./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product46_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_4f73ec81-1b58-47ad-ac18-ff68807dad38/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4f73ec81-1b58-47ad-ac18-ff68807dad38/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4f73ec81-1b58-47ad-ac18-ff68807dad38/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4f73ec81-1b58-47ad-ac18-ff68807dad38/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product46_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_4f73ec81-1b58-47ad-ac18-ff68807dad38/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4f73ec81-1b58-47ad-ac18-ff68807dad38/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 209a5f451d4da606f6f89775a0cb8490169e98a1 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 [2018-12-01 22:19:08,190 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-01 22:19:08,191 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-01 22:19:08,196 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-01 22:19:08,197 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-01 22:19:08,197 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-01 22:19:08,198 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-01 22:19:08,198 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-01 22:19:08,199 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-01 22:19:08,199 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-01 22:19:08,200 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-01 22:19:08,200 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-01 22:19:08,200 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-01 22:19:08,201 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-01 22:19:08,201 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-01 22:19:08,202 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-01 22:19:08,202 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-01 22:19:08,203 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-01 22:19:08,204 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-01 22:19:08,204 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-01 22:19:08,205 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-01 22:19:08,206 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-01 22:19:08,207 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-01 22:19:08,207 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-01 22:19:08,207 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-01 22:19:08,207 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-01 22:19:08,208 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-01 22:19:08,208 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-01 22:19:08,209 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-01 22:19:08,209 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-01 22:19:08,209 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-01 22:19:08,210 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-01 22:19:08,210 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-01 22:19:08,210 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-01 22:19:08,210 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-01 22:19:08,211 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-01 22:19:08,211 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4f73ec81-1b58-47ad-ac18-ff68807dad38/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-01 22:19:08,218 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-01 22:19:08,218 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-01 22:19:08,218 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-01 22:19:08,218 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-01 22:19:08,219 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-01 22:19:08,219 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-01 22:19:08,219 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-01 22:19:08,219 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-01 22:19:08,219 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-01 22:19:08,219 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-01 22:19:08,219 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-01 22:19:08,219 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-01 22:19:08,219 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-01 22:19:08,220 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-01 22:19:08,220 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-01 22:19:08,220 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-01 22:19:08,220 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-01 22:19:08,220 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-01 22:19:08,220 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-01 22:19:08,220 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-01 22:19:08,220 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-01 22:19:08,220 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-01 22:19:08,220 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-01 22:19:08,221 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-01 22:19:08,221 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-01 22:19:08,221 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-01 22:19:08,221 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-01 22:19:08,221 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-01 22:19:08,221 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-01 22:19:08,221 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-01 22:19:08,221 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-01 22:19:08,221 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-01 22:19:08,221 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-01 22:19:08,222 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-01 22:19:08,222 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-01 22:19:08,222 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-01 22:19:08,222 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_4f73ec81-1b58-47ad-ac18-ff68807dad38/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 -> 209a5f451d4da606f6f89775a0cb8490169e98a1 [2018-12-01 22:19:08,239 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-01 22:19:08,248 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-01 22:19:08,251 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-01 22:19:08,252 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-01 22:19:08,252 INFO L276 PluginConnector]: CDTParser initialized [2018-12-01 22:19:08,253 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4f73ec81-1b58-47ad-ac18-ff68807dad38/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product46_false-unreach-call_false-termination.cil.c [2018-12-01 22:19:08,290 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4f73ec81-1b58-47ad-ac18-ff68807dad38/bin-2019/utaipan/data/efe58383b/5d84975abe604639975699f1918321b7/FLAG551a4c46a [2018-12-01 22:19:08,734 INFO L307 CDTParser]: Found 1 translation units. [2018-12-01 22:19:08,735 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4f73ec81-1b58-47ad-ac18-ff68807dad38/sv-benchmarks/c/product-lines/minepump_spec4_product46_false-unreach-call_false-termination.cil.c [2018-12-01 22:19:08,740 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4f73ec81-1b58-47ad-ac18-ff68807dad38/bin-2019/utaipan/data/efe58383b/5d84975abe604639975699f1918321b7/FLAG551a4c46a [2018-12-01 22:19:08,748 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4f73ec81-1b58-47ad-ac18-ff68807dad38/bin-2019/utaipan/data/efe58383b/5d84975abe604639975699f1918321b7 [2018-12-01 22:19:08,750 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-01 22:19:08,751 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-01 22:19:08,752 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-01 22:19:08,752 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-01 22:19:08,755 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-01 22:19:08,755 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 10:19:08" (1/1) ... [2018-12-01 22:19:08,757 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cc82c98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:19:08, skipping insertion in model container [2018-12-01 22:19:08,757 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 10:19:08" (1/1) ... [2018-12-01 22:19:08,762 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-01 22:19:08,787 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-01 22:19:08,943 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 22:19:08,951 INFO L191 MainTranslator]: Completed pre-run [2018-12-01 22:19:09,030 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 22:19:09,045 INFO L195 MainTranslator]: Completed translation [2018-12-01 22:19:09,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:19:09 WrapperNode [2018-12-01 22:19:09,046 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-01 22:19:09,046 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-01 22:19:09,046 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-01 22:19:09,046 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-01 22:19:09,052 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:19:09" (1/1) ... [2018-12-01 22:19:09,061 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:19:09" (1/1) ... [2018-12-01 22:19:09,067 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-01 22:19:09,067 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-01 22:19:09,067 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-01 22:19:09,067 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-01 22:19:09,073 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:19:09" (1/1) ... [2018-12-01 22:19:09,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:19:09" (1/1) ... [2018-12-01 22:19:09,075 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:19:09" (1/1) ... [2018-12-01 22:19:09,076 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:19:09" (1/1) ... [2018-12-01 22:19:09,082 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:19:09" (1/1) ... [2018-12-01 22:19:09,086 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:19:09" (1/1) ... [2018-12-01 22:19:09,087 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:19:09" (1/1) ... [2018-12-01 22:19:09,089 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-01 22:19:09,089 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-01 22:19:09,089 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-01 22:19:09,089 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-01 22:19:09,090 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:19:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4f73ec81-1b58-47ad-ac18-ff68807dad38/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 [2018-12-01 22:19:09,122 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-01 22:19:09,123 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-01 22:19:09,123 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2018-12-01 22:19:09,123 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2018-12-01 22:19:09,123 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-01 22:19:09,123 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-01 22:19:09,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-01 22:19:09,123 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-01 22:19:09,123 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-01 22:19:09,123 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-01 22:19:09,123 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-01 22:19:09,123 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-01 22:19:09,123 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-01 22:19:09,123 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-01 22:19:09,123 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-01 22:19:09,124 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-01 22:19:09,124 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-01 22:19:09,124 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-01 22:19:09,124 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-01 22:19:09,124 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-01 22:19:09,124 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-01 22:19:09,124 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-12-01 22:19:09,124 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-12-01 22:19:09,124 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-01 22:19:09,124 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-01 22:19:09,124 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-01 22:19:09,124 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-01 22:19:09,124 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-01 22:19:09,124 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-01 22:19:09,124 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-01 22:19:09,124 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-01 22:19:09,125 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2018-12-01 22:19:09,125 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2018-12-01 22:19:09,125 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-01 22:19:09,125 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-01 22:19:09,125 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-01 22:19:09,125 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-01 22:19:09,125 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-01 22:19:09,125 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-01 22:19:09,125 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2018-12-01 22:19:09,125 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2018-12-01 22:19:09,125 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-01 22:19:09,125 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-01 22:19:09,125 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-01 22:19:09,125 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-01 22:19:09,125 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-12-01 22:19:09,126 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-12-01 22:19:09,126 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-01 22:19:09,126 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-01 22:19:09,126 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2018-12-01 22:19:09,126 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2018-12-01 22:19:09,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-01 22:19:09,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-01 22:19:09,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-01 22:19:09,126 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-01 22:19:09,126 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-01 22:19:09,126 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-01 22:19:09,126 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-01 22:19:09,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-01 22:19:09,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-01 22:19:09,456 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-01 22:19:09,456 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-01 22:19:09,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 10:19:09 BoogieIcfgContainer [2018-12-01 22:19:09,456 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-01 22:19:09,457 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-01 22:19:09,457 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-01 22:19:09,460 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-01 22:19:09,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 10:19:08" (1/3) ... [2018-12-01 22:19:09,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b28e743 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 10:19:09, skipping insertion in model container [2018-12-01 22:19:09,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:19:09" (2/3) ... [2018-12-01 22:19:09,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b28e743 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 10:19:09, skipping insertion in model container [2018-12-01 22:19:09,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 10:19:09" (3/3) ... [2018-12-01 22:19:09,463 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product46_false-unreach-call_false-termination.cil.c [2018-12-01 22:19:09,471 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-01 22:19:09,478 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-01 22:19:09,492 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-01 22:19:09,515 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-01 22:19:09,515 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-01 22:19:09,515 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-01 22:19:09,515 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-01 22:19:09,515 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-01 22:19:09,516 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-01 22:19:09,516 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-01 22:19:09,516 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-01 22:19:09,530 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states. [2018-12-01 22:19:09,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-01 22:19:09,536 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:19:09,536 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] [2018-12-01 22:19:09,538 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 22:19:09,542 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:19:09,542 INFO L82 PathProgramCache]: Analyzing trace with hash 1229412356, now seen corresponding path program 1 times [2018-12-01 22:19:09,543 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-01 22:19:09,572 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:19:09,572 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:19:09,572 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:19:09,572 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-01 22:19:09,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:19:09,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:19:09,701 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 22:19:09,701 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-01 22:19:09,701 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-01 22:19:09,705 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-01 22:19:09,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-01 22:19:09,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-01 22:19:09,714 INFO L87 Difference]: Start difference. First operand 150 states. Second operand 2 states. [2018-12-01 22:19:09,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 22:19:09,737 INFO L93 Difference]: Finished difference Result 274 states and 337 transitions. [2018-12-01 22:19:09,737 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-01 22:19:09,738 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-01 22:19:09,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 22:19:09,745 INFO L225 Difference]: With dead ends: 274 [2018-12-01 22:19:09,745 INFO L226 Difference]: Without dead ends: 137 [2018-12-01 22:19:09,747 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 [2018-12-01 22:19:09,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2018-12-01 22:19:09,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2018-12-01 22:19:09,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2018-12-01 22:19:09,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 160 transitions. [2018-12-01 22:19:09,778 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 160 transitions. Word has length 46 [2018-12-01 22:19:09,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 22:19:09,778 INFO L480 AbstractCegarLoop]: Abstraction has 137 states and 160 transitions. [2018-12-01 22:19:09,779 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-01 22:19:09,779 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 160 transitions. [2018-12-01 22:19:09,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-01 22:19:09,780 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:19:09,780 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] [2018-12-01 22:19:09,781 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 22:19:09,781 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:19:09,781 INFO L82 PathProgramCache]: Analyzing trace with hash 1836920354, now seen corresponding path program 1 times [2018-12-01 22:19:09,781 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-01 22:19:09,781 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:19:09,782 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:19:09,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:19:09,782 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-01 22:19:09,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:19:09,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:19:09,828 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 22:19:09,829 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-01 22:19:09,829 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-01 22:19:09,830 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-01 22:19:09,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 22:19:09,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 22:19:09,830 INFO L87 Difference]: Start difference. First operand 137 states and 160 transitions. Second operand 3 states. [2018-12-01 22:19:09,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 22:19:09,846 INFO L93 Difference]: Finished difference Result 219 states and 255 transitions. [2018-12-01 22:19:09,847 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 22:19:09,847 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-01 22:19:09,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 22:19:09,848 INFO L225 Difference]: With dead ends: 219 [2018-12-01 22:19:09,848 INFO L226 Difference]: Without dead ends: 128 [2018-12-01 22:19:09,849 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 [2018-12-01 22:19:09,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2018-12-01 22:19:09,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2018-12-01 22:19:09,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2018-12-01 22:19:09,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 148 transitions. [2018-12-01 22:19:09,860 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 148 transitions. Word has length 47 [2018-12-01 22:19:09,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 22:19:09,860 INFO L480 AbstractCegarLoop]: Abstraction has 128 states and 148 transitions. [2018-12-01 22:19:09,860 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-01 22:19:09,860 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 148 transitions. [2018-12-01 22:19:09,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-12-01 22:19:09,861 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:19:09,861 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] [2018-12-01 22:19:09,861 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 22:19:09,861 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:19:09,861 INFO L82 PathProgramCache]: Analyzing trace with hash -589628054, now seen corresponding path program 1 times [2018-12-01 22:19:09,861 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-01 22:19:09,862 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:19:09,862 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:19:09,862 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:19:09,862 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-01 22:19:09,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:19:09,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:19:09,955 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 22:19:09,955 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-01 22:19:09,955 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-01 22:19:09,956 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-01 22:19:09,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-01 22:19:09,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-01 22:19:09,956 INFO L87 Difference]: Start difference. First operand 128 states and 148 transitions. Second operand 7 states. [2018-12-01 22:19:10,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 22:19:10,138 INFO L93 Difference]: Finished difference Result 232 states and 273 transitions. [2018-12-01 22:19:10,138 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-01 22:19:10,138 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2018-12-01 22:19:10,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 22:19:10,139 INFO L225 Difference]: With dead ends: 232 [2018-12-01 22:19:10,139 INFO L226 Difference]: Without dead ends: 128 [2018-12-01 22:19:10,140 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 [2018-12-01 22:19:10,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2018-12-01 22:19:10,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2018-12-01 22:19:10,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2018-12-01 22:19:10,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 147 transitions. [2018-12-01 22:19:10,151 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 147 transitions. Word has length 52 [2018-12-01 22:19:10,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 22:19:10,151 INFO L480 AbstractCegarLoop]: Abstraction has 128 states and 147 transitions. [2018-12-01 22:19:10,151 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-01 22:19:10,152 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 147 transitions. [2018-12-01 22:19:10,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-12-01 22:19:10,153 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:19:10,153 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] [2018-12-01 22:19:10,154 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 22:19:10,154 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:19:10,154 INFO L82 PathProgramCache]: Analyzing trace with hash -555014520, now seen corresponding path program 1 times [2018-12-01 22:19:10,154 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-01 22:19:10,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:19:10,155 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:19:10,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:19:10,155 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-01 22:19:10,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:19:10,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:19:10,216 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 22:19:10,216 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-01 22:19:10,217 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-01 22:19:10,217 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-01 22:19:10,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-01 22:19:10,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-01 22:19:10,217 INFO L87 Difference]: Start difference. First operand 128 states and 147 transitions. Second operand 5 states. [2018-12-01 22:19:10,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 22:19:10,499 INFO L93 Difference]: Finished difference Result 341 states and 406 transitions. [2018-12-01 22:19:10,499 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-01 22:19:10,499 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 65 [2018-12-01 22:19:10,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 22:19:10,501 INFO L225 Difference]: With dead ends: 341 [2018-12-01 22:19:10,501 INFO L226 Difference]: Without dead ends: 237 [2018-12-01 22:19:10,502 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-01 22:19:10,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2018-12-01 22:19:10,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 218. [2018-12-01 22:19:10,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2018-12-01 22:19:10,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 245 transitions. [2018-12-01 22:19:10,526 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 245 transitions. Word has length 65 [2018-12-01 22:19:10,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 22:19:10,527 INFO L480 AbstractCegarLoop]: Abstraction has 218 states and 245 transitions. [2018-12-01 22:19:10,527 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-01 22:19:10,527 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 245 transitions. [2018-12-01 22:19:10,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-12-01 22:19:10,528 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:19:10,528 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] [2018-12-01 22:19:10,528 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 22:19:10,528 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:19:10,528 INFO L82 PathProgramCache]: Analyzing trace with hash 1756458939, now seen corresponding path program 1 times [2018-12-01 22:19:10,528 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-01 22:19:10,529 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:19:10,529 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:19:10,529 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:19:10,529 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-01 22:19:10,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:19:10,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:19:10,598 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 22:19:10,598 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-01 22:19:10,598 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-01 22:19:10,598 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-01 22:19:10,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-01 22:19:10,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-12-01 22:19:10,599 INFO L87 Difference]: Start difference. First operand 218 states and 245 transitions. Second operand 10 states. [2018-12-01 22:19:10,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 22:19:10,890 INFO L93 Difference]: Finished difference Result 712 states and 867 transitions. [2018-12-01 22:19:10,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-01 22:19:10,891 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 79 [2018-12-01 22:19:10,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 22:19:10,893 INFO L225 Difference]: With dead ends: 712 [2018-12-01 22:19:10,893 INFO L226 Difference]: Without dead ends: 518 [2018-12-01 22:19:10,894 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2018-12-01 22:19:10,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2018-12-01 22:19:10,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 508. [2018-12-01 22:19:10,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 508 states. [2018-12-01 22:19:10,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 589 transitions. [2018-12-01 22:19:10,920 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 589 transitions. Word has length 79 [2018-12-01 22:19:10,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 22:19:10,920 INFO L480 AbstractCegarLoop]: Abstraction has 508 states and 589 transitions. [2018-12-01 22:19:10,920 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-01 22:19:10,920 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 589 transitions. [2018-12-01 22:19:10,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-12-01 22:19:10,922 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:19:10,923 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 22:19:10,923 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 22:19:10,923 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:19:10,923 INFO L82 PathProgramCache]: Analyzing trace with hash -330804201, now seen corresponding path program 1 times [2018-12-01 22:19:10,923 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-01 22:19:10,924 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:19:10,924 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:19:10,924 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:19:10,924 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-01 22:19:10,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:19:10,981 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-12-01 22:19:10,981 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 22:19:10,981 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-01 22:19:10,982 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 152 with the following transitions: [2018-12-01 22:19:10,983 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [45], [55], [56], [57], [58], [61], [63], [64], [65], [66], [67], [70], [72], [73], [76], [78], [81], [88], [91], [93], [102], [106], [110], [113], [118], [124], [126], [132], [135], [145], [146], [147], [148], [149], [151], [156], [159], [160], [162], [165], [169], [170], [171], [172], [180], [181], [184], [187], [191], [197], [226], [230], [231], [239], [243], [244], [247], [248], [249], [250], [251], [253], [254], [255], [256], [257], [258], [259], [260], [261], [263], [264], [265], [266], [271], [273], [274], [275], [276], [277], [278], [281], [282], [283], [284], [289], [290], [293], [294], [295], [296], [297], [298], [299], [300], [301], [302], [303], [304], [309], [310], [311] [2018-12-01 22:19:11,004 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-01 22:19:11,005 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-01 22:19:11,215 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-01 22:19:11,216 INFO L272 AbstractInterpreter]: Visited 53 different actions 53 times. Never merged. Never widened. Performed 2057 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2057 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-12-01 22:19:11,223 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:19:11,223 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-01 22:19:11,402 INFO L227 lantSequenceWeakener]: Weakened 68 states. On average, predicates are now at 96.42% of their original sizes. [2018-12-01 22:19:11,402 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-01 22:19:11,437 INFO L418 sIntCurrentIteration]: We unified 150 AI predicates to 150 [2018-12-01 22:19:11,437 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-01 22:19:11,438 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-01 22:19:11,438 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [6] total 12 [2018-12-01 22:19:11,438 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-01 22:19:11,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-01 22:19:11,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-01 22:19:11,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-01 22:19:11,439 INFO L87 Difference]: Start difference. First operand 508 states and 589 transitions. Second operand 8 states. [2018-12-01 22:19:12,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 22:19:12,370 INFO L93 Difference]: Finished difference Result 1202 states and 1435 transitions. [2018-12-01 22:19:12,370 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-01 22:19:12,370 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 151 [2018-12-01 22:19:12,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 22:19:12,372 INFO L225 Difference]: With dead ends: 1202 [2018-12-01 22:19:12,372 INFO L226 Difference]: Without dead ends: 718 [2018-12-01 22:19:12,373 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 150 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-01 22:19:12,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2018-12-01 22:19:12,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 701. [2018-12-01 22:19:12,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 701 states. [2018-12-01 22:19:12,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 813 transitions. [2018-12-01 22:19:12,396 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 813 transitions. Word has length 151 [2018-12-01 22:19:12,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 22:19:12,397 INFO L480 AbstractCegarLoop]: Abstraction has 701 states and 813 transitions. [2018-12-01 22:19:12,397 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-01 22:19:12,397 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 813 transitions. [2018-12-01 22:19:12,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-12-01 22:19:12,399 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:19:12,399 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 22:19:12,399 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 22:19:12,399 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:19:12,400 INFO L82 PathProgramCache]: Analyzing trace with hash -1754299083, now seen corresponding path program 1 times [2018-12-01 22:19:12,400 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-01 22:19:12,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:19:12,400 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:19:12,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:19:12,400 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-01 22:19:12,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:19:12,470 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2018-12-01 22:19:12,470 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 22:19:12,470 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-01 22:19:12,470 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 143 with the following transitions: [2018-12-01 22:19:12,470 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [48], [55], [56], [57], [58], [67], [70], [72], [73], [88], [91], [92], [93], [102], [106], [110], [113], [118], [121], [124], [126], [132], [135], [147], [148], [160], [162], [165], [169], [170], [171], [172], [177], [179], [187], [191], [197], [231], [239], [243], [244], [247], [248], [249], [250], [251], [253], [254], [255], [256], [257], [258], [259], [260], [261], [263], [264], [267], [268], [271], [281], [282], [283], [284], [285], [286], [289], [290], [297], [298], [301], [302], [303], [304], [309], [310], [311] [2018-12-01 22:19:12,472 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-01 22:19:12,472 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-01 22:19:12,654 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-01 22:19:12,654 INFO L272 AbstractInterpreter]: Visited 56 different actions 73 times. Merged at 4 different actions 4 times. Never widened. Performed 4715 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4715 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-12-01 22:19:12,655 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:19:12,656 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-01 22:19:12,802 INFO L227 lantSequenceWeakener]: Weakened 80 states. On average, predicates are now at 96.96% of their original sizes. [2018-12-01 22:19:12,802 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-01 22:19:12,845 INFO L418 sIntCurrentIteration]: We unified 141 AI predicates to 141 [2018-12-01 22:19:12,845 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-01 22:19:12,846 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-01 22:19:12,846 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [7] total 16 [2018-12-01 22:19:12,846 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-01 22:19:12,846 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-01 22:19:12,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-01 22:19:12,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-12-01 22:19:12,846 INFO L87 Difference]: Start difference. First operand 701 states and 813 transitions. Second operand 11 states. [2018-12-01 22:19:13,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 22:19:13,959 INFO L93 Difference]: Finished difference Result 1579 states and 1865 transitions. [2018-12-01 22:19:13,959 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-01 22:19:13,959 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 142 [2018-12-01 22:19:13,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 22:19:13,962 INFO L225 Difference]: With dead ends: 1579 [2018-12-01 22:19:13,962 INFO L226 Difference]: Without dead ends: 1095 [2018-12-01 22:19:13,963 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 141 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-12-01 22:19:13,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1095 states. [2018-12-01 22:19:13,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1095 to 1081. [2018-12-01 22:19:13,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1081 states. [2018-12-01 22:19:13,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1081 states to 1081 states and 1253 transitions. [2018-12-01 22:19:13,994 INFO L78 Accepts]: Start accepts. Automaton has 1081 states and 1253 transitions. Word has length 142 [2018-12-01 22:19:13,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 22:19:13,994 INFO L480 AbstractCegarLoop]: Abstraction has 1081 states and 1253 transitions. [2018-12-01 22:19:13,994 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-01 22:19:13,994 INFO L276 IsEmpty]: Start isEmpty. Operand 1081 states and 1253 transitions. [2018-12-01 22:19:13,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-12-01 22:19:13,996 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:19:13,996 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 22:19:13,996 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 22:19:13,996 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:19:13,996 INFO L82 PathProgramCache]: Analyzing trace with hash -1736284197, now seen corresponding path program 1 times [2018-12-01 22:19:13,996 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-01 22:19:13,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:19:13,997 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:19:13,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:19:13,997 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-01 22:19:14,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:19:14,048 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-12-01 22:19:14,048 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 22:19:14,048 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-01 22:19:14,048 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 148 with the following transitions: [2018-12-01 22:19:14,048 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [45], [55], [56], [57], [58], [61], [63], [64], [65], [66], [67], [70], [72], [73], [76], [78], [81], [88], [91], [93], [102], [106], [110], [116], [118], [121], [124], [126], [132], [135], [145], [146], [147], [148], [149], [151], [156], [159], [160], [162], [165], [169], [170], [171], [172], [177], [179], [180], [181], [184], [187], [191], [197], [226], [230], [231], [244], [247], [248], [249], [250], [251], [253], [254], [255], [256], [257], [258], [259], [260], [261], [263], [264], [265], [266], [271], [273], [274], [275], [276], [277], [278], [281], [282], [285], [286], [289], [290], [293], [294], [295], [296], [297], [298], [299], [300], [301], [302], [303], [304], [309], [310], [311] [2018-12-01 22:19:14,050 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-01 22:19:14,050 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-01 22:19:14,204 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-01 22:19:14,204 INFO L272 AbstractInterpreter]: Visited 63 different actions 91 times. Merged at 4 different actions 4 times. Never widened. Performed 4671 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4671 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-12-01 22:19:14,206 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:19:14,207 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-01 22:19:14,373 INFO L227 lantSequenceWeakener]: Weakened 73 states. On average, predicates are now at 96.44% of their original sizes. [2018-12-01 22:19:14,373 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-01 22:19:14,454 INFO L418 sIntCurrentIteration]: We unified 146 AI predicates to 146 [2018-12-01 22:19:14,454 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-01 22:19:14,454 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-01 22:19:14,455 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2018-12-01 22:19:14,455 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-01 22:19:14,455 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-12-01 22:19:14,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-12-01 22:19:14,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2018-12-01 22:19:14,456 INFO L87 Difference]: Start difference. First operand 1081 states and 1253 transitions. Second operand 16 states. [2018-12-01 22:19:16,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 22:19:16,170 INFO L93 Difference]: Finished difference Result 1974 states and 2304 transitions. [2018-12-01 22:19:16,170 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-12-01 22:19:16,170 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 147 [2018-12-01 22:19:16,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 22:19:16,174 INFO L225 Difference]: With dead ends: 1974 [2018-12-01 22:19:16,174 INFO L226 Difference]: Without dead ends: 917 [2018-12-01 22:19:16,176 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 161 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=169, Invalid=761, Unknown=0, NotChecked=0, Total=930 [2018-12-01 22:19:16,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2018-12-01 22:19:16,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 917. [2018-12-01 22:19:16,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 917 states. [2018-12-01 22:19:16,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1046 transitions. [2018-12-01 22:19:16,211 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1046 transitions. Word has length 147 [2018-12-01 22:19:16,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 22:19:16,211 INFO L480 AbstractCegarLoop]: Abstraction has 917 states and 1046 transitions. [2018-12-01 22:19:16,211 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-12-01 22:19:16,212 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1046 transitions. [2018-12-01 22:19:16,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-12-01 22:19:16,213 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:19:16,213 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 22:19:16,213 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 22:19:16,213 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:19:16,213 INFO L82 PathProgramCache]: Analyzing trace with hash 365069212, now seen corresponding path program 1 times [2018-12-01 22:19:16,214 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-01 22:19:16,214 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:19:16,214 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:19:16,214 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:19:16,214 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-01 22:19:16,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:19:16,253 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-12-01 22:19:16,253 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 22:19:16,253 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-01 22:19:16,253 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 156 with the following transitions: [2018-12-01 22:19:16,254 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [45], [55], [56], [57], [58], [61], [63], [64], [65], [66], [67], [71], [72], [73], [76], [78], [81], [88], [91], [93], [102], [106], [110], [113], [118], [121], [124], [126], [132], [135], [145], [146], [147], [148], [149], [151], [156], [159], [160], [162], [165], [169], [170], [171], [172], [177], [179], [180], [181], [184], [187], [191], [197], [226], [230], [231], [239], [243], [244], [247], [248], [249], [250], [251], [253], [254], [255], [256], [257], [258], [259], [260], [261], [263], [264], [265], [266], [271], [273], [274], [275], [276], [277], [278], [281], [282], [283], [284], [285], [286], [289], [290], [293], [294], [295], [296], [297], [298], [299], [300], [301], [302], [303], [304], [309], [310], [311] [2018-12-01 22:19:16,255 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-01 22:19:16,255 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-01 22:19:16,424 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-01 22:19:16,424 INFO L272 AbstractInterpreter]: Visited 67 different actions 95 times. Merged at 4 different actions 4 times. Never widened. Performed 4799 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4799 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-12-01 22:19:16,427 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:19:16,427 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-01 22:19:16,549 INFO L227 lantSequenceWeakener]: Weakened 81 states. On average, predicates are now at 96.49% of their original sizes. [2018-12-01 22:19:16,549 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-01 22:19:16,628 INFO L418 sIntCurrentIteration]: We unified 154 AI predicates to 154 [2018-12-01 22:19:16,628 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-01 22:19:16,629 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-01 22:19:16,629 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [5] total 18 [2018-12-01 22:19:16,629 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-01 22:19:16,629 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-12-01 22:19:16,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-12-01 22:19:16,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2018-12-01 22:19:16,629 INFO L87 Difference]: Start difference. First operand 917 states and 1046 transitions. Second operand 15 states. [2018-12-01 22:19:19,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 22:19:19,114 INFO L93 Difference]: Finished difference Result 2123 states and 2515 transitions. [2018-12-01 22:19:19,114 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-12-01 22:19:19,114 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 155 [2018-12-01 22:19:19,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 22:19:19,118 INFO L225 Difference]: With dead ends: 2123 [2018-12-01 22:19:19,118 INFO L226 Difference]: Without dead ends: 1409 [2018-12-01 22:19:19,119 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 167 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=151, Invalid=605, Unknown=0, NotChecked=0, Total=756 [2018-12-01 22:19:19,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1409 states. [2018-12-01 22:19:19,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1409 to 1383. [2018-12-01 22:19:19,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1383 states. [2018-12-01 22:19:19,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1383 states to 1383 states and 1575 transitions. [2018-12-01 22:19:19,156 INFO L78 Accepts]: Start accepts. Automaton has 1383 states and 1575 transitions. Word has length 155 [2018-12-01 22:19:19,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 22:19:19,157 INFO L480 AbstractCegarLoop]: Abstraction has 1383 states and 1575 transitions. [2018-12-01 22:19:19,157 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-12-01 22:19:19,157 INFO L276 IsEmpty]: Start isEmpty. Operand 1383 states and 1575 transitions. [2018-12-01 22:19:19,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-12-01 22:19:19,159 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:19:19,159 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 22:19:19,159 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 22:19:19,159 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:19:19,159 INFO L82 PathProgramCache]: Analyzing trace with hash 608653924, now seen corresponding path program 1 times [2018-12-01 22:19:19,159 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-01 22:19:19,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:19:19,160 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:19:19,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:19:19,160 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-01 22:19:19,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:19:19,244 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 18 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-12-01 22:19:19,244 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 22:19:19,244 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-01 22:19:19,244 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 152 with the following transitions: [2018-12-01 22:19:19,244 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [45], [55], [56], [57], [58], [61], [63], [64], [65], [66], [67], [71], [72], [73], [76], [78], [81], [88], [91], [93], [102], [106], [110], [113], [116], [118], [121], [124], [126], [132], [135], [145], [146], [147], [148], [149], [151], [156], [159], [160], [162], [167], [169], [170], [171], [172], [177], [179], [180], [181], [184], [187], [191], [197], [226], [230], [231], [239], [243], [244], [247], [248], [249], [250], [251], [253], [254], [255], [256], [257], [258], [259], [260], [261], [263], [264], [265], [266], [271], [273], [274], [275], [276], [277], [278], [281], [282], [283], [284], [285], [286], [289], [290], [293], [294], [295], [296], [297], [298], [299], [300], [301], [302], [303], [304], [309], [310], [311] [2018-12-01 22:19:19,246 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-01 22:19:19,246 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-01 22:19:20,395 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-01 22:19:20,395 INFO L272 AbstractInterpreter]: Visited 124 different actions 949 times. Merged at 21 different actions 86 times. Never widened. Performed 37017 root evaluator evaluations with a maximum evaluation depth of 3. Performed 37017 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 18 fixpoints after 6 different actions. Largest state had 133 variables. [2018-12-01 22:19:20,397 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:19:20,398 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-01 22:19:20,398 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 22:19:20,398 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4f73ec81-1b58-47ad-ac18-ff68807dad38/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-01 22:19:20,404 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:19:20,404 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-01 22:19:20,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:19:20,481 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 22:19:20,590 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-12-01 22:19:20,591 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-01 22:19:21,209 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 18 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-12-01 22:19:21,225 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-01 22:19:21,225 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 9] total 25 [2018-12-01 22:19:21,225 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-01 22:19:21,226 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-01 22:19:21,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-01 22:19:21,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-12-01 22:19:21,226 INFO L87 Difference]: Start difference. First operand 1383 states and 1575 transitions. Second operand 8 states. [2018-12-01 22:19:21,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 22:19:21,371 INFO L93 Difference]: Finished difference Result 2603 states and 3018 transitions. [2018-12-01 22:19:21,372 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-01 22:19:21,372 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 151 [2018-12-01 22:19:21,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 22:19:21,376 INFO L225 Difference]: With dead ends: 2603 [2018-12-01 22:19:21,376 INFO L226 Difference]: Without dead ends: 1790 [2018-12-01 22:19:21,379 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 284 SyntacticMatches, 8 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-12-01 22:19:21,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1790 states. [2018-12-01 22:19:21,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1790 to 1785. [2018-12-01 22:19:21,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1785 states. [2018-12-01 22:19:21,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1785 states to 1785 states and 2024 transitions. [2018-12-01 22:19:21,431 INFO L78 Accepts]: Start accepts. Automaton has 1785 states and 2024 transitions. Word has length 151 [2018-12-01 22:19:21,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 22:19:21,431 INFO L480 AbstractCegarLoop]: Abstraction has 1785 states and 2024 transitions. [2018-12-01 22:19:21,431 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-01 22:19:21,432 INFO L276 IsEmpty]: Start isEmpty. Operand 1785 states and 2024 transitions. [2018-12-01 22:19:21,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-12-01 22:19:21,433 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:19:21,433 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 22:19:21,433 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 22:19:21,433 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:19:21,434 INFO L82 PathProgramCache]: Analyzing trace with hash 1474153568, now seen corresponding path program 1 times [2018-12-01 22:19:21,434 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-01 22:19:21,434 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:19:21,434 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:19:21,434 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:19:21,434 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-01 22:19:21,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:19:21,504 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-12-01 22:19:21,504 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 22:19:21,504 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-01 22:19:21,504 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-01 22:19:21,504 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-01 22:19:21,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-01 22:19:21,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-12-01 22:19:21,505 INFO L87 Difference]: Start difference. First operand 1785 states and 2024 transitions. Second operand 9 states. [2018-12-01 22:19:21,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 22:19:21,866 INFO L93 Difference]: Finished difference Result 2751 states and 3151 transitions. [2018-12-01 22:19:21,866 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-12-01 22:19:21,866 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 147 [2018-12-01 22:19:21,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 22:19:21,870 INFO L225 Difference]: With dead ends: 2751 [2018-12-01 22:19:21,870 INFO L226 Difference]: Without dead ends: 1692 [2018-12-01 22:19:21,872 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2018-12-01 22:19:21,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1692 states. [2018-12-01 22:19:21,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1692 to 1519. [2018-12-01 22:19:21,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1519 states. [2018-12-01 22:19:21,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1519 states to 1519 states and 1710 transitions. [2018-12-01 22:19:21,915 INFO L78 Accepts]: Start accepts. Automaton has 1519 states and 1710 transitions. Word has length 147 [2018-12-01 22:19:21,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 22:19:21,916 INFO L480 AbstractCegarLoop]: Abstraction has 1519 states and 1710 transitions. [2018-12-01 22:19:21,916 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-01 22:19:21,916 INFO L276 IsEmpty]: Start isEmpty. Operand 1519 states and 1710 transitions. [2018-12-01 22:19:21,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-12-01 22:19:21,917 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:19:21,917 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 22:19:21,917 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 22:19:21,917 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:19:21,918 INFO L82 PathProgramCache]: Analyzing trace with hash -1851944996, now seen corresponding path program 2 times [2018-12-01 22:19:21,918 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-01 22:19:21,918 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:19:21,918 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:19:21,918 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:19:21,918 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-01 22:19:21,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:19:21,965 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-12-01 22:19:21,965 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 22:19:21,965 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-01 22:19:21,965 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-01 22:19:21,965 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-01 22:19:21,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-01 22:19:21,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-01 22:19:21,965 INFO L87 Difference]: Start difference. First operand 1519 states and 1710 transitions. Second operand 6 states. [2018-12-01 22:19:22,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 22:19:22,084 INFO L93 Difference]: Finished difference Result 1530 states and 1721 transitions. [2018-12-01 22:19:22,085 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-01 22:19:22,085 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 151 [2018-12-01 22:19:22,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 22:19:22,089 INFO L225 Difference]: With dead ends: 1530 [2018-12-01 22:19:22,089 INFO L226 Difference]: Without dead ends: 1527 [2018-12-01 22:19:22,090 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-12-01 22:19:22,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1527 states. [2018-12-01 22:19:22,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1527 to 1519. [2018-12-01 22:19:22,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1519 states. [2018-12-01 22:19:22,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1519 states to 1519 states and 1708 transitions. [2018-12-01 22:19:22,145 INFO L78 Accepts]: Start accepts. Automaton has 1519 states and 1708 transitions. Word has length 151 [2018-12-01 22:19:22,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 22:19:22,146 INFO L480 AbstractCegarLoop]: Abstraction has 1519 states and 1708 transitions. [2018-12-01 22:19:22,146 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-01 22:19:22,146 INFO L276 IsEmpty]: Start isEmpty. Operand 1519 states and 1708 transitions. [2018-12-01 22:19:22,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-12-01 22:19:22,148 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:19:22,148 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 22:19:22,148 INFO L423 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 22:19:22,148 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:19:22,148 INFO L82 PathProgramCache]: Analyzing trace with hash -1000939267, now seen corresponding path program 1 times [2018-12-01 22:19:22,148 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-01 22:19:22,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:19:22,149 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 22:19:22,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:19:22,149 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-01 22:19:22,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:19:22,240 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 19 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-12-01 22:19:22,240 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 22:19:22,240 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-01 22:19:22,240 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 152 with the following transitions: [2018-12-01 22:19:22,240 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [45], [52], [55], [56], [57], [58], [61], [63], [64], [67], [71], [72], [73], [76], [78], [84], [88], [91], [92], [93], [102], [106], [110], [113], [116], [118], [124], [126], [132], [135], [145], [146], [147], [148], [149], [151], [156], [159], [160], [162], [167], [169], [170], [171], [172], [180], [181], [184], [187], [191], [197], [226], [230], [231], [239], [243], [244], [247], [248], [249], [250], [251], [253], [254], [255], [256], [257], [258], [259], [260], [261], [263], [264], [265], [266], [269], [270], [271], [273], [274], [275], [276], [279], [280], [281], [282], [283], [284], [289], [290], [293], [294], [295], [296], [297], [298], [299], [300], [301], [302], [303], [304], [309], [310], [311] [2018-12-01 22:19:22,241 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-01 22:19:22,242 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-01 22:19:22,826 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-01 22:19:22,826 INFO L272 AbstractInterpreter]: Visited 121 different actions 581 times. Merged at 16 different actions 46 times. Never widened. Performed 18442 root evaluator evaluations with a maximum evaluation depth of 3. Performed 18442 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 9 fixpoints after 3 different actions. Largest state had 133 variables. [2018-12-01 22:19:22,830 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:19:22,830 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-01 22:19:22,831 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 22:19:22,831 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4f73ec81-1b58-47ad-ac18-ff68807dad38/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-01 22:19:22,836 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:19:22,836 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-01 22:19:22,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:19:22,898 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 22:19:22,957 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 17 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:19:22,957 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-01 22:19:23,119 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 19 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-12-01 22:19:23,139 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-01 22:19:23,139 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2018-12-01 22:19:23,140 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-01 22:19:23,140 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-12-01 22:19:23,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-12-01 22:19:23,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2018-12-01 22:19:23,140 INFO L87 Difference]: Start difference. First operand 1519 states and 1708 transitions. Second operand 15 states. [2018-12-01 22:19:24,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 22:19:24,022 INFO L93 Difference]: Finished difference Result 2589 states and 3201 transitions. [2018-12-01 22:19:24,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-12-01 22:19:24,022 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 151 [2018-12-01 22:19:24,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 22:19:24,028 INFO L225 Difference]: With dead ends: 2589 [2018-12-01 22:19:24,028 INFO L226 Difference]: Without dead ends: 2010 [2018-12-01 22:19:24,030 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 294 SyntacticMatches, 6 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=243, Invalid=687, Unknown=0, NotChecked=0, Total=930 [2018-12-01 22:19:24,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2010 states. [2018-12-01 22:19:24,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2010 to 1556. [2018-12-01 22:19:24,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1556 states. [2018-12-01 22:19:24,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 1765 transitions. [2018-12-01 22:19:24,097 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 1765 transitions. Word has length 151 [2018-12-01 22:19:24,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 22:19:24,098 INFO L480 AbstractCegarLoop]: Abstraction has 1556 states and 1765 transitions. [2018-12-01 22:19:24,098 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-12-01 22:19:24,098 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 1765 transitions. [2018-12-01 22:19:24,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2018-12-01 22:19:24,100 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:19:24,101 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 22:19:24,101 INFO L423 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 22:19:24,101 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:19:24,101 INFO L82 PathProgramCache]: Analyzing trace with hash 1831404093, now seen corresponding path program 2 times [2018-12-01 22:19:24,101 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-01 22:19:24,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:19:24,102 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:19:24,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:19:24,102 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-01 22:19:24,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 22:19:24,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 22:19:24,229 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-01 22:19:24,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 10:19:24 BoogieIcfgContainer [2018-12-01 22:19:24,377 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-01 22:19:24,377 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-01 22:19:24,377 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-01 22:19:24,377 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-01 22:19:24,378 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 10:19:09" (3/4) ... [2018-12-01 22:19:24,379 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-01 22:19:24,489 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_4f73ec81-1b58-47ad-ac18-ff68807dad38/bin-2019/utaipan/witness.graphml [2018-12-01 22:19:24,489 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-01 22:19:24,490 INFO L168 Benchmark]: Toolchain (without parser) took 15739.36 ms. Allocated memory was 1.0 GB in the beginning and 1.9 GB in the end (delta: 861.9 MB). Free memory was 948.1 MB in the beginning and 1.4 GB in the end (delta: -420.2 MB). Peak memory consumption was 441.8 MB. Max. memory is 11.5 GB. [2018-12-01 22:19:24,491 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 22:19:24,491 INFO L168 Benchmark]: CACSL2BoogieTranslator took 294.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -167.5 MB). Peak memory consumption was 28.9 MB. Max. memory is 11.5 GB. [2018-12-01 22:19:24,491 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.92 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. [2018-12-01 22:19:24,491 INFO L168 Benchmark]: Boogie Preprocessor took 22.00 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-01 22:19:24,491 INFO L168 Benchmark]: RCFGBuilder took 367.18 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: 51.9 MB). Peak memory consumption was 51.9 MB. Max. memory is 11.5 GB. [2018-12-01 22:19:24,491 INFO L168 Benchmark]: TraceAbstraction took 14919.71 ms. Allocated memory was 1.2 GB in the beginning and 1.9 GB in the end (delta: 738.2 MB). Free memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: -388.0 MB). Peak memory consumption was 350.2 MB. Max. memory is 11.5 GB. [2018-12-01 22:19:24,491 INFO L168 Benchmark]: Witness Printer took 112.11 ms. Allocated memory is still 1.9 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 78.1 MB). Peak memory consumption was 78.1 MB. Max. memory is 11.5 GB. [2018-12-01 22:19:24,492 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 294.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -167.5 MB). Peak memory consumption was 28.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.92 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 22.00 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 367.18 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: 51.9 MB). Peak memory consumption was 51.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 14919.71 ms. Allocated memory was 1.2 GB in the beginning and 1.9 GB in the end (delta: 738.2 MB). Free memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: -388.0 MB). Peak memory consumption was 350.2 MB. Max. memory is 11.5 GB. * Witness Printer took 112.11 ms. Allocated memory is still 1.9 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 78.1 MB). Peak memory consumption was 78.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 543]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L342] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L555] int pumpRunning = 0; [L556] int systemActive = 1; [L758] int waterLevel = 1; [L759] 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] [L945] int retValue_acc ; [L948] retValue_acc = 1 [L949] 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] [L853] int splverifierCounter ; [L854] int tmp ; [L855] int tmp___0 ; [L856] int tmp___1 ; [L857] int tmp___2 ; [L860] 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] [L862] 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] [L864] 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] [L870] tmp = __VERIFIER_nondet_int() [L872] 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] [L874] 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] [L776] COND TRUE waterLevel < 2 [L777] 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] [L874] 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] [L880] tmp___0 = __VERIFIER_nondet_int() [L882] COND FALSE !(\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=0, waterLevel=2] [L890] tmp___2 = __VERIFIER_nondet_int() [L892] COND FALSE !(\read(tmp___2)) [L898] tmp___1 = __VERIFIER_nondet_int() [L900] COND TRUE \read(tmp___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, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L907] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L562] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L569] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L571] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L617] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L620] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L635] CALL processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L591] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L594] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L596] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L731] int retValue_acc ; [L732] int tmp ; [L733] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L737] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L838] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L841] COND FALSE !(waterLevel < 2) [L845] retValue_acc = 0 [L846] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L737] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L737] tmp = isHighWaterSensorDry() [L739] COND FALSE !(\read(tmp)) [L742] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L744] retValue_acc = tmp___0 [L745] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L596] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L596] tmp = isHighWaterLevel() [L598] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L600] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L650] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L654] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L675] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L679] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L797] int retValue_acc ; [L800] retValue_acc = methaneLevelCritical [L801] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L679] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L679] retValue_acc = isMethaneLevelCritical() [L681] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L654] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L654] tmp = isMethaneAlarm() [L656] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L660] CALL activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L645] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L660] RET activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L600] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L635] RET processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L571] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L577] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L148] int tmp ; [L149] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L153] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L829] int retValue_acc ; [L832] retValue_acc = waterLevel [L833] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=2, systemActive=1, waterLevel=2] [L153] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L153] tmp = getWaterLevel() [L155] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=2, waterLevel=2] [L577] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L907] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L862] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L864] 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=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L870] tmp = __VERIFIER_nondet_int() [L872] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L880] tmp___0 = __VERIFIER_nondet_int() [L882] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L890] tmp___2 = __VERIFIER_nondet_int() [L892] COND FALSE !(\read(tmp___2)) [L898] tmp___1 = __VERIFIER_nondet_int() [L900] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L907] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L562] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L564] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L764] COND TRUE waterLevel > 0 [L765] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L564] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L569] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L571] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L617] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L620] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L622] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L675] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L679] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L797] int retValue_acc ; [L800] retValue_acc = methaneLevelCritical [L801] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=1] [L679] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L679] retValue_acc = isMethaneLevelCritical() [L681] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=1] [L622] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L622] tmp = isMethaneAlarm() [L624] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=1] [L630] CALL processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L591] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L594] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L609] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L630] RET processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=1] [L571] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L577] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L148] int tmp ; [L149] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L153] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L829] int retValue_acc ; [L832] retValue_acc = waterLevel [L833] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L153] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=1, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L153] tmp = getWaterLevel() [L155] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L577] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L907] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L862] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L864] 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=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L870] tmp = __VERIFIER_nondet_int() [L872] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L880] tmp___0 = __VERIFIER_nondet_int() [L882] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L890] tmp___2 = __VERIFIER_nondet_int() [L892] COND FALSE !(\read(tmp___2)) [L898] tmp___1 = __VERIFIER_nondet_int() [L900] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L907] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L562] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L564] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L764] COND TRUE waterLevel > 0 [L765] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L564] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L569] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L571] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L617] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L620] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L622] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L675] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L679] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L797] int retValue_acc ; [L800] retValue_acc = methaneLevelCritical [L801] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L679] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L679] retValue_acc = isMethaneLevelCritical() [L681] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L622] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L622] tmp = isMethaneAlarm() [L624] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L630] CALL processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L591] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L594] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L609] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L630] RET processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L571] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L577] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L148] int tmp ; [L149] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L153] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L829] int retValue_acc ; [L832] retValue_acc = waterLevel [L833] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L153] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, getWaterLevel()=0, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L153] tmp = getWaterLevel() [L155] COND TRUE tmp == 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L157] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L686] int retValue_acc ; [L689] retValue_acc = pumpRunning [L690] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L157] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L157] tmp___0 = isPumpRunning() [L159] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=0] [L161] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L543] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 29 procedures, 150 locations, 1 error locations. UNSAFE Result, 14.8s OverallTime, 14 OverallIterations, 3 TraceHistogramMax, 8.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2590 SDtfs, 2893 SDslu, 7990 SDs, 0 SdLazy, 5850 SolverSat, 905 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.9s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 1354 GetRequests, 1162 SyntacticMatches, 14 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 695 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1785occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.5s AbstIntTime, 6 AbstIntIterations, 4 AbstIntStrong, 0.9981032155226346 AbsIntWeakeningRatio, 0.8646362098138748 AbsIntAvgWeakeningVarsNumRemoved, 37.076142131979694 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 13 MinimizatonAttempts, 726 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 1989 NumberOfCodeBlocks, 1989 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 2071 ConstructedInterpolants, 0 QuantifiedInterpolants, 442347 SizeOfPredicates, 12 NumberOfNonLiveVariables, 1740 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 17 InterpolantComputations, 8 PerfectInterpolantSequences, 380/434 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...