./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product41_false-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_4eaf43a2-6059-4c0b-8138-f4d6a44a5534/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4eaf43a2-6059-4c0b-8138-f4d6a44a5534/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4eaf43a2-6059-4c0b-8138-f4d6a44a5534/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4eaf43a2-6059-4c0b-8138-f4d6a44a5534/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product41_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_4eaf43a2-6059-4c0b-8138-f4d6a44a5534/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4eaf43a2-6059-4c0b-8138-f4d6a44a5534/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 59866f864e0ec5bf7736536ea91554085144fb1d ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 11:16:03,679 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 11:16:03,680 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 11:16:03,686 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 11:16:03,686 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 11:16:03,687 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 11:16:03,687 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 11:16:03,688 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 11:16:03,689 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 11:16:03,689 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 11:16:03,689 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 11:16:03,690 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 11:16:03,690 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 11:16:03,690 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 11:16:03,691 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 11:16:03,691 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 11:16:03,692 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 11:16:03,692 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 11:16:03,693 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 11:16:03,694 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 11:16:03,694 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 11:16:03,695 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 11:16:03,696 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 11:16:03,696 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 11:16:03,696 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 11:16:03,697 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 11:16:03,697 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 11:16:03,697 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 11:16:03,698 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 11:16:03,698 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 11:16:03,698 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 11:16:03,699 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 11:16:03,699 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 11:16:03,699 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 11:16:03,699 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 11:16:03,699 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 11:16:03,700 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4eaf43a2-6059-4c0b-8138-f4d6a44a5534/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 11:16:03,706 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 11:16:03,706 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 11:16:03,707 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 11:16:03,707 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 11:16:03,707 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 11:16:03,707 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 11:16:03,707 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 11:16:03,707 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 11:16:03,708 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 11:16:03,708 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 11:16:03,708 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 11:16:03,708 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 11:16:03,708 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 11:16:03,708 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 11:16:03,708 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 11:16:03,708 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 11:16:03,708 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 11:16:03,709 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 11:16:03,709 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 11:16:03,709 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 11:16:03,709 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 11:16:03,709 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 11:16:03,709 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 11:16:03,709 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 11:16:03,709 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 11:16:03,709 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 11:16:03,709 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 11:16:03,709 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 11:16:03,710 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 11:16:03,710 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 11:16:03,710 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 11:16:03,710 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 11:16:03,710 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 11:16:03,710 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 11:16:03,710 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 11:16:03,710 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 11:16:03,710 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_4eaf43a2-6059-4c0b-8138-f4d6a44a5534/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 -> 59866f864e0ec5bf7736536ea91554085144fb1d [2018-12-09 11:16:03,728 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 11:16:03,736 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 11:16:03,739 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 11:16:03,740 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 11:16:03,740 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 11:16:03,740 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4eaf43a2-6059-4c0b-8138-f4d6a44a5534/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product41_false-unreach-call_false-termination.cil.c [2018-12-09 11:16:03,785 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4eaf43a2-6059-4c0b-8138-f4d6a44a5534/bin-2019/utaipan/data/369b53c82/e28e0447db9648a193316f3ad7e70f6a/FLAGffb8d419d [2018-12-09 11:16:04,101 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 11:16:04,102 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4eaf43a2-6059-4c0b-8138-f4d6a44a5534/sv-benchmarks/c/product-lines/minepump_spec4_product41_false-unreach-call_false-termination.cil.c [2018-12-09 11:16:04,107 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4eaf43a2-6059-4c0b-8138-f4d6a44a5534/bin-2019/utaipan/data/369b53c82/e28e0447db9648a193316f3ad7e70f6a/FLAGffb8d419d [2018-12-09 11:16:04,510 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4eaf43a2-6059-4c0b-8138-f4d6a44a5534/bin-2019/utaipan/data/369b53c82/e28e0447db9648a193316f3ad7e70f6a [2018-12-09 11:16:04,512 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 11:16:04,513 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 11:16:04,514 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 11:16:04,514 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 11:16:04,516 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 11:16:04,517 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 11:16:04" (1/1) ... [2018-12-09 11:16:04,519 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39aa96be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:16:04, skipping insertion in model container [2018-12-09 11:16:04,519 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 11:16:04" (1/1) ... [2018-12-09 11:16:04,525 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 11:16:04,550 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 11:16:04,705 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 11:16:04,712 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 11:16:04,782 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 11:16:04,797 INFO L195 MainTranslator]: Completed translation [2018-12-09 11:16:04,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:16:04 WrapperNode [2018-12-09 11:16:04,797 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 11:16:04,798 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 11:16:04,798 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 11:16:04,798 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 11:16:04,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:16:04" (1/1) ... [2018-12-09 11:16:04,811 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:16:04" (1/1) ... [2018-12-09 11:16:04,817 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 11:16:04,817 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 11:16:04,817 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 11:16:04,817 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 11:16:04,823 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:16:04" (1/1) ... [2018-12-09 11:16:04,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:16:04" (1/1) ... [2018-12-09 11:16:04,825 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:16:04" (1/1) ... [2018-12-09 11:16:04,825 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:16:04" (1/1) ... [2018-12-09 11:16:04,831 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:16:04" (1/1) ... [2018-12-09 11:16:04,834 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:16:04" (1/1) ... [2018-12-09 11:16:04,836 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:16:04" (1/1) ... [2018-12-09 11:16:04,837 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 11:16:04,838 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 11:16:04,838 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 11:16:04,838 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 11:16:04,838 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:16:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4eaf43a2-6059-4c0b-8138-f4d6a44a5534/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 11:16:04,869 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-09 11:16:04,869 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-09 11:16:04,869 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2018-12-09 11:16:04,869 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2018-12-09 11:16:04,870 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 11:16:04,870 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 11:16:04,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 11:16:04,870 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-09 11:16:04,870 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-09 11:16:04,870 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-09 11:16:04,870 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-09 11:16:04,870 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-09 11:16:04,870 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-09 11:16:04,870 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-09 11:16:04,870 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-09 11:16:04,870 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-09 11:16:04,870 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-09 11:16:04,870 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-09 11:16:04,870 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-09 11:16:04,871 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-09 11:16:04,871 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-09 11:16:04,871 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-12-09 11:16:04,871 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-12-09 11:16:04,871 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-09 11:16:04,871 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-09 11:16:04,871 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-09 11:16:04,871 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-09 11:16:04,871 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-09 11:16:04,871 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-09 11:16:04,871 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-09 11:16:04,871 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-09 11:16:04,871 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-09 11:16:04,871 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-09 11:16:04,871 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-09 11:16:04,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-09 11:16:04,872 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-09 11:16:04,872 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-09 11:16:04,872 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-09 11:16:04,872 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-09 11:16:04,872 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-09 11:16:04,872 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-09 11:16:04,872 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-12-09 11:16:04,872 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-12-09 11:16:04,872 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2018-12-09 11:16:04,872 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2018-12-09 11:16:04,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-09 11:16:04,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 11:16:04,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 11:16:04,872 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-09 11:16:04,872 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-09 11:16:04,872 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-09 11:16:04,873 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-09 11:16:04,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 11:16:04,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 11:16:05,155 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 11:16:05,155 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-09 11:16:05,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 11:16:05 BoogieIcfgContainer [2018-12-09 11:16:05,156 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 11:16:05,156 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 11:16:05,156 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 11:16:05,158 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 11:16:05,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 11:16:04" (1/3) ... [2018-12-09 11:16:05,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ae0acc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 11:16:05, skipping insertion in model container [2018-12-09 11:16:05,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:16:04" (2/3) ... [2018-12-09 11:16:05,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ae0acc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 11:16:05, skipping insertion in model container [2018-12-09 11:16:05,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 11:16:05" (3/3) ... [2018-12-09 11:16:05,160 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product41_false-unreach-call_false-termination.cil.c [2018-12-09 11:16:05,166 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 11:16:05,171 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 11:16:05,180 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 11:16:05,198 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 11:16:05,198 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 11:16:05,198 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 11:16:05,198 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 11:16:05,198 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 11:16:05,199 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 11:16:05,199 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 11:16:05,199 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 11:16:05,210 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states. [2018-12-09 11:16:05,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-09 11:16:05,214 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 11:16:05,214 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 11:16:05,216 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 11:16:05,219 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 11:16:05,219 INFO L82 PathProgramCache]: Analyzing trace with hash 263104783, now seen corresponding path program 1 times [2018-12-09 11:16:05,220 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 11:16:05,248 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:16:05,248 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 11:16:05,248 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:16:05,248 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 11:16:05,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:16:05,354 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 11:16:05,355 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 11:16:05,356 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 11:16:05,356 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 11:16:05,359 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 11:16:05,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 11:16:05,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 11:16:05,368 INFO L87 Difference]: Start difference. First operand 133 states. Second operand 2 states. [2018-12-09 11:16:05,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 11:16:05,389 INFO L93 Difference]: Finished difference Result 240 states and 295 transitions. [2018-12-09 11:16:05,389 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 11:16:05,390 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-09 11:16:05,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 11:16:05,396 INFO L225 Difference]: With dead ends: 240 [2018-12-09 11:16:05,396 INFO L226 Difference]: Without dead ends: 120 [2018-12-09 11:16:05,398 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 11:16:05,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2018-12-09 11:16:05,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2018-12-09 11:16:05,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2018-12-09 11:16:05,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 139 transitions. [2018-12-09 11:16:05,427 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 139 transitions. Word has length 46 [2018-12-09 11:16:05,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 11:16:05,428 INFO L480 AbstractCegarLoop]: Abstraction has 120 states and 139 transitions. [2018-12-09 11:16:05,428 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 11:16:05,428 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 139 transitions. [2018-12-09 11:16:05,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-09 11:16:05,429 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 11:16:05,430 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 11:16:05,430 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 11:16:05,430 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 11:16:05,430 INFO L82 PathProgramCache]: Analyzing trace with hash -1915497988, now seen corresponding path program 1 times [2018-12-09 11:16:05,430 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 11:16:05,431 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:16:05,431 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 11:16:05,431 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:16:05,431 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 11:16:05,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:16:05,488 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 11:16:05,488 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 11:16:05,488 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 11:16:05,488 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 11:16:05,489 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 11:16:05,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 11:16:05,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 11:16:05,489 INFO L87 Difference]: Start difference. First operand 120 states and 139 transitions. Second operand 3 states. [2018-12-09 11:16:05,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 11:16:05,504 INFO L93 Difference]: Finished difference Result 189 states and 217 transitions. [2018-12-09 11:16:05,505 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 11:16:05,505 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-09 11:16:05,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 11:16:05,506 INFO L225 Difference]: With dead ends: 189 [2018-12-09 11:16:05,507 INFO L226 Difference]: Without dead ends: 111 [2018-12-09 11:16:05,507 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 11:16:05,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2018-12-09 11:16:05,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2018-12-09 11:16:05,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2018-12-09 11:16:05,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 127 transitions. [2018-12-09 11:16:05,517 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 127 transitions. Word has length 47 [2018-12-09 11:16:05,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 11:16:05,518 INFO L480 AbstractCegarLoop]: Abstraction has 111 states and 127 transitions. [2018-12-09 11:16:05,518 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 11:16:05,518 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 127 transitions. [2018-12-09 11:16:05,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-12-09 11:16:05,519 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 11:16:05,519 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 11:16:05,519 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 11:16:05,519 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 11:16:05,519 INFO L82 PathProgramCache]: Analyzing trace with hash -344245054, now seen corresponding path program 1 times [2018-12-09 11:16:05,520 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 11:16:05,520 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:16:05,520 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 11:16:05,520 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:16:05,520 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 11:16:05,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:16:05,591 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 11:16:05,591 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 11:16:05,592 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 11:16:05,592 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 11:16:05,592 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 11:16:05,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 11:16:05,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-09 11:16:05,592 INFO L87 Difference]: Start difference. First operand 111 states and 127 transitions. Second operand 7 states. [2018-12-09 11:16:05,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 11:16:05,749 INFO L93 Difference]: Finished difference Result 198 states and 231 transitions. [2018-12-09 11:16:05,749 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 11:16:05,749 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2018-12-09 11:16:05,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 11:16:05,750 INFO L225 Difference]: With dead ends: 198 [2018-12-09 11:16:05,751 INFO L226 Difference]: Without dead ends: 111 [2018-12-09 11:16:05,751 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-09 11:16:05,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2018-12-09 11:16:05,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2018-12-09 11:16:05,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2018-12-09 11:16:05,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 126 transitions. [2018-12-09 11:16:05,760 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 126 transitions. Word has length 51 [2018-12-09 11:16:05,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 11:16:05,761 INFO L480 AbstractCegarLoop]: Abstraction has 111 states and 126 transitions. [2018-12-09 11:16:05,761 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 11:16:05,761 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 126 transitions. [2018-12-09 11:16:05,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-12-09 11:16:05,762 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 11:16:05,762 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] [2018-12-09 11:16:05,763 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 11:16:05,763 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 11:16:05,763 INFO L82 PathProgramCache]: Analyzing trace with hash -1388416387, now seen corresponding path program 1 times [2018-12-09 11:16:05,763 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 11:16:05,764 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:16:05,764 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 11:16:05,764 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:16:05,764 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 11:16:05,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:16:05,831 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 11:16:05,832 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 11:16:05,832 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-09 11:16:05,832 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 11:16:05,832 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 11:16:05,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 11:16:05,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 11:16:05,832 INFO L87 Difference]: Start difference. First operand 111 states and 126 transitions. Second operand 5 states. [2018-12-09 11:16:06,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 11:16:06,097 INFO L93 Difference]: Finished difference Result 283 states and 337 transitions. [2018-12-09 11:16:06,097 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 11:16:06,098 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 59 [2018-12-09 11:16:06,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 11:16:06,100 INFO L225 Difference]: With dead ends: 283 [2018-12-09 11:16:06,100 INFO L226 Difference]: Without dead ends: 196 [2018-12-09 11:16:06,101 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-12-09 11:16:06,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2018-12-09 11:16:06,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 178. [2018-12-09 11:16:06,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2018-12-09 11:16:06,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 203 transitions. [2018-12-09 11:16:06,120 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 203 transitions. Word has length 59 [2018-12-09 11:16:06,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 11:16:06,120 INFO L480 AbstractCegarLoop]: Abstraction has 178 states and 203 transitions. [2018-12-09 11:16:06,120 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 11:16:06,120 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 203 transitions. [2018-12-09 11:16:06,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-12-09 11:16:06,122 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 11:16:06,122 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] [2018-12-09 11:16:06,122 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 11:16:06,123 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 11:16:06,123 INFO L82 PathProgramCache]: Analyzing trace with hash -1035274394, now seen corresponding path program 1 times [2018-12-09 11:16:06,123 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 11:16:06,123 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:16:06,124 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 11:16:06,124 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:16:06,124 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 11:16:06,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:16:06,202 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 11:16:06,202 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 11:16:06,202 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-09 11:16:06,202 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 11:16:06,203 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 11:16:06,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 11:16:06,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-09 11:16:06,204 INFO L87 Difference]: Start difference. First operand 178 states and 203 transitions. Second operand 8 states. [2018-12-09 11:16:06,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 11:16:06,234 INFO L93 Difference]: Finished difference Result 339 states and 397 transitions. [2018-12-09 11:16:06,235 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 11:16:06,235 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 73 [2018-12-09 11:16:06,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 11:16:06,236 INFO L225 Difference]: With dead ends: 339 [2018-12-09 11:16:06,236 INFO L226 Difference]: Without dead ends: 185 [2018-12-09 11:16:06,237 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 11:16:06,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2018-12-09 11:16:06,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 182. [2018-12-09 11:16:06,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2018-12-09 11:16:06,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 207 transitions. [2018-12-09 11:16:06,245 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 207 transitions. Word has length 73 [2018-12-09 11:16:06,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 11:16:06,246 INFO L480 AbstractCegarLoop]: Abstraction has 182 states and 207 transitions. [2018-12-09 11:16:06,246 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 11:16:06,246 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 207 transitions. [2018-12-09 11:16:06,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-12-09 11:16:06,246 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 11:16:06,247 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] [2018-12-09 11:16:06,247 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 11:16:06,247 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 11:16:06,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1336464868, now seen corresponding path program 1 times [2018-12-09 11:16:06,247 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 11:16:06,247 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:16:06,247 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 11:16:06,247 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:16:06,248 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 11:16:06,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:16:06,320 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 11:16:06,320 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 11:16:06,320 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-09 11:16:06,320 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 11:16:06,321 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-09 11:16:06,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-09 11:16:06,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-12-09 11:16:06,321 INFO L87 Difference]: Start difference. First operand 182 states and 207 transitions. Second operand 10 states. [2018-12-09 11:16:06,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 11:16:06,608 INFO L93 Difference]: Finished difference Result 585 states and 722 transitions. [2018-12-09 11:16:06,608 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-09 11:16:06,608 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 73 [2018-12-09 11:16:06,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 11:16:06,611 INFO L225 Difference]: With dead ends: 585 [2018-12-09 11:16:06,611 INFO L226 Difference]: Without dead ends: 427 [2018-12-09 11:16:06,612 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2018-12-09 11:16:06,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2018-12-09 11:16:06,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 417. [2018-12-09 11:16:06,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2018-12-09 11:16:06,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 488 transitions. [2018-12-09 11:16:06,635 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 488 transitions. Word has length 73 [2018-12-09 11:16:06,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 11:16:06,636 INFO L480 AbstractCegarLoop]: Abstraction has 417 states and 488 transitions. [2018-12-09 11:16:06,636 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-09 11:16:06,636 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 488 transitions. [2018-12-09 11:16:06,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-12-09 11:16:06,638 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 11:16:06,638 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 11:16:06,638 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 11:16:06,638 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 11:16:06,638 INFO L82 PathProgramCache]: Analyzing trace with hash 808183, now seen corresponding path program 1 times [2018-12-09 11:16:06,638 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 11:16:06,639 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:16:06,639 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 11:16:06,639 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:16:06,639 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 11:16:06,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:16:06,700 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-09 11:16:06,701 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 11:16:06,701 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 11:16:06,701 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 129 with the following transitions: [2018-12-09 11:16:06,702 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [42], [44], [45], [46], [49], [51], [54], [61], [64], [65], [68], [70], [71], [72], [81], [85], [89], [92], [95], [97], [103], [105], [108], [123], [124], [125], [126], [127], [129], [134], [137], [138], [140], [143], [147], [148], [149], [150], [186], [189], [193], [199], [200], [201], [204], [208], [209], [215], [219], [220], [223], [224], [225], [226], [227], [229], [230], [231], [232], [233], [234], [235], [236], [237], [239], [241], [242], [243], [244], [245], [246], [249], [250], [251], [252], [255], [256], [259], [260], [261], [262], [263], [264], [269], [270], [271], [272], [273], [274], [275], [276], [277] [2018-12-09 11:16:06,725 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 11:16:06,725 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 11:16:07,063 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 11:16:07,064 INFO L272 AbstractInterpreter]: Visited 59 different actions 85 times. Merged at 5 different actions 5 times. Never widened. Performed 4032 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4032 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-12-09 11:16:07,070 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 11:16:07,070 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 11:16:07,269 INFO L227 lantSequenceWeakener]: Weakened 68 states. On average, predicates are now at 96.61% of their original sizes. [2018-12-09 11:16:07,269 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 11:16:07,373 INFO L418 sIntCurrentIteration]: We unified 127 AI predicates to 127 [2018-12-09 11:16:07,373 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 11:16:07,374 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 11:16:07,374 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [6] total 23 [2018-12-09 11:16:07,374 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 11:16:07,374 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-12-09 11:16:07,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-12-09 11:16:07,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2018-12-09 11:16:07,375 INFO L87 Difference]: Start difference. First operand 417 states and 488 transitions. Second operand 19 states. [2018-12-09 11:16:10,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 11:16:10,909 INFO L93 Difference]: Finished difference Result 1463 states and 1862 transitions. [2018-12-09 11:16:10,909 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-12-09 11:16:10,909 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 128 [2018-12-09 11:16:10,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 11:16:10,914 INFO L225 Difference]: With dead ends: 1463 [2018-12-09 11:16:10,914 INFO L226 Difference]: Without dead ends: 1070 [2018-12-09 11:16:10,915 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 135 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=149, Invalid=553, Unknown=0, NotChecked=0, Total=702 [2018-12-09 11:16:10,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1070 states. [2018-12-09 11:16:10,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1070 to 1026. [2018-12-09 11:16:10,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1026 states. [2018-12-09 11:16:10,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1026 states to 1026 states and 1239 transitions. [2018-12-09 11:16:10,972 INFO L78 Accepts]: Start accepts. Automaton has 1026 states and 1239 transitions. Word has length 128 [2018-12-09 11:16:10,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 11:16:10,972 INFO L480 AbstractCegarLoop]: Abstraction has 1026 states and 1239 transitions. [2018-12-09 11:16:10,972 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-12-09 11:16:10,973 INFO L276 IsEmpty]: Start isEmpty. Operand 1026 states and 1239 transitions. [2018-12-09 11:16:10,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-12-09 11:16:10,976 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 11:16:10,976 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 11:16:10,976 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 11:16:10,977 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 11:16:10,977 INFO L82 PathProgramCache]: Analyzing trace with hash 1568708698, now seen corresponding path program 1 times [2018-12-09 11:16:10,977 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 11:16:10,977 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:16:10,978 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 11:16:10,978 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:16:10,978 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 11:16:10,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:16:11,056 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-12-09 11:16:11,057 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 11:16:11,057 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 11:16:11,057 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 133 with the following transitions: [2018-12-09 11:16:11,057 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [42], [44], [45], [46], [49], [51], [54], [61], [64], [65], [69], [70], [71], [72], [81], [85], [89], [92], [97], [103], [105], [108], [123], [124], [125], [126], [127], [129], [134], [137], [138], [140], [145], [147], [148], [149], [150], [186], [189], [193], [199], [200], [201], [204], [208], [209], [215], [219], [220], [223], [224], [225], [226], [227], [229], [230], [231], [232], [233], [234], [235], [236], [237], [239], [241], [242], [243], [244], [245], [246], [249], [250], [251], [252], [255], [256], [259], [260], [261], [262], [263], [264], [269], [270], [271], [272], [273], [274], [275], [276], [277] [2018-12-09 11:16:11,060 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 11:16:11,060 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 11:16:11,234 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 11:16:11,234 INFO L272 AbstractInterpreter]: Visited 92 different actions 100 times. Merged at 5 different actions 5 times. Never widened. Performed 3252 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3252 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 132 variables. [2018-12-09 11:16:11,236 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 11:16:11,237 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 11:16:11,398 INFO L227 lantSequenceWeakener]: Weakened 115 states. On average, predicates are now at 97.03% of their original sizes. [2018-12-09 11:16:11,398 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 11:16:11,646 INFO L418 sIntCurrentIteration]: We unified 131 AI predicates to 131 [2018-12-09 11:16:11,646 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 11:16:11,646 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 11:16:11,646 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [33] imperfect sequences [5] total 36 [2018-12-09 11:16:11,646 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 11:16:11,647 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-12-09 11:16:11,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-12-09 11:16:11,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=937, Unknown=0, NotChecked=0, Total=1056 [2018-12-09 11:16:11,647 INFO L87 Difference]: Start difference. First operand 1026 states and 1239 transitions. Second operand 33 states. [2018-12-09 11:16:16,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 11:16:16,428 INFO L93 Difference]: Finished difference Result 1554 states and 1924 transitions. [2018-12-09 11:16:16,429 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-12-09 11:16:16,429 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 132 [2018-12-09 11:16:16,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 11:16:16,432 INFO L225 Difference]: With dead ends: 1554 [2018-12-09 11:16:16,432 INFO L226 Difference]: Without dead ends: 775 [2018-12-09 11:16:16,434 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 154 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 619 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=323, Invalid=2757, Unknown=0, NotChecked=0, Total=3080 [2018-12-09 11:16:16,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2018-12-09 11:16:16,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 722. [2018-12-09 11:16:16,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 722 states. [2018-12-09 11:16:16,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 722 states and 830 transitions. [2018-12-09 11:16:16,473 INFO L78 Accepts]: Start accepts. Automaton has 722 states and 830 transitions. Word has length 132 [2018-12-09 11:16:16,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 11:16:16,473 INFO L480 AbstractCegarLoop]: Abstraction has 722 states and 830 transitions. [2018-12-09 11:16:16,473 INFO L481 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-12-09 11:16:16,474 INFO L276 IsEmpty]: Start isEmpty. Operand 722 states and 830 transitions. [2018-12-09 11:16:16,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-12-09 11:16:16,475 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 11:16:16,476 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 11:16:16,476 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 11:16:16,476 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 11:16:16,476 INFO L82 PathProgramCache]: Analyzing trace with hash -124544775, now seen corresponding path program 1 times [2018-12-09 11:16:16,476 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 11:16:16,477 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:16:16,477 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 11:16:16,477 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:16:16,477 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 11:16:16,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:16:16,541 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-09 11:16:16,541 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 11:16:16,541 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 11:16:16,542 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 129 with the following transitions: [2018-12-09 11:16:16,542 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [42], [44], [45], [46], [49], [51], [54], [61], [64], [65], [68], [70], [71], [72], [81], [85], [89], [95], [97], [100], [103], [105], [108], [123], [124], [125], [126], [127], [129], [134], [137], [138], [140], [143], [147], [148], [149], [150], [155], [157], [186], [189], [193], [199], [200], [201], [204], [208], [209], [220], [223], [224], [225], [226], [227], [229], [230], [231], [232], [233], [234], [235], [236], [237], [239], [241], [242], [243], [244], [245], [246], [249], [250], [253], [254], [255], [256], [259], [260], [261], [262], [263], [264], [269], [270], [271], [272], [273], [274], [275], [276], [277] [2018-12-09 11:16:16,545 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 11:16:16,545 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 11:16:16,699 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 11:16:16,699 INFO L272 AbstractInterpreter]: Visited 59 different actions 83 times. Merged at 3 different actions 3 times. Never widened. Performed 4021 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4021 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-12-09 11:16:16,701 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 11:16:16,701 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 11:16:16,807 INFO L227 lantSequenceWeakener]: Weakened 68 states. On average, predicates are now at 96.61% of their original sizes. [2018-12-09 11:16:16,807 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 11:16:16,914 INFO L418 sIntCurrentIteration]: We unified 127 AI predicates to 127 [2018-12-09 11:16:16,914 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 11:16:16,914 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 11:16:16,914 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [6] total 22 [2018-12-09 11:16:16,914 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 11:16:16,915 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-12-09 11:16:16,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-12-09 11:16:16,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2018-12-09 11:16:16,915 INFO L87 Difference]: Start difference. First operand 722 states and 830 transitions. Second operand 18 states. [2018-12-09 11:16:18,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 11:16:18,473 INFO L93 Difference]: Finished difference Result 1301 states and 1499 transitions. [2018-12-09 11:16:18,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-12-09 11:16:18,473 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 128 [2018-12-09 11:16:18,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 11:16:18,475 INFO L225 Difference]: With dead ends: 1301 [2018-12-09 11:16:18,475 INFO L226 Difference]: Without dead ends: 603 [2018-12-09 11:16:18,476 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 142 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=199, Invalid=857, Unknown=0, NotChecked=0, Total=1056 [2018-12-09 11:16:18,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2018-12-09 11:16:18,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 603. [2018-12-09 11:16:18,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 603 states. [2018-12-09 11:16:18,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 686 transitions. [2018-12-09 11:16:18,494 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 686 transitions. Word has length 128 [2018-12-09 11:16:18,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 11:16:18,495 INFO L480 AbstractCegarLoop]: Abstraction has 603 states and 686 transitions. [2018-12-09 11:16:18,495 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-12-09 11:16:18,495 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 686 transitions. [2018-12-09 11:16:18,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-12-09 11:16:18,496 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 11:16:18,496 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 11:16:18,496 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 11:16:18,496 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 11:16:18,496 INFO L82 PathProgramCache]: Analyzing trace with hash 1623220820, now seen corresponding path program 1 times [2018-12-09 11:16:18,496 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 11:16:18,497 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:16:18,497 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 11:16:18,497 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:16:18,497 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 11:16:18,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:16:18,590 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-09 11:16:18,590 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 11:16:18,590 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 11:16:18,590 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 129 with the following transitions: [2018-12-09 11:16:18,591 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [42], [44], [45], [46], [49], [51], [54], [61], [64], [65], [69], [70], [71], [72], [81], [85], [89], [92], [95], [97], [103], [105], [108], [123], [124], [125], [126], [127], [129], [134], [137], [138], [140], [145], [147], [148], [149], [150], [186], [189], [193], [199], [200], [201], [204], [208], [209], [215], [219], [220], [223], [224], [225], [226], [227], [229], [230], [231], [232], [233], [234], [235], [236], [237], [239], [241], [242], [243], [244], [245], [246], [249], [250], [251], [252], [255], [256], [259], [260], [261], [262], [263], [264], [269], [270], [271], [272], [273], [274], [275], [276], [277] [2018-12-09 11:16:18,592 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 11:16:18,592 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 11:16:19,101 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 11:16:19,101 INFO L272 AbstractInterpreter]: Visited 108 different actions 479 times. Merged at 15 different actions 42 times. Never widened. Performed 16052 root evaluator evaluations with a maximum evaluation depth of 3. Performed 16052 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 9 fixpoints after 3 different actions. Largest state had 132 variables. [2018-12-09 11:16:19,103 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 11:16:19,103 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 11:16:19,104 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 11:16:19,104 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4eaf43a2-6059-4c0b-8138-f4d6a44a5534/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 11:16:19,110 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 11:16:19,110 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 11:16:19,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:16:19,189 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 11:16:19,274 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 11:16:19,274 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 11:16:19,438 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-09 11:16:19,454 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 11:16:19,454 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2018-12-09 11:16:19,454 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 11:16:19,454 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-12-09 11:16:19,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-12-09 11:16:19,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2018-12-09 11:16:19,455 INFO L87 Difference]: Start difference. First operand 603 states and 686 transitions. Second operand 15 states. [2018-12-09 11:16:20,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 11:16:20,202 INFO L93 Difference]: Finished difference Result 1110 states and 1408 transitions. [2018-12-09 11:16:20,203 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-12-09 11:16:20,203 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 128 [2018-12-09 11:16:20,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 11:16:20,205 INFO L225 Difference]: With dead ends: 1110 [2018-12-09 11:16:20,205 INFO L226 Difference]: Without dead ends: 823 [2018-12-09 11:16:20,206 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 248 SyntacticMatches, 6 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=243, Invalid=687, Unknown=0, NotChecked=0, Total=930 [2018-12-09 11:16:20,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 823 states. [2018-12-09 11:16:20,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 823 to 720. [2018-12-09 11:16:20,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 720 states. [2018-12-09 11:16:20,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 831 transitions. [2018-12-09 11:16:20,229 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 831 transitions. Word has length 128 [2018-12-09 11:16:20,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 11:16:20,230 INFO L480 AbstractCegarLoop]: Abstraction has 720 states and 831 transitions. [2018-12-09 11:16:20,230 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-12-09 11:16:20,230 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 831 transitions. [2018-12-09 11:16:20,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2018-12-09 11:16:20,231 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 11:16:20,231 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:16:20,231 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 11:16:20,231 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 11:16:20,231 INFO L82 PathProgramCache]: Analyzing trace with hash -1743969172, now seen corresponding path program 2 times [2018-12-09 11:16:20,231 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 11:16:20,232 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:16:20,232 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 11:16:20,232 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:16:20,232 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 11:16:20,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 11:16:20,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 11:16:20,330 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 11:16:20,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 11:16:20 BoogieIcfgContainer [2018-12-09 11:16:20,420 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 11:16:20,421 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 11:16:20,421 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 11:16:20,421 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 11:16:20,421 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 11:16:05" (3/4) ... [2018-12-09 11:16:20,422 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-09 11:16:20,511 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_4eaf43a2-6059-4c0b-8138-f4d6a44a5534/bin-2019/utaipan/witness.graphml [2018-12-09 11:16:20,511 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 11:16:20,511 INFO L168 Benchmark]: Toolchain (without parser) took 15998.96 ms. Allocated memory was 1.0 GB in the beginning and 1.9 GB in the end (delta: 862.5 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -170.7 MB). Peak memory consumption was 691.7 MB. Max. memory is 11.5 GB. [2018-12-09 11:16:20,512 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 11:16:20,512 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.15 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -152.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. [2018-12-09 11:16:20,512 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.88 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 11:16:20,512 INFO L168 Benchmark]: Boogie Preprocessor took 20.67 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 11:16:20,513 INFO L168 Benchmark]: RCFGBuilder took 317.98 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: 45.8 MB). Peak memory consumption was 45.8 MB. Max. memory is 11.5 GB. [2018-12-09 11:16:20,513 INFO L168 Benchmark]: TraceAbstraction took 15264.25 ms. Allocated memory was 1.1 GB in the beginning and 1.9 GB in the end (delta: 743.4 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -127.3 MB). Peak memory consumption was 616.1 MB. Max. memory is 11.5 GB. [2018-12-09 11:16:20,513 INFO L168 Benchmark]: Witness Printer took 90.38 ms. Allocated memory is still 1.9 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 63.5 MB). Peak memory consumption was 63.5 MB. Max. memory is 11.5 GB. [2018-12-09 11:16:20,514 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 284.15 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -152.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.88 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.67 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 317.98 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: 45.8 MB). Peak memory consumption was 45.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 15264.25 ms. Allocated memory was 1.1 GB in the beginning and 1.9 GB in the end (delta: 743.4 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -127.3 MB). Peak memory consumption was 616.1 MB. Max. memory is 11.5 GB. * Witness Printer took 90.38 ms. Allocated memory is still 1.9 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 63.5 MB). Peak memory consumption was 63.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 211]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L385] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L652] int pumpRunning = 0; [L653] int systemActive = 1; [L822] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=200, \old(head)=201, \old(head)=189, \old(methaneLevelCritical)=150, \old(pumpRunning)=140, \old(systemActive)=139, \old(waterLevel)=147, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L895] int retValue_acc ; [L896] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L900] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L901] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L902] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L198] int retValue_acc ; [L201] retValue_acc = 1 [L202] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L902] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L902] tmp = valid_product() [L904] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L906] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L907] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L889] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L585] int splverifierCounter ; [L586] int tmp ; [L587] int tmp___0 ; [L588] int tmp___1 ; [L589] int tmp___2 ; [L592] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L594] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L596] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L602] tmp = __VERIFIER_nondet_int() [L604] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L606] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L65] COND TRUE waterLevel < 2 [L66] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L606] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L612] tmp___0 = __VERIFIER_nondet_int() [L614] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L622] tmp___2 = __VERIFIER_nondet_int() [L624] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L637] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L659] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L666] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L668] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L688] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L691] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L693] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L803] int retValue_acc ; [L804] int tmp ; [L805] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L809] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L127] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L130] COND FALSE !(waterLevel < 2) [L134] retValue_acc = 0 [L135] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L809] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L809] tmp = isHighWaterSensorDry() [L811] COND FALSE !(\read(tmp)) [L814] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L816] retValue_acc = tmp___0 [L817] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L693] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L693] tmp = isHighWaterLevel() [L695] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L697] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L722] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L726] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L747] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L751] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L751] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L751] retValue_acc = isMethaneLevelCritical() [L753] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L726] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L726] tmp = isMethaneAlarm() [L728] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L732] CALL activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L716] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L732] RET activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L697] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L668] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L674] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L144] int tmp ; [L145] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L149] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=2, systemActive=1, waterLevel=2] [L149] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L149] tmp = getWaterLevel() [L151] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=2, waterLevel=2] [L674] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L637] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L594] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L596] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L602] tmp = __VERIFIER_nondet_int() [L604] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L612] tmp___0 = __VERIFIER_nondet_int() [L614] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L622] tmp___2 = __VERIFIER_nondet_int() [L624] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L637] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L659] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L661] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L53] COND TRUE waterLevel > 0 [L54] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L661] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L666] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L668] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L688] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L691] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L706] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L668] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L674] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L144] int tmp ; [L145] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L149] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L149] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=1, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L149] tmp = getWaterLevel() [L151] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L674] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L637] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L594] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L596] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L602] tmp = __VERIFIER_nondet_int() [L604] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L612] tmp___0 = __VERIFIER_nondet_int() [L614] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L622] tmp___2 = __VERIFIER_nondet_int() [L624] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L637] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L659] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L661] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L53] COND TRUE waterLevel > 0 [L54] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L661] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L666] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L668] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L688] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L691] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L706] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L668] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L674] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L144] int tmp ; [L145] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L149] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L149] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, getWaterLevel()=0, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L149] tmp = getWaterLevel() [L151] COND TRUE tmp == 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L153] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L758] int retValue_acc ; [L761] retValue_acc = pumpRunning [L762] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L153] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L153] tmp___0 = isPumpRunning() [L155] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=0] [L157] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L211] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 26 procedures, 133 locations, 1 error locations. UNSAFE Result, 15.2s OverallTime, 11 OverallIterations, 3 TraceHistogramMax, 11.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1587 SDtfs, 2299 SDslu, 8742 SDs, 0 SdLazy, 4945 SolverSat, 891 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.8s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 775 GetRequests, 593 SyntacticMatches, 6 SemanticMatches, 176 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1131 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1026occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.2s AbstIntTime, 4 AbstIntIterations, 3 AbstIntStrong, 0.9974192406299853 AbsIntWeakeningRatio, 0.9116883116883117 AbsIntAvgWeakeningVarsNumRemoved, 51.420779220779224 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 231 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 1156 NumberOfCodeBlocks, 1156 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1109 ConstructedInterpolants, 0 QuantifiedInterpolants, 187086 SizeOfPredicates, 8 NumberOfNonLiveVariables, 796 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 12 InterpolantComputations, 6 PerfectInterpolantSequences, 126/148 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...