: For program point L304(lines 304 308) no Hoare annotation was computed. [2018-12-09 10:55:23,477 INFO L451 ceAbstractionStarter]: At program point L302(line 302) the Hoare annotation is: true [2018-12-09 10:55:23,477 INFO L448 ceAbstractionStarter]: For program point L304-2(lines 304 308) no Hoare annotation was computed. [2018-12-09 10:55:23,477 INFO L448 ceAbstractionStarter]: For program point L302-1(line 302) no Hoare annotation was computed. [2018-12-09 10:55:23,477 INFO L451 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 295 313) the Hoare annotation is: true [2018-12-09 10:55:23,477 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 295 313) no Hoare annotation was computed. [2018-12-09 10:55:23,477 INFO L444 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 388 399) the Hoare annotation is: (let ((.cse3 (not (= ~waterLevel~0 1))) (.cse0 (not (= |old(~methaneLevelCritical~0)| 1))) (.cse1 (not (= 0 ~pumpRunning~0))) (.cse4 (= ~methaneLevelCritical~0 1)) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse2 (not (= ~systemActive~0 1))) (.cse7 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse5 (not (= ~waterLevel~0 2)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or (or .cse0 .cse5) (or .cse6 .cse4) .cse2) (or .cse1 .cse6 .cse2 .cse3 .cse7) (or .cse0 .cse1 .cse4 .cse2 .cse5) (or .cse6 .cse2 .cse7 .cse5))) [2018-12-09 10:55:23,477 INFO L448 ceAbstractionStarter]: For program point L392-1(lines 388 399) no Hoare annotation was computed. [2018-12-09 10:55:23,477 INFO L448 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 388 399) no Hoare annotation was computed. [2018-12-09 10:55:23,477 INFO L451 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 400 408) the Hoare annotation is: true [2018-12-09 10:55:23,477 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 400 408) no Hoare annotation was computed. [2018-12-09 10:55:23,477 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 400 408) no Hoare annotation was computed. [2018-12-09 10:55:23,477 INFO L451 ceAbstractionStarter]: At program point L514-2(lines 514 528) the Hoare annotation is: true [2018-12-09 10:55:23,478 INFO L448 ceAbstractionStarter]: For program point cleanupEXIT(lines 504 533) no Hoare annotation was computed. [2018-12-09 10:55:23,478 INFO L451 ceAbstractionStarter]: At program point L510(line 510) the Hoare annotation is: true [2018-12-09 10:55:23,478 INFO L448 ceAbstractionStarter]: For program point L510-1(line 510) no Hoare annotation was computed. [2018-12-09 10:55:23,478 INFO L451 ceAbstractionStarter]: At program point cleanupENTRY(lines 504 533) the Hoare annotation is: true [2018-12-09 10:55:23,478 INFO L451 ceAbstractionStarter]: At program point L529(lines 504 533) the Hoare annotation is: true [2018-12-09 10:55:23,478 INFO L448 ceAbstractionStarter]: For program point L525(line 525) no Hoare annotation was computed. [2018-12-09 10:55:23,478 INFO L448 ceAbstractionStarter]: For program point L518(lines 518 522) no Hoare annotation was computed. [2018-12-09 10:55:23,478 INFO L451 ceAbstractionStarter]: At program point L518-1(lines 518 522) the Hoare annotation is: true [2018-12-09 10:55:23,478 INFO L448 ceAbstractionStarter]: For program point L515(line 515) no Hoare annotation was computed. [2018-12-09 10:55:23,478 INFO L444 ceAbstractionStarter]: At program point L128(line 128) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (or (< |old(~waterLevel~0)| 2) .cse0) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (or (not (= 0 |old(~pumpRunning~0)|)) (< |old(~waterLevel~0)| 1) .cse0))) [2018-12-09 10:55:23,478 INFO L448 ceAbstractionStarter]: For program point L126(lines 125 144) no Hoare annotation was computed. [2018-12-09 10:55:23,478 INFO L444 ceAbstractionStarter]: At program point timeShiftENTRY(lines 122 145) the Hoare annotation is: (let ((.cse1 (not (= ~systemActive~0 1))) (.cse0 (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)))) (and (or .cse0 (or (< |old(~waterLevel~0)| 2) .cse1)) (or (not (= 0 |old(~pumpRunning~0)|)) (< |old(~waterLevel~0)| 1) .cse1 .cse0))) [2018-12-09 10:55:23,478 INFO L448 ceAbstractionStarter]: For program point timeShiftEXIT(lines 122 145) no Hoare annotation was computed. [2018-12-09 10:55:23,478 INFO L444 ceAbstractionStarter]: At program point L135(line 135) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (< |old(~waterLevel~0)| 1) .cse0 (and (= ~waterLevel~0 |old(~waterLevel~0)|) .cse1)) (or (and (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse1) (or (< |old(~waterLevel~0)| 2) .cse0)))) [2018-12-09 10:55:23,479 INFO L448 ceAbstractionStarter]: For program point timeShiftFINAL(lines 122 145) no Hoare annotation was computed. [2018-12-09 10:55:23,479 INFO L444 ceAbstractionStarter]: At program point L133(lines 133 139) the Hoare annotation is: (let ((.cse2 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse3 (= ~systemActive~0 1))) (let ((.cse0 (and (<= 2 ~waterLevel~0) .cse2 .cse3)) (.cse1 (not .cse3))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 (< |old(~waterLevel~0)| 1) .cse1 (and .cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (or .cse0 (and (= 0 ~pumpRunning~0) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) (or (< |old(~waterLevel~0)| 2) .cse1))))) [2018-12-09 10:55:23,479 INFO L448 ceAbstractionStarter]: For program point L368-1(lines 364 375) no Hoare annotation was computed. [2018-12-09 10:55:23,479 INFO L444 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 364 375) the Hoare annotation is: (or (or (= ~pumpRunning~0 0) (< |old(~waterLevel~0)| 2) (not (= ~systemActive~0 1))) (= ~waterLevel~0 |old(~waterLevel~0)|)) [2018-12-09 10:55:23,479 INFO L448 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 364 375) no Hoare annotation was computed. [2018-12-09 10:55:23,479 INFO L448 ceAbstractionStarter]: For program point setupEXIT(lines 558 564) no Hoare annotation was computed. [2018-12-09 10:55:23,479 INFO L451 ceAbstractionStarter]: At program point setupFINAL(lines 558 564) the Hoare annotation is: true [2018-12-09 10:55:23,479 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 10:55:23,479 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)) [2018-12-09 10:55:23,479 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 10:55:23,479 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 10:55:23,479 INFO L444 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 154 178) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-12-09 10:55:23,479 INFO L444 ceAbstractionStarter]: At program point L160(line 160) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-12-09 10:55:23,479 INFO L448 ceAbstractionStarter]: For program point L160-1(line 160) no Hoare annotation was computed. [2018-12-09 10:55:23,480 INFO L448 ceAbstractionStarter]: For program point L158(lines 158 175) no Hoare annotation was computed. [2018-12-09 10:55:23,480 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 154 178) no Hoare annotation was computed. [2018-12-09 10:55:23,480 INFO L444 ceAbstractionStarter]: At program point L173(line 173) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-12-09 10:55:23,480 INFO L448 ceAbstractionStarter]: For program point L173-1(lines 154 178) no Hoare annotation was computed. [2018-12-09 10:55:23,480 INFO L444 ceAbstractionStarter]: At program point L168(line 168) the Hoare annotation is: (or (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-12-09 10:55:23,480 INFO L444 ceAbstractionStarter]: At program point L164(line 164) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-12-09 10:55:23,480 INFO L448 ceAbstractionStarter]: For program point L162(lines 162 170) no Hoare annotation was computed. [2018-12-09 10:55:23,480 INFO L448 ceAbstractionStarter]: For program point waterRiseEXIT(lines 376 387) no Hoare annotation was computed. [2018-12-09 10:55:23,480 INFO L448 ceAbstractionStarter]: For program point L380-1(lines 376 387) no Hoare annotation was computed. [2018-12-09 10:55:23,480 INFO L444 ceAbstractionStarter]: At program point waterRiseENTRY(lines 376 387) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 (< |old(~waterLevel~0)| 2)) (or (< |old(~waterLevel~0)| 1) .cse0 (or (not (= 0 ~pumpRunning~0)) .cse1)))) [2018-12-09 10:55:23,480 INFO L448 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 965 972) no Hoare annotation was computed. [2018-12-09 10:55:23,480 INFO L448 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 969) no Hoare annotation was computed. [2018-12-09 10:55:23,480 INFO L451 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 965 972) the Hoare annotation is: true [2018-12-09 10:55:23,480 INFO L448 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 965 972) no Hoare annotation was computed. [2018-12-09 10:55:23,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 10:55:23 BoogieIcfgContainer [2018-12-09 10:55:23,490 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 10:55:23,490 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 10:55:23,490 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 10:55:23,490 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 10:55:23,491 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:55:01" (3/4) ... [2018-12-09 10:55:23,494 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 10:55:23,499 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-12-09 10:55:23,499 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-12-09 10:55:23,499 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification4_spec__1 [2018-12-09 10:55:23,499 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 10:55:23,499 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-12-09 10:55:23,499 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterLevel [2018-12-09 10:55:23,499 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-12-09 10:55:23,499 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-12-09 10:55:23,499 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2018-12-09 10:55:23,499 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-12-09 10:55:23,499 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-12-09 10:55:23,499 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-12-09 10:55:23,500 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-12-09 10:55:23,500 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-12-09 10:55:23,500 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump__wrappee__lowWaterSensor [2018-12-09 10:55:23,500 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterSensorDry [2018-12-09 10:55:23,500 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 10:55:23,500 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-12-09 10:55:23,500 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure getWaterLevel [2018-12-09 10:55:23,500 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-12-09 10:55:23,500 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-12-09 10:55:23,500 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2018-12-09 10:55:23,500 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-12-09 10:55:23,500 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-12-09 10:55:23,500 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-12-09 10:55:23,500 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-12-09 10:55:23,501 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2018-12-09 10:55:23,501 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-12-09 10:55:23,501 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-12-09 10:55:23,506 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 46 nodes and edges [2018-12-09 10:55:23,507 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2018-12-09 10:55:23,507 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-12-09 10:55:23,507 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-09 10:55:23,508 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-09 10:55:23,508 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 10:55:23,531 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((0 == pumpRunning && 1 <= waterLevel) && splverifierCounter == 0) || !(0 == \old(pumpRunning))) || (2 <= waterLevel && splverifierCounter == 0)) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-12-09 10:55:23,531 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(0 == \old(pumpRunning)) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-12-09 10:55:23,554 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b99bdcdd-79c1-4fcd-bbee-13aff92126da/bin-2019/utaipan/witness.graphml [2018-12-09 10:55:23,554 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 10:55:23,554 INFO L168 Benchmark]: Toolchain (without parser) took 22385.88 ms. Allocated memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: 1.3 GB). Free memory was 948.1 MB in the beginning and 1.8 GB in the end (delta: -867.4 MB). Peak memory consumption was 392.4 MB. Max. memory is 11.5 GB. [2018-12-09 10:55:23,555 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 10:55:23,555 INFO L168 Benchmark]: CACSL2BoogieTranslator took 335.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -140.9 MB). Peak memory consumption was 28.5 MB. Max. memory is 11.5 GB. [2018-12-09 10:55:23,555 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.75 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-09 10:55:23,555 INFO L168 Benchmark]: Boogie Preprocessor took 24.63 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 10:55:23,556 INFO L168 Benchmark]: RCFGBuilder took 337.13 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 50.3 MB). Peak memory consumption was 50.3 MB. Max. memory is 11.5 GB. [2018-12-09 10:55:23,556 INFO L168 Benchmark]: TraceAbstraction took 21597.85 ms. Allocated memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: 1.2 GB). Free memory was 1.0 GB in the beginning and 1.8 GB in the end (delta: -806.4 MB). Peak memory consumption was 1.3 GB. Max. memory is 11.5 GB. [2018-12-09 10:55:23,556 INFO L168 Benchmark]: Witness Printer took 63.85 ms. Allocated memory is still 2.3 GB. Free memory was 1.8 GB in the beginning and 1.8 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2018-12-09 10:55:23,557 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 335.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -140.9 MB). Peak memory consumption was 28.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 23.75 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.63 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 337.13 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 50.3 MB). Peak memory consumption was 50.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 21597.85 ms. Allocated memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: 1.2 GB). Free memory was 1.0 GB in the beginning and 1.8 GB in the end (delta: -806.4 MB). Peak memory consumption was 1.3 GB. Max. memory is 11.5 GB. * Witness Printer took 63.85 ms. Allocated memory is still 2.3 GB. Free memory was 1.8 GB in the beginning and 1.8 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 969]: 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: 514]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 504]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: ((((((0 == pumpRunning && 1 <= waterLevel) && splverifierCounter == 0) || !(0 == \old(pumpRunning))) || (2 <= waterLevel && splverifierCounter == 0)) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: ((!(0 == \old(pumpRunning)) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 30 procedures, 156 locations, 1 error locations. SAFE Result, 21.5s OverallTime, 15 OverallIterations, 4 TraceHistogramMax, 9.7s AutomataDifference, 0.0s DeadEndRemovalTime, 2.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 2914 SDtfs, 3736 SDslu, 9925 SDs, 0 SdLazy, 6168 SolverSat, 1593 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.5s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 2651 GetRequests, 2423 SyntacticMatches, 25 SemanticMatches, 203 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 874 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1740occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 4.9s AbstIntTime, 9 AbstIntIterations, 4 AbstIntStrong, 0.9982931659497281 AbsIntWeakeningRatio, 0.8853288364249579 AbsIntAvgWeakeningVarsNumRemoved, 41.35581787521079 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 15 MinimizatonAttempts, 390 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 64 LocationsWithAnnotation, 3944 PreInvPairs, 4075 NumberOfFragments, 1046 HoareAnnotationTreeSize, 3944 FomulaSimplifications, 9561 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 64 FomulaSimplificationsInter, 19104 FormulaSimplificationTreeSizeReductionInter, 1.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 2987 NumberOfCodeBlocks, 2987 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 3914 ConstructedInterpolants, 0 QuantifiedInterpolants, 903438 SizeOfPredicates, 22 NumberOfNonLiveVariables, 4719 ConjunctsInSsa, 59 ConjunctsInUnsatCore, 25 InterpolantComputations, 10 PerfectInterpolantSequences, 1498/1591 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...