./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product62_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_4462b983-cb5d-4600-a131-66cd1cd3a45e/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4462b983-cb5d-4600-a131-66cd1cd3a45e/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4462b983-cb5d-4600-a131-66cd1cd3a45e/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4462b983-cb5d-4600-a131-66cd1cd3a45e/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product62_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_4462b983-cb5d-4600-a131-66cd1cd3a45e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4462b983-cb5d-4600-a131-66cd1cd3a45e/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 3c089be7b4887d2975165f6135c093492cb2095b ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 00:14:45,524 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 00:14:45,525 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 00:14:45,531 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 00:14:45,532 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 00:14:45,532 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 00:14:45,533 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 00:14:45,534 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 00:14:45,535 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 00:14:45,536 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 00:14:45,537 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 00:14:45,537 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 00:14:45,537 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 00:14:45,538 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 00:14:45,539 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 00:14:45,539 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 00:14:45,540 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 00:14:45,541 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 00:14:45,542 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 00:14:45,543 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 00:14:45,544 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 00:14:45,545 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 00:14:45,546 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 00:14:45,547 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 00:14:45,547 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 00:14:45,547 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 00:14:45,548 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 00:14:45,548 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 00:14:45,549 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 00:14:45,550 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 00:14:45,550 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 00:14:45,551 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 00:14:45,551 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 00:14:45,551 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 00:14:45,552 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 00:14:45,552 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 00:14:45,552 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4462b983-cb5d-4600-a131-66cd1cd3a45e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 00:14:45,561 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 00:14:45,561 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 00:14:45,561 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 00:14:45,562 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 00:14:45,562 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 00:14:45,562 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 00:14:45,562 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 00:14:45,562 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 00:14:45,562 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 00:14:45,563 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 00:14:45,563 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 00:14:45,563 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 00:14:45,563 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 00:14:45,564 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 00:14:45,564 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 00:14:45,564 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 00:14:45,564 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 00:14:45,564 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 00:14:45,564 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 00:14:45,565 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 00:14:45,565 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 00:14:45,565 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 00:14:45,565 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 00:14:45,565 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 00:14:45,565 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 00:14:45,566 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 00:14:45,566 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 00:14:45,566 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 00:14:45,566 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 00:14:45,566 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 00:14:45,566 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 00:14:45,566 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 00:14:45,567 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 00:14:45,567 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 00:14:45,567 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 00:14:45,567 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 00:14:45,567 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_4462b983-cb5d-4600-a131-66cd1cd3a45e/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 -> 3c089be7b4887d2975165f6135c093492cb2095b [2018-12-09 00:14:45,589 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 00:14:45,595 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 00:14:45,597 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 00:14:45,598 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 00:14:45,598 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 00:14:45,599 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4462b983-cb5d-4600-a131-66cd1cd3a45e/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product62_true-unreach-call_false-termination.cil.c [2018-12-09 00:14:45,643 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4462b983-cb5d-4600-a131-66cd1cd3a45e/bin-2019/utaipan/data/398e5e383/858567c87ec94d129199f3f17d20d40d/FLAGb024e5592 [2018-12-09 00:14:45,986 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 00:14:45,987 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4462b983-cb5d-4600-a131-66cd1cd3a45e/sv-benchmarks/c/product-lines/minepump_spec1_product62_true-unreach-call_false-termination.cil.c [2018-12-09 00:14:45,993 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4462b983-cb5d-4600-a131-66cd1cd3a45e/bin-2019/utaipan/data/398e5e383/858567c87ec94d129199f3f17d20d40d/FLAGb024e5592 [2018-12-09 00:14:46,001 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4462b983-cb5d-4600-a131-66cd1cd3a45e/bin-2019/utaipan/data/398e5e383/858567c87ec94d129199f3f17d20d40d [2018-12-09 00:14:46,003 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 00:14:46,004 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 00:14:46,004 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 00:14:46,004 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 00:14:46,006 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 00:14:46,007 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:14:46" (1/1) ... [2018-12-09 00:14:46,009 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46c0e1c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:14:46, skipping insertion in model container [2018-12-09 00:14:46,009 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:14:46" (1/1) ... [2018-12-09 00:14:46,013 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 00:14:46,040 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 00:14:46,210 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 00:14:46,261 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 00:14:46,302 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 00:14:46,317 INFO L195 MainTranslator]: Completed translation [2018-12-09 00:14:46,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:14:46 WrapperNode [2018-12-09 00:14:46,317 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 00:14:46,318 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 00:14:46,318 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 00:14:46,318 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 00:14:46,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:14:46" (1/1) ... [2018-12-09 00:14:46,333 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:14:46" (1/1) ... [2018-12-09 00:14:46,338 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 00:14:46,338 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 00:14:46,338 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 00:14:46,338 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 00:14:46,344 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:14:46" (1/1) ... [2018-12-09 00:14:46,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:14:46" (1/1) ... [2018-12-09 00:14:46,346 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:14:46" (1/1) ... [2018-12-09 00:14:46,346 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:14:46" (1/1) ... [2018-12-09 00:14:46,353 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:14:46" (1/1) ... [2018-12-09 00:14:46,357 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:14:46" (1/1) ... [2018-12-09 00:14:46,358 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:14:46" (1/1) ... [2018-12-09 00:14:46,360 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 00:14:46,361 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 00:14:46,361 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 00:14:46,361 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 00:14:46,361 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:14:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4462b983-cb5d-4600-a131-66cd1cd3a45e/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 00:14:46,392 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-09 00:14:46,392 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-09 00:14:46,393 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 00:14:46,393 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 00:14:46,393 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-12-09 00:14:46,393 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-12-09 00:14:46,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 00:14:46,393 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-09 00:14:46,393 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-09 00:14:46,393 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-09 00:14:46,393 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-09 00:14:46,393 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-09 00:14:46,393 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-09 00:14:46,393 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-09 00:14:46,393 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-09 00:14:46,393 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-09 00:14:46,394 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-09 00:14:46,394 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2018-12-09 00:14:46,394 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2018-12-09 00:14:46,394 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-12-09 00:14:46,394 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-12-09 00:14:46,394 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-09 00:14:46,394 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-09 00:14:46,394 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-09 00:14:46,394 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-09 00:14:46,394 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-09 00:14:46,394 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-09 00:14:46,394 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-09 00:14:46,394 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-09 00:14:46,394 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-09 00:14:46,394 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-09 00:14:46,394 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-09 00:14:46,395 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-09 00:14:46,395 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2018-12-09 00:14:46,395 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2018-12-09 00:14:46,395 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-12-09 00:14:46,395 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-12-09 00:14:46,395 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-09 00:14:46,395 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-09 00:14:46,395 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-09 00:14:46,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-09 00:14:46,395 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-09 00:14:46,395 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-09 00:14:46,395 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2018-12-09 00:14:46,395 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2018-12-09 00:14:46,395 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-09 00:14:46,395 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-09 00:14:46,395 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-09 00:14:46,396 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-09 00:14:46,396 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-12-09 00:14:46,396 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-12-09 00:14:46,396 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-09 00:14:46,396 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-09 00:14:46,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-09 00:14:46,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 00:14:46,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 00:14:46,396 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-09 00:14:46,396 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-09 00:14:46,396 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-09 00:14:46,396 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-09 00:14:46,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 00:14:46,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 00:14:46,396 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2018-12-09 00:14:46,396 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2018-12-09 00:14:46,704 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 00:14:46,704 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-09 00:14:46,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:14:46 BoogieIcfgContainer [2018-12-09 00:14:46,704 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 00:14:46,705 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 00:14:46,705 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 00:14:46,707 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 00:14:46,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 12:14:46" (1/3) ... [2018-12-09 00:14:46,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6443f2ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:14:46, skipping insertion in model container [2018-12-09 00:14:46,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:14:46" (2/3) ... [2018-12-09 00:14:46,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6443f2ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:14:46, skipping insertion in model container [2018-12-09 00:14:46,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:14:46" (3/3) ... [2018-12-09 00:14:46,710 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product62_true-unreach-call_false-termination.cil.c [2018-12-09 00:14:46,716 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 00:14:46,721 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 00:14:46,730 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 00:14:46,749 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 00:14:46,749 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 00:14:46,749 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 00:14:46,750 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 00:14:46,750 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 00:14:46,750 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 00:14:46,750 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 00:14:46,750 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 00:14:46,762 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states. [2018-12-09 00:14:46,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-09 00:14:46,768 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:14:46,768 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 00:14:46,770 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:14:46,773 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:14:46,773 INFO L82 PathProgramCache]: Analyzing trace with hash 1697508556, now seen corresponding path program 1 times [2018-12-09 00:14:46,774 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:14:46,801 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:14:46,801 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:14:46,801 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:14:46,802 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:14:46,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:14:46,906 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 00:14:46,907 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 00:14:46,908 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 00:14:46,908 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 00:14:46,911 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 00:14:46,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 00:14:46,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 00:14:46,920 INFO L87 Difference]: Start difference. First operand 167 states. Second operand 2 states. [2018-12-09 00:14:46,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:14:46,944 INFO L93 Difference]: Finished difference Result 308 states and 383 transitions. [2018-12-09 00:14:46,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 00:14:46,945 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-09 00:14:46,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:14:46,952 INFO L225 Difference]: With dead ends: 308 [2018-12-09 00:14:46,952 INFO L226 Difference]: Without dead ends: 154 [2018-12-09 00:14:46,955 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 00:14:46,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2018-12-09 00:14:46,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2018-12-09 00:14:46,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2018-12-09 00:14:46,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 183 transitions. [2018-12-09 00:14:46,986 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 183 transitions. Word has length 46 [2018-12-09 00:14:46,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:14:46,987 INFO L480 AbstractCegarLoop]: Abstraction has 154 states and 183 transitions. [2018-12-09 00:14:46,987 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 00:14:46,987 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 183 transitions. [2018-12-09 00:14:46,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-09 00:14:46,989 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:14:46,989 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 00:14:46,989 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:14:46,989 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:14:46,990 INFO L82 PathProgramCache]: Analyzing trace with hash 1146648345, now seen corresponding path program 1 times [2018-12-09 00:14:46,990 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:14:46,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:14:46,990 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:14:46,991 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:14:46,991 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:14:47,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:14:47,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:14:47,043 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 00:14:47,043 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 00:14:47,043 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 00:14:47,044 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 00:14:47,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 00:14:47,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 00:14:47,045 INFO L87 Difference]: Start difference. First operand 154 states and 183 transitions. Second operand 3 states. [2018-12-09 00:14:47,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:14:47,058 INFO L93 Difference]: Finished difference Result 253 states and 301 transitions. [2018-12-09 00:14:47,059 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 00:14:47,059 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-09 00:14:47,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:14:47,060 INFO L225 Difference]: With dead ends: 253 [2018-12-09 00:14:47,060 INFO L226 Difference]: Without dead ends: 145 [2018-12-09 00:14:47,061 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 00:14:47,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2018-12-09 00:14:47,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2018-12-09 00:14:47,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2018-12-09 00:14:47,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 171 transitions. [2018-12-09 00:14:47,069 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 171 transitions. Word has length 47 [2018-12-09 00:14:47,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:14:47,069 INFO L480 AbstractCegarLoop]: Abstraction has 145 states and 171 transitions. [2018-12-09 00:14:47,070 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 00:14:47,070 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 171 transitions. [2018-12-09 00:14:47,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-12-09 00:14:47,071 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:14:47,071 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] [2018-12-09 00:14:47,071 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:14:47,071 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:14:47,071 INFO L82 PathProgramCache]: Analyzing trace with hash 244280267, now seen corresponding path program 1 times [2018-12-09 00:14:47,071 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:14:47,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:14:47,072 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:14:47,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:14:47,072 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:14:47,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:14:47,131 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 00:14:47,131 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 00:14:47,131 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 00:14:47,132 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 00:14:47,132 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 00:14:47,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 00:14:47,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 00:14:47,132 INFO L87 Difference]: Start difference. First operand 145 states and 171 transitions. Second operand 3 states. [2018-12-09 00:14:47,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:14:47,145 INFO L93 Difference]: Finished difference Result 266 states and 319 transitions. [2018-12-09 00:14:47,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 00:14:47,145 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2018-12-09 00:14:47,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:14:47,146 INFO L225 Difference]: With dead ends: 266 [2018-12-09 00:14:47,146 INFO L226 Difference]: Without dead ends: 145 [2018-12-09 00:14:47,147 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 00:14:47,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2018-12-09 00:14:47,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2018-12-09 00:14:47,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2018-12-09 00:14:47,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 170 transitions. [2018-12-09 00:14:47,155 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 170 transitions. Word has length 52 [2018-12-09 00:14:47,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:14:47,156 INFO L480 AbstractCegarLoop]: Abstraction has 145 states and 170 transitions. [2018-12-09 00:14:47,156 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 00:14:47,156 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 170 transitions. [2018-12-09 00:14:47,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-12-09 00:14:47,157 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:14:47,158 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 00:14:47,158 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:14:47,158 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:14:47,158 INFO L82 PathProgramCache]: Analyzing trace with hash 97775123, now seen corresponding path program 1 times [2018-12-09 00:14:47,158 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:14:47,159 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:14:47,159 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:14:47,159 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:14:47,159 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:14:47,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:14:47,227 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 00:14:47,228 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 00:14:47,228 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-09 00:14:47,228 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 00:14:47,228 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 00:14:47,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 00:14:47,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 00:14:47,229 INFO L87 Difference]: Start difference. First operand 145 states and 170 transitions. Second operand 5 states. [2018-12-09 00:14:47,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:14:47,585 INFO L93 Difference]: Finished difference Result 380 states and 460 transitions. [2018-12-09 00:14:47,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 00:14:47,586 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 70 [2018-12-09 00:14:47,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:14:47,588 INFO L225 Difference]: With dead ends: 380 [2018-12-09 00:14:47,588 INFO L226 Difference]: Without dead ends: 259 [2018-12-09 00:14:47,589 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-09 00:14:47,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2018-12-09 00:14:47,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 240. [2018-12-09 00:14:47,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2018-12-09 00:14:47,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 272 transitions. [2018-12-09 00:14:47,614 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 272 transitions. Word has length 70 [2018-12-09 00:14:47,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:14:47,615 INFO L480 AbstractCegarLoop]: Abstraction has 240 states and 272 transitions. [2018-12-09 00:14:47,615 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 00:14:47,615 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 272 transitions. [2018-12-09 00:14:47,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-12-09 00:14:47,617 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:14:47,617 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 00:14:47,617 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:14:47,617 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:14:47,617 INFO L82 PathProgramCache]: Analyzing trace with hash 1410600138, now seen corresponding path program 1 times [2018-12-09 00:14:47,617 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:14:47,618 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:14:47,618 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:14:47,618 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:14:47,619 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:14:47,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:14:47,715 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 00:14:47,715 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 00:14:47,715 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-09 00:14:47,715 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 00:14:47,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 00:14:47,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 00:14:47,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-09 00:14:47,716 INFO L87 Difference]: Start difference. First operand 240 states and 272 transitions. Second operand 8 states. [2018-12-09 00:14:47,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:14:47,751 INFO L93 Difference]: Finished difference Result 463 states and 539 transitions. [2018-12-09 00:14:47,751 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 00:14:47,751 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 84 [2018-12-09 00:14:47,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:14:47,754 INFO L225 Difference]: With dead ends: 463 [2018-12-09 00:14:47,754 INFO L226 Difference]: Without dead ends: 247 [2018-12-09 00:14:47,755 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-09 00:14:47,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2018-12-09 00:14:47,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 244. [2018-12-09 00:14:47,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2018-12-09 00:14:47,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 276 transitions. [2018-12-09 00:14:47,769 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 276 transitions. Word has length 84 [2018-12-09 00:14:47,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:14:47,770 INFO L480 AbstractCegarLoop]: Abstraction has 244 states and 276 transitions. [2018-12-09 00:14:47,770 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 00:14:47,770 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 276 transitions. [2018-12-09 00:14:47,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-12-09 00:14:47,771 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:14:47,771 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 00:14:47,771 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:14:47,771 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:14:47,771 INFO L82 PathProgramCache]: Analyzing trace with hash 709000264, now seen corresponding path program 1 times [2018-12-09 00:14:47,771 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:14:47,772 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:14:47,772 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:14:47,772 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:14:47,772 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:14:47,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:14:47,835 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 00:14:47,835 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 00:14:47,835 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 00:14:47,836 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 00:14:47,836 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 00:14:47,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 00:14:47,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 00:14:47,836 INFO L87 Difference]: Start difference. First operand 244 states and 276 transitions. Second operand 6 states. [2018-12-09 00:14:47,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:14:47,952 INFO L93 Difference]: Finished difference Result 669 states and 778 transitions. [2018-12-09 00:14:47,952 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 00:14:47,952 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 84 [2018-12-09 00:14:47,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:14:47,954 INFO L225 Difference]: With dead ends: 669 [2018-12-09 00:14:47,955 INFO L226 Difference]: Without dead ends: 449 [2018-12-09 00:14:47,955 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-12-09 00:14:47,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2018-12-09 00:14:47,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 443. [2018-12-09 00:14:47,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2018-12-09 00:14:47,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 502 transitions. [2018-12-09 00:14:47,982 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 502 transitions. Word has length 84 [2018-12-09 00:14:47,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:14:47,983 INFO L480 AbstractCegarLoop]: Abstraction has 443 states and 502 transitions. [2018-12-09 00:14:47,983 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 00:14:47,983 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 502 transitions. [2018-12-09 00:14:47,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-12-09 00:14:47,984 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:14:47,984 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 00:14:47,985 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:14:47,985 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:14:47,985 INFO L82 PathProgramCache]: Analyzing trace with hash -1045486588, now seen corresponding path program 1 times [2018-12-09 00:14:47,985 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:14:47,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:14:47,986 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:14:47,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:14:47,986 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:14:47,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:14:48,044 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 00:14:48,044 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 00:14:48,044 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 00:14:48,044 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 00:14:48,044 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 00:14:48,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 00:14:48,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 00:14:48,045 INFO L87 Difference]: Start difference. First operand 443 states and 502 transitions. Second operand 7 states. [2018-12-09 00:14:48,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:14:48,377 INFO L93 Difference]: Finished difference Result 478 states and 556 transitions. [2018-12-09 00:14:48,378 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-09 00:14:48,378 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 88 [2018-12-09 00:14:48,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:14:48,379 INFO L225 Difference]: With dead ends: 478 [2018-12-09 00:14:48,379 INFO L226 Difference]: Without dead ends: 475 [2018-12-09 00:14:48,380 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-12-09 00:14:48,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2018-12-09 00:14:48,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 443. [2018-12-09 00:14:48,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2018-12-09 00:14:48,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 501 transitions. [2018-12-09 00:14:48,394 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 501 transitions. Word has length 88 [2018-12-09 00:14:48,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:14:48,395 INFO L480 AbstractCegarLoop]: Abstraction has 443 states and 501 transitions. [2018-12-09 00:14:48,395 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 00:14:48,395 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 501 transitions. [2018-12-09 00:14:48,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-12-09 00:14:48,396 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:14:48,396 INFO L402 BasicCegarLoop]: trace histogram [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] [2018-12-09 00:14:48,396 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:14:48,396 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:14:48,397 INFO L82 PathProgramCache]: Analyzing trace with hash 1921303165, now seen corresponding path program 1 times [2018-12-09 00:14:48,397 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:14:48,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:14:48,397 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:14:48,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:14:48,398 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:14:48,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:14:48,436 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-09 00:14:48,436 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 00:14:48,436 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 00:14:48,436 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 00:14:48,437 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 00:14:48,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 00:14:48,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 00:14:48,437 INFO L87 Difference]: Start difference. First operand 443 states and 501 transitions. Second operand 6 states. [2018-12-09 00:14:48,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:14:48,475 INFO L93 Difference]: Finished difference Result 876 states and 1014 transitions. [2018-12-09 00:14:48,475 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 00:14:48,476 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 104 [2018-12-09 00:14:48,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:14:48,477 INFO L225 Difference]: With dead ends: 876 [2018-12-09 00:14:48,477 INFO L226 Difference]: Without dead ends: 457 [2018-12-09 00:14:48,478 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-09 00:14:48,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2018-12-09 00:14:48,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 453. [2018-12-09 00:14:48,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 453 states. [2018-12-09 00:14:48,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 511 transitions. [2018-12-09 00:14:48,491 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 511 transitions. Word has length 104 [2018-12-09 00:14:48,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:14:48,491 INFO L480 AbstractCegarLoop]: Abstraction has 453 states and 511 transitions. [2018-12-09 00:14:48,491 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 00:14:48,491 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 511 transitions. [2018-12-09 00:14:48,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-12-09 00:14:48,492 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:14:48,492 INFO L402 BasicCegarLoop]: trace histogram [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] [2018-12-09 00:14:48,493 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:14:48,493 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:14:48,493 INFO L82 PathProgramCache]: Analyzing trace with hash -1593561920, now seen corresponding path program 1 times [2018-12-09 00:14:48,493 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:14:48,493 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:14:48,494 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:14:48,494 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:14:48,494 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:14:48,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:14:48,546 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-09 00:14:48,546 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 00:14:48,546 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 00:14:48,546 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 00:14:48,546 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 00:14:48,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 00:14:48,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 00:14:48,547 INFO L87 Difference]: Start difference. First operand 453 states and 511 transitions. Second operand 4 states. [2018-12-09 00:14:48,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:14:48,685 INFO L93 Difference]: Finished difference Result 1353 states and 1602 transitions. [2018-12-09 00:14:48,685 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 00:14:48,685 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 104 [2018-12-09 00:14:48,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:14:48,688 INFO L225 Difference]: With dead ends: 1353 [2018-12-09 00:14:48,688 INFO L226 Difference]: Without dead ends: 924 [2018-12-09 00:14:48,689 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 1 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 00:14:48,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2018-12-09 00:14:48,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 909. [2018-12-09 00:14:48,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 909 states. [2018-12-09 00:14:48,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1055 transitions. [2018-12-09 00:14:48,717 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1055 transitions. Word has length 104 [2018-12-09 00:14:48,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:14:48,717 INFO L480 AbstractCegarLoop]: Abstraction has 909 states and 1055 transitions. [2018-12-09 00:14:48,717 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 00:14:48,717 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1055 transitions. [2018-12-09 00:14:48,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2018-12-09 00:14:48,718 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:14:48,718 INFO L402 BasicCegarLoop]: trace histogram [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 00:14:48,718 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:14:48,718 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:14:48,719 INFO L82 PathProgramCache]: Analyzing trace with hash -1641621798, now seen corresponding path program 1 times [2018-12-09 00:14:48,719 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:14:48,719 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:14:48,719 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:14:48,719 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:14:48,719 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:14:48,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:14:48,810 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 00:14:48,810 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 00:14:48,810 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 00:14:48,811 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 109 with the following transitions: [2018-12-09 00:14:48,812 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [33], [36], [37], [38], [50], [53], [55], [56], [59], [63], [64], [65], [80], [83], [85], [94], [98], [102], [105], [110], [113], [118], [124], [129], [137], [138], [141], [142], [143], [145], [150], [153], [154], [156], [161], [163], [164], [169], [171], [198], [199], [205], [209], [223], [229], [232], [234], [237], [247], [250], [254], [255], [258], [260], [263], [265], [268], [277], [278], [279], [280], [281], [282], [283], [284], [285], [293], [294], [297], [299], [300], [307], [308], [309], [310], [311], [312], [315], [319], [320], [321], [322], [323], [324], [331], [332], [333], [335], [336], [337], [339], [340], [341], [342], [347], [348], [349], [350], [351] [2018-12-09 00:14:48,842 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 00:14:48,842 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 00:14:49,144 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 00:14:49,145 INFO L272 AbstractInterpreter]: Visited 106 different actions 108 times. Never merged. Never widened. Performed 3374 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3374 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-12-09 00:14:49,150 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:14:49,150 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 00:14:49,151 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 00:14:49,151 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4462b983-cb5d-4600-a131-66cd1cd3a45e/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 00:14:49,158 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:14:49,158 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 00:14:49,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:14:49,233 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 00:14:49,389 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:14:49,390 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 00:14:50,037 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 00:14:50,052 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-09 00:14:50,052 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 9] total 25 [2018-12-09 00:14:50,052 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 00:14:50,053 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 00:14:50,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 00:14:50,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-12-09 00:14:50,053 INFO L87 Difference]: Start difference. First operand 909 states and 1055 transitions. Second operand 8 states. [2018-12-09 00:14:50,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:14:50,223 INFO L93 Difference]: Finished difference Result 1764 states and 2059 transitions. [2018-12-09 00:14:50,223 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 00:14:50,223 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 108 [2018-12-09 00:14:50,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:14:50,226 INFO L225 Difference]: With dead ends: 1764 [2018-12-09 00:14:50,226 INFO L226 Difference]: Without dead ends: 879 [2018-12-09 00:14:50,227 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 198 SyntacticMatches, 8 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-12-09 00:14:50,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states. [2018-12-09 00:14:50,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 879. [2018-12-09 00:14:50,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 879 states. [2018-12-09 00:14:50,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 879 states to 879 states and 1006 transitions. [2018-12-09 00:14:50,251 INFO L78 Accepts]: Start accepts. Automaton has 879 states and 1006 transitions. Word has length 108 [2018-12-09 00:14:50,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:14:50,251 INFO L480 AbstractCegarLoop]: Abstraction has 879 states and 1006 transitions. [2018-12-09 00:14:50,251 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 00:14:50,251 INFO L276 IsEmpty]: Start isEmpty. Operand 879 states and 1006 transitions. [2018-12-09 00:14:50,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2018-12-09 00:14:50,254 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:14:50,254 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 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] [2018-12-09 00:14:50,254 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:14:50,254 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:14:50,254 INFO L82 PathProgramCache]: Analyzing trace with hash 885904890, now seen corresponding path program 1 times [2018-12-09 00:14:50,254 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:14:50,255 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:14:50,255 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:14:50,255 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:14:50,255 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:14:50,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:14:50,360 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-12-09 00:14:50,361 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 00:14:50,361 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 00:14:50,361 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 179 with the following transitions: [2018-12-09 00:14:50,361 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [21], [23], [29], [33], [36], [37], [38], [39], [41], [44], [48], [49], [50], [53], [55], [56], [59], [63], [64], [65], [68], [70], [76], [80], [83], [84], [85], [94], [98], [102], [105], [108], [110], [113], [116], [118], [124], [129], [137], [138], [139], [140], [141], [142], [143], [145], [150], [153], [154], [156], [161], [163], [164], [169], [171], [198], [199], [202], [205], [209], [215], [218], [222], [223], [229], [232], [234], [237], [244], [247], [250], [254], [255], [258], [260], [263], [265], [268], [274], [276], [277], [278], [279], [280], [281], [282], [283], [284], [285], [287], [288], [291], [292], [293], [294], [295], [296], [297], [299], [300], [301], [302], [305], [306], [307], [308], [309], [310], [311], [312], [315], [316], [319], [320], [321], [322], [323], [324], [329], [330], [331], [332], [333], [334], [335], [336], [337], [339], [340], [341], [342], [345], [346], [347], [348], [349], [350], [351] [2018-12-09 00:14:50,364 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 00:14:50,364 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 00:14:52,441 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 00:14:52,442 INFO L272 AbstractInterpreter]: Visited 145 different actions 1605 times. Merged at 21 different actions 110 times. Never widened. Performed 58307 root evaluator evaluations with a maximum evaluation depth of 5. Performed 58307 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 26 fixpoints after 5 different actions. Largest state had 133 variables. [2018-12-09 00:14:52,445 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:14:52,445 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 00:14:52,445 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 00:14:52,445 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4462b983-cb5d-4600-a131-66cd1cd3a45e/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 00:14:52,451 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:14:52,451 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 00:14:52,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:14:52,532 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 00:14:52,614 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-12-09 00:14:52,614 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 00:14:52,897 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-12-09 00:14:52,912 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-09 00:14:52,912 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 9] total 25 [2018-12-09 00:14:52,912 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 00:14:52,912 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 00:14:52,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 00:14:52,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-12-09 00:14:52,913 INFO L87 Difference]: Start difference. First operand 879 states and 1006 transitions. Second operand 8 states. [2018-12-09 00:14:53,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:14:53,059 INFO L93 Difference]: Finished difference Result 1475 states and 1712 transitions. [2018-12-09 00:14:53,059 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 00:14:53,060 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 178 [2018-12-09 00:14:53,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:14:53,060 INFO L225 Difference]: With dead ends: 1475 [2018-12-09 00:14:53,060 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 00:14:53,062 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 341 SyntacticMatches, 5 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-12-09 00:14:53,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 00:14:53,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 00:14:53,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 00:14:53,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 00:14:53,063 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 178 [2018-12-09 00:14:53,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:14:53,063 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 00:14:53,063 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 00:14:53,063 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 00:14:53,063 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 00:14:53,066 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 00:14:53,153 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:14:53,167 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:14:53,255 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:14:53,298 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 00:14:53,588 WARN L180 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 30 [2018-12-09 00:14:54,548 WARN L180 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 33 [2018-12-09 00:14:55,032 INFO L451 ceAbstractionStarter]: At program point select_helpersFINAL(lines 391 397) the Hoare annotation is: true [2018-12-09 00:14:55,032 INFO L448 ceAbstractionStarter]: For program point select_helpersEXIT(lines 391 397) no Hoare annotation was computed. [2018-12-09 00:14:55,032 INFO L448 ceAbstractionStarter]: For program point valid_productEXIT(lines 398 406) no Hoare annotation was computed. [2018-12-09 00:14:55,032 INFO L451 ceAbstractionStarter]: At program point valid_productENTRY(lines 398 406) the Hoare annotation is: true [2018-12-09 00:14:55,032 INFO L448 ceAbstractionStarter]: For program point valid_productFINAL(lines 398 406) no Hoare annotation was computed. [2018-12-09 00:14:55,032 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 846 868) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (not (= ~systemActive~0 0)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (= |old(~systemActive~0)| 0) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-09 00:14:55,032 INFO L444 ceAbstractionStarter]: At program point L858(line 858) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~systemActive~0)| 0) (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (not (= ~systemActive~0 0)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (= main_~tmp~10 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-09 00:14:55,032 INFO L444 ceAbstractionStarter]: At program point L858-1(line 858) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~systemActive~0)| 0) (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (not (= ~systemActive~0 0)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (= main_~tmp~10 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-09 00:14:55,032 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 846 868) no Hoare annotation was computed. [2018-12-09 00:14:55,032 INFO L448 ceAbstractionStarter]: For program point L856(lines 856 863) no Hoare annotation was computed. [2018-12-09 00:14:55,033 INFO L448 ceAbstractionStarter]: For program point L856-1(lines 856 863) no Hoare annotation was computed. [2018-12-09 00:14:55,033 INFO L448 ceAbstractionStarter]: For program point L854(line 854) no Hoare annotation was computed. [2018-12-09 00:14:55,033 INFO L444 ceAbstractionStarter]: At program point L853(line 853) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (not (= ~systemActive~0 0)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (= |old(~systemActive~0)| 0) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-09 00:14:55,033 INFO L444 ceAbstractionStarter]: At program point L852(line 852) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (not (= ~systemActive~0 0)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (= |old(~systemActive~0)| 0) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-09 00:14:55,033 INFO L444 ceAbstractionStarter]: At program point L852-1(line 852) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (not (= ~systemActive~0 0)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (= |old(~systemActive~0)| 0) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-09 00:14:55,033 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 846 868) no Hoare annotation was computed. [2018-12-09 00:14:55,033 INFO L444 ceAbstractionStarter]: At program point L127(line 127) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (= ~systemActive~0 0)) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or (< ~methaneLevelCritical~0 1) .cse0 .cse1) (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse1 .cse2))) [2018-12-09 00:14:55,033 INFO L444 ceAbstractionStarter]: At program point L123(line 123) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (= ~systemActive~0 0)) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or (< ~methaneLevelCritical~0 1) .cse0 .cse1) (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse1 .cse2))) [2018-12-09 00:14:55,033 INFO L448 ceAbstractionStarter]: For program point L121(lines 121 129) no Hoare annotation was computed. [2018-12-09 00:14:55,033 INFO L444 ceAbstractionStarter]: At program point L119(line 119) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (= ~systemActive~0 0)) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or (< ~methaneLevelCritical~0 1) .cse0 .cse1) (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse1 .cse2))) [2018-12-09 00:14:55,033 INFO L448 ceAbstractionStarter]: For program point L119-1(line 119) no Hoare annotation was computed. [2018-12-09 00:14:55,033 INFO L448 ceAbstractionStarter]: For program point L117(lines 117 134) no Hoare annotation was computed. [2018-12-09 00:14:55,033 INFO L444 ceAbstractionStarter]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 113 137) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (= ~systemActive~0 0))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or .cse0 (< ~methaneLevelCritical~0 1) (not (= 0 |old(~pumpRunning~0)|)) .cse1))) [2018-12-09 00:14:55,033 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 113 137) no Hoare annotation was computed. [2018-12-09 00:14:55,033 INFO L444 ceAbstractionStarter]: At program point L132(line 132) the Hoare annotation is: (let ((.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (= ~systemActive~0 0))) (and (or .cse0 .cse1 .cse2) (or .cse1 (= |old(~pumpRunning~0)| 0) .cse2) (or .cse0 (< ~methaneLevelCritical~0 1) (not (= 0 |old(~pumpRunning~0)|)) .cse1))) [2018-12-09 00:14:55,033 INFO L448 ceAbstractionStarter]: For program point L132-1(lines 113 137) no Hoare annotation was computed. [2018-12-09 00:14:55,034 INFO L448 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 208 216) no Hoare annotation was computed. [2018-12-09 00:14:55,034 INFO L451 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 208 216) the Hoare annotation is: true [2018-12-09 00:14:55,034 INFO L448 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 208 216) no Hoare annotation was computed. [2018-12-09 00:14:55,034 INFO L451 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 272 290) the Hoare annotation is: true [2018-12-09 00:14:55,034 INFO L448 ceAbstractionStarter]: For program point L281(lines 281 285) no Hoare annotation was computed. [2018-12-09 00:14:55,034 INFO L451 ceAbstractionStarter]: At program point L279(line 279) the Hoare annotation is: true [2018-12-09 00:14:55,034 INFO L448 ceAbstractionStarter]: For program point L281-2(lines 281 285) no Hoare annotation was computed. [2018-12-09 00:14:55,034 INFO L448 ceAbstractionStarter]: For program point L279-1(line 279) no Hoare annotation was computed. [2018-12-09 00:14:55,034 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 272 290) no Hoare annotation was computed. [2018-12-09 00:14:55,034 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 272 290) no Hoare annotation was computed. [2018-12-09 00:14:55,034 INFO L448 ceAbstractionStarter]: For program point select_featuresEXIT(lines 384 390) no Hoare annotation was computed. [2018-12-09 00:14:55,034 INFO L451 ceAbstractionStarter]: At program point select_featuresFINAL(lines 384 390) the Hoare annotation is: true [2018-12-09 00:14:55,034 INFO L444 ceAbstractionStarter]: At program point runTestENTRY(lines 836 845) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (not (= ~systemActive~0 0)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (= |old(~systemActive~0)| 0) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-09 00:14:55,034 INFO L448 ceAbstractionStarter]: For program point runTestEXIT(lines 836 845) no Hoare annotation was computed. [2018-12-09 00:14:55,034 INFO L448 ceAbstractionStarter]: For program point runTestFINAL(lines 836 845) no Hoare annotation was computed. [2018-12-09 00:14:55,034 INFO L451 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 197 207) the Hoare annotation is: true [2018-12-09 00:14:55,034 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 197 207) no Hoare annotation was computed. [2018-12-09 00:14:55,034 INFO L451 ceAbstractionStarter]: At program point L202(line 202) the Hoare annotation is: true [2018-12-09 00:14:55,034 INFO L448 ceAbstractionStarter]: For program point L202-1(line 202) no Hoare annotation was computed. [2018-12-09 00:14:55,034 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 197 207) no Hoare annotation was computed. [2018-12-09 00:14:55,034 INFO L444 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 189 196) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (= ~systemActive~0 0)) (.cse2 (= |old(~pumpRunning~0)| 0))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2) (or .cse1 .cse0 .cse2 (not (= ~methaneLevelCritical~0 0))))) [2018-12-09 00:14:55,034 INFO L448 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 189 196) no Hoare annotation was computed. [2018-12-09 00:14:55,035 INFO L448 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 189 196) no Hoare annotation was computed. [2018-12-09 00:14:55,035 INFO L448 ceAbstractionStarter]: For program point L954(lines 954 960) no Hoare annotation was computed. [2018-12-09 00:14:55,035 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 950 963) no Hoare annotation was computed. [2018-12-09 00:14:55,035 INFO L451 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 950 963) the Hoare annotation is: true [2018-12-09 00:14:55,035 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 950 963) no Hoare annotation was computed. [2018-12-09 00:14:55,035 INFO L444 ceAbstractionStarter]: At program point L158(line 158) the Hoare annotation is: (let ((.cse3 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (< ~methaneLevelCritical~0 1)) (.cse1 (= ~systemActive~0 0)) (.cse2 (= |old(~pumpRunning~0)| 0)) (.cse4 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse1 .cse4) (or .cse3 .cse0 .cse1) (or .cse1 .cse2 .cse4))) [2018-12-09 00:14:55,035 INFO L448 ceAbstractionStarter]: For program point L158-1(lines 139 163) no Hoare annotation was computed. [2018-12-09 00:14:55,035 INFO L444 ceAbstractionStarter]: At program point L153(line 153) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse0 (= ~systemActive~0 0))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse0 .cse1) (or (< ~methaneLevelCritical~0 1) .cse0))) [2018-12-09 00:14:55,035 INFO L448 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 139 163) no Hoare annotation was computed. [2018-12-09 00:14:55,035 INFO L444 ceAbstractionStarter]: At program point L149(line 149) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse3 (< ~methaneLevelCritical~0 1)) (.cse4 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (= ~systemActive~0 0))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse0 .cse1) (or .cse4 .cse1 .cse2) (or .cse3 (and (<= ~methaneLevelCritical~0 processEnvironment_~tmp~2) .cse4) .cse1))) [2018-12-09 00:14:55,035 INFO L444 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 139 163) the Hoare annotation is: (let ((.cse1 (= ~systemActive~0 0)) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or (< ~methaneLevelCritical~0 1) .cse1 .cse0))) [2018-12-09 00:14:55,035 INFO L448 ceAbstractionStarter]: For program point L147(lines 147 155) no Hoare annotation was computed. [2018-12-09 00:14:55,035 INFO L444 ceAbstractionStarter]: At program point L145(line 145) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse3 (< ~methaneLevelCritical~0 1)) (.cse1 (= ~systemActive~0 0)) (.cse4 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse0 .cse1) (or .cse4 .cse1 .cse2) (or .cse3 .cse1 .cse4))) [2018-12-09 00:14:55,035 INFO L448 ceAbstractionStarter]: For program point L145-1(line 145) no Hoare annotation was computed. [2018-12-09 00:14:55,035 INFO L448 ceAbstractionStarter]: For program point L143(lines 143 160) no Hoare annotation was computed. [2018-12-09 00:14:55,035 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 79 85) no Hoare annotation was computed. [2018-12-09 00:14:55,035 INFO L451 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 79 85) the Hoare annotation is: true [2018-12-09 00:14:55,035 INFO L444 ceAbstractionStarter]: At program point testENTRY(lines 303 368) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (not (= ~systemActive~0 0)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (= |old(~systemActive~0)| 0) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-09 00:14:55,035 INFO L448 ceAbstractionStarter]: For program point L351(lines 351 355) no Hoare annotation was computed. [2018-12-09 00:14:55,036 INFO L444 ceAbstractionStarter]: At program point L351-2(lines 343 356) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 0))) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~systemActive~0)| 0) (and .cse0 (<= 1 ~methaneLevelCritical~0) .cse1) (and (= 0 ~methaneLevelCritical~0) .cse0 .cse1) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-12-09 00:14:55,036 INFO L448 ceAbstractionStarter]: For program point L314(lines 313 360) no Hoare annotation was computed. [2018-12-09 00:14:55,036 INFO L444 ceAbstractionStarter]: At program point L345(line 345) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 0))) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~systemActive~0)| 0) (and .cse0 (<= 1 ~methaneLevelCritical~0) .cse1) (and (= 0 ~methaneLevelCritical~0) .cse0 .cse1) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-12-09 00:14:55,036 INFO L448 ceAbstractionStarter]: For program point L343(lines 343 356) no Hoare annotation was computed. [2018-12-09 00:14:55,036 INFO L448 ceAbstractionStarter]: For program point testFINAL(lines 303 368) no Hoare annotation was computed. [2018-12-09 00:14:55,036 INFO L444 ceAbstractionStarter]: At program point L335(line 335) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 0))) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~systemActive~0)| 0) (and (= 0 ~methaneLevelCritical~0) .cse0 .cse1) (and (= 0 ~pumpRunning~0) .cse0 (<= 1 ~methaneLevelCritical~0) .cse1) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-12-09 00:14:55,036 INFO L448 ceAbstractionStarter]: For program point L333(lines 333 339) no Hoare annotation was computed. [2018-12-09 00:14:55,036 INFO L448 ceAbstractionStarter]: For program point L333-1(lines 333 339) no Hoare annotation was computed. [2018-12-09 00:14:55,036 INFO L444 ceAbstractionStarter]: At program point L358(lines 313 360) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 0))) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~systemActive~0)| 0) (and (= 0 ~methaneLevelCritical~0) .cse0 .cse1) (and (= 0 ~pumpRunning~0) .cse0 (<= 1 ~methaneLevelCritical~0) .cse1) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-12-09 00:14:55,036 INFO L444 ceAbstractionStarter]: At program point L325(line 325) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 0))) (.cse1 (= test_~splverifierCounter~0 0))) (or (and (and (= 0 ~pumpRunning~0) .cse0 .cse1) (<= 1 ~methaneLevelCritical~0)) (not (= 0 |old(~pumpRunning~0)|)) (= |old(~systemActive~0)| 0) (and (= 0 ~methaneLevelCritical~0) .cse0 .cse1) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-12-09 00:14:55,036 INFO L448 ceAbstractionStarter]: For program point L323(lines 323 329) no Hoare annotation was computed. [2018-12-09 00:14:55,036 INFO L448 ceAbstractionStarter]: For program point L323-1(lines 323 329) no Hoare annotation was computed. [2018-12-09 00:14:55,036 INFO L448 ceAbstractionStarter]: For program point L315(lines 315 319) no Hoare annotation was computed. [2018-12-09 00:14:55,036 INFO L444 ceAbstractionStarter]: At program point L361(lines 312 362) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~systemActive~0)| 0) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-09 00:14:55,036 INFO L448 ceAbstractionStarter]: For program point testEXIT(lines 303 368) no Hoare annotation was computed. [2018-12-09 00:14:55,036 INFO L444 ceAbstractionStarter]: At program point activatePump__wrappee__lowWaterSensorENTRY(lines 164 171) the Hoare annotation is: (or (= ~waterLevel~0 1) (not (= 0 |old(~pumpRunning~0)|)) (= ~systemActive~0 0) (= |old(~pumpRunning~0)| ~pumpRunning~0) (not (= ~methaneLevelCritical~0 0))) [2018-12-09 00:14:55,036 INFO L448 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorFINAL(lines 164 171) no Hoare annotation was computed. [2018-12-09 00:14:55,036 INFO L448 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 164 171) no Hoare annotation was computed. [2018-12-09 00:14:55,036 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 964 972) no Hoare annotation was computed. [2018-12-09 00:14:55,036 INFO L451 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 964 972) the Hoare annotation is: true [2018-12-09 00:14:55,037 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 964 972) no Hoare annotation was computed. [2018-12-09 00:14:55,037 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 00:14:55,037 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= |old(~pumpRunning~0)| ~pumpRunning~0) [2018-12-09 00:14:55,037 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 00:14:55,037 INFO L444 ceAbstractionStarter]: At program point L177(line 177) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 1)) (.cse3 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= ~systemActive~0 0))) (and (or .cse0 .cse1 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))) (or (< ~methaneLevelCritical~0 1) .cse0 .cse3 .cse1 .cse2))) [2018-12-09 00:14:55,037 INFO L448 ceAbstractionStarter]: For program point L177-1(line 177) no Hoare annotation was computed. [2018-12-09 00:14:55,037 INFO L448 ceAbstractionStarter]: For program point activatePumpEXIT(lines 172 188) no Hoare annotation was computed. [2018-12-09 00:14:55,037 INFO L444 ceAbstractionStarter]: At program point activatePumpENTRY(lines 172 188) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 1)) (.cse3 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= ~systemActive~0 0))) (and (or .cse0 .cse1 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))) (or (< ~methaneLevelCritical~0 1) .cse0 .cse3 .cse1 .cse2))) [2018-12-09 00:14:55,037 INFO L444 ceAbstractionStarter]: At program point L183(line 183) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 1)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= ~systemActive~0 0))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0) (not (= ~methaneLevelCritical~0 0))))) [2018-12-09 00:14:55,037 INFO L448 ceAbstractionStarter]: For program point L183-1(lines 172 188) no Hoare annotation was computed. [2018-12-09 00:14:55,037 INFO L448 ceAbstractionStarter]: For program point L179(lines 179 185) no Hoare annotation was computed. [2018-12-09 00:14:55,037 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 253 271) no Hoare annotation was computed. [2018-12-09 00:14:55,037 INFO L448 ceAbstractionStarter]: For program point L262(lines 262 266) no Hoare annotation was computed. [2018-12-09 00:14:55,037 INFO L451 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 253 271) the Hoare annotation is: true [2018-12-09 00:14:55,037 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 253 271) no Hoare annotation was computed. [2018-12-09 00:14:55,037 INFO L451 ceAbstractionStarter]: At program point L260(line 260) the Hoare annotation is: true [2018-12-09 00:14:55,037 INFO L448 ceAbstractionStarter]: For program point L262-2(lines 262 266) no Hoare annotation was computed. [2018-12-09 00:14:55,037 INFO L448 ceAbstractionStarter]: For program point L260-1(line 260) no Hoare annotation was computed. [2018-12-09 00:14:55,037 INFO L444 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 897 908) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 0))) (and (or (<= 1 ~methaneLevelCritical~0) (< |old(~methaneLevelCritical~0)| 1) (not (= 0 ~pumpRunning~0)) .cse0) (or (= 0 ~methaneLevelCritical~0) .cse0 (not (= |old(~methaneLevelCritical~0)| 0))))) [2018-12-09 00:14:55,037 INFO L448 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 897 908) no Hoare annotation was computed. [2018-12-09 00:14:55,037 INFO L448 ceAbstractionStarter]: For program point L901-1(lines 897 908) no Hoare annotation was computed. [2018-12-09 00:14:55,038 INFO L451 ceAbstractionStarter]: At program point L800(lines 775 804) the Hoare annotation is: true [2018-12-09 00:14:55,038 INFO L448 ceAbstractionStarter]: For program point cleanupEXIT(lines 775 804) no Hoare annotation was computed. [2018-12-09 00:14:55,038 INFO L451 ceAbstractionStarter]: At program point cleanupENTRY(lines 775 804) the Hoare annotation is: true [2018-12-09 00:14:55,038 INFO L448 ceAbstractionStarter]: For program point L796(line 796) no Hoare annotation was computed. [2018-12-09 00:14:55,038 INFO L448 ceAbstractionStarter]: For program point L789(lines 789 793) no Hoare annotation was computed. [2018-12-09 00:14:55,038 INFO L451 ceAbstractionStarter]: At program point L789-1(lines 789 793) the Hoare annotation is: true [2018-12-09 00:14:55,038 INFO L448 ceAbstractionStarter]: For program point L786(line 786) no Hoare annotation was computed. [2018-12-09 00:14:55,038 INFO L451 ceAbstractionStarter]: At program point L785-2(lines 785 799) the Hoare annotation is: true [2018-12-09 00:14:55,038 INFO L451 ceAbstractionStarter]: At program point L781(line 781) the Hoare annotation is: true [2018-12-09 00:14:55,038 INFO L448 ceAbstractionStarter]: For program point L781-1(line 781) no Hoare annotation was computed. [2018-12-09 00:14:55,038 INFO L451 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 909 917) the Hoare annotation is: true [2018-12-09 00:14:55,038 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 909 917) no Hoare annotation was computed. [2018-12-09 00:14:55,038 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 909 917) no Hoare annotation was computed. [2018-12-09 00:14:55,038 INFO L444 ceAbstractionStarter]: At program point L61(line 61) the Hoare annotation is: (let ((.cse0 (< ~methaneLevelCritical~0 1)) (.cse1 (= ~systemActive~0 0)) (.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 (not (= 0 |old(~pumpRunning~0)|)) .cse1) (or (and (not (= |old(~pumpRunning~0)| 0)) .cse2) .cse1 (not (= ~methaneLevelCritical~0 0))) (or .cse0 .cse1 .cse2))) [2018-12-09 00:14:55,038 INFO L448 ceAbstractionStarter]: For program point L59(lines 58 77) no Hoare annotation was computed. [2018-12-09 00:14:55,038 INFO L444 ceAbstractionStarter]: At program point timeShiftENTRY(lines 55 78) the Hoare annotation is: (let ((.cse7 (= |old(~waterLevel~0)| 1))) (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse5 (= 1 ~waterLevel~0)) (.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse6 (not .cse7)) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse3 (< ~methaneLevelCritical~0 1)) (.cse1 (= ~systemActive~0 0)) (.cse8 (not (= ~waterLevel~0 1)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse1 .cse5 .cse6) (or .cse3 .cse1 .cse0) (or .cse5 .cse4 .cse1 .cse6 .cse2) (or .cse7 .cse8 .cse1 .cse2) (or .cse3 .cse7 .cse1 .cse8)))) [2018-12-09 00:14:55,038 INFO L448 ceAbstractionStarter]: For program point timeShiftEXIT(lines 55 78) no Hoare annotation was computed. [2018-12-09 00:14:55,038 INFO L448 ceAbstractionStarter]: For program point timeShiftFINAL(lines 55 78) no Hoare annotation was computed. [2018-12-09 00:14:55,038 INFO L444 ceAbstractionStarter]: At program point L68(line 68) the Hoare annotation is: (let ((.cse7 (= |old(~waterLevel~0)| 1))) (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse5 (= 1 ~waterLevel~0)) (.cse6 (not .cse7)) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse3 (< ~methaneLevelCritical~0 1)) (.cse8 (not (= ~waterLevel~0 1))) (.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (= ~systemActive~0 0))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse1 .cse0) (or .cse3 .cse4 .cse1 .cse5 .cse6) (or .cse5 .cse4 .cse1 .cse6 .cse2) (or .cse7 (not (= |old(~pumpRunning~0)| 0)) .cse1 .cse8 .cse2) (or .cse3 .cse7 .cse8 .cse4 .cse1)))) [2018-12-09 00:14:55,039 INFO L444 ceAbstractionStarter]: At program point L66(lines 66 72) the Hoare annotation is: (let ((.cse1 (= ~systemActive~0 0)) (.cse9 (not (= ~waterLevel~0 1))) (.cse0 (= |old(~waterLevel~0)| 1))) (let ((.cse7 (= 1 ~waterLevel~0)) (.cse8 (not .cse0)) (.cse2 (and (not .cse1) .cse9)) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse4 (= 0 ~pumpRunning~0)) (.cse5 (< ~methaneLevelCritical~0 1)) (.cse6 (not (= 0 |old(~pumpRunning~0)|)))) (and (or .cse0 (not (= |old(~pumpRunning~0)| 0)) .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse1) (or .cse5 .cse6 .cse1 .cse7 .cse8) (or .cse7 .cse6 .cse1 .cse8 .cse3) (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse0 .cse9 .cse6 .cse1)))) [2018-12-09 00:14:55,039 INFO L451 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 873 884) the Hoare annotation is: true [2018-12-09 00:14:55,039 INFO L448 ceAbstractionStarter]: For program point L877-1(lines 873 884) no Hoare annotation was computed. [2018-12-09 00:14:55,039 INFO L448 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 873 884) no Hoare annotation was computed. [2018-12-09 00:14:55,039 INFO L448 ceAbstractionStarter]: For program point setupEXIT(lines 829 835) no Hoare annotation was computed. [2018-12-09 00:14:55,039 INFO L451 ceAbstractionStarter]: At program point setupFINAL(lines 829 835) the Hoare annotation is: true [2018-12-09 00:14:55,039 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 00:14:55,039 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= 1 ~waterLevel~0) (not (= ~systemActive~0 0))) [2018-12-09 00:14:55,039 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 00:14:55,039 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 00:14:55,039 INFO L448 ceAbstractionStarter]: For program point startSystemEXIT(lines 291 298) no Hoare annotation was computed. [2018-12-09 00:14:55,039 INFO L444 ceAbstractionStarter]: At program point startSystemENTRY(lines 291 298) the Hoare annotation is: (let ((.cse1 (not (= ~systemActive~0 0))) (.cse0 (= |old(~systemActive~0)| 0))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1) (or .cse1 .cse0 (not (= ~methaneLevelCritical~0 0))))) [2018-12-09 00:14:55,039 INFO L448 ceAbstractionStarter]: For program point startSystemFINAL(lines 291 298) no Hoare annotation was computed. [2018-12-09 00:14:55,039 INFO L444 ceAbstractionStarter]: At program point L97(line 97) the Hoare annotation is: (let ((.cse0 (not (= ~waterLevel~0 1))) (.cse2 (= ~systemActive~0 0)) (.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse3 (not (= ~methaneLevelCritical~0 0)))) (and (or (< ~methaneLevelCritical~0 1) (and .cse0 .cse1) (not (= 0 |old(~pumpRunning~0)|)) .cse2) (or .cse2 (= |old(~pumpRunning~0)| 0) .cse3) (or .cse2 .cse0 .cse3) (or .cse2 .cse1 .cse3))) [2018-12-09 00:14:55,039 INFO L444 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 87 111) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (= ~systemActive~0 0))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or .cse0 (< ~methaneLevelCritical~0 1) (not (= 0 |old(~pumpRunning~0)|)) .cse1))) [2018-12-09 00:14:55,039 INFO L448 ceAbstractionStarter]: For program point L95(lines 95 103) no Hoare annotation was computed. [2018-12-09 00:14:55,039 INFO L444 ceAbstractionStarter]: At program point L93(line 93) the Hoare annotation is: (let ((.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (= ~systemActive~0 0))) (and (or .cse0 .cse1 .cse2) (or .cse1 (= |old(~pumpRunning~0)| 0) .cse2) (or .cse0 (< ~methaneLevelCritical~0 1) (not (= 0 |old(~pumpRunning~0)|)) .cse1))) [2018-12-09 00:14:55,039 INFO L448 ceAbstractionStarter]: For program point L93-1(line 93) no Hoare annotation was computed. [2018-12-09 00:14:55,039 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 87 111) no Hoare annotation was computed. [2018-12-09 00:14:55,039 INFO L448 ceAbstractionStarter]: For program point L91(lines 91 108) no Hoare annotation was computed. [2018-12-09 00:14:55,040 INFO L444 ceAbstractionStarter]: At program point L106(line 106) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (= ~systemActive~0 0)) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or (< ~methaneLevelCritical~0 1) .cse0 .cse1) (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse1 .cse2))) [2018-12-09 00:14:55,040 INFO L448 ceAbstractionStarter]: For program point L106-1(lines 87 111) no Hoare annotation was computed. [2018-12-09 00:14:55,040 INFO L444 ceAbstractionStarter]: At program point L101(line 101) the Hoare annotation is: (let ((.cse1 (= ~systemActive~0 0)) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse0 (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)))) (and (or (< ~methaneLevelCritical~0 1) (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or .cse1 (= |old(~pumpRunning~0)| 0) .cse2) (or .cse1 .cse2 .cse0))) [2018-12-09 00:14:55,040 INFO L448 ceAbstractionStarter]: For program point waterRiseEXIT(lines 885 896) no Hoare annotation was computed. [2018-12-09 00:14:55,040 INFO L448 ceAbstractionStarter]: For program point L889-1(lines 885 896) no Hoare annotation was computed. [2018-12-09 00:14:55,040 INFO L444 ceAbstractionStarter]: At program point waterRiseENTRY(lines 885 896) the Hoare annotation is: (let ((.cse2 (= 1 ~waterLevel~0)) (.cse0 (not (= 0 ~pumpRunning~0))) (.cse1 (= ~systemActive~0 0)) (.cse3 (not (= |old(~waterLevel~0)| 1)))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2 .cse3) (or .cse2 .cse0 .cse1 .cse3 (not (= ~methaneLevelCritical~0 0))))) [2018-12-09 00:14:55,040 INFO L448 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 1001 1008) no Hoare annotation was computed. [2018-12-09 00:14:55,040 INFO L448 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 1005) no Hoare annotation was computed. [2018-12-09 00:14:55,040 INFO L451 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 1001 1008) the Hoare annotation is: true [2018-12-09 00:14:55,040 INFO L448 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 1001 1008) no Hoare annotation was computed. [2018-12-09 00:14:55,040 INFO L444 ceAbstractionStarter]: At program point L989(line 989) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 0))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0))) (or (< ~methaneLevelCritical~0 1) (not (= 0 ~pumpRunning~0)) .cse0))) [2018-12-09 00:14:55,040 INFO L451 ceAbstractionStarter]: At program point __utac_acc__Specification1_spec__1ENTRY(lines 975 999) the Hoare annotation is: true [2018-12-09 00:14:55,040 INFO L448 ceAbstractionStarter]: For program point L987(lines 987 993) no Hoare annotation was computed. [2018-12-09 00:14:55,040 INFO L444 ceAbstractionStarter]: At program point L985(line 985) the Hoare annotation is: (or (= ~systemActive~0 0) (not (= ~methaneLevelCritical~0 0))) [2018-12-09 00:14:55,040 INFO L448 ceAbstractionStarter]: For program point L985-1(line 985) no Hoare annotation was computed. [2018-12-09 00:14:55,040 INFO L448 ceAbstractionStarter]: For program point __utac_acc__Specification1_spec__1EXIT(lines 975 999) no Hoare annotation was computed. [2018-12-09 00:14:55,040 INFO L448 ceAbstractionStarter]: For program point L983(lines 983 996) no Hoare annotation was computed. [2018-12-09 00:14:55,040 INFO L448 ceAbstractionStarter]: For program point L983-1(lines 975 999) no Hoare annotation was computed. [2018-12-09 00:14:55,040 INFO L451 ceAbstractionStarter]: At program point L981(line 981) the Hoare annotation is: true [2018-12-09 00:14:55,040 INFO L448 ceAbstractionStarter]: For program point L981-1(line 981) no Hoare annotation was computed. [2018-12-09 00:14:55,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 12:14:55 BoogieIcfgContainer [2018-12-09 00:14:55,048 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 00:14:55,048 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 00:14:55,048 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 00:14:55,048 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 00:14:55,048 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:14:46" (3/4) ... [2018-12-09 00:14:55,051 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 00:14:55,054 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-12-09 00:14:55,054 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-12-09 00:14:55,054 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 00:14:55,054 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2018-12-09 00:14:55,054 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-12-09 00:14:55,055 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterLevel [2018-12-09 00:14:55,055 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-12-09 00:14:55,055 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-12-09 00:14:55,055 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2018-12-09 00:14:55,055 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-12-09 00:14:55,055 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-12-09 00:14:55,055 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-12-09 00:14:55,055 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-12-09 00:14:55,055 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-12-09 00:14:55,055 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump__wrappee__lowWaterSensor [2018-12-09 00:14:55,055 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterSensorDry [2018-12-09 00:14:55,055 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 00:14:55,055 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-12-09 00:14:55,055 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-12-09 00:14:55,055 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-12-09 00:14:55,055 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-12-09 00:14:55,055 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2018-12-09 00:14:55,055 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-12-09 00:14:55,055 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-12-09 00:14:55,055 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-12-09 00:14:55,056 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure startSystem [2018-12-09 00:14:55,056 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2018-12-09 00:14:55,056 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-12-09 00:14:55,056 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-12-09 00:14:55,056 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification1_spec__1 [2018-12-09 00:14:55,060 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 47 nodes and edges [2018-12-09 00:14:55,060 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2018-12-09 00:14:55,061 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-12-09 00:14:55,061 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-09 00:14:55,061 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-09 00:14:55,061 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 00:14:55,078 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(0 == \old(pumpRunning)) || \old(systemActive) == 0) || ((0 == methaneLevelCritical && !(systemActive == 0)) && splverifierCounter == 0)) || (((0 == pumpRunning && !(systemActive == 0)) && 1 <= methaneLevelCritical) && splverifierCounter == 0)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-12-09 00:14:55,078 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(0 == \old(pumpRunning)) || \old(systemActive) == 0) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-12-09 00:14:55,100 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_4462b983-cb5d-4600-a131-66cd1cd3a45e/bin-2019/utaipan/witness.graphml [2018-12-09 00:14:55,100 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 00:14:55,101 INFO L168 Benchmark]: Toolchain (without parser) took 9097.18 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 446.7 MB). Free memory was 952.4 MB in the beginning and 1.0 GB in the end (delta: -88.2 MB). Peak memory consumption was 358.5 MB. Max. memory is 11.5 GB. [2018-12-09 00:14:55,101 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 00:14:55,101 INFO L168 Benchmark]: CACSL2BoogieTranslator took 313.37 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.7 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -138.7 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2018-12-09 00:14:55,101 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.10 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-09 00:14:55,101 INFO L168 Benchmark]: Boogie Preprocessor took 22.30 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 00:14:55,102 INFO L168 Benchmark]: RCFGBuilder took 343.79 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: 47.6 MB). Peak memory consumption was 47.6 MB. Max. memory is 11.5 GB. [2018-12-09 00:14:55,102 INFO L168 Benchmark]: TraceAbstraction took 8342.76 ms. Allocated memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: 345.0 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: -2.6 MB). Peak memory consumption was 603.4 MB. Max. memory is 11.5 GB. [2018-12-09 00:14:55,102 INFO L168 Benchmark]: Witness Printer took 52.28 ms. Allocated memory is still 1.5 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 127.0 kB). Peak memory consumption was 127.0 kB. Max. memory is 11.5 GB. [2018-12-09 00:14:55,103 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 313.37 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.7 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -138.7 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.10 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.30 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 343.79 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: 47.6 MB). Peak memory consumption was 47.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8342.76 ms. Allocated memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: 345.0 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: -2.6 MB). Peak memory consumption was 603.4 MB. Max. memory is 11.5 GB. * Witness Printer took 52.28 ms. Allocated memory is still 1.5 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 127.0 kB). Peak memory consumption was 127.0 kB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1005]: 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: 775]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 313]: Loop Invariant Derived loop invariant: ((((!(0 == \old(pumpRunning)) || \old(systemActive) == 0) || ((0 == methaneLevelCritical && !(systemActive == 0)) && splverifierCounter == 0)) || (((0 == pumpRunning && !(systemActive == 0)) && 1 <= methaneLevelCritical) && splverifierCounter == 0)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 312]: Loop Invariant Derived loop invariant: ((!(0 == \old(pumpRunning)) || \old(systemActive) == 0) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 785]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 31 procedures, 167 locations, 1 error locations. SAFE Result, 8.2s OverallTime, 11 OverallIterations, 4 TraceHistogramMax, 1.4s AutomataDifference, 0.0s DeadEndRemovalTime, 1.9s HoareAnnotationTime, HoareTripleCheckerStatistics: 2257 SDtfs, 1089 SDslu, 4695 SDs, 0 SdLazy, 1581 SolverSat, 273 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 687 GetRequests, 587 SyntacticMatches, 15 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=909occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.4s AbstIntTime, 2 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 79 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 70 LocationsWithAnnotation, 1799 PreInvPairs, 1897 NumberOfFragments, 1698 HoareAnnotationTreeSize, 1799 FomulaSimplifications, 2052 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 70 FomulaSimplificationsInter, 7476 FormulaSimplificationTreeSizeReductionInter, 1.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 1251 NumberOfCodeBlocks, 1251 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1522 ConstructedInterpolants, 0 QuantifiedInterpolants, 284285 SizeOfPredicates, 6 NumberOfNonLiveVariables, 1700 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 15 InterpolantComputations, 11 PerfectInterpolantSequences, 166/174 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...