./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product38_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_563a1cde-9ee2-4629-8508-65e44103fe11/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_563a1cde-9ee2-4629-8508-65e44103fe11/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_563a1cde-9ee2-4629-8508-65e44103fe11/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_563a1cde-9ee2-4629-8508-65e44103fe11/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product38_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_563a1cde-9ee2-4629-8508-65e44103fe11/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_563a1cde-9ee2-4629-8508-65e44103fe11/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 a0c13a298b8ef5fea6639223509104e0f4da0801 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 [2018-12-08 23:45:21,202 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 23:45:21,203 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 23:45:21,209 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 23:45:21,209 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 23:45:21,210 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 23:45:21,211 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 23:45:21,212 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 23:45:21,213 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 23:45:21,213 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 23:45:21,214 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 23:45:21,214 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 23:45:21,215 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 23:45:21,215 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 23:45:21,216 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 23:45:21,216 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 23:45:21,217 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 23:45:21,217 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 23:45:21,218 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 23:45:21,219 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 23:45:21,220 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 23:45:21,220 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 23:45:21,222 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 23:45:21,222 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 23:45:21,222 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 23:45:21,222 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 23:45:21,223 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 23:45:21,223 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 23:45:21,224 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 23:45:21,224 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 23:45:21,225 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 23:45:21,225 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 23:45:21,225 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 23:45:21,225 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 23:45:21,226 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 23:45:21,226 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 23:45:21,226 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_563a1cde-9ee2-4629-8508-65e44103fe11/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-08 23:45:21,233 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 23:45:21,234 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 23:45:21,234 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 23:45:21,234 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 23:45:21,234 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 23:45:21,235 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 23:45:21,235 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 23:45:21,235 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-08 23:45:21,235 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 23:45:21,235 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 23:45:21,235 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-08 23:45:21,235 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-08 23:45:21,235 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 23:45:21,236 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 23:45:21,236 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 23:45:21,236 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 23:45:21,236 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 23:45:21,236 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 23:45:21,236 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 23:45:21,237 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 23:45:21,237 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 23:45:21,237 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 23:45:21,237 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 23:45:21,237 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 23:45:21,237 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 23:45:21,237 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 23:45:21,237 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 23:45:21,238 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 23:45:21,238 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 23:45:21,238 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 23:45:21,238 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 23:45:21,238 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 23:45:21,238 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-08 23:45:21,238 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 23:45:21,238 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 23:45:21,239 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-08 23:45:21,239 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_563a1cde-9ee2-4629-8508-65e44103fe11/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 -> a0c13a298b8ef5fea6639223509104e0f4da0801 [2018-12-08 23:45:21,256 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 23:45:21,264 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 23:45:21,266 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 23:45:21,267 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 23:45:21,268 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 23:45:21,268 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_563a1cde-9ee2-4629-8508-65e44103fe11/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product38_false-unreach-call_false-termination.cil.c [2018-12-08 23:45:21,308 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_563a1cde-9ee2-4629-8508-65e44103fe11/bin-2019/utaipan/data/e17b0479e/9f3be955f67d430eb06d391d86aedbf0/FLAG854960095 [2018-12-08 23:45:21,732 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 23:45:21,733 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_563a1cde-9ee2-4629-8508-65e44103fe11/sv-benchmarks/c/product-lines/minepump_spec1_product38_false-unreach-call_false-termination.cil.c [2018-12-08 23:45:21,738 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_563a1cde-9ee2-4629-8508-65e44103fe11/bin-2019/utaipan/data/e17b0479e/9f3be955f67d430eb06d391d86aedbf0/FLAG854960095 [2018-12-08 23:45:21,746 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_563a1cde-9ee2-4629-8508-65e44103fe11/bin-2019/utaipan/data/e17b0479e/9f3be955f67d430eb06d391d86aedbf0 [2018-12-08 23:45:21,748 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 23:45:21,749 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 23:45:21,749 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 23:45:21,749 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 23:45:21,751 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 23:45:21,752 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 11:45:21" (1/1) ... [2018-12-08 23:45:21,753 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46c0e1c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:45:21, skipping insertion in model container [2018-12-08 23:45:21,753 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 11:45:21" (1/1) ... [2018-12-08 23:45:21,757 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 23:45:21,778 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 23:45:21,942 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 23:45:21,987 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 23:45:22,030 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 23:45:22,044 INFO L195 MainTranslator]: Completed translation [2018-12-08 23:45:22,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:45:22 WrapperNode [2018-12-08 23:45:22,045 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 23:45:22,045 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 23:45:22,045 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 23:45:22,046 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 23:45:22,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:45:22" (1/1) ... [2018-12-08 23:45:22,060 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:45:22" (1/1) ... [2018-12-08 23:45:22,066 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 23:45:22,066 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 23:45:22,066 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 23:45:22,066 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 23:45:22,072 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:45:22" (1/1) ... [2018-12-08 23:45:22,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:45:22" (1/1) ... [2018-12-08 23:45:22,075 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:45:22" (1/1) ... [2018-12-08 23:45:22,075 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:45:22" (1/1) ... [2018-12-08 23:45:22,081 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:45:22" (1/1) ... [2018-12-08 23:45:22,085 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:45:22" (1/1) ... [2018-12-08 23:45:22,087 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:45:22" (1/1) ... [2018-12-08 23:45:22,089 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 23:45:22,089 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 23:45:22,089 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 23:45:22,089 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 23:45:22,090 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:45:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_563a1cde-9ee2-4629-8508-65e44103fe11/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 [2018-12-08 23:45:22,125 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-08 23:45:22,125 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-08 23:45:22,125 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 23:45:22,125 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 23:45:22,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 23:45:22,125 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-08 23:45:22,125 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-08 23:45:22,125 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-08 23:45:22,125 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-08 23:45:22,126 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-08 23:45:22,126 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-08 23:45:22,126 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-08 23:45:22,126 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-08 23:45:22,126 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-08 23:45:22,126 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-08 23:45:22,126 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-08 23:45:22,126 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-08 23:45:22,126 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-08 23:45:22,126 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-08 23:45:22,126 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-08 23:45:22,126 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-08 23:45:22,126 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-08 23:45:22,127 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-08 23:45:22,127 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-08 23:45:22,127 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-08 23:45:22,127 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-08 23:45:22,127 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-08 23:45:22,127 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2018-12-08 23:45:22,127 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2018-12-08 23:45:22,127 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-12-08 23:45:22,127 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-12-08 23:45:22,127 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-08 23:45:22,127 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-08 23:45:22,127 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-08 23:45:22,127 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-08 23:45:22,127 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-08 23:45:22,127 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-08 23:45:22,128 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-08 23:45:22,128 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-08 23:45:22,128 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-08 23:45:22,128 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-08 23:45:22,128 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-12-08 23:45:22,128 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-12-08 23:45:22,128 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-08 23:45:22,128 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-08 23:45:22,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-08 23:45:22,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 23:45:22,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 23:45:22,128 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-08 23:45:22,128 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-08 23:45:22,128 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-08 23:45:22,129 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-08 23:45:22,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 23:45:22,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 23:45:22,129 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2018-12-08 23:45:22,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2018-12-08 23:45:22,440 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 23:45:22,440 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-08 23:45:22,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:45:22 BoogieIcfgContainer [2018-12-08 23:45:22,440 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 23:45:22,441 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 23:45:22,441 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 23:45:22,443 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 23:45:22,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 11:45:21" (1/3) ... [2018-12-08 23:45:22,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26327ff6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 11:45:22, skipping insertion in model container [2018-12-08 23:45:22,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:45:22" (2/3) ... [2018-12-08 23:45:22,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26327ff6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 11:45:22, skipping insertion in model container [2018-12-08 23:45:22,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:45:22" (3/3) ... [2018-12-08 23:45:22,445 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product38_false-unreach-call_false-termination.cil.c [2018-12-08 23:45:22,450 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 23:45:22,455 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 23:45:22,464 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 23:45:22,481 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 23:45:22,481 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 23:45:22,482 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 23:45:22,482 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 23:45:22,482 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 23:45:22,482 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 23:45:22,482 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 23:45:22,482 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 23:45:22,493 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states. [2018-12-08 23:45:22,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-08 23:45:22,498 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:45:22,498 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] [2018-12-08 23:45:22,499 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 23:45:22,502 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:45:22,503 INFO L82 PathProgramCache]: Analyzing trace with hash 434289513, now seen corresponding path program 1 times [2018-12-08 23:45:22,504 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:45:22,532 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:22,532 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:45:22,532 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:22,532 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:45:22,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:45:22,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:45:22,637 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:45:22,637 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 23:45:22,637 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 23:45:22,640 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-08 23:45:22,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-08 23:45:22,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 23:45:22,649 INFO L87 Difference]: Start difference. First operand 140 states. Second operand 2 states. [2018-12-08 23:45:22,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:45:22,671 INFO L93 Difference]: Finished difference Result 254 states and 315 transitions. [2018-12-08 23:45:22,671 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-08 23:45:22,672 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-08 23:45:22,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:45:22,679 INFO L225 Difference]: With dead ends: 254 [2018-12-08 23:45:22,679 INFO L226 Difference]: Without dead ends: 127 [2018-12-08 23:45:22,681 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 [2018-12-08 23:45:22,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2018-12-08 23:45:22,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2018-12-08 23:45:22,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2018-12-08 23:45:22,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 149 transitions. [2018-12-08 23:45:22,713 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 149 transitions. Word has length 46 [2018-12-08 23:45:22,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:45:22,713 INFO L480 AbstractCegarLoop]: Abstraction has 127 states and 149 transitions. [2018-12-08 23:45:22,713 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-08 23:45:22,713 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 149 transitions. [2018-12-08 23:45:22,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-08 23:45:22,715 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:45:22,715 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] [2018-12-08 23:45:22,715 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 23:45:22,715 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:45:22,715 INFO L82 PathProgramCache]: Analyzing trace with hash 1716828156, now seen corresponding path program 1 times [2018-12-08 23:45:22,715 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:45:22,716 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:22,716 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:45:22,716 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:22,716 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:45:22,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:45:22,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:45:22,762 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:45:22,762 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 23:45:22,762 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 23:45:22,763 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 23:45:22,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 23:45:22,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 23:45:22,763 INFO L87 Difference]: Start difference. First operand 127 states and 149 transitions. Second operand 3 states. [2018-12-08 23:45:22,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:45:22,775 INFO L93 Difference]: Finished difference Result 199 states and 233 transitions. [2018-12-08 23:45:22,776 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 23:45:22,776 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-08 23:45:22,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:45:22,777 INFO L225 Difference]: With dead ends: 199 [2018-12-08 23:45:22,777 INFO L226 Difference]: Without dead ends: 118 [2018-12-08 23:45:22,777 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 [2018-12-08 23:45:22,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2018-12-08 23:45:22,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2018-12-08 23:45:22,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2018-12-08 23:45:22,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 137 transitions. [2018-12-08 23:45:22,785 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 137 transitions. Word has length 47 [2018-12-08 23:45:22,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:45:22,785 INFO L480 AbstractCegarLoop]: Abstraction has 118 states and 137 transitions. [2018-12-08 23:45:22,785 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 23:45:22,785 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 137 transitions. [2018-12-08 23:45:22,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-12-08 23:45:22,786 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:45:22,786 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:45:22,786 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 23:45:22,786 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:45:22,786 INFO L82 PathProgramCache]: Analyzing trace with hash 1187640100, now seen corresponding path program 1 times [2018-12-08 23:45:22,786 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:45:22,787 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:22,787 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:45:22,787 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:22,787 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:45:22,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:45:22,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:45:22,859 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:45:22,859 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-08 23:45:22,859 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 23:45:22,859 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 23:45:22,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 23:45:22,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-08 23:45:22,860 INFO L87 Difference]: Start difference. First operand 118 states and 137 transitions. Second operand 7 states. [2018-12-08 23:45:23,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:45:23,031 INFO L93 Difference]: Finished difference Result 212 states and 251 transitions. [2018-12-08 23:45:23,031 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 23:45:23,032 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2018-12-08 23:45:23,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:45:23,033 INFO L225 Difference]: With dead ends: 212 [2018-12-08 23:45:23,033 INFO L226 Difference]: Without dead ends: 118 [2018-12-08 23:45:23,033 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-08 23:45:23,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2018-12-08 23:45:23,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2018-12-08 23:45:23,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2018-12-08 23:45:23,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 136 transitions. [2018-12-08 23:45:23,043 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 136 transitions. Word has length 52 [2018-12-08 23:45:23,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:45:23,043 INFO L480 AbstractCegarLoop]: Abstraction has 118 states and 136 transitions. [2018-12-08 23:45:23,043 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 23:45:23,043 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 136 transitions. [2018-12-08 23:45:23,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-12-08 23:45:23,044 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:45:23,045 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] [2018-12-08 23:45:23,045 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 23:45:23,045 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:45:23,045 INFO L82 PathProgramCache]: Analyzing trace with hash -495348963, now seen corresponding path program 1 times [2018-12-08 23:45:23,045 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:45:23,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:23,046 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:45:23,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:23,046 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:45:23,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:45:23,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:45:23,122 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:45:23,122 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-08 23:45:23,122 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 23:45:23,122 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 23:45:23,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 23:45:23,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-08 23:45:23,123 INFO L87 Difference]: Start difference. First operand 118 states and 136 transitions. Second operand 5 states. [2018-12-08 23:45:23,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:45:23,379 INFO L93 Difference]: Finished difference Result 311 states and 375 transitions. [2018-12-08 23:45:23,379 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-08 23:45:23,379 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 65 [2018-12-08 23:45:23,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:45:23,381 INFO L225 Difference]: With dead ends: 311 [2018-12-08 23:45:23,381 INFO L226 Difference]: Without dead ends: 217 [2018-12-08 23:45:23,382 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-08 23:45:23,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2018-12-08 23:45:23,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 198. [2018-12-08 23:45:23,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2018-12-08 23:45:23,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 225 transitions. [2018-12-08 23:45:23,400 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 225 transitions. Word has length 65 [2018-12-08 23:45:23,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:45:23,400 INFO L480 AbstractCegarLoop]: Abstraction has 198 states and 225 transitions. [2018-12-08 23:45:23,401 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 23:45:23,401 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 225 transitions. [2018-12-08 23:45:23,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-12-08 23:45:23,402 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:45:23,402 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:45:23,402 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 23:45:23,402 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:45:23,402 INFO L82 PathProgramCache]: Analyzing trace with hash -477447287, now seen corresponding path program 1 times [2018-12-08 23:45:23,402 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:45:23,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:23,403 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:45:23,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:23,403 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:45:23,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:45:23,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:45:23,465 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:45:23,465 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 23:45:23,466 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 23:45:23,466 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 23:45:23,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 23:45:23,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-08 23:45:23,466 INFO L87 Difference]: Start difference. First operand 198 states and 225 transitions. Second operand 6 states. [2018-12-08 23:45:23,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:45:23,568 INFO L93 Difference]: Finished difference Result 531 states and 625 transitions. [2018-12-08 23:45:23,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-08 23:45:23,568 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 79 [2018-12-08 23:45:23,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:45:23,570 INFO L225 Difference]: With dead ends: 531 [2018-12-08 23:45:23,570 INFO L226 Difference]: Without dead ends: 357 [2018-12-08 23:45:23,571 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-12-08 23:45:23,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2018-12-08 23:45:23,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 351. [2018-12-08 23:45:23,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 351 states. [2018-12-08 23:45:23,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 400 transitions. [2018-12-08 23:45:23,590 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 400 transitions. Word has length 79 [2018-12-08 23:45:23,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:45:23,591 INFO L480 AbstractCegarLoop]: Abstraction has 351 states and 400 transitions. [2018-12-08 23:45:23,591 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 23:45:23,591 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 400 transitions. [2018-12-08 23:45:23,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-12-08 23:45:23,592 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:45:23,592 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:45:23,592 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 23:45:23,592 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:45:23,592 INFO L82 PathProgramCache]: Analyzing trace with hash -707017779, now seen corresponding path program 1 times [2018-12-08 23:45:23,592 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:45:23,593 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:23,593 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:45:23,593 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:23,593 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:45:23,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:45:23,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:45:23,653 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:45:23,653 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-08 23:45:23,654 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 23:45:23,654 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 23:45:23,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 23:45:23,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-08 23:45:23,655 INFO L87 Difference]: Start difference. First operand 351 states and 400 transitions. Second operand 7 states. [2018-12-08 23:45:23,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:45:23,941 INFO L93 Difference]: Finished difference Result 386 states and 454 transitions. [2018-12-08 23:45:23,941 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-08 23:45:23,941 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 83 [2018-12-08 23:45:23,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:45:23,942 INFO L225 Difference]: With dead ends: 386 [2018-12-08 23:45:23,943 INFO L226 Difference]: Without dead ends: 383 [2018-12-08 23:45:23,943 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-12-08 23:45:23,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2018-12-08 23:45:23,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 351. [2018-12-08 23:45:23,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 351 states. [2018-12-08 23:45:23,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 399 transitions. [2018-12-08 23:45:23,964 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 399 transitions. Word has length 83 [2018-12-08 23:45:23,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:45:23,965 INFO L480 AbstractCegarLoop]: Abstraction has 351 states and 399 transitions. [2018-12-08 23:45:23,965 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 23:45:23,965 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 399 transitions. [2018-12-08 23:45:23,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-12-08 23:45:23,966 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:45:23,967 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:45:23,967 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 23:45:23,967 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:45:23,967 INFO L82 PathProgramCache]: Analyzing trace with hash -1949069049, now seen corresponding path program 1 times [2018-12-08 23:45:23,967 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:45:23,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:23,968 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:45:23,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:23,968 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:45:23,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:45:24,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:45:24,023 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:45:24,023 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 23:45:24,023 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 23:45:24,023 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 23:45:24,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 23:45:24,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-08 23:45:24,024 INFO L87 Difference]: Start difference. First operand 351 states and 399 transitions. Second operand 6 states. [2018-12-08 23:45:24,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:45:24,049 INFO L93 Difference]: Finished difference Result 688 states and 794 transitions. [2018-12-08 23:45:24,050 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 23:45:24,050 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 84 [2018-12-08 23:45:24,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:45:24,052 INFO L225 Difference]: With dead ends: 688 [2018-12-08 23:45:24,052 INFO L226 Difference]: Without dead ends: 361 [2018-12-08 23:45:24,053 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-08 23:45:24,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2018-12-08 23:45:24,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 361. [2018-12-08 23:45:24,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2018-12-08 23:45:24,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 409 transitions. [2018-12-08 23:45:24,071 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 409 transitions. Word has length 84 [2018-12-08 23:45:24,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:45:24,072 INFO L480 AbstractCegarLoop]: Abstraction has 361 states and 409 transitions. [2018-12-08 23:45:24,072 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 23:45:24,072 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 409 transitions. [2018-12-08 23:45:24,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-12-08 23:45:24,073 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:45:24,073 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:45:24,073 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 23:45:24,073 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:45:24,073 INFO L82 PathProgramCache]: Analyzing trace with hash -1926436795, now seen corresponding path program 1 times [2018-12-08 23:45:24,073 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:45:24,074 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:24,074 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:45:24,074 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:24,074 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:45:24,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:45:24,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:45:24,138 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:45:24,138 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-08 23:45:24,138 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 23:45:24,139 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-08 23:45:24,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-08 23:45:24,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-08 23:45:24,139 INFO L87 Difference]: Start difference. First operand 361 states and 409 transitions. Second operand 8 states. [2018-12-08 23:45:24,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:45:24,164 INFO L93 Difference]: Finished difference Result 712 states and 828 transitions. [2018-12-08 23:45:24,164 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-08 23:45:24,164 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 84 [2018-12-08 23:45:24,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:45:24,165 INFO L225 Difference]: With dead ends: 712 [2018-12-08 23:45:24,166 INFO L226 Difference]: Without dead ends: 375 [2018-12-08 23:45:24,166 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 [2018-12-08 23:45:24,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2018-12-08 23:45:24,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 369. [2018-12-08 23:45:24,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 369 states. [2018-12-08 23:45:24,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 417 transitions. [2018-12-08 23:45:24,178 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 417 transitions. Word has length 84 [2018-12-08 23:45:24,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:45:24,178 INFO L480 AbstractCegarLoop]: Abstraction has 369 states and 417 transitions. [2018-12-08 23:45:24,178 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-08 23:45:24,178 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 417 transitions. [2018-12-08 23:45:24,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-12-08 23:45:24,179 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:45:24,179 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:45:24,179 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 23:45:24,179 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:45:24,179 INFO L82 PathProgramCache]: Analyzing trace with hash -900944796, now seen corresponding path program 1 times [2018-12-08 23:45:24,179 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:45:24,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:24,180 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:45:24,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:24,180 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:45:24,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:45:24,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:45:24,223 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:45:24,223 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-08 23:45:24,223 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 23:45:24,223 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 23:45:24,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 23:45:24,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-08 23:45:24,223 INFO L87 Difference]: Start difference. First operand 369 states and 417 transitions. Second operand 4 states. [2018-12-08 23:45:24,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:45:24,320 INFO L93 Difference]: Finished difference Result 1123 states and 1338 transitions. [2018-12-08 23:45:24,320 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-08 23:45:24,321 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 84 [2018-12-08 23:45:24,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:45:24,323 INFO L225 Difference]: With dead ends: 1123 [2018-12-08 23:45:24,323 INFO L226 Difference]: Without dead ends: 778 [2018-12-08 23:45:24,324 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-08 23:45:24,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2018-12-08 23:45:24,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 501. [2018-12-08 23:45:24,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 501 states. [2018-12-08 23:45:24,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 562 transitions. [2018-12-08 23:45:24,348 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 562 transitions. Word has length 84 [2018-12-08 23:45:24,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:45:24,348 INFO L480 AbstractCegarLoop]: Abstraction has 501 states and 562 transitions. [2018-12-08 23:45:24,348 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 23:45:24,348 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 562 transitions. [2018-12-08 23:45:24,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-12-08 23:45:24,349 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:45:24,350 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:45:24,350 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 23:45:24,350 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:45:24,350 INFO L82 PathProgramCache]: Analyzing trace with hash -71269890, now seen corresponding path program 1 times [2018-12-08 23:45:24,350 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:45:24,351 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:24,351 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:45:24,351 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:45:24,351 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:45:24,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 23:45:24,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 23:45:24,426 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 23:45:24,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 11:45:24 BoogieIcfgContainer [2018-12-08 23:45:24,521 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 23:45:24,522 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 23:45:24,522 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 23:45:24,522 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 23:45:24,522 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:45:22" (3/4) ... [2018-12-08 23:45:24,524 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-08 23:45:24,604 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_563a1cde-9ee2-4629-8508-65e44103fe11/bin-2019/utaipan/witness.graphml [2018-12-08 23:45:24,604 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 23:45:24,605 INFO L168 Benchmark]: Toolchain (without parser) took 2856.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 220.2 MB). Free memory was 953.5 MB in the beginning and 895.4 MB in the end (delta: 58.0 MB). Peak memory consumption was 278.2 MB. Max. memory is 11.5 GB. [2018-12-08 23:45:24,606 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 23:45:24,606 INFO L168 Benchmark]: CACSL2BoogieTranslator took 295.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 953.5 MB in the beginning and 1.1 GB in the end (delta: -172.7 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2018-12-08 23:45:24,606 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.38 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 23:45:24,606 INFO L168 Benchmark]: Boogie Preprocessor took 22.80 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 23:45:24,606 INFO L168 Benchmark]: RCFGBuilder took 351.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 47.3 MB). Peak memory consumption was 47.3 MB. Max. memory is 11.5 GB. [2018-12-08 23:45:24,606 INFO L168 Benchmark]: TraceAbstraction took 2080.57 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 78.1 MB). Free memory was 1.1 GB in the beginning and 927.8 MB in the end (delta: 151.1 MB). Peak memory consumption was 229.2 MB. Max. memory is 11.5 GB. [2018-12-08 23:45:24,606 INFO L168 Benchmark]: Witness Printer took 82.74 ms. Allocated memory is still 1.2 GB. Free memory was 927.8 MB in the beginning and 895.4 MB in the end (delta: 32.4 MB). Peak memory consumption was 32.4 MB. Max. memory is 11.5 GB. [2018-12-08 23:45:24,607 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 295.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 953.5 MB in the beginning and 1.1 GB in the end (delta: -172.7 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.38 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.80 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 351.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 47.3 MB). Peak memory consumption was 47.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2080.57 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 78.1 MB). Free memory was 1.1 GB in the beginning and 927.8 MB in the end (delta: 151.1 MB). Peak memory consumption was 229.2 MB. Max. memory is 11.5 GB. * Witness Printer took 82.74 ms. Allocated memory is still 1.2 GB. Free memory was 927.8 MB in the beginning and 895.4 MB in the end (delta: 32.4 MB). Peak memory consumption was 32.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 837]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L377] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L580] int pumpRunning = 0; [L581] int systemActive = 1; [L843] int waterLevel = 1; [L844] int methaneLevelCritical = 0; [L121] int retValue_acc ; [L122] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L126] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L127] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L128] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L170] int retValue_acc ; [L173] retValue_acc = 1 [L174] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L128] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L132] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L133] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L112] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L767] int splverifierCounter ; [L768] int tmp ; [L769] int tmp___0 ; [L770] int tmp___1 ; [L771] int tmp___2 ; [L774] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L776] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L778] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L784] tmp = __VERIFIER_nondet_int() [L786] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L788] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L861] COND TRUE waterLevel < 2 [L862] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L788] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L794] tmp___0 = __VERIFIER_nondet_int() [L796] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L798] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L873] COND FALSE !(\read(methaneLevelCritical)) [L876] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L798] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L804] tmp___2 = __VERIFIER_nondet_int() [L806] COND FALSE !(\read(tmp___2)) [L812] tmp___1 = __VERIFIER_nondet_int() [L814] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___1=1, tmp___2=0, waterLevel=2] [L821] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L587] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L594] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L596] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L642] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L645] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L660] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L616] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L619] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L621] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L739] int retValue_acc ; [L740] int tmp ; [L741] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L745] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L923] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L926] COND FALSE !(waterLevel < 2) [L930] retValue_acc = 0 [L931] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L745] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L745] tmp = isHighWaterSensorDry() [L747] COND FALSE !(\read(tmp)) [L750] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L752] retValue_acc = tmp___0 [L753] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L621] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L621] tmp = isHighWaterLevel() [L623] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L625] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L670] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L625] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L660] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L596] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L602] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L183] int tmp ; [L184] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L188] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L882] int retValue_acc ; [L885] retValue_acc = methaneLevelCritical [L886] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L188] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L188] tmp = isMethaneLevelCritical() [L190] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L192] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L694] int retValue_acc ; [L697] retValue_acc = pumpRunning [L698] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L192] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L192] tmp___0 = isPumpRunning() [L194] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L196] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L837] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 27 procedures, 140 locations, 1 error locations. UNSAFE Result, 2.0s OverallTime, 10 OverallIterations, 1 TraceHistogramMax, 1.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1327 SDtfs, 822 SDslu, 2775 SDs, 0 SdLazy, 974 SolverSat, 271 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 92 GetRequests, 44 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=501occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 340 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 712 NumberOfCodeBlocks, 712 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 615 ConstructedInterpolants, 0 QuantifiedInterpolants, 76469 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...