./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product63_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_6d0c22e4-3c9e-4c5f-b6ca-974670eb001a/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6d0c22e4-3c9e-4c5f-b6ca-974670eb001a/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6d0c22e4-3c9e-4c5f-b6ca-974670eb001a/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6d0c22e4-3c9e-4c5f-b6ca-974670eb001a/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product63_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_6d0c22e4-3c9e-4c5f-b6ca-974670eb001a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6d0c22e4-3c9e-4c5f-b6ca-974670eb001a/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 3f5feda30a80cf6aabd7a2a811c7fc0f92333d0d .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 15:35:29,451 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 15:35:29,452 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 15:35:29,460 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 15:35:29,460 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 15:35:29,461 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 15:35:29,462 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 15:35:29,463 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 15:35:29,464 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 15:35:29,464 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 15:35:29,465 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 15:35:29,465 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 15:35:29,466 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 15:35:29,467 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 15:35:29,467 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 15:35:29,468 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 15:35:29,468 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 15:35:29,470 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 15:35:29,471 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 15:35:29,472 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 15:35:29,473 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 15:35:29,474 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 15:35:29,475 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 15:35:29,475 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 15:35:29,475 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 15:35:29,476 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 15:35:29,477 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 15:35:29,477 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 15:35:29,478 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 15:35:29,479 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 15:35:29,479 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 15:35:29,479 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 15:35:29,480 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 15:35:29,480 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 15:35:29,480 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 15:35:29,480 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 15:35:29,481 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6d0c22e4-3c9e-4c5f-b6ca-974670eb001a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 15:35:29,491 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 15:35:29,491 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 15:35:29,492 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 15:35:29,492 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 15:35:29,492 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 15:35:29,492 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 15:35:29,493 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 15:35:29,493 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 15:35:29,493 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 15:35:29,493 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 15:35:29,493 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 15:35:29,493 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 15:35:29,493 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 15:35:29,494 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 15:35:29,494 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 15:35:29,494 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 15:35:29,494 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 15:35:29,494 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 15:35:29,494 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 15:35:29,495 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 15:35:29,495 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 15:35:29,495 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 15:35:29,495 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 15:35:29,495 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 15:35:29,495 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 15:35:29,495 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 15:35:29,495 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 15:35:29,496 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 15:35:29,496 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 15:35:29,496 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 15:35:29,496 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 15:35:29,496 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 15:35:29,496 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 15:35:29,496 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 15:35:29,496 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 15:35:29,496 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 15:35:29,496 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_6d0c22e4-3c9e-4c5f-b6ca-974670eb001a/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 -> 3f5feda30a80cf6aabd7a2a811c7fc0f92333d0d [2018-12-09 15:35:29,519 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 15:35:29,528 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 15:35:29,530 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 15:35:29,532 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 15:35:29,532 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 15:35:29,533 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6d0c22e4-3c9e-4c5f-b6ca-974670eb001a/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product63_true-unreach-call_false-termination.cil.c [2018-12-09 15:35:29,571 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6d0c22e4-3c9e-4c5f-b6ca-974670eb001a/bin-2019/utaipan/data/fb313e450/800cbe7b978b4a9dad970f9f0633132e/FLAGdc4114dd5 [2018-12-09 15:35:29,889 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 15:35:29,889 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6d0c22e4-3c9e-4c5f-b6ca-974670eb001a/sv-benchmarks/c/product-lines/minepump_spec4_product63_true-unreach-call_false-termination.cil.c [2018-12-09 15:35:29,895 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6d0c22e4-3c9e-4c5f-b6ca-974670eb001a/bin-2019/utaipan/data/fb313e450/800cbe7b978b4a9dad970f9f0633132e/FLAGdc4114dd5 [2018-12-09 15:35:30,302 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6d0c22e4-3c9e-4c5f-b6ca-974670eb001a/bin-2019/utaipan/data/fb313e450/800cbe7b978b4a9dad970f9f0633132e [2018-12-09 15:35:30,305 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 15:35:30,307 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 15:35:30,307 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 15:35:30,308 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 15:35:30,311 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 15:35:30,312 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:35:30" (1/1) ... [2018-12-09 15:35:30,315 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c1a3593 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:35:30, skipping insertion in model container [2018-12-09 15:35:30,316 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:35:30" (1/1) ... [2018-12-09 15:35:30,323 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 15:35:30,347 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 15:35:30,496 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 15:35:30,504 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 15:35:30,581 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 15:35:30,597 INFO L195 MainTranslator]: Completed translation [2018-12-09 15:35:30,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:35:30 WrapperNode [2018-12-09 15:35:30,597 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 15:35:30,598 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 15:35:30,598 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 15:35:30,598 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 15:35:30,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:35:30" (1/1) ... [2018-12-09 15:35:30,612 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:35:30" (1/1) ... [2018-12-09 15:35:30,617 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 15:35:30,618 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 15:35:30,618 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 15:35:30,618 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 15:35:30,623 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:35:30" (1/1) ... [2018-12-09 15:35:30,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:35:30" (1/1) ... [2018-12-09 15:35:30,626 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:35:30" (1/1) ... [2018-12-09 15:35:30,626 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:35:30" (1/1) ... [2018-12-09 15:35:30,632 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:35:30" (1/1) ... [2018-12-09 15:35:30,636 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:35:30" (1/1) ... [2018-12-09 15:35:30,637 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:35:30" (1/1) ... [2018-12-09 15:35:30,639 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 15:35:30,639 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 15:35:30,639 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 15:35:30,639 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 15:35:30,640 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:35:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d0c22e4-3c9e-4c5f-b6ca-974670eb001a/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 15:35:30,678 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-09 15:35:30,678 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-09 15:35:30,678 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2018-12-09 15:35:30,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2018-12-09 15:35:30,678 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 15:35:30,678 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 15:35:30,678 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2018-12-09 15:35:30,679 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2018-12-09 15:35:30,679 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-12-09 15:35:30,679 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-12-09 15:35:30,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 15:35:30,679 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-09 15:35:30,679 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-09 15:35:30,679 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-09 15:35:30,679 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-09 15:35:30,679 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-09 15:35:30,680 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-09 15:35:30,680 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-09 15:35:30,680 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-09 15:35:30,680 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-09 15:35:30,680 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-09 15:35:30,680 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2018-12-09 15:35:30,680 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2018-12-09 15:35:30,680 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-12-09 15:35:30,680 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-12-09 15:35:30,680 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-09 15:35:30,680 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-09 15:35:30,681 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-09 15:35:30,681 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-09 15:35:30,681 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-12-09 15:35:30,681 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-12-09 15:35:30,681 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-09 15:35:30,681 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-09 15:35:30,681 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-09 15:35:30,681 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-09 15:35:30,681 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-09 15:35:30,681 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-09 15:35:30,681 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-09 15:35:30,682 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-09 15:35:30,682 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-12-09 15:35:30,682 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-12-09 15:35:30,682 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-09 15:35:30,682 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-09 15:35:30,682 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-09 15:35:30,682 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-09 15:35:30,682 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-09 15:35:30,682 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-09 15:35:30,683 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2018-12-09 15:35:30,683 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2018-12-09 15:35:30,683 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-09 15:35:30,683 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-09 15:35:30,683 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-09 15:35:30,683 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-09 15:35:30,683 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-12-09 15:35:30,683 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-12-09 15:35:30,683 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-09 15:35:30,684 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-09 15:35:30,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-09 15:35:30,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 15:35:30,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 15:35:30,684 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-09 15:35:30,684 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-09 15:35:30,684 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-09 15:35:30,684 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-09 15:35:30,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 15:35:30,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 15:35:30,986 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 15:35:30,986 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-09 15:35:30,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:35:30 BoogieIcfgContainer [2018-12-09 15:35:30,987 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 15:35:30,987 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 15:35:30,987 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 15:35:30,989 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 15:35:30,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:35:30" (1/3) ... [2018-12-09 15:35:30,990 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1423e12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:35:30, skipping insertion in model container [2018-12-09 15:35:30,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:35:30" (2/3) ... [2018-12-09 15:35:30,990 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1423e12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:35:30, skipping insertion in model container [2018-12-09 15:35:30,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:35:30" (3/3) ... [2018-12-09 15:35:30,991 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product63_true-unreach-call_false-termination.cil.c [2018-12-09 15:35:30,997 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 15:35:31,002 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 15:35:31,011 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 15:35:31,031 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 15:35:31,031 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 15:35:31,031 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 15:35:31,031 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 15:35:31,031 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 15:35:31,031 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 15:35:31,031 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 15:35:31,031 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 15:35:31,043 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states. [2018-12-09 15:35:31,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-09 15:35:31,048 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:35:31,049 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 15:35:31,050 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:35:31,053 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:35:31,053 INFO L82 PathProgramCache]: Analyzing trace with hash 279334901, now seen corresponding path program 1 times [2018-12-09 15:35:31,055 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:35:31,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:35:31,083 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:35:31,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:35:31,084 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:35:31,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:35:31,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:35:31,199 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:35:31,199 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 15:35:31,199 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 15:35:31,202 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 15:35:31,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 15:35:31,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 15:35:31,211 INFO L87 Difference]: Start difference. First operand 172 states. Second operand 2 states. [2018-12-09 15:35:31,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:35:31,237 INFO L93 Difference]: Finished difference Result 318 states and 395 transitions. [2018-12-09 15:35:31,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 15:35:31,238 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-09 15:35:31,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:35:31,245 INFO L225 Difference]: With dead ends: 318 [2018-12-09 15:35:31,245 INFO L226 Difference]: Without dead ends: 159 [2018-12-09 15:35:31,247 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 15:35:31,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2018-12-09 15:35:31,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2018-12-09 15:35:31,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2018-12-09 15:35:31,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 189 transitions. [2018-12-09 15:35:31,279 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 189 transitions. Word has length 46 [2018-12-09 15:35:31,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:35:31,280 INFO L480 AbstractCegarLoop]: Abstraction has 159 states and 189 transitions. [2018-12-09 15:35:31,280 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 15:35:31,280 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 189 transitions. [2018-12-09 15:35:31,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-09 15:35:31,281 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:35:31,282 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 15:35:31,282 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:35:31,282 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:35:31,282 INFO L82 PathProgramCache]: Analyzing trace with hash -1491406306, now seen corresponding path program 1 times [2018-12-09 15:35:31,282 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:35:31,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:35:31,283 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:35:31,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:35:31,283 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:35:31,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:35:31,341 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 15:35:31,341 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:35:31,341 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 15:35:31,342 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 15:35:31,343 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 15:35:31,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 15:35:31,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 15:35:31,344 INFO L87 Difference]: Start difference. First operand 159 states and 189 transitions. Second operand 3 states. [2018-12-09 15:35:31,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:35:31,363 INFO L93 Difference]: Finished difference Result 261 states and 309 transitions. [2018-12-09 15:35:31,364 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 15:35:31,364 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-09 15:35:31,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:35:31,366 INFO L225 Difference]: With dead ends: 261 [2018-12-09 15:35:31,366 INFO L226 Difference]: Without dead ends: 150 [2018-12-09 15:35:31,367 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 15:35:31,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2018-12-09 15:35:31,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2018-12-09 15:35:31,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2018-12-09 15:35:31,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 177 transitions. [2018-12-09 15:35:31,379 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 177 transitions. Word has length 47 [2018-12-09 15:35:31,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:35:31,379 INFO L480 AbstractCegarLoop]: Abstraction has 150 states and 177 transitions. [2018-12-09 15:35:31,379 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 15:35:31,379 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 177 transitions. [2018-12-09 15:35:31,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-12-09 15:35:31,381 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:35:31,381 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 15:35:31,381 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:35:31,381 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:35:31,381 INFO L82 PathProgramCache]: Analyzing trace with hash 2060660655, now seen corresponding path program 1 times [2018-12-09 15:35:31,381 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:35:31,382 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:35:31,382 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:35:31,382 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:35:31,382 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:35:31,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:35:31,460 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 15:35:31,460 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:35:31,460 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 15:35:31,460 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 15:35:31,461 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 15:35:31,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 15:35:31,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-09 15:35:31,461 INFO L87 Difference]: Start difference. First operand 150 states and 177 transitions. Second operand 7 states. [2018-12-09 15:35:31,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:35:31,749 INFO L93 Difference]: Finished difference Result 452 states and 549 transitions. [2018-12-09 15:35:31,749 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 15:35:31,749 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2018-12-09 15:35:31,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:35:31,752 INFO L225 Difference]: With dead ends: 452 [2018-12-09 15:35:31,753 INFO L226 Difference]: Without dead ends: 326 [2018-12-09 15:35:31,754 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-09 15:35:31,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2018-12-09 15:35:31,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 318. [2018-12-09 15:35:31,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2018-12-09 15:35:31,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 386 transitions. [2018-12-09 15:35:31,785 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 386 transitions. Word has length 51 [2018-12-09 15:35:31,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:35:31,785 INFO L480 AbstractCegarLoop]: Abstraction has 318 states and 386 transitions. [2018-12-09 15:35:31,785 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 15:35:31,785 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 386 transitions. [2018-12-09 15:35:31,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-12-09 15:35:31,787 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:35:31,787 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 15:35:31,788 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:35:31,788 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:35:31,788 INFO L82 PathProgramCache]: Analyzing trace with hash 964062128, now seen corresponding path program 1 times [2018-12-09 15:35:31,788 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:35:31,789 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:35:31,789 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:35:31,789 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:35:31,789 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:35:31,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:35:31,891 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 15:35:31,891 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:35:31,892 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-09 15:35:31,892 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 15:35:31,892 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-09 15:35:31,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-09 15:35:31,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-12-09 15:35:31,893 INFO L87 Difference]: Start difference. First operand 318 states and 386 transitions. Second operand 10 states. [2018-12-09 15:35:32,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:35:32,267 INFO L93 Difference]: Finished difference Result 1152 states and 1500 transitions. [2018-12-09 15:35:32,267 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-09 15:35:32,267 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 57 [2018-12-09 15:35:32,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:35:32,272 INFO L225 Difference]: With dead ends: 1152 [2018-12-09 15:35:32,272 INFO L226 Difference]: Without dead ends: 858 [2018-12-09 15:35:32,274 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2018-12-09 15:35:32,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2018-12-09 15:35:32,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 846. [2018-12-09 15:35:32,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 846 states. [2018-12-09 15:35:32,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 846 states to 846 states and 1066 transitions. [2018-12-09 15:35:32,314 INFO L78 Accepts]: Start accepts. Automaton has 846 states and 1066 transitions. Word has length 57 [2018-12-09 15:35:32,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:35:32,314 INFO L480 AbstractCegarLoop]: Abstraction has 846 states and 1066 transitions. [2018-12-09 15:35:32,314 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-09 15:35:32,314 INFO L276 IsEmpty]: Start isEmpty. Operand 846 states and 1066 transitions. [2018-12-09 15:35:32,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-12-09 15:35:32,316 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:35:32,316 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 15:35:32,317 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:35:32,317 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:35:32,317 INFO L82 PathProgramCache]: Analyzing trace with hash 1818823606, now seen corresponding path program 1 times [2018-12-09 15:35:32,317 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:35:32,318 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:35:32,318 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:35:32,318 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:35:32,318 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:35:32,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:35:32,360 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 15:35:32,361 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:35:32,361 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 15:35:32,361 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 15:35:32,361 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 15:35:32,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 15:35:32,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 15:35:32,362 INFO L87 Difference]: Start difference. First operand 846 states and 1066 transitions. Second operand 4 states. [2018-12-09 15:35:32,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:35:32,603 INFO L93 Difference]: Finished difference Result 2116 states and 2869 transitions. [2018-12-09 15:35:32,604 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 15:35:32,604 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 61 [2018-12-09 15:35:32,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:35:32,608 INFO L225 Difference]: With dead ends: 2116 [2018-12-09 15:35:32,609 INFO L226 Difference]: Without dead ends: 1294 [2018-12-09 15:35:32,611 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-09 15:35:32,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1294 states. [2018-12-09 15:35:32,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1294 to 1159. [2018-12-09 15:35:32,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1159 states. [2018-12-09 15:35:32,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1159 states to 1159 states and 1444 transitions. [2018-12-09 15:35:32,655 INFO L78 Accepts]: Start accepts. Automaton has 1159 states and 1444 transitions. Word has length 61 [2018-12-09 15:35:32,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:35:32,656 INFO L480 AbstractCegarLoop]: Abstraction has 1159 states and 1444 transitions. [2018-12-09 15:35:32,656 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 15:35:32,656 INFO L276 IsEmpty]: Start isEmpty. Operand 1159 states and 1444 transitions. [2018-12-09 15:35:32,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-12-09 15:35:32,657 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:35:32,657 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 15:35:32,658 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:35:32,658 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:35:32,658 INFO L82 PathProgramCache]: Analyzing trace with hash 1689006961, now seen corresponding path program 1 times [2018-12-09 15:35:32,658 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:35:32,658 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:35:32,659 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:35:32,659 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:35:32,659 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:35:32,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:35:32,721 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-12-09 15:35:32,721 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 15:35:32,722 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 15:35:32,722 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 89 with the following transitions: [2018-12-09 15:35:32,724 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [61], [63], [64], [65], [66], [78], [113], [122], [126], [130], [133], [138], [144], [146], [149], [151], [154], [169], [170], [193], [194], [209], [216], [219], [253], [278], [282], [283], [286], [287], [288], [289], [290], [292], [293], [294], [295], [296], [297], [298], [299], [300], [314], [326], [327], [330], [331], [332], [333], [346], [347], [352], [353], [354] [2018-12-09 15:35:32,752 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 15:35:32,752 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 15:35:33,134 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 15:35:33,135 INFO L272 AbstractInterpreter]: Visited 67 different actions 137 times. Merged at 13 different actions 19 times. Never widened. Performed 5095 root evaluator evaluations with a maximum evaluation depth of 3. Performed 5095 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 2 fixpoints after 2 different actions. Largest state had 133 variables. [2018-12-09 15:35:33,146 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:35:33,147 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 15:35:33,147 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 15:35:33,147 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d0c22e4-3c9e-4c5f-b6ca-974670eb001a/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 15:35:33,156 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:35:33,156 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 15:35:33,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:35:33,230 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:35:33,312 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 15:35:33,313 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 15:35:33,458 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-09 15:35:33,484 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 15:35:33,485 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 8] total 15 [2018-12-09 15:35:33,485 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 15:35:33,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-09 15:35:33,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-09 15:35:33,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2018-12-09 15:35:33,486 INFO L87 Difference]: Start difference. First operand 1159 states and 1444 transitions. Second operand 12 states. [2018-12-09 15:35:35,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:35:35,323 INFO L93 Difference]: Finished difference Result 2684 states and 3605 transitions. [2018-12-09 15:35:35,323 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2018-12-09 15:35:35,323 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 88 [2018-12-09 15:35:35,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:35:35,330 INFO L225 Difference]: With dead ends: 2684 [2018-12-09 15:35:35,330 INFO L226 Difference]: Without dead ends: 1833 [2018-12-09 15:35:35,333 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 180 SyntacticMatches, 8 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 860 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=645, Invalid=2547, Unknown=0, NotChecked=0, Total=3192 [2018-12-09 15:35:35,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1833 states. [2018-12-09 15:35:35,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1833 to 1627. [2018-12-09 15:35:35,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1627 states. [2018-12-09 15:35:35,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1627 states to 1627 states and 2053 transitions. [2018-12-09 15:35:35,399 INFO L78 Accepts]: Start accepts. Automaton has 1627 states and 2053 transitions. Word has length 88 [2018-12-09 15:35:35,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:35:35,399 INFO L480 AbstractCegarLoop]: Abstraction has 1627 states and 2053 transitions. [2018-12-09 15:35:35,399 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-09 15:35:35,399 INFO L276 IsEmpty]: Start isEmpty. Operand 1627 states and 2053 transitions. [2018-12-09 15:35:35,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2018-12-09 15:35:35,403 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:35:35,403 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:35:35,403 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:35:35,403 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:35:35,403 INFO L82 PathProgramCache]: Analyzing trace with hash 1854788712, now seen corresponding path program 1 times [2018-12-09 15:35:35,403 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:35:35,404 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:35:35,404 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:35:35,404 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:35:35,404 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:35:35,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:35:35,460 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 16 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-12-09 15:35:35,460 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 15:35:35,460 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 15:35:35,460 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 169 with the following transitions: [2018-12-09 15:35:35,461 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [48], [52], [55], [65], [66], [67], [69], [72], [76], [77], [78], [81], [83], [84], [87], [90], [92], [98], [102], [105], [106], [109], [111], [112], [113], [122], [126], [130], [136], [138], [144], [146], [149], [165], [166], [167], [168], [169], [170], [171], [173], [178], [181], [182], [184], [187], [191], [192], [193], [194], [202], [203], [206], [209], [213], [219], [248], [252], [253], [257], [260], [262], [265], [272], [275], [283], [286], [287], [288], [289], [290], [292], [293], [294], [295], [296], [297], [298], [299], [300], [302], [303], [306], [307], [308], [309], [312], [313], [314], [316], [317], [318], [319], [322], [323], [324], [325], [332], [333], [336], [337], [338], [339], [340], [341], [342], [343], [344], [345], [346], [347], [352], [353], [354], [356], [357], [358], [359], [362], [363] [2018-12-09 15:35:35,463 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 15:35:35,463 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 15:35:36,054 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 15:35:36,054 INFO L272 AbstractInterpreter]: Visited 136 different actions 479 times. Merged at 14 different actions 27 times. Never widened. Performed 13954 root evaluator evaluations with a maximum evaluation depth of 5. Performed 13954 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 4 fixpoints after 2 different actions. Largest state had 132 variables. [2018-12-09 15:35:36,055 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:35:36,056 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 15:35:36,056 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 15:35:36,056 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d0c22e4-3c9e-4c5f-b6ca-974670eb001a/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 15:35:36,062 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:35:36,062 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 15:35:36,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:35:36,142 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:35:36,159 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2018-12-09 15:35:36,159 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 15:35:36,378 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 16 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-12-09 15:35:36,393 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-09 15:35:36,393 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 6 [2018-12-09 15:35:36,393 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 15:35:36,394 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 15:35:36,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 15:35:36,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 15:35:36,394 INFO L87 Difference]: Start difference. First operand 1627 states and 2053 transitions. Second operand 6 states. [2018-12-09 15:35:36,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:35:36,447 INFO L93 Difference]: Finished difference Result 3286 states and 4388 transitions. [2018-12-09 15:35:36,447 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 15:35:36,447 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 168 [2018-12-09 15:35:36,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:35:36,452 INFO L225 Difference]: With dead ends: 3286 [2018-12-09 15:35:36,452 INFO L226 Difference]: Without dead ends: 1683 [2018-12-09 15:35:36,455 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 331 SyntacticMatches, 6 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-09 15:35:36,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1683 states. [2018-12-09 15:35:36,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1683 to 1667. [2018-12-09 15:35:36,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1667 states. [2018-12-09 15:35:36,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1667 states to 1667 states and 2097 transitions. [2018-12-09 15:35:36,506 INFO L78 Accepts]: Start accepts. Automaton has 1667 states and 2097 transitions. Word has length 168 [2018-12-09 15:35:36,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:35:36,506 INFO L480 AbstractCegarLoop]: Abstraction has 1667 states and 2097 transitions. [2018-12-09 15:35:36,506 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 15:35:36,506 INFO L276 IsEmpty]: Start isEmpty. Operand 1667 states and 2097 transitions. [2018-12-09 15:35:36,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2018-12-09 15:35:36,509 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:35:36,509 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:35:36,509 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:35:36,509 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:35:36,510 INFO L82 PathProgramCache]: Analyzing trace with hash 1522145574, now seen corresponding path program 1 times [2018-12-09 15:35:36,510 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:35:36,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:35:36,510 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:35:36,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:35:36,510 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:35:36,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:35:36,600 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 16 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-12-09 15:35:36,600 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 15:35:36,600 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 15:35:36,600 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 169 with the following transitions: [2018-12-09 15:35:36,600 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [48], [52], [55], [65], [66], [67], [69], [72], [76], [77], [78], [81], [83], [84], [87], [90], [92], [98], [102], [105], [106], [109], [111], [112], [113], [122], [126], [130], [136], [138], [144], [146], [149], [165], [166], [167], [168], [169], [170], [171], [173], [178], [181], [182], [184], [189], [191], [192], [193], [194], [202], [203], [206], [209], [213], [219], [248], [252], [253], [257], [260], [262], [265], [272], [275], [283], [286], [287], [288], [289], [290], [292], [293], [294], [295], [296], [297], [298], [299], [300], [302], [303], [306], [307], [308], [309], [312], [313], [314], [316], [317], [318], [319], [322], [323], [324], [325], [332], [333], [336], [337], [338], [339], [340], [341], [342], [343], [344], [345], [346], [347], [352], [353], [354], [356], [357], [358], [359], [362], [363] [2018-12-09 15:35:36,602 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 15:35:36,602 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 15:35:36,678 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 15:35:36,678 INFO L272 AbstractInterpreter]: Visited 57 different actions 57 times. Never merged. Never widened. Performed 2061 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2061 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-12-09 15:35:36,679 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:35:36,679 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 15:35:36,814 INFO L227 lantSequenceWeakener]: Weakened 65 states. On average, predicates are now at 96.44% of their original sizes. [2018-12-09 15:35:36,815 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 15:35:36,846 INFO L418 sIntCurrentIteration]: We unified 167 AI predicates to 167 [2018-12-09 15:35:36,846 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 15:35:36,847 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 15:35:36,847 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 15 [2018-12-09 15:35:36,847 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 15:35:36,847 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-09 15:35:36,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-09 15:35:36,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-12-09 15:35:36,847 INFO L87 Difference]: Start difference. First operand 1667 states and 2097 transitions. Second operand 9 states. [2018-12-09 15:35:37,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:35:37,922 INFO L93 Difference]: Finished difference Result 3488 states and 4395 transitions. [2018-12-09 15:35:37,922 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 15:35:37,922 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 168 [2018-12-09 15:35:37,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:35:37,948 INFO L225 Difference]: With dead ends: 3488 [2018-12-09 15:35:37,949 INFO L226 Difference]: Without dead ends: 1845 [2018-12-09 15:35:37,951 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 170 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-12-09 15:35:37,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1845 states. [2018-12-09 15:35:38,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1845 to 1834. [2018-12-09 15:35:38,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1834 states. [2018-12-09 15:35:38,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1834 states to 1834 states and 2290 transitions. [2018-12-09 15:35:38,008 INFO L78 Accepts]: Start accepts. Automaton has 1834 states and 2290 transitions. Word has length 168 [2018-12-09 15:35:38,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:35:38,008 INFO L480 AbstractCegarLoop]: Abstraction has 1834 states and 2290 transitions. [2018-12-09 15:35:38,008 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-09 15:35:38,008 INFO L276 IsEmpty]: Start isEmpty. Operand 1834 states and 2290 transitions. [2018-12-09 15:35:38,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2018-12-09 15:35:38,011 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:35:38,011 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:35:38,012 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:35:38,012 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:35:38,012 INFO L82 PathProgramCache]: Analyzing trace with hash 525161727, now seen corresponding path program 1 times [2018-12-09 15:35:38,012 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:35:38,012 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:35:38,012 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:35:38,012 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:35:38,012 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:35:38,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:35:38,099 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 18 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-12-09 15:35:38,099 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 15:35:38,099 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 15:35:38,099 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 173 with the following transitions: [2018-12-09 15:35:38,100 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [48], [52], [55], [65], [66], [67], [69], [72], [76], [77], [78], [81], [83], [84], [87], [90], [92], [98], [102], [105], [106], [110], [111], [112], [113], [122], [126], [130], [133], [136], [138], [144], [146], [149], [165], [166], [167], [168], [169], [170], [171], [173], [178], [181], [182], [184], [189], [191], [192], [193], [194], [202], [203], [206], [209], [213], [219], [248], [252], [253], [257], [260], [262], [265], [272], [275], [278], [282], [283], [286], [287], [288], [289], [290], [292], [293], [294], [295], [296], [297], [298], [299], [300], [302], [303], [306], [307], [308], [309], [312], [313], [314], [316], [317], [318], [319], [322], [323], [324], [325], [326], [327], [332], [333], [336], [337], [338], [339], [340], [341], [342], [343], [344], [345], [346], [347], [352], [353], [354], [356], [357], [358], [359], [362], [363] [2018-12-09 15:35:38,102 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 15:35:38,102 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 15:35:38,826 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 15:35:38,826 INFO L272 AbstractInterpreter]: Visited 141 different actions 679 times. Merged at 15 different actions 42 times. Never widened. Performed 21218 root evaluator evaluations with a maximum evaluation depth of 5. Performed 21218 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 9 fixpoints after 3 different actions. Largest state had 132 variables. [2018-12-09 15:35:38,828 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:35:38,828 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 15:35:38,828 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 15:35:38,828 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d0c22e4-3c9e-4c5f-b6ca-974670eb001a/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 15:35:38,833 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:35:38,833 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 15:35:38,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:35:38,894 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:35:38,941 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 18 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:35:38,941 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 15:35:39,118 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 18 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-12-09 15:35:39,133 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 15:35:39,133 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 17 [2018-12-09 15:35:39,133 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 15:35:39,134 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-12-09 15:35:39,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-12-09 15:35:39,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2018-12-09 15:35:39,134 INFO L87 Difference]: Start difference. First operand 1834 states and 2290 transitions. Second operand 14 states. [2018-12-09 15:35:39,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:35:39,993 INFO L93 Difference]: Finished difference Result 3438 states and 4603 transitions. [2018-12-09 15:35:39,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-12-09 15:35:39,993 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 172 [2018-12-09 15:35:39,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:35:40,000 INFO L225 Difference]: With dead ends: 3438 [2018-12-09 15:35:40,000 INFO L226 Difference]: Without dead ends: 2095 [2018-12-09 15:35:40,003 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 338 SyntacticMatches, 7 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=219, Invalid=651, Unknown=0, NotChecked=0, Total=870 [2018-12-09 15:35:40,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2095 states. [2018-12-09 15:35:40,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2095 to 1720. [2018-12-09 15:35:40,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1720 states. [2018-12-09 15:35:40,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1720 states to 1720 states and 2142 transitions. [2018-12-09 15:35:40,101 INFO L78 Accepts]: Start accepts. Automaton has 1720 states and 2142 transitions. Word has length 172 [2018-12-09 15:35:40,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:35:40,102 INFO L480 AbstractCegarLoop]: Abstraction has 1720 states and 2142 transitions. [2018-12-09 15:35:40,102 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-12-09 15:35:40,102 INFO L276 IsEmpty]: Start isEmpty. Operand 1720 states and 2142 transitions. [2018-12-09 15:35:40,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2018-12-09 15:35:40,106 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:35:40,106 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:35:40,106 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:35:40,106 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:35:40,107 INFO L82 PathProgramCache]: Analyzing trace with hash 608960898, now seen corresponding path program 1 times [2018-12-09 15:35:40,107 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:35:40,107 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:35:40,107 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:35:40,107 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:35:40,107 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:35:40,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:35:40,175 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 16 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-12-09 15:35:40,175 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 15:35:40,175 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 15:35:40,175 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 173 with the following transitions: [2018-12-09 15:35:40,176 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [48], [52], [55], [65], [66], [67], [69], [72], [76], [77], [78], [81], [83], [84], [87], [90], [92], [98], [102], [105], [106], [109], [111], [112], [113], [122], [126], [130], [136], [138], [141], [144], [146], [149], [165], [166], [167], [168], [169], [170], [171], [173], [178], [181], [182], [184], [189], [191], [192], [193], [194], [199], [201], [202], [203], [206], [209], [213], [219], [248], [252], [253], [257], [260], [262], [265], [272], [275], [283], [286], [287], [288], [289], [290], [292], [293], [294], [295], [296], [297], [298], [299], [300], [302], [303], [306], [307], [308], [309], [312], [313], [314], [316], [317], [318], [319], [322], [323], [324], [325], [328], [329], [332], [333], [336], [337], [338], [339], [340], [341], [342], [343], [344], [345], [346], [347], [352], [353], [354], [356], [357], [358], [359], [362], [363] [2018-12-09 15:35:40,177 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 15:35:40,178 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 15:35:40,341 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 15:35:40,341 INFO L272 AbstractInterpreter]: Visited 62 different actions 89 times. Merged at 3 different actions 3 times. Never widened. Performed 5237 root evaluator evaluations with a maximum evaluation depth of 3. Performed 5237 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-12-09 15:35:40,342 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:35:40,342 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 15:35:40,460 INFO L227 lantSequenceWeakener]: Weakened 69 states. On average, predicates are now at 96.44% of their original sizes. [2018-12-09 15:35:40,461 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 15:35:40,514 INFO L418 sIntCurrentIteration]: We unified 171 AI predicates to 171 [2018-12-09 15:35:40,514 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 15:35:40,514 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 15:35:40,514 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [8] total 18 [2018-12-09 15:35:40,514 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 15:35:40,515 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-09 15:35:40,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-09 15:35:40,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2018-12-09 15:35:40,515 INFO L87 Difference]: Start difference. First operand 1720 states and 2142 transitions. Second operand 12 states. [2018-12-09 15:35:41,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:35:41,717 INFO L93 Difference]: Finished difference Result 3376 states and 4234 transitions. [2018-12-09 15:35:41,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-09 15:35:41,717 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 172 [2018-12-09 15:35:41,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:35:41,722 INFO L225 Difference]: With dead ends: 3376 [2018-12-09 15:35:41,722 INFO L226 Difference]: Without dead ends: 1847 [2018-12-09 15:35:41,724 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 178 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2018-12-09 15:35:41,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1847 states. [2018-12-09 15:35:41,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1847 to 1828. [2018-12-09 15:35:41,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1828 states. [2018-12-09 15:35:41,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1828 states to 1828 states and 2258 transitions. [2018-12-09 15:35:41,781 INFO L78 Accepts]: Start accepts. Automaton has 1828 states and 2258 transitions. Word has length 172 [2018-12-09 15:35:41,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:35:41,781 INFO L480 AbstractCegarLoop]: Abstraction has 1828 states and 2258 transitions. [2018-12-09 15:35:41,781 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-09 15:35:41,781 INFO L276 IsEmpty]: Start isEmpty. Operand 1828 states and 2258 transitions. [2018-12-09 15:35:41,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2018-12-09 15:35:41,784 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:35:41,784 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:35:41,784 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:35:41,784 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:35:41,784 INFO L82 PathProgramCache]: Analyzing trace with hash -2082695391, now seen corresponding path program 1 times [2018-12-09 15:35:41,784 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:35:41,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:35:41,785 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:35:41,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:35:41,785 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:35:41,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:35:41,817 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2018-12-09 15:35:41,817 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:35:41,817 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 15:35:41,817 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 15:35:41,818 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 15:35:41,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 15:35:41,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 15:35:41,818 INFO L87 Difference]: Start difference. First operand 1828 states and 2258 transitions. Second operand 4 states. [2018-12-09 15:35:41,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:35:41,927 INFO L93 Difference]: Finished difference Result 2046 states and 2529 transitions. [2018-12-09 15:35:41,927 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 15:35:41,927 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 178 [2018-12-09 15:35:41,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:35:41,929 INFO L225 Difference]: With dead ends: 2046 [2018-12-09 15:35:41,929 INFO L226 Difference]: Without dead ends: 748 [2018-12-09 15:35:41,931 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 15:35:41,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2018-12-09 15:35:41,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 692. [2018-12-09 15:35:41,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 692 states. [2018-12-09 15:35:41,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 840 transitions. [2018-12-09 15:35:41,953 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 840 transitions. Word has length 178 [2018-12-09 15:35:41,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:35:41,953 INFO L480 AbstractCegarLoop]: Abstraction has 692 states and 840 transitions. [2018-12-09 15:35:41,953 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 15:35:41,953 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 840 transitions. [2018-12-09 15:35:41,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2018-12-09 15:35:41,955 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:35:41,955 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 15:35:41,955 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:35:41,955 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:35:41,955 INFO L82 PathProgramCache]: Analyzing trace with hash 1011338514, now seen corresponding path program 2 times [2018-12-09 15:35:41,955 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:35:41,956 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:35:41,956 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:35:41,956 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:35:41,956 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:35:41,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:35:42,020 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 45 proven. 14 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2018-12-09 15:35:42,020 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 15:35:42,020 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 15:35:42,020 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-09 15:35:42,020 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-09 15:35:42,020 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 15:35:42,020 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d0c22e4-3c9e-4c5f-b6ca-974670eb001a/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 15:35:42,026 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-09 15:35:42,026 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-12-09 15:35:42,105 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2018-12-09 15:35:42,105 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-09 15:35:42,110 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:35:42,212 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-12-09 15:35:42,212 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 15:35:42,471 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 45 proven. 14 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2018-12-09 15:35:42,496 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-09 15:35:42,496 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [8, 8] total 15 [2018-12-09 15:35:42,496 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 15:35:42,496 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-09 15:35:42,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-09 15:35:42,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2018-12-09 15:35:42,497 INFO L87 Difference]: Start difference. First operand 692 states and 840 transitions. Second operand 9 states. [2018-12-09 15:35:43,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:35:43,358 INFO L93 Difference]: Finished difference Result 1782 states and 2307 transitions. [2018-12-09 15:35:43,358 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-12-09 15:35:43,358 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 241 [2018-12-09 15:35:43,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:35:43,362 INFO L225 Difference]: With dead ends: 1782 [2018-12-09 15:35:43,362 INFO L226 Difference]: Without dead ends: 1236 [2018-12-09 15:35:43,363 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 504 GetRequests, 476 SyntacticMatches, 3 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=170, Invalid=532, Unknown=0, NotChecked=0, Total=702 [2018-12-09 15:35:43,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1236 states. [2018-12-09 15:35:43,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1236 to 1215. [2018-12-09 15:35:43,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1215 states. [2018-12-09 15:35:43,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1215 states to 1215 states and 1473 transitions. [2018-12-09 15:35:43,398 INFO L78 Accepts]: Start accepts. Automaton has 1215 states and 1473 transitions. Word has length 241 [2018-12-09 15:35:43,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:35:43,398 INFO L480 AbstractCegarLoop]: Abstraction has 1215 states and 1473 transitions. [2018-12-09 15:35:43,398 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-09 15:35:43,398 INFO L276 IsEmpty]: Start isEmpty. Operand 1215 states and 1473 transitions. [2018-12-09 15:35:43,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2018-12-09 15:35:43,401 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:35:43,401 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:35:43,401 INFO L423 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:35:43,401 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:35:43,402 INFO L82 PathProgramCache]: Analyzing trace with hash -1022055532, now seen corresponding path program 1 times [2018-12-09 15:35:43,402 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:35:43,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:35:43,402 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 15:35:43,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:35:43,403 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:35:43,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:35:43,475 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 41 proven. 10 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2018-12-09 15:35:43,475 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 15:35:43,475 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 15:35:43,475 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 242 with the following transitions: [2018-12-09 15:35:43,476 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [48], [52], [55], [65], [66], [67], [69], [72], [74], [76], [77], [78], [81], [83], [84], [87], [90], [92], [98], [102], [105], [106], [110], [111], [112], [113], [122], [126], [130], [133], [136], [138], [144], [146], [149], [165], [166], [167], [168], [169], [170], [171], [173], [178], [181], [182], [184], [189], [191], [192], [193], [194], [202], [203], [206], [209], [213], [219], [248], [252], [253], [257], [260], [262], [265], [272], [275], [278], [282], [283], [286], [287], [288], [289], [290], [292], [293], [294], [295], [296], [297], [298], [299], [300], [302], [303], [306], [307], [308], [309], [312], [313], [314], [316], [317], [318], [319], [322], [323], [324], [325], [326], [327], [332], [333], [336], [337], [338], [339], [340], [341], [342], [343], [344], [345], [346], [347], [352], [353], [354], [356], [357], [358], [359], [362], [363] [2018-12-09 15:35:43,477 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 15:35:43,477 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 15:35:44,135 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 15:35:44,135 INFO L272 AbstractInterpreter]: Visited 142 different actions 691 times. Merged at 18 different actions 51 times. Never widened. Performed 21000 root evaluator evaluations with a maximum evaluation depth of 5. Performed 21000 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 15:35:44,137 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:35:44,138 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 15:35:44,138 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 15:35:44,138 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d0c22e4-3c9e-4c5f-b6ca-974670eb001a/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 15:35:44,143 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:35:44,143 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 15:35:44,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:35:44,220 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:35:44,268 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2018-12-09 15:35:44,269 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 15:35:44,482 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 41 proven. 10 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2018-12-09 15:35:44,497 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-09 15:35:44,497 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [9, 6] total 13 [2018-12-09 15:35:44,497 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 15:35:44,497 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 15:35:44,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 15:35:44,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-12-09 15:35:44,498 INFO L87 Difference]: Start difference. First operand 1215 states and 1473 transitions. Second operand 6 states. [2018-12-09 15:35:44,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:35:44,533 INFO L93 Difference]: Finished difference Result 2243 states and 2782 transitions. [2018-12-09 15:35:44,533 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 15:35:44,533 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 241 [2018-12-09 15:35:44,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:35:44,537 INFO L225 Difference]: With dead ends: 2243 [2018-12-09 15:35:44,537 INFO L226 Difference]: Without dead ends: 1176 [2018-12-09 15:35:44,539 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 493 GetRequests, 477 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 15:35:44,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1176 states. [2018-12-09 15:35:44,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1176 to 1176. [2018-12-09 15:35:44,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1176 states. [2018-12-09 15:35:44,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1176 states to 1176 states and 1416 transitions. [2018-12-09 15:35:44,582 INFO L78 Accepts]: Start accepts. Automaton has 1176 states and 1416 transitions. Word has length 241 [2018-12-09 15:35:44,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:35:44,582 INFO L480 AbstractCegarLoop]: Abstraction has 1176 states and 1416 transitions. [2018-12-09 15:35:44,582 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 15:35:44,582 INFO L276 IsEmpty]: Start isEmpty. Operand 1176 states and 1416 transitions. [2018-12-09 15:35:44,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2018-12-09 15:35:44,584 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:35:44,584 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:35:44,585 INFO L423 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:35:44,585 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:35:44,585 INFO L82 PathProgramCache]: Analyzing trace with hash 198178784, now seen corresponding path program 1 times [2018-12-09 15:35:44,585 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:35:44,585 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:35:44,585 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:35:44,585 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:35:44,585 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:35:44,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:35:44,655 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 50 proven. 23 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-12-09 15:35:44,655 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 15:35:44,655 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 15:35:44,655 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 248 with the following transitions: [2018-12-09 15:35:44,655 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [48], [52], [55], [65], [66], [67], [69], [72], [76], [77], [78], [81], [83], [84], [87], [90], [92], [98], [102], [105], [106], [109], [110], [111], [112], [113], [122], [126], [130], [133], [136], [138], [144], [146], [149], [165], [166], [167], [168], [169], [170], [171], [173], [178], [181], [182], [184], [189], [191], [192], [193], [194], [202], [203], [206], [209], [213], [219], [248], [252], [253], [257], [260], [262], [265], [272], [275], [278], [282], [283], [286], [287], [288], [289], [290], [292], [293], [294], [295], [296], [297], [298], [299], [300], [302], [303], [306], [307], [308], [309], [312], [313], [314], [316], [317], [318], [319], [322], [323], [324], [325], [326], [327], [332], [333], [336], [337], [338], [339], [340], [341], [342], [343], [344], [345], [346], [347], [352], [353], [354], [356], [357], [358], [359], [362], [363] [2018-12-09 15:35:44,656 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 15:35:44,656 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 15:35:45,423 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 15:35:45,423 INFO L272 AbstractInterpreter]: Visited 142 different actions 719 times. Merged at 19 different actions 70 times. Never widened. Performed 22641 root evaluator evaluations with a maximum evaluation depth of 5. Performed 22641 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 9 fixpoints after 3 different actions. Largest state had 132 variables. [2018-12-09 15:35:45,424 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:35:45,424 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 15:35:45,425 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 15:35:45,425 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d0c22e4-3c9e-4c5f-b6ca-974670eb001a/bin-2019/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 15:35:45,430 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:35:45,430 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 15:35:45,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:35:45,498 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:35:45,534 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 99 proven. 22 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2018-12-09 15:35:45,534 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 15:35:45,751 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 50 proven. 23 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-12-09 15:35:45,766 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 15:35:45,766 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 13 [2018-12-09 15:35:45,767 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 15:35:45,767 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-09 15:35:45,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-09 15:35:45,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2018-12-09 15:35:45,768 INFO L87 Difference]: Start difference. First operand 1176 states and 1416 transitions. Second operand 12 states. [2018-12-09 15:35:46,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:35:46,179 INFO L93 Difference]: Finished difference Result 2397 states and 2938 transitions. [2018-12-09 15:35:46,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-09 15:35:46,179 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 247 [2018-12-09 15:35:46,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:35:46,183 INFO L225 Difference]: With dead ends: 2397 [2018-12-09 15:35:46,183 INFO L226 Difference]: Without dead ends: 1358 [2018-12-09 15:35:46,185 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 514 GetRequests, 494 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2018-12-09 15:35:46,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1358 states. [2018-12-09 15:35:46,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1358 to 1261. [2018-12-09 15:35:46,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1261 states. [2018-12-09 15:35:46,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1261 states to 1261 states and 1424 transitions. [2018-12-09 15:35:46,228 INFO L78 Accepts]: Start accepts. Automaton has 1261 states and 1424 transitions. Word has length 247 [2018-12-09 15:35:46,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:35:46,229 INFO L480 AbstractCegarLoop]: Abstraction has 1261 states and 1424 transitions. [2018-12-09 15:35:46,229 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-09 15:35:46,229 INFO L276 IsEmpty]: Start isEmpty. Operand 1261 states and 1424 transitions. [2018-12-09 15:35:46,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2018-12-09 15:35:46,231 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:35:46,231 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, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 15:35:46,232 INFO L423 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:35:46,232 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:35:46,232 INFO L82 PathProgramCache]: Analyzing trace with hash -597641399, now seen corresponding path program 1 times [2018-12-09 15:35:46,232 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:35:46,232 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:35:46,232 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:35:46,232 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:35:46,232 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:35:46,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:35:46,303 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 71 proven. 19 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2018-12-09 15:35:46,303 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 15:35:46,303 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 15:35:46,304 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 291 with the following transitions: [2018-12-09 15:35:46,304 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [48], [52], [55], [65], [66], [67], [69], [72], [76], [77], [78], [81], [83], [84], [85], [86], [87], [90], [92], [95], [98], [102], [105], [106], [109], [110], [111], [112], [113], [122], [126], [130], [133], [136], [138], [144], [146], [149], [165], [166], [167], [168], [169], [170], [171], [173], [178], [181], [182], [184], [189], [191], [192], [193], [194], [202], [203], [206], [209], [213], [219], [248], [252], [253], [257], [260], [262], [265], [272], [275], [278], [282], [283], [286], [287], [288], [289], [290], [292], [293], [294], [295], [296], [297], [298], [299], [300], [302], [303], [306], [307], [308], [309], [312], [313], [314], [316], [317], [318], [319], [320], [321], [322], [323], [324], [325], [326], [327], [332], [333], [336], [337], [338], [339], [340], [341], [342], [343], [344], [345], [346], [347], [352], [353], [354], [356], [357], [358], [359], [362], [363] [2018-12-09 15:35:46,305 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 15:35:46,305 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 15:35:47,019 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 15:35:47,019 INFO L272 AbstractInterpreter]: Visited 143 different actions 722 times. Merged at 19 different actions 70 times. Never widened. Performed 22644 root evaluator evaluations with a maximum evaluation depth of 5. Performed 22644 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 9 fixpoints after 3 different actions. Largest state had 132 variables. [2018-12-09 15:35:47,020 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:35:47,020 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 15:35:47,020 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 15:35:47,020 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d0c22e4-3c9e-4c5f-b6ca-974670eb001a/bin-2019/utaipan/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 15:35:47,027 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:35:47,027 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 15:35:47,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:35:47,098 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:35:47,135 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 165 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2018-12-09 15:35:47,135 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 15:35:47,394 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 75 proven. 6 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2018-12-09 15:35:47,409 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-09 15:35:47,409 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [9, 5] total 12 [2018-12-09 15:35:47,410 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 15:35:47,410 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 15:35:47,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 15:35:47,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-12-09 15:35:47,410 INFO L87 Difference]: Start difference. First operand 1261 states and 1424 transitions. Second operand 5 states. [2018-12-09 15:35:47,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:35:47,433 INFO L93 Difference]: Finished difference Result 1643 states and 1868 transitions. [2018-12-09 15:35:47,433 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 15:35:47,433 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 290 [2018-12-09 15:35:47,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:35:47,434 INFO L225 Difference]: With dead ends: 1643 [2018-12-09 15:35:47,434 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 15:35:47,437 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 591 GetRequests, 578 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-12-09 15:35:47,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 15:35:47,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 15:35:47,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 15:35:47,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 15:35:47,437 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 290 [2018-12-09 15:35:47,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:35:47,437 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 15:35:47,437 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 15:35:47,437 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 15:35:47,437 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 15:35:47,441 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 15:35:47,511 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:35:47,513 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:35:47,513 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:35:47,524 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:35:47,531 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:35:47,531 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:35:47,539 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:35:47,540 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:35:47,582 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:35:47,652 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:35:47,682 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:35:47,745 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:35:47,746 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:35:47,756 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:35:47,756 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:35:47,757 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:35:47,763 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:35:47,763 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:35:47,773 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:35:47,781 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:35:47,783 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:35:47,786 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:35:47,787 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:35:47,797 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:35:47,798 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:35:47,798 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:35:47,855 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:35:47,859 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:35:47,860 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:35:47,861 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:35:47,862 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:35:47,862 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:35:47,863 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:35:47,873 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:35:47,877 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:35:47,954 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:35:47,955 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:35:47,956 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:35:47,956 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:35:47,957 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:35:47,971 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:35:47,971 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:35:47,973 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:35:48,008 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:35:48,048 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 15:35:48,298 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 36 [2018-12-09 15:35:48,981 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 30 [2018-12-09 15:35:50,155 INFO L451 ceAbstractionStarter]: At program point select_helpersFINAL(lines 528 534) the Hoare annotation is: true [2018-12-09 15:35:50,155 INFO L448 ceAbstractionStarter]: For program point select_helpersEXIT(lines 528 534) no Hoare annotation was computed. [2018-12-09 15:35:50,155 INFO L448 ceAbstractionStarter]: For program point valid_productEXIT(lines 535 543) no Hoare annotation was computed. [2018-12-09 15:35:50,155 INFO L451 ceAbstractionStarter]: At program point valid_productENTRY(lines 535 543) the Hoare annotation is: true [2018-12-09 15:35:50,155 INFO L448 ceAbstractionStarter]: For program point valid_productFINAL(lines 535 543) no Hoare annotation was computed. [2018-12-09 15:35:50,155 INFO L451 ceAbstractionStarter]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 548 572) the Hoare annotation is: true [2018-12-09 15:35:50,155 INFO L448 ceAbstractionStarter]: For program point __utac_acc__Specification4_spec__1EXIT(lines 548 572) no Hoare annotation was computed. [2018-12-09 15:35:50,156 INFO L444 ceAbstractionStarter]: At program point L562(line 562) the Hoare annotation is: (let ((.cse1 (not (= ~systemActive~0 1))) (.cse0 (not (= 0 ~pumpRunning~0)))) (and (or .cse0 (< ~waterLevel~0 1) .cse1) (or (< ~waterLevel~0 2) (not (= 1 ~pumpRunning~0)) .cse1) (or .cse0 (not (= ~systemActive~0 0))))) [2018-12-09 15:35:50,156 INFO L448 ceAbstractionStarter]: For program point L560(lines 560 566) no Hoare annotation was computed. [2018-12-09 15:35:50,156 INFO L444 ceAbstractionStarter]: At program point L558(line 558) the Hoare annotation is: (let ((.cse0 (not (= 0 ~pumpRunning~0))) (.cse1 (< ~waterLevel~0 1)) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2) (or .cse0 (not (= ~systemActive~0 0)) .cse1) (or (< ~waterLevel~0 2) (not (= 1 ~pumpRunning~0)) .cse2))) [2018-12-09 15:35:50,156 INFO L448 ceAbstractionStarter]: For program point L558-1(line 558) no Hoare annotation was computed. [2018-12-09 15:35:50,156 INFO L448 ceAbstractionStarter]: For program point L556(lines 556 569) no Hoare annotation was computed. [2018-12-09 15:35:50,156 INFO L448 ceAbstractionStarter]: For program point L556-1(lines 548 572) no Hoare annotation was computed. [2018-12-09 15:35:50,156 INFO L451 ceAbstractionStarter]: At program point L554(line 554) the Hoare annotation is: true [2018-12-09 15:35:50,156 INFO L448 ceAbstractionStarter]: For program point L554-1(line 554) no Hoare annotation was computed. [2018-12-09 15:35:50,156 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 486 508) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-09 15:35:50,156 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 486 508) no Hoare annotation was computed. [2018-12-09 15:35:50,156 INFO L444 ceAbstractionStarter]: At program point L498(line 498) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (and (= ~methaneLevelCritical~0 0) (= ~systemActive~0 1) (= main_~tmp~3 ~waterLevel~0) (= main_~tmp~3 ~systemActive~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-09 15:35:50,156 INFO L444 ceAbstractionStarter]: At program point L498-1(line 498) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (and (= ~methaneLevelCritical~0 0) (= ~systemActive~0 1) (= main_~tmp~3 ~waterLevel~0) (= main_~tmp~3 ~systemActive~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-09 15:35:50,156 INFO L448 ceAbstractionStarter]: For program point L496(lines 496 503) no Hoare annotation was computed. [2018-12-09 15:35:50,156 INFO L448 ceAbstractionStarter]: For program point L496-1(lines 496 503) no Hoare annotation was computed. [2018-12-09 15:35:50,156 INFO L448 ceAbstractionStarter]: For program point L494(line 494) no Hoare annotation was computed. [2018-12-09 15:35:50,156 INFO L444 ceAbstractionStarter]: At program point L493(line 493) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-09 15:35:50,156 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 486 508) no Hoare annotation was computed. [2018-12-09 15:35:50,156 INFO L444 ceAbstractionStarter]: At program point L492(line 492) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-09 15:35:50,156 INFO L444 ceAbstractionStarter]: At program point L492-1(line 492) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-09 15:35:50,157 INFO L444 ceAbstractionStarter]: At program point L769(line 769) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (not (= 1 |old(~pumpRunning~0)|)) .cse1) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1))) [2018-12-09 15:35:50,157 INFO L444 ceAbstractionStarter]: At program point L765(line 765) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or .cse0 (not (= 1 |old(~pumpRunning~0)|)) .cse1 (and (<= 1 processEnvironment__wrappee__methaneQuery_~tmp~6) (= |old(~pumpRunning~0)| ~pumpRunning~0))))) [2018-12-09 15:35:50,157 INFO L448 ceAbstractionStarter]: For program point L763(lines 763 771) no Hoare annotation was computed. [2018-12-09 15:35:50,157 INFO L444 ceAbstractionStarter]: At program point L761(line 761) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (not (= 1 |old(~pumpRunning~0)|)) .cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1))) [2018-12-09 15:35:50,157 INFO L448 ceAbstractionStarter]: For program point L761-1(line 761) no Hoare annotation was computed. [2018-12-09 15:35:50,157 INFO L448 ceAbstractionStarter]: For program point L759(lines 759 776) no Hoare annotation was computed. [2018-12-09 15:35:50,157 INFO L444 ceAbstractionStarter]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 755 779) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 (not (= 1 |old(~pumpRunning~0)|)) .cse1 .cse2) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1 .cse2))) [2018-12-09 15:35:50,157 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 755 779) no Hoare annotation was computed. [2018-12-09 15:35:50,157 INFO L444 ceAbstractionStarter]: At program point L774(line 774) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (not (= 1 |old(~pumpRunning~0)|)) .cse1) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)))) [2018-12-09 15:35:50,157 INFO L448 ceAbstractionStarter]: For program point L774-1(lines 755 779) no Hoare annotation was computed. [2018-12-09 15:35:50,157 INFO L448 ceAbstractionStarter]: For program point stopSystemEXIT(lines 933 947) no Hoare annotation was computed. [2018-12-09 15:35:50,157 INFO L444 ceAbstractionStarter]: At program point L939(line 939) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (< ~waterLevel~0 2) (= |old(~systemActive~0)| 0) (and (not (= ~systemActive~0 0)) .cse0)) (not (= 0 |old(~pumpRunning~0)|)) (or (and (= ~systemActive~0 1) .cse0) (not (= |old(~systemActive~0)| 1))))) [2018-12-09 15:35:50,157 INFO L448 ceAbstractionStarter]: For program point L937(lines 937 943) no Hoare annotation was computed. [2018-12-09 15:35:50,157 INFO L444 ceAbstractionStarter]: At program point stopSystemENTRY(lines 933 947) the Hoare annotation is: (let ((.cse3 (= ~systemActive~0 0)) (.cse4 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (let ((.cse1 (and (not .cse3) .cse4)) (.cse0 (= |old(~systemActive~0)| 0)) (.cse2 (not (= 0 |old(~pumpRunning~0)|)))) (and (or (< ~waterLevel~0 2) .cse0 .cse1) (or .cse0 .cse2 .cse1) (or (not .cse0) .cse2 (and .cse3 .cse4)) (or (and (= ~systemActive~0 1) .cse4) (not (= |old(~systemActive~0)| 1)))))) [2018-12-09 15:35:50,157 INFO L448 ceAbstractionStarter]: For program point stopSystemFINAL(lines 933 947) no Hoare annotation was computed. [2018-12-09 15:35:50,157 INFO L448 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 850 858) no Hoare annotation was computed. [2018-12-09 15:35:50,157 INFO L451 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 850 858) the Hoare annotation is: true [2018-12-09 15:35:50,157 INFO L448 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 850 858) no Hoare annotation was computed. [2018-12-09 15:35:50,157 INFO L448 ceAbstractionStarter]: For program point L923(lines 923 927) no Hoare annotation was computed. [2018-12-09 15:35:50,157 INFO L451 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 914 932) the Hoare annotation is: true [2018-12-09 15:35:50,158 INFO L451 ceAbstractionStarter]: At program point L921(line 921) the Hoare annotation is: true [2018-12-09 15:35:50,158 INFO L448 ceAbstractionStarter]: For program point L923-2(lines 923 927) no Hoare annotation was computed. [2018-12-09 15:35:50,158 INFO L448 ceAbstractionStarter]: For program point L921-1(line 921) no Hoare annotation was computed. [2018-12-09 15:35:50,158 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 914 932) no Hoare annotation was computed. [2018-12-09 15:35:50,158 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 914 932) no Hoare annotation was computed. [2018-12-09 15:35:50,158 INFO L448 ceAbstractionStarter]: For program point select_featuresEXIT(lines 521 527) no Hoare annotation was computed. [2018-12-09 15:35:50,158 INFO L451 ceAbstractionStarter]: At program point select_featuresFINAL(lines 521 527) the Hoare annotation is: true [2018-12-09 15:35:50,158 INFO L444 ceAbstractionStarter]: At program point runTestENTRY(lines 473 482) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-09 15:35:50,158 INFO L448 ceAbstractionStarter]: For program point runTestEXIT(lines 473 482) no Hoare annotation was computed. [2018-12-09 15:35:50,158 INFO L448 ceAbstractionStarter]: For program point runTestFINAL(lines 473 482) no Hoare annotation was computed. [2018-12-09 15:35:50,158 INFO L451 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 839 849) the Hoare annotation is: true [2018-12-09 15:35:50,158 INFO L451 ceAbstractionStarter]: At program point L844(line 844) the Hoare annotation is: true [2018-12-09 15:35:50,158 INFO L448 ceAbstractionStarter]: For program point L844-1(line 844) no Hoare annotation was computed. [2018-12-09 15:35:50,158 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 839 849) no Hoare annotation was computed. [2018-12-09 15:35:50,158 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 839 849) no Hoare annotation was computed. [2018-12-09 15:35:50,158 INFO L444 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 831 838) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 (not (= ~systemActive~0 1))) (or (< ~waterLevel~0 2) (= ~systemActive~0 0) .cse0))) [2018-12-09 15:35:50,158 INFO L448 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 831 838) no Hoare annotation was computed. [2018-12-09 15:35:50,158 INFO L448 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 831 838) no Hoare annotation was computed. [2018-12-09 15:35:50,158 INFO L444 ceAbstractionStarter]: At program point L800(line 800) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (not (= 1 |old(~pumpRunning~0)|)) .cse1) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)))) [2018-12-09 15:35:50,158 INFO L448 ceAbstractionStarter]: For program point L800-1(lines 781 805) no Hoare annotation was computed. [2018-12-09 15:35:50,158 INFO L444 ceAbstractionStarter]: At program point L795(line 795) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (not (= 1 |old(~pumpRunning~0)|)) .cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1))) [2018-12-09 15:35:50,159 INFO L444 ceAbstractionStarter]: At program point L791(line 791) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (not (= 1 |old(~pumpRunning~0)|)) .cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1))) [2018-12-09 15:35:50,159 INFO L448 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 781 805) no Hoare annotation was computed. [2018-12-09 15:35:50,159 INFO L448 ceAbstractionStarter]: For program point L789(lines 789 797) no Hoare annotation was computed. [2018-12-09 15:35:50,159 INFO L444 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 781 805) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 (not (= 1 |old(~pumpRunning~0)|)) .cse1 .cse2) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1 .cse2))) [2018-12-09 15:35:50,159 INFO L444 ceAbstractionStarter]: At program point L787(line 787) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (not (= 1 |old(~pumpRunning~0)|)) .cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1))) [2018-12-09 15:35:50,159 INFO L448 ceAbstractionStarter]: For program point L787-1(line 787) no Hoare annotation was computed. [2018-12-09 15:35:50,159 INFO L448 ceAbstractionStarter]: For program point L785(lines 785 802) no Hoare annotation was computed. [2018-12-09 15:35:50,159 INFO L448 ceAbstractionStarter]: For program point L662(lines 662 668) no Hoare annotation was computed. [2018-12-09 15:35:50,159 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 658 671) no Hoare annotation was computed. [2018-12-09 15:35:50,159 INFO L451 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 658 671) the Hoare annotation is: true [2018-12-09 15:35:50,159 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 658 671) no Hoare annotation was computed. [2018-12-09 15:35:50,159 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 721 727) no Hoare annotation was computed. [2018-12-09 15:35:50,159 INFO L451 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 721 727) the Hoare annotation is: true [2018-12-09 15:35:50,159 INFO L448 ceAbstractionStarter]: For program point L960(lines 959 1006) no Hoare annotation was computed. [2018-12-09 15:35:50,159 INFO L444 ceAbstractionStarter]: At program point testENTRY(lines 949 1014) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-09 15:35:50,159 INFO L448 ceAbstractionStarter]: For program point L989(lines 989 1002) no Hoare annotation was computed. [2018-12-09 15:35:50,159 INFO L448 ceAbstractionStarter]: For program point testFINAL(lines 949 1014) no Hoare annotation was computed. [2018-12-09 15:35:50,159 INFO L444 ceAbstractionStarter]: At program point L981(line 981) the Hoare annotation is: (let ((.cse2 (= 0 ~pumpRunning~0)) (.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= |old(~systemActive~0)| 1)) (and (<= 2 ~waterLevel~0) (= ~pumpRunning~0 1) .cse0 .cse1) (and (= ~systemActive~0 0) .cse2 .cse1) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and .cse2 (<= 1 ~waterLevel~0) .cse0 .cse1))) [2018-12-09 15:35:50,159 INFO L448 ceAbstractionStarter]: For program point L979(lines 979 985) no Hoare annotation was computed. [2018-12-09 15:35:50,159 INFO L448 ceAbstractionStarter]: For program point L979-1(lines 979 985) no Hoare annotation was computed. [2018-12-09 15:35:50,160 INFO L444 ceAbstractionStarter]: At program point L1004(lines 959 1006) the Hoare annotation is: (let ((.cse0 (= 0 ~pumpRunning~0)) (.cse2 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= |old(~systemActive~0)| 1)) (and (= ~systemActive~0 0) .cse0 .cse1) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) (= ~pumpRunning~0 1) .cse2 .cse1) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and .cse0 (<= 1 ~waterLevel~0) .cse2 .cse1))) [2018-12-09 15:35:50,160 INFO L444 ceAbstractionStarter]: At program point L971(line 971) the Hoare annotation is: (let ((.cse2 (= 0 ~pumpRunning~0)) (.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (and (<= 2 ~waterLevel~0) (= ~pumpRunning~0 1) .cse0 .cse1) (not (= |old(~systemActive~0)| 1)) (and (= ~systemActive~0 0) .cse2 .cse1) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and .cse2 (<= 1 ~waterLevel~0) .cse0 .cse1))) [2018-12-09 15:35:50,160 INFO L448 ceAbstractionStarter]: For program point L969(lines 969 975) no Hoare annotation was computed. [2018-12-09 15:35:50,160 INFO L448 ceAbstractionStarter]: For program point L969-1(lines 969 975) no Hoare annotation was computed. [2018-12-09 15:35:50,160 INFO L448 ceAbstractionStarter]: For program point L961(lines 961 965) no Hoare annotation was computed. [2018-12-09 15:35:50,160 INFO L444 ceAbstractionStarter]: At program point L1007(lines 958 1008) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-09 15:35:50,160 INFO L444 ceAbstractionStarter]: At program point L997(line 997) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (and (and .cse0 (<= 2 ~waterLevel~0)) (not (= ~systemActive~0 0))) (not (= |old(~systemActive~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~pumpRunning~0) .cse0) (and (= ~systemActive~0 1) .cse0) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-12-09 15:35:50,160 INFO L448 ceAbstractionStarter]: For program point L995(lines 995 1001) no Hoare annotation was computed. [2018-12-09 15:35:50,160 INFO L448 ceAbstractionStarter]: For program point testEXIT(lines 949 1014) no Hoare annotation was computed. [2018-12-09 15:35:50,160 INFO L444 ceAbstractionStarter]: At program point L995-1(lines 989 1002) the Hoare annotation is: (let ((.cse2 (= 0 ~pumpRunning~0)) (.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= |old(~systemActive~0)| 1)) (and (<= 2 ~waterLevel~0) (= ~pumpRunning~0 1) .cse0 .cse1) (and (= ~systemActive~0 0) .cse2 .cse1) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and .cse2 (<= 1 ~waterLevel~0) .cse0 .cse1))) [2018-12-09 15:35:50,160 INFO L444 ceAbstractionStarter]: At program point activatePump__wrappee__lowWaterSensorENTRY(lines 806 813) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 2) (not (= ~systemActive~0 1)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-12-09 15:35:50,160 INFO L448 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorFINAL(lines 806 813) no Hoare annotation was computed. [2018-12-09 15:35:50,160 INFO L448 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 806 813) no Hoare annotation was computed. [2018-12-09 15:35:50,160 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 672 680) no Hoare annotation was computed. [2018-12-09 15:35:50,160 INFO L451 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 672 680) the Hoare annotation is: true [2018-12-09 15:35:50,160 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 672 680) no Hoare annotation was computed. [2018-12-09 15:35:50,160 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 15:35:50,160 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 15:35:50,160 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 15:35:50,160 INFO L448 ceAbstractionStarter]: For program point activatePumpEXIT(lines 814 830) no Hoare annotation was computed. [2018-12-09 15:35:50,161 INFO L444 ceAbstractionStarter]: At program point L825(line 825) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 2) (not (= ~systemActive~0 1)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-12-09 15:35:50,161 INFO L444 ceAbstractionStarter]: At program point activatePumpENTRY(lines 814 830) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 2) (not (= ~systemActive~0 1)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-12-09 15:35:50,161 INFO L448 ceAbstractionStarter]: For program point L825-1(lines 814 830) no Hoare annotation was computed. [2018-12-09 15:35:50,161 INFO L448 ceAbstractionStarter]: For program point L821(lines 821 827) no Hoare annotation was computed. [2018-12-09 15:35:50,161 INFO L444 ceAbstractionStarter]: At program point L819(line 819) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 2) (not (= ~systemActive~0 1)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-12-09 15:35:50,161 INFO L448 ceAbstractionStarter]: For program point L819-1(line 819) no Hoare annotation was computed. [2018-12-09 15:35:50,161 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 895 913) no Hoare annotation was computed. [2018-12-09 15:35:50,161 INFO L448 ceAbstractionStarter]: For program point L904(lines 904 908) no Hoare annotation was computed. [2018-12-09 15:35:50,161 INFO L451 ceAbstractionStarter]: At program point L902(line 902) the Hoare annotation is: true [2018-12-09 15:35:50,161 INFO L448 ceAbstractionStarter]: For program point L904-2(lines 904 908) no Hoare annotation was computed. [2018-12-09 15:35:50,161 INFO L451 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 895 913) the Hoare annotation is: true [2018-12-09 15:35:50,161 INFO L448 ceAbstractionStarter]: For program point L902-1(line 902) no Hoare annotation was computed. [2018-12-09 15:35:50,161 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 895 913) no Hoare annotation was computed. [2018-12-09 15:35:50,161 INFO L451 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 649 657) the Hoare annotation is: true [2018-12-09 15:35:50,161 INFO L448 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 649 657) no Hoare annotation was computed. [2018-12-09 15:35:50,161 INFO L448 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 649 657) no Hoare annotation was computed. [2018-12-09 15:35:50,161 INFO L448 ceAbstractionStarter]: For program point L609-1(lines 605 616) no Hoare annotation was computed. [2018-12-09 15:35:50,161 INFO L444 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 605 616) the Hoare annotation is: (let ((.cse8 (not (= |old(~methaneLevelCritical~0)| 1))) (.cse6 (not (= 0 ~pumpRunning~0))) (.cse4 (not (= |old(~methaneLevelCritical~0)| 0)))) (let ((.cse0 (not (= ~systemActive~0 0))) (.cse1 (and (or .cse8 .cse6) (or .cse6 .cse4))) (.cse2 (= ~methaneLevelCritical~0 0)) (.cse5 (= ~methaneLevelCritical~0 1)) (.cse7 (not (= ~systemActive~0 1))) (.cse3 (not (= ~waterLevel~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 .cse3 (or .cse2 .cse5)) (or .cse6 .cse2 .cse7 .cse3 .cse4) (or .cse8 .cse6 .cse5 .cse7 .cse3)))) [2018-12-09 15:35:50,161 INFO L448 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 605 616) no Hoare annotation was computed. [2018-12-09 15:35:50,161 INFO L451 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 617 625) the Hoare annotation is: true [2018-12-09 15:35:50,161 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 617 625) no Hoare annotation was computed. [2018-12-09 15:35:50,161 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 617 625) no Hoare annotation was computed. [2018-12-09 15:35:50,162 INFO L444 ceAbstractionStarter]: At program point L703(line 703) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (not (= ~systemActive~0 1)))) (and (or (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 1 |old(~pumpRunning~0)|)) (or (< |old(~waterLevel~0)| 2) .cse0)) (or .cse1 (not (= ~systemActive~0 0))) (or .cse1 (< |old(~waterLevel~0)| 1) .cse0))) [2018-12-09 15:35:50,162 INFO L448 ceAbstractionStarter]: For program point L701(lines 700 719) no Hoare annotation was computed. [2018-12-09 15:35:50,162 INFO L444 ceAbstractionStarter]: At program point timeShiftENTRY(lines 697 720) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 (not (= ~systemActive~0 0)) .cse1) (or .cse0 (< |old(~waterLevel~0)| 1) .cse2 .cse1) (or .cse1 (not (= 1 |old(~pumpRunning~0)|)) (or (< |old(~waterLevel~0)| 2) .cse2)))) [2018-12-09 15:35:50,162 INFO L448 ceAbstractionStarter]: For program point timeShiftEXIT(lines 697 720) no Hoare annotation was computed. [2018-12-09 15:35:50,162 INFO L448 ceAbstractionStarter]: For program point timeShiftFINAL(lines 697 720) no Hoare annotation was computed. [2018-12-09 15:35:50,162 INFO L444 ceAbstractionStarter]: At program point L710(line 710) the Hoare annotation is: (let ((.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (not (= ~systemActive~0 1))) (.cse0 (not (= 0 |old(~pumpRunning~0)|)))) (and (or .cse0 (< |old(~waterLevel~0)| 1) .cse1 (and (= ~waterLevel~0 |old(~waterLevel~0)|) .cse2)) (or (let ((.cse3 (+ ~waterLevel~0 1))) (and (<= .cse3 |old(~waterLevel~0)|) (<= |old(~waterLevel~0)| .cse3) .cse2)) (not (= 1 |old(~pumpRunning~0)|)) (or (< |old(~waterLevel~0)| 2) .cse1)) (or .cse0 (not (= ~systemActive~0 0))))) [2018-12-09 15:35:50,162 INFO L444 ceAbstractionStarter]: At program point L708(lines 708 714) the Hoare annotation is: (let ((.cse2 (= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (and .cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse3 (not (= ~systemActive~0 1)))) (and (or .cse0 (not (= ~systemActive~0 0)) .cse1) (or (and (<= 2 ~waterLevel~0) (= ~pumpRunning~0 1) .cse2) .cse0 (< |old(~waterLevel~0)| 1) .cse3 .cse1) (or (let ((.cse4 (+ ~waterLevel~0 1))) (and (<= .cse4 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0) (<= |old(~waterLevel~0)| .cse4))) (not (= 1 |old(~pumpRunning~0)|)) (or (< |old(~waterLevel~0)| 2) .cse3))))) [2018-12-09 15:35:50,162 INFO L451 ceAbstractionStarter]: At program point L418-2(lines 418 432) the Hoare annotation is: true [2018-12-09 15:35:50,162 INFO L448 ceAbstractionStarter]: For program point cleanupEXIT(lines 408 437) no Hoare annotation was computed. [2018-12-09 15:35:50,162 INFO L451 ceAbstractionStarter]: At program point L414(line 414) the Hoare annotation is: true [2018-12-09 15:35:50,162 INFO L448 ceAbstractionStarter]: For program point L414-1(line 414) no Hoare annotation was computed. [2018-12-09 15:35:50,162 INFO L451 ceAbstractionStarter]: At program point cleanupENTRY(lines 408 437) the Hoare annotation is: true [2018-12-09 15:35:50,162 INFO L451 ceAbstractionStarter]: At program point L433(lines 408 437) the Hoare annotation is: true [2018-12-09 15:35:50,162 INFO L448 ceAbstractionStarter]: For program point L429(line 429) no Hoare annotation was computed. [2018-12-09 15:35:50,162 INFO L448 ceAbstractionStarter]: For program point L422(lines 422 426) no Hoare annotation was computed. [2018-12-09 15:35:50,162 INFO L451 ceAbstractionStarter]: At program point L422-1(lines 422 426) the Hoare annotation is: true [2018-12-09 15:35:50,162 INFO L448 ceAbstractionStarter]: For program point L419(line 419) no Hoare annotation was computed. [2018-12-09 15:35:50,162 INFO L444 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 581 592) the Hoare annotation is: (or (= ~waterLevel~0 |old(~waterLevel~0)|) (not (= 1 ~pumpRunning~0)) (or (< |old(~waterLevel~0)| 2) (not (= ~systemActive~0 1)))) [2018-12-09 15:35:50,162 INFO L448 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 581 592) no Hoare annotation was computed. [2018-12-09 15:35:50,162 INFO L448 ceAbstractionStarter]: For program point L585-1(lines 581 592) no Hoare annotation was computed. [2018-12-09 15:35:50,163 INFO L448 ceAbstractionStarter]: For program point setupEXIT(lines 465 471) no Hoare annotation was computed. [2018-12-09 15:35:50,163 INFO L451 ceAbstractionStarter]: At program point setupFINAL(lines 465 471) the Hoare annotation is: true [2018-12-09 15:35:50,163 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 15:35:50,163 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 15:35:50,163 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 15:35:50,163 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 15:35:50,163 INFO L448 ceAbstractionStarter]: For program point L737(lines 737 745) no Hoare annotation was computed. [2018-12-09 15:35:50,163 INFO L444 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 729 753) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-12-09 15:35:50,163 INFO L444 ceAbstractionStarter]: At program point L735(line 735) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-12-09 15:35:50,163 INFO L448 ceAbstractionStarter]: For program point L735-1(line 735) no Hoare annotation was computed. [2018-12-09 15:35:50,163 INFO L448 ceAbstractionStarter]: For program point L733(lines 733 750) no Hoare annotation was computed. [2018-12-09 15:35:50,163 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 729 753) no Hoare annotation was computed. [2018-12-09 15:35:50,163 INFO L444 ceAbstractionStarter]: At program point L748(line 748) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-12-09 15:35:50,163 INFO L448 ceAbstractionStarter]: For program point L748-1(lines 729 753) no Hoare annotation was computed. [2018-12-09 15:35:50,163 INFO L444 ceAbstractionStarter]: At program point L743(line 743) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1)) (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~5) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-12-09 15:35:50,163 INFO L444 ceAbstractionStarter]: At program point L739(line 739) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1)) (and (<= 2 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-12-09 15:35:50,163 INFO L448 ceAbstractionStarter]: For program point waterRiseEXIT(lines 593 604) no Hoare annotation was computed. [2018-12-09 15:35:50,163 INFO L448 ceAbstractionStarter]: For program point L597-1(lines 593 604) no Hoare annotation was computed. [2018-12-09 15:35:50,163 INFO L444 ceAbstractionStarter]: At program point waterRiseENTRY(lines 593 604) the Hoare annotation is: (let ((.cse0 (not (= 0 ~pumpRunning~0))) (.cse2 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (< |old(~waterLevel~0)| 1) .cse1 .cse2) (or .cse0 (not (= ~systemActive~0 0)) .cse2) (or .cse2 .cse1 (< |old(~waterLevel~0)| 2) (not (= 1 ~pumpRunning~0))))) [2018-12-09 15:35:50,163 INFO L448 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 682 689) no Hoare annotation was computed. [2018-12-09 15:35:50,163 INFO L448 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 686) no Hoare annotation was computed. [2018-12-09 15:35:50,164 INFO L451 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 682 689) the Hoare annotation is: true [2018-12-09 15:35:50,164 INFO L448 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 682 689) no Hoare annotation was computed. [2018-12-09 15:35:50,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 03:35:50 BoogieIcfgContainer [2018-12-09 15:35:50,171 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 15:35:50,171 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 15:35:50,171 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 15:35:50,171 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 15:35:50,172 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:35:30" (3/4) ... [2018-12-09 15:35:50,174 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 15:35:50,178 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-12-09 15:35:50,178 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-12-09 15:35:50,178 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification4_spec__1 [2018-12-09 15:35:50,178 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 15:35:50,178 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2018-12-09 15:35:50,178 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure stopSystem [2018-12-09 15:35:50,178 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-12-09 15:35:50,178 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterLevel [2018-12-09 15:35:50,178 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-12-09 15:35:50,178 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-12-09 15:35:50,178 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2018-12-09 15:35:50,178 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-12-09 15:35:50,178 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-12-09 15:35:50,178 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-12-09 15:35:50,178 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-12-09 15:35:50,178 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-12-09 15:35:50,178 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump__wrappee__lowWaterSensor [2018-12-09 15:35:50,178 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterSensorDry [2018-12-09 15:35:50,178 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 15:35:50,178 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-12-09 15:35:50,179 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-12-09 15:35:50,179 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure getWaterLevel [2018-12-09 15:35:50,179 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-12-09 15:35:50,179 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2018-12-09 15:35:50,179 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-12-09 15:35:50,179 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-12-09 15:35:50,179 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-12-09 15:35:50,179 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-12-09 15:35:50,179 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2018-12-09 15:35:50,179 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-12-09 15:35:50,179 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-12-09 15:35:50,184 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 48 nodes and edges [2018-12-09 15:35:50,184 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2018-12-09 15:35:50,184 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-12-09 15:35:50,185 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-09 15:35:50,185 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-09 15:35:50,185 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 15:35:50,203 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(systemActive) == 1) || ((systemActive == 0 && 0 == pumpRunning) && splverifierCounter == 0)) || !(0 == \old(pumpRunning))) || (((2 <= waterLevel && pumpRunning == 1) && systemActive == 1) && splverifierCounter == 0)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0)) || (((0 == pumpRunning && 1 <= waterLevel) && systemActive == 1) && splverifierCounter == 0) [2018-12-09 15:35:50,203 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-12-09 15:35:50,228 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_6d0c22e4-3c9e-4c5f-b6ca-974670eb001a/bin-2019/utaipan/witness.graphml [2018-12-09 15:35:50,228 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 15:35:50,228 INFO L168 Benchmark]: Toolchain (without parser) took 19923.06 ms. Allocated memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: 1.2 GB). Free memory was 947.0 MB in the beginning and 1.6 GB in the end (delta: -688.9 MB). Peak memory consumption was 557.9 MB. Max. memory is 11.5 GB. [2018-12-09 15:35:50,229 INFO L168 Benchmark]: CDTParser took 0.18 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 15:35:50,229 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.24 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.2 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -132.4 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. [2018-12-09 15:35:50,229 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.69 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 15:35:50,229 INFO L168 Benchmark]: Boogie Preprocessor took 21.25 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 15:35:50,229 INFO L168 Benchmark]: RCFGBuilder took 347.75 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 52.0 MB). Peak memory consumption was 52.0 MB. Max. memory is 11.5 GB. [2018-12-09 15:35:50,229 INFO L168 Benchmark]: TraceAbstraction took 19183.73 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 1.7 GB in the end (delta: -638.4 MB). Peak memory consumption was 1.4 GB. Max. memory is 11.5 GB. [2018-12-09 15:35:50,230 INFO L168 Benchmark]: Witness Printer took 56.81 ms. Allocated memory is still 2.3 GB. Free memory was 1.7 GB in the beginning and 1.6 GB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. [2018-12-09 15:35:50,231 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 290.24 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.2 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -132.4 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.69 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.25 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. * RCFGBuilder took 347.75 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 52.0 MB). Peak memory consumption was 52.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 19183.73 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 1.7 GB in the end (delta: -638.4 MB). Peak memory consumption was 1.4 GB. Max. memory is 11.5 GB. * Witness Printer took 56.81 ms. Allocated memory is still 2.3 GB. Free memory was 1.7 GB in the beginning and 1.6 GB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 686]: 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: 958]: Loop Invariant Derived loop invariant: ((!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 418]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 408]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 959]: Loop Invariant Derived loop invariant: (((((!(\old(systemActive) == 1) || ((systemActive == 0 && 0 == pumpRunning) && splverifierCounter == 0)) || !(0 == \old(pumpRunning))) || (((2 <= waterLevel && pumpRunning == 1) && systemActive == 1) && splverifierCounter == 0)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0)) || (((0 == pumpRunning && 1 <= waterLevel) && systemActive == 1) && splverifierCounter == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 32 procedures, 172 locations, 1 error locations. SAFE Result, 19.1s OverallTime, 15 OverallIterations, 4 TraceHistogramMax, 7.5s AutomataDifference, 0.0s DeadEndRemovalTime, 2.7s HoareAnnotationTime, HoareTripleCheckerStatistics: 3090 SDtfs, 3541 SDslu, 8011 SDs, 0 SdLazy, 8802 SolverSat, 1848 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.1s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 3464 GetRequests, 3219 SyntacticMatches, 35 SemanticMatches, 210 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1315 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1834occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 4.1s AbstIntTime, 8 AbstIntIterations, 2 AbstIntStrong, 0.9985023167296279 AbsIntWeakeningRatio, 0.834319526627219 AbsIntAvgWeakeningVarsNumRemoved, 33.86094674556213 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 15 MinimizatonAttempts, 956 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 72 LocationsWithAnnotation, 5994 PreInvPairs, 6090 NumberOfFragments, 1617 HoareAnnotationTreeSize, 5994 FomulaSimplifications, 18440 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 72 FomulaSimplificationsInter, 19145 FormulaSimplificationTreeSizeReductionInter, 2.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 3674 NumberOfCodeBlocks, 3599 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 5092 ConstructedInterpolants, 0 QuantifiedInterpolants, 1387703 SizeOfPredicates, 30 NumberOfNonLiveVariables, 6761 ConjunctsInSsa, 70 ConjunctsInUnsatCore, 29 InterpolantComputations, 10 PerfectInterpolantSequences, 2365/2574 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...