./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product60_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_fda66cc1-e0de-4c1d-83d9-46d7cf1211e8/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fda66cc1-e0de-4c1d-83d9-46d7cf1211e8/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fda66cc1-e0de-4c1d-83d9-46d7cf1211e8/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fda66cc1-e0de-4c1d-83d9-46d7cf1211e8/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product60_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_fda66cc1-e0de-4c1d-83d9-46d7cf1211e8/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fda66cc1-e0de-4c1d-83d9-46d7cf1211e8/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 e5628f313afbfffa53e61454ca424855ee3b0eb7 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 07:40:22,113 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 07:40:22,114 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 07:40:22,123 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 07:40:22,123 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 07:40:22,124 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 07:40:22,125 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 07:40:22,126 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 07:40:22,127 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 07:40:22,128 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 07:40:22,129 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 07:40:22,129 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 07:40:22,129 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 07:40:22,130 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 07:40:22,131 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 07:40:22,131 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 07:40:22,132 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 07:40:22,134 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 07:40:22,135 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 07:40:22,136 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 07:40:22,137 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 07:40:22,138 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 07:40:22,139 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 07:40:22,139 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 07:40:22,140 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 07:40:22,140 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 07:40:22,141 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 07:40:22,142 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 07:40:22,143 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 07:40:22,143 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 07:40:22,144 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 07:40:22,144 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 07:40:22,144 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 07:40:22,144 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 07:40:22,146 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 07:40:22,146 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 07:40:22,146 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fda66cc1-e0de-4c1d-83d9-46d7cf1211e8/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 07:40:22,156 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 07:40:22,156 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 07:40:22,157 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 07:40:22,157 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 07:40:22,157 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 07:40:22,157 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 07:40:22,158 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 07:40:22,158 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 07:40:22,158 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 07:40:22,158 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 07:40:22,158 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 07:40:22,158 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 07:40:22,158 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 07:40:22,159 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 07:40:22,159 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 07:40:22,159 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 07:40:22,159 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 07:40:22,159 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 07:40:22,159 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 07:40:22,160 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 07:40:22,160 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 07:40:22,160 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 07:40:22,160 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 07:40:22,160 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 07:40:22,160 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 07:40:22,160 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 07:40:22,161 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 07:40:22,161 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 07:40:22,163 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 07:40:22,163 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 07:40:22,164 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 07:40:22,164 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 07:40:22,164 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 07:40:22,164 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 07:40:22,164 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 07:40:22,164 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 07:40:22,164 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 07:40:22,165 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_fda66cc1-e0de-4c1d-83d9-46d7cf1211e8/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 -> e5628f313afbfffa53e61454ca424855ee3b0eb7 [2018-11-23 07:40:22,188 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 07:40:22,197 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 07:40:22,199 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 07:40:22,200 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 07:40:22,200 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 07:40:22,201 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fda66cc1-e0de-4c1d-83d9-46d7cf1211e8/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product60_true-unreach-call_false-termination.cil.c [2018-11-23 07:40:22,243 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fda66cc1-e0de-4c1d-83d9-46d7cf1211e8/bin-2019/utaipan/data/fef1c8433/26e324e8132f4dd880993dd03a59d425/FLAG37ad20e25 [2018-11-23 07:40:22,664 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 07:40:22,665 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fda66cc1-e0de-4c1d-83d9-46d7cf1211e8/sv-benchmarks/c/product-lines/minepump_spec4_product60_true-unreach-call_false-termination.cil.c [2018-11-23 07:40:22,672 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fda66cc1-e0de-4c1d-83d9-46d7cf1211e8/bin-2019/utaipan/data/fef1c8433/26e324e8132f4dd880993dd03a59d425/FLAG37ad20e25 [2018-11-23 07:40:22,680 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fda66cc1-e0de-4c1d-83d9-46d7cf1211e8/bin-2019/utaipan/data/fef1c8433/26e324e8132f4dd880993dd03a59d425 [2018-11-23 07:40:22,682 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 07:40:22,682 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 07:40:22,683 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 07:40:22,683 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 07:40:22,685 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 07:40:22,685 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:40:22" (1/1) ... [2018-11-23 07:40:22,687 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44db1cb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:40:22, skipping insertion in model container [2018-11-23 07:40:22,687 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:40:22" (1/1) ... [2018-11-23 07:40:22,692 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 07:40:22,723 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 07:40:22,918 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 07:40:22,925 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 07:40:23,032 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 07:40:23,050 INFO L195 MainTranslator]: Completed translation [2018-11-23 07:40:23,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:40:23 WrapperNode [2018-11-23 07:40:23,050 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 07:40:23,051 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 07:40:23,051 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 07:40:23,051 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 07:40:23,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:40:23" (1/1) ... [2018-11-23 07:40:23,069 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:40:23" (1/1) ... [2018-11-23 07:40:23,076 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 07:40:23,076 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 07:40:23,076 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 07:40:23,076 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 07:40:23,082 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:40:23" (1/1) ... [2018-11-23 07:40:23,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:40:23" (1/1) ... [2018-11-23 07:40:23,086 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:40:23" (1/1) ... [2018-11-23 07:40:23,086 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:40:23" (1/1) ... [2018-11-23 07:40:23,095 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:40:23" (1/1) ... [2018-11-23 07:40:23,100 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:40:23" (1/1) ... [2018-11-23 07:40:23,104 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:40:23" (1/1) ... [2018-11-23 07:40:23,107 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 07:40:23,107 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 07:40:23,107 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 07:40:23,107 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 07:40:23,108 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:40:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fda66cc1-e0de-4c1d-83d9-46d7cf1211e8/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 [2018-11-23 07:40:23,152 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-11-23 07:40:23,153 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-11-23 07:40:23,153 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2018-11-23 07:40:23,153 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2018-11-23 07:40:23,153 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 07:40:23,153 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 07:40:23,153 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2018-11-23 07:40:23,153 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2018-11-23 07:40:23,153 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-11-23 07:40:23,153 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-11-23 07:40:23,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 07:40:23,154 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-11-23 07:40:23,154 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-11-23 07:40:23,154 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-11-23 07:40:23,154 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-11-23 07:40:23,154 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-11-23 07:40:23,154 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-11-23 07:40:23,154 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-11-23 07:40:23,154 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-11-23 07:40:23,154 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-11-23 07:40:23,155 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-11-23 07:40:23,155 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2018-11-23 07:40:23,155 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2018-11-23 07:40:23,155 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-11-23 07:40:23,155 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-11-23 07:40:23,155 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-11-23 07:40:23,155 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-11-23 07:40:23,155 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-11-23 07:40:23,155 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-11-23 07:40:23,155 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-11-23 07:40:23,156 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-11-23 07:40:23,156 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-11-23 07:40:23,156 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-11-23 07:40:23,156 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-11-23 07:40:23,156 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-11-23 07:40:23,156 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-11-23 07:40:23,156 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-11-23 07:40:23,156 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-11-23 07:40:23,156 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-11-23 07:40:23,157 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2018-11-23 07:40:23,157 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2018-11-23 07:40:23,157 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-11-23 07:40:23,157 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-11-23 07:40:23,157 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-11-23 07:40:23,157 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-11-23 07:40:23,157 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-11-23 07:40:23,157 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-11-23 07:40:23,157 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-11-23 07:40:23,158 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-11-23 07:40:23,158 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-11-23 07:40:23,158 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-11-23 07:40:23,158 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-11-23 07:40:23,158 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-11-23 07:40:23,158 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-11-23 07:40:23,158 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-11-23 07:40:23,159 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-11-23 07:40:23,159 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-11-23 07:40:23,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-23 07:40:23,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 07:40:23,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 07:40:23,159 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-11-23 07:40:23,159 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-11-23 07:40:23,159 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-11-23 07:40:23,160 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-11-23 07:40:23,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 07:40:23,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 07:40:23,605 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 07:40:23,606 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-23 07:40:23,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:40:23 BoogieIcfgContainer [2018-11-23 07:40:23,606 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 07:40:23,607 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 07:40:23,607 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 07:40:23,609 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 07:40:23,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 07:40:22" (1/3) ... [2018-11-23 07:40:23,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a3dac45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 07:40:23, skipping insertion in model container [2018-11-23 07:40:23,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:40:23" (2/3) ... [2018-11-23 07:40:23,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a3dac45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 07:40:23, skipping insertion in model container [2018-11-23 07:40:23,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:40:23" (3/3) ... [2018-11-23 07:40:23,612 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product60_true-unreach-call_false-termination.cil.c [2018-11-23 07:40:23,619 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 07:40:23,626 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 07:40:23,639 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 07:40:23,666 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 07:40:23,666 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 07:40:23,666 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 07:40:23,666 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 07:40:23,666 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 07:40:23,666 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 07:40:23,666 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 07:40:23,666 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 07:40:23,682 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states. [2018-11-23 07:40:23,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-23 07:40:23,689 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:40:23,690 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] [2018-11-23 07:40:23,692 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:40:23,696 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:40:23,697 INFO L82 PathProgramCache]: Analyzing trace with hash -216920679, now seen corresponding path program 1 times [2018-11-23 07:40:23,699 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:40:23,734 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:40:23,734 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:40:23,734 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:40:23,734 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:40:23,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:40:23,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:40:23,876 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:40:23,876 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 07:40:23,876 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 07:40:23,881 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 07:40:23,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 07:40:23,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 07:40:23,890 INFO L87 Difference]: Start difference. First operand 166 states. Second operand 2 states. [2018-11-23 07:40:23,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:40:23,922 INFO L93 Difference]: Finished difference Result 306 states and 373 transitions. [2018-11-23 07:40:23,922 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 07:40:23,923 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-11-23 07:40:23,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:40:23,932 INFO L225 Difference]: With dead ends: 306 [2018-11-23 07:40:23,933 INFO L226 Difference]: Without dead ends: 153 [2018-11-23 07:40:23,935 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 [2018-11-23 07:40:23,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2018-11-23 07:40:23,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2018-11-23 07:40:23,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2018-11-23 07:40:23,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 178 transitions. [2018-11-23 07:40:23,982 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 178 transitions. Word has length 46 [2018-11-23 07:40:23,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:40:23,982 INFO L480 AbstractCegarLoop]: Abstraction has 153 states and 178 transitions. [2018-11-23 07:40:23,982 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 07:40:23,982 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 178 transitions. [2018-11-23 07:40:23,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-11-23 07:40:23,985 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:40:23,985 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] [2018-11-23 07:40:23,985 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:40:23,986 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:40:23,986 INFO L82 PathProgramCache]: Analyzing trace with hash 384858318, now seen corresponding path program 1 times [2018-11-23 07:40:23,986 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:40:23,987 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:40:23,987 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:40:23,987 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:40:23,987 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:40:24,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:40:24,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:40:24,072 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:40:24,073 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 07:40:24,073 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 07:40:24,074 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 07:40:24,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 07:40:24,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 07:40:24,075 INFO L87 Difference]: Start difference. First operand 153 states and 178 transitions. Second operand 3 states. [2018-11-23 07:40:24,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:40:24,093 INFO L93 Difference]: Finished difference Result 245 states and 283 transitions. [2018-11-23 07:40:24,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 07:40:24,093 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-11-23 07:40:24,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:40:24,095 INFO L225 Difference]: With dead ends: 245 [2018-11-23 07:40:24,095 INFO L226 Difference]: Without dead ends: 144 [2018-11-23 07:40:24,096 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 [2018-11-23 07:40:24,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2018-11-23 07:40:24,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2018-11-23 07:40:24,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2018-11-23 07:40:24,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 166 transitions. [2018-11-23 07:40:24,107 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 166 transitions. Word has length 47 [2018-11-23 07:40:24,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:40:24,107 INFO L480 AbstractCegarLoop]: Abstraction has 144 states and 166 transitions. [2018-11-23 07:40:24,107 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 07:40:24,107 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 166 transitions. [2018-11-23 07:40:24,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-11-23 07:40:24,109 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:40:24,109 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] [2018-11-23 07:40:24,109 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:40:24,109 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:40:24,109 INFO L82 PathProgramCache]: Analyzing trace with hash -1912552053, now seen corresponding path program 1 times [2018-11-23 07:40:24,109 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:40:24,110 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:40:24,110 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:40:24,110 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:40:24,110 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:40:24,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:40:24,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:40:24,200 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:40:24,201 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 07:40:24,201 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 07:40:24,201 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 07:40:24,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 07:40:24,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-23 07:40:24,202 INFO L87 Difference]: Start difference. First operand 144 states and 166 transitions. Second operand 7 states. [2018-11-23 07:40:24,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:40:24,545 INFO L93 Difference]: Finished difference Result 434 states and 518 transitions. [2018-11-23 07:40:24,546 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 07:40:24,546 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2018-11-23 07:40:24,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:40:24,548 INFO L225 Difference]: With dead ends: 434 [2018-11-23 07:40:24,549 INFO L226 Difference]: Without dead ends: 314 [2018-11-23 07:40:24,550 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 [2018-11-23 07:40:24,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2018-11-23 07:40:24,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 302. [2018-11-23 07:40:24,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 302 states. [2018-11-23 07:40:24,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 360 transitions. [2018-11-23 07:40:24,579 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 360 transitions. Word has length 52 [2018-11-23 07:40:24,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:40:24,579 INFO L480 AbstractCegarLoop]: Abstraction has 302 states and 360 transitions. [2018-11-23 07:40:24,579 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 07:40:24,579 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 360 transitions. [2018-11-23 07:40:24,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-11-23 07:40:24,581 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:40:24,581 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:40:24,582 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:40:24,582 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:40:24,582 INFO L82 PathProgramCache]: Analyzing trace with hash -801889334, now seen corresponding path program 1 times [2018-11-23 07:40:24,582 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:40:24,583 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:40:24,583 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:40:24,583 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:40:24,583 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:40:24,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:40:24,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:40:24,705 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:40:24,705 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-23 07:40:24,706 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 07:40:24,706 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-23 07:40:24,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 07:40:24,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-11-23 07:40:24,707 INFO L87 Difference]: Start difference. First operand 302 states and 360 transitions. Second operand 10 states. [2018-11-23 07:40:25,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:40:25,079 INFO L93 Difference]: Finished difference Result 1088 states and 1388 transitions. [2018-11-23 07:40:25,080 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-23 07:40:25,080 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 57 [2018-11-23 07:40:25,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:40:25,085 INFO L225 Difference]: With dead ends: 1088 [2018-11-23 07:40:25,085 INFO L226 Difference]: Without dead ends: 810 [2018-11-23 07:40:25,087 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2018-11-23 07:40:25,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2018-11-23 07:40:25,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 798. [2018-11-23 07:40:25,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 798 states. [2018-11-23 07:40:25,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 984 transitions. [2018-11-23 07:40:25,146 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 984 transitions. Word has length 57 [2018-11-23 07:40:25,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:40:25,146 INFO L480 AbstractCegarLoop]: Abstraction has 798 states and 984 transitions. [2018-11-23 07:40:25,147 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-23 07:40:25,147 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 984 transitions. [2018-11-23 07:40:25,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-11-23 07:40:25,150 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:40:25,150 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:40:25,150 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:40:25,150 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:40:25,151 INFO L82 PathProgramCache]: Analyzing trace with hash -1294991664, now seen corresponding path program 1 times [2018-11-23 07:40:25,151 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:40:25,151 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:40:25,151 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:40:25,152 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:40:25,152 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:40:25,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:40:25,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:40:25,222 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:40:25,222 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 07:40:25,222 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 07:40:25,223 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 07:40:25,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 07:40:25,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 07:40:25,223 INFO L87 Difference]: Start difference. First operand 798 states and 984 transitions. Second operand 4 states. [2018-11-23 07:40:25,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:40:25,519 INFO L93 Difference]: Finished difference Result 1977 states and 2649 transitions. [2018-11-23 07:40:25,520 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 07:40:25,520 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 61 [2018-11-23 07:40:25,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:40:25,526 INFO L225 Difference]: With dead ends: 1977 [2018-11-23 07:40:25,527 INFO L226 Difference]: Without dead ends: 1203 [2018-11-23 07:40:25,529 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 07:40:25,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1203 states. [2018-11-23 07:40:25,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1203 to 1065. [2018-11-23 07:40:25,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1065 states. [2018-11-23 07:40:25,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1065 states to 1065 states and 1322 transitions. [2018-11-23 07:40:25,577 INFO L78 Accepts]: Start accepts. Automaton has 1065 states and 1322 transitions. Word has length 61 [2018-11-23 07:40:25,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:40:25,577 INFO L480 AbstractCegarLoop]: Abstraction has 1065 states and 1322 transitions. [2018-11-23 07:40:25,577 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 07:40:25,577 INFO L276 IsEmpty]: Start isEmpty. Operand 1065 states and 1322 transitions. [2018-11-23 07:40:25,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-11-23 07:40:25,579 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:40:25,579 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:40:25,579 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:40:25,580 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:40:25,580 INFO L82 PathProgramCache]: Analyzing trace with hash 42536157, now seen corresponding path program 1 times [2018-11-23 07:40:25,580 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:40:25,580 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:40:25,581 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:40:25,581 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:40:25,581 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:40:25,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:40:25,670 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-11-23 07:40:25,670 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:40:25,670 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 07:40:25,671 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 90 with the following transitions: [2018-11-23 07:40:25,672 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [42], [44], [45], [46], [47], [59], [94], [103], [107], [111], [114], [119], [125], [127], [133], [136], [139], [151], [152], [175], [176], [191], [198], [201], [235], [262], [266], [267], [270], [271], [272], [273], [274], [276], [277], [278], [279], [280], [281], [282], [283], [284], [290], [302], [303], [308], [309], [310], [311], [324], [325], [330], [331], [332] [2018-11-23 07:40:25,696 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 07:40:25,696 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 07:40:26,145 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 07:40:26,146 INFO L272 AbstractInterpreter]: Visited 67 different actions 145 times. Merged at 13 different actions 19 times. Never widened. Performed 4970 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4970 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 2 fixpoints after 2 different actions. Largest state had 133 variables. [2018-11-23 07:40:26,157 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:40:26,158 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 07:40:26,158 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:40:26,158 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fda66cc1-e0de-4c1d-83d9-46d7cf1211e8/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 [2018-11-23 07:40:26,170 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:40:26,171 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 07:40:26,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:40:26,248 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:40:26,376 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-23 07:40:26,376 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 07:40:26,576 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-23 07:40:26,593 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 07:40:26,593 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 8] total 15 [2018-11-23 07:40:26,593 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 07:40:26,594 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-23 07:40:26,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-23 07:40:26,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2018-11-23 07:40:26,594 INFO L87 Difference]: Start difference. First operand 1065 states and 1322 transitions. Second operand 12 states. [2018-11-23 07:40:28,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:40:28,441 INFO L93 Difference]: Finished difference Result 2501 states and 3349 transitions. [2018-11-23 07:40:28,442 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2018-11-23 07:40:28,442 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 89 [2018-11-23 07:40:28,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:40:28,448 INFO L225 Difference]: With dead ends: 2501 [2018-11-23 07:40:28,448 INFO L226 Difference]: Without dead ends: 1738 [2018-11-23 07:40:28,451 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 182 SyntacticMatches, 8 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 858 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=645, Invalid=2547, Unknown=0, NotChecked=0, Total=3192 [2018-11-23 07:40:28,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1738 states. [2018-11-23 07:40:28,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1738 to 1527. [2018-11-23 07:40:28,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1527 states. [2018-11-23 07:40:28,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1527 states to 1527 states and 1917 transitions. [2018-11-23 07:40:28,552 INFO L78 Accepts]: Start accepts. Automaton has 1527 states and 1917 transitions. Word has length 89 [2018-11-23 07:40:28,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:40:28,552 INFO L480 AbstractCegarLoop]: Abstraction has 1527 states and 1917 transitions. [2018-11-23 07:40:28,552 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-23 07:40:28,552 INFO L276 IsEmpty]: Start isEmpty. Operand 1527 states and 1917 transitions. [2018-11-23 07:40:28,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-11-23 07:40:28,556 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:40:28,556 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:40:28,557 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:40:28,557 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:40:28,557 INFO L82 PathProgramCache]: Analyzing trace with hash -1933970932, now seen corresponding path program 1 times [2018-11-23 07:40:28,557 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:40:28,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:40:28,558 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:40:28,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:40:28,558 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:40:28,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:40:28,633 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-11-23 07:40:28,633 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:40:28,633 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 07:40:28,634 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 150 with the following transitions: [2018-11-23 07:40:28,634 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [57], [58], [59], [62], [64], [65], [68], [71], [73], [74], [77], [79], [85], [89], [92], [93], [94], [103], [107], [111], [117], [119], [125], [127], [133], [139], [147], [148], [149], [150], [151], [152], [153], [155], [160], [163], [164], [166], [169], [173], [174], [175], [176], [184], [185], [188], [191], [195], [201], [230], [234], [235], [241], [244], [246], [249], [256], [259], [267], [270], [271], [272], [273], [274], [276], [277], [278], [279], [280], [281], [282], [283], [284], [288], [289], [290], [292], [293], [294], [295], [298], [299], [300], [301], [310], [311], [314], [315], [316], [317], [318], [319], [320], [321], [322], [323], [324], [325], [330], [331], [332], [334], [335], [336], [337], [340], [341] [2018-11-23 07:40:28,637 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 07:40:28,638 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 07:40:29,379 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 07:40:29,379 INFO L272 AbstractInterpreter]: Visited 125 different actions 449 times. Merged at 17 different actions 32 times. Never widened. Performed 16257 root evaluator evaluations with a maximum evaluation depth of 5. Performed 16257 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 5 fixpoints after 3 different actions. Largest state had 133 variables. [2018-11-23 07:40:29,401 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:40:29,402 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 07:40:29,402 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:40:29,402 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fda66cc1-e0de-4c1d-83d9-46d7cf1211e8/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 [2018-11-23 07:40:29,411 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:40:29,411 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 07:40:29,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:40:29,510 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:40:29,550 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-11-23 07:40:29,551 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 07:40:29,727 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-11-23 07:40:29,743 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-23 07:40:29,743 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 6 [2018-11-23 07:40:29,743 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 07:40:29,743 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 07:40:29,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 07:40:29,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-23 07:40:29,744 INFO L87 Difference]: Start difference. First operand 1527 states and 1917 transitions. Second operand 6 states. [2018-11-23 07:40:29,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:40:29,805 INFO L93 Difference]: Finished difference Result 3086 states and 4076 transitions. [2018-11-23 07:40:29,808 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 07:40:29,808 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 149 [2018-11-23 07:40:29,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:40:29,813 INFO L225 Difference]: With dead ends: 3086 [2018-11-23 07:40:29,813 INFO L226 Difference]: Without dead ends: 1583 [2018-11-23 07:40:29,816 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 293 SyntacticMatches, 6 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-23 07:40:29,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1583 states. [2018-11-23 07:40:29,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1583 to 1567. [2018-11-23 07:40:29,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1567 states. [2018-11-23 07:40:29,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 1961 transitions. [2018-11-23 07:40:29,866 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 1961 transitions. Word has length 149 [2018-11-23 07:40:29,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:40:29,866 INFO L480 AbstractCegarLoop]: Abstraction has 1567 states and 1961 transitions. [2018-11-23 07:40:29,866 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 07:40:29,866 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 1961 transitions. [2018-11-23 07:40:29,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-11-23 07:40:29,869 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:40:29,869 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:40:29,869 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:40:29,869 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:40:29,869 INFO L82 PathProgramCache]: Analyzing trace with hash -902930034, now seen corresponding path program 1 times [2018-11-23 07:40:29,869 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:40:29,870 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:40:29,870 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:40:29,870 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:40:29,870 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:40:29,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:40:29,949 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-11-23 07:40:29,950 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:40:29,950 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 07:40:29,950 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 150 with the following transitions: [2018-11-23 07:40:29,950 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [57], [58], [59], [62], [64], [65], [68], [71], [73], [74], [77], [79], [85], [89], [92], [93], [94], [103], [107], [111], [117], [119], [125], [127], [133], [139], [147], [148], [149], [150], [151], [152], [153], [155], [160], [163], [164], [166], [171], [173], [174], [175], [176], [184], [185], [188], [191], [195], [201], [230], [234], [235], [241], [244], [246], [249], [256], [259], [267], [270], [271], [272], [273], [274], [276], [277], [278], [279], [280], [281], [282], [283], [284], [288], [289], [290], [292], [293], [294], [295], [298], [299], [300], [301], [310], [311], [314], [315], [316], [317], [318], [319], [320], [321], [322], [323], [324], [325], [330], [331], [332], [334], [335], [336], [337], [340], [341] [2018-11-23 07:40:29,953 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 07:40:29,953 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 07:40:30,030 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 07:40:30,030 INFO L272 AbstractInterpreter]: Visited 54 different actions 54 times. Never merged. Never widened. Performed 1942 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1942 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-11-23 07:40:30,031 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:40:30,031 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 07:40:30,165 INFO L227 lantSequenceWeakener]: Weakened 64 states. On average, predicates are now at 96.62% of their original sizes. [2018-11-23 07:40:30,165 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 07:40:30,217 INFO L415 sIntCurrentIteration]: We unified 148 AI predicates to 148 [2018-11-23 07:40:30,217 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 07:40:30,218 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 07:40:30,218 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [8] total 17 [2018-11-23 07:40:30,218 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 07:40:30,218 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-23 07:40:30,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-23 07:40:30,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-11-23 07:40:30,219 INFO L87 Difference]: Start difference. First operand 1567 states and 1961 transitions. Second operand 11 states. [2018-11-23 07:40:32,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:40:32,158 INFO L93 Difference]: Finished difference Result 3404 states and 4271 transitions. [2018-11-23 07:40:32,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-23 07:40:32,159 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 149 [2018-11-23 07:40:32,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:40:32,166 INFO L225 Difference]: With dead ends: 3404 [2018-11-23 07:40:32,166 INFO L226 Difference]: Without dead ends: 1861 [2018-11-23 07:40:32,170 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 151 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2018-11-23 07:40:32,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1861 states. [2018-11-23 07:40:32,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1861 to 1813. [2018-11-23 07:40:32,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1813 states. [2018-11-23 07:40:32,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1813 states to 1813 states and 2244 transitions. [2018-11-23 07:40:32,266 INFO L78 Accepts]: Start accepts. Automaton has 1813 states and 2244 transitions. Word has length 149 [2018-11-23 07:40:32,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:40:32,267 INFO L480 AbstractCegarLoop]: Abstraction has 1813 states and 2244 transitions. [2018-11-23 07:40:32,267 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-23 07:40:32,267 INFO L276 IsEmpty]: Start isEmpty. Operand 1813 states and 2244 transitions. [2018-11-23 07:40:32,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2018-11-23 07:40:32,271 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:40:32,271 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:40:32,271 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:40:32,271 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:40:32,271 INFO L82 PathProgramCache]: Analyzing trace with hash 1295809301, now seen corresponding path program 1 times [2018-11-23 07:40:32,271 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:40:32,272 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:40:32,272 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:40:32,272 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:40:32,272 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:40:32,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:40:32,370 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-23 07:40:32,370 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:40:32,370 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 07:40:32,370 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 154 with the following transitions: [2018-11-23 07:40:32,370 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [57], [58], [59], [62], [64], [65], [68], [72], [73], [74], [77], [79], [85], [89], [92], [93], [94], [103], [107], [111], [114], [117], [119], [125], [127], [133], [139], [147], [148], [149], [150], [151], [152], [153], [155], [160], [163], [164], [166], [171], [173], [174], [175], [176], [184], [185], [188], [191], [195], [201], [230], [234], [235], [241], [244], [246], [249], [256], [259], [262], [266], [267], [270], [271], [272], [273], [274], [276], [277], [278], [279], [280], [281], [282], [283], [284], [288], [289], [290], [292], [293], [294], [295], [298], [299], [300], [301], [302], [303], [310], [311], [314], [315], [316], [317], [318], [319], [320], [321], [322], [323], [324], [325], [330], [331], [332], [334], [335], [336], [337], [340], [341] [2018-11-23 07:40:32,373 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 07:40:32,373 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 07:40:33,343 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 07:40:33,344 INFO L272 AbstractInterpreter]: Visited 130 different actions 595 times. Merged at 16 different actions 46 times. Never widened. Performed 18721 root evaluator evaluations with a maximum evaluation depth of 5. Performed 18721 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 9 fixpoints after 3 different actions. Largest state had 133 variables. [2018-11-23 07:40:33,361 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:40:33,361 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 07:40:33,361 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:40:33,361 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fda66cc1-e0de-4c1d-83d9-46d7cf1211e8/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 07:40:33,373 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:40:33,373 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 07:40:33,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:40:33,462 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:40:33,526 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:40:33,526 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 07:40:33,695 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 19 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-23 07:40:33,710 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 07:40:33,711 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 17 [2018-11-23 07:40:33,711 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 07:40:33,711 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-23 07:40:33,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-23 07:40:33,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2018-11-23 07:40:33,712 INFO L87 Difference]: Start difference. First operand 1813 states and 2244 transitions. Second operand 14 states. [2018-11-23 07:40:35,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:40:35,235 INFO L93 Difference]: Finished difference Result 3769 states and 5168 transitions. [2018-11-23 07:40:35,235 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-11-23 07:40:35,235 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 153 [2018-11-23 07:40:35,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:40:35,243 INFO L225 Difference]: With dead ends: 3769 [2018-11-23 07:40:35,243 INFO L226 Difference]: Without dead ends: 2520 [2018-11-23 07:40:35,246 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 302 SyntacticMatches, 6 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=265, Invalid=995, Unknown=0, NotChecked=0, Total=1260 [2018-11-23 07:40:35,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2520 states. [2018-11-23 07:40:35,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2520 to 2079. [2018-11-23 07:40:35,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2079 states. [2018-11-23 07:40:35,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2079 states to 2079 states and 2565 transitions. [2018-11-23 07:40:35,327 INFO L78 Accepts]: Start accepts. Automaton has 2079 states and 2565 transitions. Word has length 153 [2018-11-23 07:40:35,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:40:35,327 INFO L480 AbstractCegarLoop]: Abstraction has 2079 states and 2565 transitions. [2018-11-23 07:40:35,327 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-23 07:40:35,328 INFO L276 IsEmpty]: Start isEmpty. Operand 2079 states and 2565 transitions. [2018-11-23 07:40:35,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2018-11-23 07:40:35,331 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:40:35,331 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:40:35,331 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:40:35,331 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:40:35,331 INFO L82 PathProgramCache]: Analyzing trace with hash -1370465422, now seen corresponding path program 1 times [2018-11-23 07:40:35,331 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:40:35,332 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:40:35,332 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:40:35,332 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:40:35,332 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:40:35,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:40:35,399 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-11-23 07:40:35,399 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:40:35,399 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 07:40:35,399 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 154 with the following transitions: [2018-11-23 07:40:35,400 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [57], [58], [59], [62], [64], [65], [68], [71], [73], [74], [77], [79], [85], [89], [92], [93], [94], [103], [107], [111], [117], [119], [122], [125], [127], [133], [139], [147], [148], [149], [150], [151], [152], [153], [155], [160], [163], [164], [166], [171], [173], [174], [175], [176], [181], [183], [184], [185], [188], [191], [195], [201], [230], [234], [235], [241], [244], [246], [249], [256], [259], [267], [270], [271], [272], [273], [274], [276], [277], [278], [279], [280], [281], [282], [283], [284], [288], [289], [290], [292], [293], [294], [295], [298], [299], [300], [301], [304], [305], [310], [311], [314], [315], [316], [317], [318], [319], [320], [321], [322], [323], [324], [325], [330], [331], [332], [334], [335], [336], [337], [340], [341] [2018-11-23 07:40:35,401 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 07:40:35,402 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 07:40:35,544 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 07:40:35,544 INFO L272 AbstractInterpreter]: Visited 59 different actions 83 times. Merged at 4 different actions 4 times. Never widened. Performed 4632 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4632 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-11-23 07:40:35,557 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:40:35,557 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 07:40:35,688 INFO L227 lantSequenceWeakener]: Weakened 68 states. On average, predicates are now at 96.61% of their original sizes. [2018-11-23 07:40:35,688 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 07:40:35,769 INFO L415 sIntCurrentIteration]: We unified 152 AI predicates to 152 [2018-11-23 07:40:35,769 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 07:40:35,769 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 07:40:35,769 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [8] total 20 [2018-11-23 07:40:35,769 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 07:40:35,770 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-23 07:40:35,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-23 07:40:35,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2018-11-23 07:40:35,770 INFO L87 Difference]: Start difference. First operand 2079 states and 2565 transitions. Second operand 14 states. [2018-11-23 07:40:37,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:40:37,669 INFO L93 Difference]: Finished difference Result 4244 states and 5263 transitions. [2018-11-23 07:40:37,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-23 07:40:37,669 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 153 [2018-11-23 07:40:37,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:40:37,678 INFO L225 Difference]: With dead ends: 4244 [2018-11-23 07:40:37,678 INFO L226 Difference]: Without dead ends: 2189 [2018-11-23 07:40:37,683 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 159 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2018-11-23 07:40:37,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2189 states. [2018-11-23 07:40:37,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2189 to 2136. [2018-11-23 07:40:37,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2136 states. [2018-11-23 07:40:37,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2136 states to 2136 states and 2627 transitions. [2018-11-23 07:40:37,799 INFO L78 Accepts]: Start accepts. Automaton has 2136 states and 2627 transitions. Word has length 153 [2018-11-23 07:40:37,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:40:37,800 INFO L480 AbstractCegarLoop]: Abstraction has 2136 states and 2627 transitions. [2018-11-23 07:40:37,800 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-23 07:40:37,800 INFO L276 IsEmpty]: Start isEmpty. Operand 2136 states and 2627 transitions. [2018-11-23 07:40:37,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2018-11-23 07:40:37,804 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:40:37,804 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:40:37,804 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:40:37,805 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:40:37,805 INFO L82 PathProgramCache]: Analyzing trace with hash 1425178415, now seen corresponding path program 1 times [2018-11-23 07:40:37,805 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:40:37,805 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:40:37,805 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:40:37,806 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:40:37,806 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:40:37,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:40:37,873 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-11-23 07:40:37,873 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:40:37,873 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 07:40:37,873 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 07:40:37,874 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 07:40:37,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 07:40:37,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 07:40:37,874 INFO L87 Difference]: Start difference. First operand 2136 states and 2627 transitions. Second operand 4 states. [2018-11-23 07:40:38,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:40:38,045 INFO L93 Difference]: Finished difference Result 3431 states and 4214 transitions. [2018-11-23 07:40:38,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 07:40:38,046 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2018-11-23 07:40:38,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:40:38,052 INFO L225 Difference]: With dead ends: 3431 [2018-11-23 07:40:38,053 INFO L226 Difference]: Without dead ends: 1319 [2018-11-23 07:40:38,058 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 07:40:38,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1319 states. [2018-11-23 07:40:38,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1319 to 1289. [2018-11-23 07:40:38,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1289 states. [2018-11-23 07:40:38,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1289 states to 1289 states and 1547 transitions. [2018-11-23 07:40:38,126 INFO L78 Accepts]: Start accepts. Automaton has 1289 states and 1547 transitions. Word has length 154 [2018-11-23 07:40:38,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:40:38,127 INFO L480 AbstractCegarLoop]: Abstraction has 1289 states and 1547 transitions. [2018-11-23 07:40:38,127 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 07:40:38,127 INFO L276 IsEmpty]: Start isEmpty. Operand 1289 states and 1547 transitions. [2018-11-23 07:40:38,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2018-11-23 07:40:38,130 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:40:38,130 INFO L402 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:40:38,130 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:40:38,131 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:40:38,131 INFO L82 PathProgramCache]: Analyzing trace with hash -253401112, now seen corresponding path program 1 times [2018-11-23 07:40:38,131 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:40:38,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:40:38,131 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:40:38,132 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:40:38,132 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:40:38,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:40:38,206 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 36 proven. 4 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2018-11-23 07:40:38,207 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:40:38,207 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 07:40:38,207 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 182 with the following transitions: [2018-11-23 07:40:38,207 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [42], [44], [45], [46], [47], [48], [50], [53], [57], [58], [59], [62], [64], [65], [68], [71], [73], [74], [77], [79], [85], [89], [92], [93], [94], [103], [107], [111], [117], [119], [125], [127], [130], [133], [136], [139], [147], [148], [149], [150], [151], [152], [153], [155], [160], [163], [164], [166], [171], [173], [174], [175], [176], [184], [185], [188], [191], [195], [198], [201], [230], [234], [235], [239], [240], [241], [244], [246], [249], [256], [259], [267], [270], [271], [272], [273], [274], [276], [277], [278], [279], [280], [281], [282], [283], [284], [288], [289], [290], [292], [293], [294], [295], [298], [299], [300], [301], [306], [307], [308], [309], [310], [311], [314], [315], [316], [317], [318], [319], [320], [321], [322], [323], [324], [325], [330], [331], [332], [334], [335], [336], [337], [340], [341] [2018-11-23 07:40:38,208 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 07:40:38,209 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 07:40:38,589 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 07:40:38,589 INFO L272 AbstractInterpreter]: Visited 87 different actions 194 times. Merged at 14 different actions 14 times. Never widened. Performed 6887 root evaluator evaluations with a maximum evaluation depth of 3. Performed 6887 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 3 fixpoints after 3 different actions. Largest state had 133 variables. [2018-11-23 07:40:38,598 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:40:38,598 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 07:40:38,598 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:40:38,598 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fda66cc1-e0de-4c1d-83d9-46d7cf1211e8/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 07:40:38,604 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:40:38,604 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 07:40:38,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:40:38,685 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:40:38,755 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2018-11-23 07:40:38,755 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 07:40:38,890 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 36 proven. 4 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2018-11-23 07:40:38,905 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-23 07:40:38,905 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 5] total 11 [2018-11-23 07:40:38,905 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 07:40:38,906 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 07:40:38,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 07:40:38,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-11-23 07:40:38,906 INFO L87 Difference]: Start difference. First operand 1289 states and 1547 transitions. Second operand 5 states. [2018-11-23 07:40:38,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:40:38,939 INFO L93 Difference]: Finished difference Result 2269 states and 2790 transitions. [2018-11-23 07:40:38,939 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 07:40:38,940 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 181 [2018-11-23 07:40:38,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:40:38,942 INFO L225 Difference]: With dead ends: 2269 [2018-11-23 07:40:38,942 INFO L226 Difference]: Without dead ends: 1004 [2018-11-23 07:40:38,944 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 359 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-11-23 07:40:38,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1004 states. [2018-11-23 07:40:38,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1004 to 1004. [2018-11-23 07:40:38,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1004 states. [2018-11-23 07:40:38,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1004 states to 1004 states and 1203 transitions. [2018-11-23 07:40:38,977 INFO L78 Accepts]: Start accepts. Automaton has 1004 states and 1203 transitions. Word has length 181 [2018-11-23 07:40:38,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:40:38,978 INFO L480 AbstractCegarLoop]: Abstraction has 1004 states and 1203 transitions. [2018-11-23 07:40:38,978 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 07:40:38,978 INFO L276 IsEmpty]: Start isEmpty. Operand 1004 states and 1203 transitions. [2018-11-23 07:40:38,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2018-11-23 07:40:38,980 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:40:38,980 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, 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] [2018-11-23 07:40:38,980 INFO L423 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:40:38,980 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:40:38,980 INFO L82 PathProgramCache]: Analyzing trace with hash 1066589445, now seen corresponding path program 1 times [2018-11-23 07:40:38,981 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:40:38,984 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:40:38,984 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:40:38,984 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:40:38,984 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:40:38,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:40:39,059 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 41 proven. 8 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2018-11-23 07:40:39,059 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:40:39,059 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 07:40:39,059 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 208 with the following transitions: [2018-11-23 07:40:39,059 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [50], [53], [55], [57], [58], [59], [62], [64], [65], [68], [72], [73], [74], [77], [79], [85], [89], [92], [93], [94], [103], [107], [111], [114], [117], [119], [125], [127], [133], [139], [147], [148], [149], [150], [151], [152], [153], [155], [160], [163], [164], [166], [171], [173], [174], [175], [176], [184], [185], [188], [191], [195], [201], [230], [234], [235], [241], [244], [246], [249], [256], [259], [262], [266], [267], [270], [271], [272], [273], [274], [276], [277], [278], [279], [280], [281], [282], [283], [284], [288], [289], [290], [292], [293], [294], [295], [298], [299], [300], [301], [302], [303], [310], [311], [314], [315], [316], [317], [318], [319], [320], [321], [322], [323], [324], [325], [330], [331], [332], [334], [335], [336], [337], [340], [341] [2018-11-23 07:40:39,061 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 07:40:39,061 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 07:40:39,723 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 07:40:39,723 INFO L272 AbstractInterpreter]: Visited 131 different actions 607 times. Merged at 19 different actions 55 times. Never widened. Performed 19145 root evaluator evaluations with a maximum evaluation depth of 5. Performed 19145 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 12 fixpoints after 4 different actions. Largest state had 133 variables. [2018-11-23 07:40:39,728 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:40:39,728 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 07:40:39,728 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:40:39,728 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fda66cc1-e0de-4c1d-83d9-46d7cf1211e8/bin-2019/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 07:40:39,734 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:40:39,735 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 07:40:39,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:40:39,808 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:40:39,847 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-11-23 07:40:39,847 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 07:40:40,003 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 41 proven. 8 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2018-11-23 07:40:40,018 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-23 07:40:40,018 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [9, 6] total 13 [2018-11-23 07:40:40,018 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 07:40:40,018 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 07:40:40,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 07:40:40,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-11-23 07:40:40,019 INFO L87 Difference]: Start difference. First operand 1004 states and 1203 transitions. Second operand 6 states. [2018-11-23 07:40:40,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:40:40,045 INFO L93 Difference]: Finished difference Result 1314 states and 1576 transitions. [2018-11-23 07:40:40,045 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 07:40:40,045 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 207 [2018-11-23 07:40:40,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:40:40,046 INFO L225 Difference]: With dead ends: 1314 [2018-11-23 07:40:40,046 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 07:40:40,048 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 409 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2018-11-23 07:40:40,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 07:40:40,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 07:40:40,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 07:40:40,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 07:40:40,049 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 207 [2018-11-23 07:40:40,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:40:40,049 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 07:40:40,049 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 07:40:40,049 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 07:40:40,049 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 07:40:40,052 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 07:40:40,088 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:40:40,110 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:40:40,110 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:40:40,129 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:40:40,129 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:40:40,130 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:40:40,133 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:40:40,289 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:40:40,295 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:40:40,295 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:40:40,296 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:40:40,307 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:40:40,317 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:40:40,324 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:40:40,324 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:40:40,325 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:40:40,383 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:40:40,393 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:40:40,395 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:40:40,395 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:40:40,396 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:40:40,398 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:40:40,414 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:40:40,431 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:40:40,434 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:40:40,435 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:40:40,436 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:40:40,436 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:40:40,437 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:40:40,464 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:40:40,465 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:40:40,466 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:40:40,467 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:40:40,471 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:40:40,472 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:40:40,473 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:40:40,570 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:40:40,576 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:40:40,576 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:40:40,578 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:40:40,589 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:40:40,592 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:40:40,593 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:40:40,624 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:40:40,629 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:40:40,630 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:40:40,631 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 07:40:42,314 INFO L451 ceAbstractionStarter]: At program point select_helpersFINAL(lines 61 67) the Hoare annotation is: true [2018-11-23 07:40:42,314 INFO L448 ceAbstractionStarter]: For program point select_helpersEXIT(lines 61 67) no Hoare annotation was computed. [2018-11-23 07:40:42,314 INFO L448 ceAbstractionStarter]: For program point valid_productEXIT(lines 68 76) no Hoare annotation was computed. [2018-11-23 07:40:42,314 INFO L451 ceAbstractionStarter]: At program point valid_productENTRY(lines 68 76) the Hoare annotation is: true [2018-11-23 07:40:42,314 INFO L448 ceAbstractionStarter]: For program point valid_productFINAL(lines 68 76) no Hoare annotation was computed. [2018-11-23 07:40:42,314 INFO L451 ceAbstractionStarter]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 548 572) the Hoare annotation is: true [2018-11-23 07:40:42,314 INFO L448 ceAbstractionStarter]: For program point __utac_acc__Specification4_spec__1EXIT(lines 548 572) no Hoare annotation was computed. [2018-11-23 07:40:42,314 INFO L444 ceAbstractionStarter]: At program point L562(line 562) the Hoare annotation is: (let ((.cse0 (not (= 0 ~pumpRunning~0))) (.cse1 (< ~waterLevel~0 1)) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2) (or .cse0 (not (= ~systemActive~0 0)) .cse1) (or (< ~waterLevel~0 2) .cse2))) [2018-11-23 07:40:42,314 INFO L448 ceAbstractionStarter]: For program point L560(lines 560 566) no Hoare annotation was computed. [2018-11-23 07:40:42,314 INFO L444 ceAbstractionStarter]: At program point L558(line 558) the Hoare annotation is: (let ((.cse0 (not (= 0 ~pumpRunning~0))) (.cse1 (< ~waterLevel~0 1)) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2) (or .cse0 (not (= ~systemActive~0 0)) .cse1) (or (< ~waterLevel~0 2) .cse2))) [2018-11-23 07:40:42,314 INFO L448 ceAbstractionStarter]: For program point L558-1(line 558) no Hoare annotation was computed. [2018-11-23 07:40:42,314 INFO L448 ceAbstractionStarter]: For program point L556(lines 556 569) no Hoare annotation was computed. [2018-11-23 07:40:42,315 INFO L448 ceAbstractionStarter]: For program point L556-1(lines 548 572) no Hoare annotation was computed. [2018-11-23 07:40:42,315 INFO L451 ceAbstractionStarter]: At program point L554(line 554) the Hoare annotation is: true [2018-11-23 07:40:42,315 INFO L448 ceAbstractionStarter]: For program point L554-1(line 554) no Hoare annotation was computed. [2018-11-23 07:40:42,315 INFO L444 ceAbstractionStarter]: At program point L161(line 161) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-11-23 07:40:42,315 INFO L444 ceAbstractionStarter]: At program point L161-1(line 161) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-11-23 07:40:42,315 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 155 177) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-11-23 07:40:42,315 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 155 177) no Hoare annotation was computed. [2018-11-23 07:40:42,315 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 155 177) no Hoare annotation was computed. [2018-11-23 07:40:42,315 INFO L444 ceAbstractionStarter]: At program point L167(line 167) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= main_~tmp~0 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 07:40:42,315 INFO L444 ceAbstractionStarter]: At program point L167-1(line 167) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= main_~tmp~0 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 07:40:42,315 INFO L448 ceAbstractionStarter]: For program point L165(lines 165 172) no Hoare annotation was computed. [2018-11-23 07:40:42,315 INFO L448 ceAbstractionStarter]: For program point L165-1(lines 165 172) no Hoare annotation was computed. [2018-11-23 07:40:42,315 INFO L448 ceAbstractionStarter]: For program point L163(line 163) no Hoare annotation was computed. [2018-11-23 07:40:42,315 INFO L444 ceAbstractionStarter]: At program point L162(line 162) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-11-23 07:40:42,315 INFO L448 ceAbstractionStarter]: For program point stopSystemEXIT(lines 806 820) no Hoare annotation was computed. [2018-11-23 07:40:42,315 INFO L444 ceAbstractionStarter]: At program point L812(line 812) the Hoare annotation is: (and (or (< ~waterLevel~0 2) (= |old(~systemActive~0)| 0) (and (not (= ~systemActive~0 0)) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1))) [2018-11-23 07:40:42,315 INFO L448 ceAbstractionStarter]: For program point L810(lines 810 816) no Hoare annotation was computed. [2018-11-23 07:40:42,316 INFO L444 ceAbstractionStarter]: At program point stopSystemENTRY(lines 806 820) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (< ~waterLevel~0 2) (= |old(~systemActive~0)| 0) (and (not (= ~systemActive~0 0)) .cse0)) (or .cse0 (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1))))) [2018-11-23 07:40:42,316 INFO L448 ceAbstractionStarter]: For program point stopSystemFINAL(lines 806 820) no Hoare annotation was computed. [2018-11-23 07:40:42,316 INFO L448 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 723 731) no Hoare annotation was computed. [2018-11-23 07:40:42,316 INFO L451 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 723 731) the Hoare annotation is: true [2018-11-23 07:40:42,316 INFO L448 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 723 731) no Hoare annotation was computed. [2018-11-23 07:40:42,316 INFO L448 ceAbstractionStarter]: For program point L796(lines 796 800) no Hoare annotation was computed. [2018-11-23 07:40:42,316 INFO L451 ceAbstractionStarter]: At program point L794(line 794) the Hoare annotation is: true [2018-11-23 07:40:42,316 INFO L448 ceAbstractionStarter]: For program point L796-2(lines 796 800) no Hoare annotation was computed. [2018-11-23 07:40:42,316 INFO L451 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 787 805) the Hoare annotation is: true [2018-11-23 07:40:42,316 INFO L448 ceAbstractionStarter]: For program point L794-1(line 794) no Hoare annotation was computed. [2018-11-23 07:40:42,316 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 787 805) no Hoare annotation was computed. [2018-11-23 07:40:42,316 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 787 805) no Hoare annotation was computed. [2018-11-23 07:40:42,316 INFO L448 ceAbstractionStarter]: For program point select_featuresEXIT(lines 54 60) no Hoare annotation was computed. [2018-11-23 07:40:42,316 INFO L451 ceAbstractionStarter]: At program point select_featuresFINAL(lines 54 60) the Hoare annotation is: true [2018-11-23 07:40:42,316 INFO L444 ceAbstractionStarter]: At program point runTestENTRY(lines 145 154) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-11-23 07:40:42,316 INFO L448 ceAbstractionStarter]: For program point runTestEXIT(lines 145 154) no Hoare annotation was computed. [2018-11-23 07:40:42,316 INFO L448 ceAbstractionStarter]: For program point runTestFINAL(lines 145 154) no Hoare annotation was computed. [2018-11-23 07:40:42,316 INFO L451 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 712 722) the Hoare annotation is: true [2018-11-23 07:40:42,316 INFO L451 ceAbstractionStarter]: At program point L717(line 717) the Hoare annotation is: true [2018-11-23 07:40:42,316 INFO L448 ceAbstractionStarter]: For program point L717-1(line 717) no Hoare annotation was computed. [2018-11-23 07:40:42,316 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 712 722) no Hoare annotation was computed. [2018-11-23 07:40:42,316 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 712 722) no Hoare annotation was computed. [2018-11-23 07:40:42,317 INFO L444 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 704 711) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (< ~waterLevel~0 2) (= ~systemActive~0 0) .cse0) (or .cse0 (< ~waterLevel~0 1) (not (= ~systemActive~0 1))))) [2018-11-23 07:40:42,317 INFO L448 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 704 711) no Hoare annotation was computed. [2018-11-23 07:40:42,317 INFO L448 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 704 711) no Hoare annotation was computed. [2018-11-23 07:40:42,317 INFO L448 ceAbstractionStarter]: For program point L982(lines 982 988) no Hoare annotation was computed. [2018-11-23 07:40:42,317 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 978 991) no Hoare annotation was computed. [2018-11-23 07:40:42,317 INFO L451 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 978 991) the Hoare annotation is: true [2018-11-23 07:40:42,317 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 978 991) no Hoare annotation was computed. [2018-11-23 07:40:42,317 INFO L444 ceAbstractionStarter]: At program point L672(line 672) the Hoare annotation is: (or (< ~waterLevel~0 1) (and (= 0 ~pumpRunning~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1))) [2018-11-23 07:40:42,317 INFO L448 ceAbstractionStarter]: For program point L672-1(lines 653 677) no Hoare annotation was computed. [2018-11-23 07:40:42,317 INFO L444 ceAbstractionStarter]: At program point L667(line 667) the Hoare annotation is: (or (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-11-23 07:40:42,317 INFO L444 ceAbstractionStarter]: At program point L663(line 663) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or (and (<= 1 processEnvironment_~tmp~6) (= |old(~pumpRunning~0)| ~pumpRunning~0)) .cse0 .cse1))) [2018-11-23 07:40:42,317 INFO L448 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 653 677) no Hoare annotation was computed. [2018-11-23 07:40:42,317 INFO L448 ceAbstractionStarter]: For program point L661(lines 661 669) no Hoare annotation was computed. [2018-11-23 07:40:42,317 INFO L444 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 653 677) the Hoare annotation is: (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-11-23 07:40:42,317 INFO L444 ceAbstractionStarter]: At program point L659(line 659) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse0 .cse1))) [2018-11-23 07:40:42,317 INFO L448 ceAbstractionStarter]: For program point L659-1(line 659) no Hoare annotation was computed. [2018-11-23 07:40:42,318 INFO L448 ceAbstractionStarter]: For program point L657(lines 657 674) no Hoare annotation was computed. [2018-11-23 07:40:42,318 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 619 625) no Hoare annotation was computed. [2018-11-23 07:40:42,318 INFO L451 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 619 625) the Hoare annotation is: true [2018-11-23 07:40:42,318 INFO L444 ceAbstractionStarter]: At program point testENTRY(lines 830 897) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-11-23 07:40:42,318 INFO L444 ceAbstractionStarter]: At program point L890(lines 839 891) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 07:40:42,318 INFO L448 ceAbstractionStarter]: For program point testFINAL(lines 830 897) no Hoare annotation was computed. [2018-11-23 07:40:42,318 INFO L444 ceAbstractionStarter]: At program point L880(line 880) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (and (and .cse0 (<= 2 ~waterLevel~0)) (not (= ~systemActive~0 0))) (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-23 07:40:42,318 INFO L448 ceAbstractionStarter]: For program point L878(lines 878 884) no Hoare annotation was computed. [2018-11-23 07:40:42,318 INFO L444 ceAbstractionStarter]: At program point L878-1(lines 870 885) the Hoare annotation is: (let ((.cse1 (= test_~splverifierCounter~0 0)) (.cse0 (= ~systemActive~0 1))) (or (not (= |old(~systemActive~0)| 1)) (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= ~systemActive~0 0) (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse1) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and .cse1 (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 0) .cse0))) [2018-11-23 07:40:42,318 INFO L448 ceAbstractionStarter]: For program point L841(lines 840 889) no Hoare annotation was computed. [2018-11-23 07:40:42,319 INFO L444 ceAbstractionStarter]: At program point L872(line 872) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0) (not (= |old(~systemActive~0)| 1)) (and (<= 2 ~waterLevel~0) (not (= ~systemActive~0 0)) .cse0) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-23 07:40:42,319 INFO L448 ceAbstractionStarter]: For program point L870(lines 870 885) no Hoare annotation was computed. [2018-11-23 07:40:42,319 INFO L444 ceAbstractionStarter]: At program point L862(line 862) the Hoare annotation is: (let ((.cse1 (= test_~splverifierCounter~0 0)) (.cse0 (= ~systemActive~0 1))) (or (not (= |old(~systemActive~0)| 1)) (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= ~systemActive~0 0) (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse1) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and .cse1 (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 0) .cse0))) [2018-11-23 07:40:42,319 INFO L448 ceAbstractionStarter]: For program point L860(lines 860 866) no Hoare annotation was computed. [2018-11-23 07:40:42,319 INFO L448 ceAbstractionStarter]: For program point L860-1(lines 860 866) no Hoare annotation was computed. [2018-11-23 07:40:42,319 INFO L444 ceAbstractionStarter]: At program point L887(lines 840 889) the Hoare annotation is: (let ((.cse1 (= test_~splverifierCounter~0 0)) (.cse0 (= ~systemActive~0 1))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (not (= |old(~systemActive~0)| 1)) (and (= ~systemActive~0 0) (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse1) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and .cse1 (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 0) .cse0))) [2018-11-23 07:40:42,319 INFO L444 ceAbstractionStarter]: At program point L852(line 852) the Hoare annotation is: (let ((.cse0 (= 0 ~pumpRunning~0)) (.cse1 (<= 1 ~waterLevel~0)) (.cse2 (= ~systemActive~0 1)) (.cse3 (= test_~splverifierCounter~0 0))) (or (not (= |old(~systemActive~0)| 1)) (and .cse0 .cse1 .cse2 .cse3) (and (= ~systemActive~0 0) .cse0 .cse1 .cse3) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse2 .cse3) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-23 07:40:42,319 INFO L448 ceAbstractionStarter]: For program point L850(lines 850 856) no Hoare annotation was computed. [2018-11-23 07:40:42,319 INFO L448 ceAbstractionStarter]: For program point L850-1(lines 850 856) no Hoare annotation was computed. [2018-11-23 07:40:42,319 INFO L448 ceAbstractionStarter]: For program point L842(lines 842 846) no Hoare annotation was computed. [2018-11-23 07:40:42,319 INFO L448 ceAbstractionStarter]: For program point testEXIT(lines 830 897) no Hoare annotation was computed. [2018-11-23 07:40:42,319 INFO L444 ceAbstractionStarter]: At program point activatePump__wrappee__lowWaterSensorENTRY(lines 678 685) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 2) (not (= ~systemActive~0 1))) [2018-11-23 07:40:42,319 INFO L448 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorFINAL(lines 678 685) no Hoare annotation was computed. [2018-11-23 07:40:42,319 INFO L448 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 678 685) no Hoare annotation was computed. [2018-11-23 07:40:42,319 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 992 1000) no Hoare annotation was computed. [2018-11-23 07:40:42,319 INFO L451 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 992 1000) the Hoare annotation is: true [2018-11-23 07:40:42,320 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 992 1000) no Hoare annotation was computed. [2018-11-23 07:40:42,320 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-23 07:40:42,320 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-11-23 07:40:42,320 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 07:40:42,320 INFO L448 ceAbstractionStarter]: For program point activatePumpEXIT(lines 687 703) no Hoare annotation was computed. [2018-11-23 07:40:42,320 INFO L444 ceAbstractionStarter]: At program point L698(line 698) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 2) (not (= ~systemActive~0 1))) [2018-11-23 07:40:42,320 INFO L448 ceAbstractionStarter]: For program point L698-1(lines 687 703) no Hoare annotation was computed. [2018-11-23 07:40:42,320 INFO L444 ceAbstractionStarter]: At program point activatePumpENTRY(lines 687 703) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 2) (not (= ~systemActive~0 1))) [2018-11-23 07:40:42,320 INFO L448 ceAbstractionStarter]: For program point L694(lines 694 700) no Hoare annotation was computed. [2018-11-23 07:40:42,320 INFO L444 ceAbstractionStarter]: At program point L692(line 692) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 2) (not (= ~systemActive~0 1))) [2018-11-23 07:40:42,320 INFO L448 ceAbstractionStarter]: For program point L692-1(line 692) no Hoare annotation was computed. [2018-11-23 07:40:42,320 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 768 786) no Hoare annotation was computed. [2018-11-23 07:40:42,320 INFO L448 ceAbstractionStarter]: For program point L777(lines 777 781) no Hoare annotation was computed. [2018-11-23 07:40:42,320 INFO L451 ceAbstractionStarter]: At program point L775(line 775) the Hoare annotation is: true [2018-11-23 07:40:42,320 INFO L448 ceAbstractionStarter]: For program point L777-2(lines 777 781) no Hoare annotation was computed. [2018-11-23 07:40:42,320 INFO L448 ceAbstractionStarter]: For program point L775-1(line 775) no Hoare annotation was computed. [2018-11-23 07:40:42,320 INFO L451 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 768 786) the Hoare annotation is: true [2018-11-23 07:40:42,320 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 768 786) no Hoare annotation was computed. [2018-11-23 07:40:42,320 INFO L451 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 969 977) the Hoare annotation is: true [2018-11-23 07:40:42,320 INFO L448 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 969 977) no Hoare annotation was computed. [2018-11-23 07:40:42,320 INFO L448 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 969 977) no Hoare annotation was computed. [2018-11-23 07:40:42,320 INFO L448 ceAbstractionStarter]: For program point L929-1(lines 925 936) no Hoare annotation was computed. [2018-11-23 07:40:42,320 INFO L444 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 925 936) the Hoare annotation is: (let ((.cse0 (not (= 0 ~pumpRunning~0))) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (not (= ~waterLevel~0 1)))) (and (or .cse0 .cse1 .cse2 (not (= |old(~methaneLevelCritical~0)| 0)) (= ~methaneLevelCritical~0 0)) (or (= ~methaneLevelCritical~0 1) (not (= |old(~methaneLevelCritical~0)| 1)) .cse0 .cse1 .cse2))) [2018-11-23 07:40:42,321 INFO L448 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 925 936) no Hoare annotation was computed. [2018-11-23 07:40:42,321 INFO L451 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 937 945) the Hoare annotation is: true [2018-11-23 07:40:42,321 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 937 945) no Hoare annotation was computed. [2018-11-23 07:40:42,321 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 937 945) no Hoare annotation was computed. [2018-11-23 07:40:42,321 INFO L444 ceAbstractionStarter]: At program point L608(line 608) the Hoare annotation is: (let ((.cse3 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse2 (not (= ~systemActive~0 1))) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (< |old(~waterLevel~0)| 1))) (and (or .cse0 .cse1 (= ~waterLevel~0 |old(~waterLevel~0)|) .cse2) (or .cse0 .cse2 .cse3 (not (= |old(~waterLevel~0)| 1))) (or (and (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse3) (or (< |old(~waterLevel~0)| 2) .cse2)) (or .cse0 (not (= ~systemActive~0 0)) .cse1))) [2018-11-23 07:40:42,321 INFO L444 ceAbstractionStarter]: At program point L606(lines 606 612) the Hoare annotation is: (let ((.cse2 (= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse1 (not (= ~systemActive~0 1))) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (and .cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0)))) (and (or .cse0 (<= |old(~waterLevel~0)| 1) .cse1 .cse2) (or .cse0 .cse1 (not (= |old(~waterLevel~0)| 1)) .cse3) (let ((.cse4 (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)))) (or (and (<= 2 ~waterLevel~0) .cse4) (and (= 0 ~pumpRunning~0) .cse4) (or (< |old(~waterLevel~0)| 2) .cse1))) (or .cse0 (not (= ~systemActive~0 0)) (< |old(~waterLevel~0)| 1) .cse3)))) [2018-11-23 07:40:42,321 INFO L444 ceAbstractionStarter]: At program point L601(line 601) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (< |old(~waterLevel~0)| 1)) (.cse0 (not (= ~systemActive~0 1)))) (and (or (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (or (< |old(~waterLevel~0)| 2) .cse0)) (or .cse1 (not (= ~systemActive~0 0)) .cse2) (or .cse1 .cse2 .cse0))) [2018-11-23 07:40:42,321 INFO L448 ceAbstractionStarter]: For program point L599(lines 598 617) no Hoare annotation was computed. [2018-11-23 07:40:42,321 INFO L444 ceAbstractionStarter]: At program point timeShiftENTRY(lines 595 618) the Hoare annotation is: (let ((.cse1 (not (= ~systemActive~0 1))) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)))) (and (or .cse0 (or (< |old(~waterLevel~0)| 2) .cse1)) (or .cse2 .cse1 .cse0 (not (= |old(~waterLevel~0)| 1))) (or .cse2 (not (= ~systemActive~0 0)) (< |old(~waterLevel~0)| 1) .cse0))) [2018-11-23 07:40:42,321 INFO L448 ceAbstractionStarter]: For program point timeShiftEXIT(lines 595 618) no Hoare annotation was computed. [2018-11-23 07:40:42,321 INFO L448 ceAbstractionStarter]: For program point timeShiftFINAL(lines 595 618) no Hoare annotation was computed. [2018-11-23 07:40:42,321 INFO L448 ceAbstractionStarter]: For program point cleanupEXIT(lines 80 109) no Hoare annotation was computed. [2018-11-23 07:40:42,321 INFO L448 ceAbstractionStarter]: For program point L94(lines 94 98) no Hoare annotation was computed. [2018-11-23 07:40:42,321 INFO L451 ceAbstractionStarter]: At program point L94-1(lines 94 98) the Hoare annotation is: true [2018-11-23 07:40:42,321 INFO L451 ceAbstractionStarter]: At program point cleanupENTRY(lines 80 109) the Hoare annotation is: true [2018-11-23 07:40:42,321 INFO L448 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-11-23 07:40:42,322 INFO L451 ceAbstractionStarter]: At program point L90-2(lines 90 104) the Hoare annotation is: true [2018-11-23 07:40:42,322 INFO L451 ceAbstractionStarter]: At program point L86(line 86) the Hoare annotation is: true [2018-11-23 07:40:42,322 INFO L448 ceAbstractionStarter]: For program point L86-1(line 86) no Hoare annotation was computed. [2018-11-23 07:40:42,322 INFO L451 ceAbstractionStarter]: At program point L105(lines 80 109) the Hoare annotation is: true [2018-11-23 07:40:42,322 INFO L448 ceAbstractionStarter]: For program point L101(line 101) no Hoare annotation was computed. [2018-11-23 07:40:42,322 INFO L444 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 901 912) the Hoare annotation is: (or (= ~waterLevel~0 |old(~waterLevel~0)|) (or (< |old(~waterLevel~0)| 2) (not (= ~systemActive~0 1)))) [2018-11-23 07:40:42,322 INFO L448 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 901 912) no Hoare annotation was computed. [2018-11-23 07:40:42,322 INFO L448 ceAbstractionStarter]: For program point L905-1(lines 901 912) no Hoare annotation was computed. [2018-11-23 07:40:42,322 INFO L448 ceAbstractionStarter]: For program point setupEXIT(lines 137 143) no Hoare annotation was computed. [2018-11-23 07:40:42,322 INFO L451 ceAbstractionStarter]: At program point setupFINAL(lines 137 143) the Hoare annotation is: true [2018-11-23 07:40:42,322 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 07:40:42,322 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0) (= ~systemActive~0 1)) [2018-11-23 07:40:42,322 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 07:40:42,322 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 07:40:42,322 INFO L448 ceAbstractionStarter]: For program point startSystemEXIT(lines 821 828) no Hoare annotation was computed. [2018-11-23 07:40:42,322 INFO L444 ceAbstractionStarter]: At program point startSystemENTRY(lines 821 828) the Hoare annotation is: (let ((.cse3 (= ~systemActive~0 1)) (.cse0 (not (= 0 ~pumpRunning~0))) (.cse1 (not (= |old(~systemActive~0)| 1))) (.cse2 (not (= ~waterLevel~0 1)))) (and (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0)) .cse3) (or (not (= ~methaneLevelCritical~0 1)) .cse3 .cse0 .cse1 .cse2) (or (= |old(~systemActive~0)| 0) (not (= ~systemActive~0 0)) (< ~waterLevel~0 2)))) [2018-11-23 07:40:42,323 INFO L448 ceAbstractionStarter]: For program point startSystemFINAL(lines 821 828) no Hoare annotation was computed. [2018-11-23 07:40:42,323 INFO L444 ceAbstractionStarter]: At program point L641(line 641) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~5) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse1 (not (= ~systemActive~0 1)))) (and (or (or .cse0 .cse1) (< ~waterLevel~0 2) .cse2) (or .cse0 .cse2 .cse1 (not (= ~waterLevel~0 1))))) [2018-11-23 07:40:42,323 INFO L444 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 627 651) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0) (not (= ~systemActive~0 1))) [2018-11-23 07:40:42,323 INFO L444 ceAbstractionStarter]: At program point L637(line 637) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-11-23 07:40:42,323 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 627 651) no Hoare annotation was computed. [2018-11-23 07:40:42,323 INFO L448 ceAbstractionStarter]: For program point L635(lines 635 643) no Hoare annotation was computed. [2018-11-23 07:40:42,323 INFO L444 ceAbstractionStarter]: At program point L633(line 633) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0) (not (= ~systemActive~0 1))) [2018-11-23 07:40:42,323 INFO L448 ceAbstractionStarter]: For program point L633-1(line 633) no Hoare annotation was computed. [2018-11-23 07:40:42,323 INFO L448 ceAbstractionStarter]: For program point L631(lines 631 648) no Hoare annotation was computed. [2018-11-23 07:40:42,323 INFO L444 ceAbstractionStarter]: At program point L646(line 646) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-11-23 07:40:42,323 INFO L448 ceAbstractionStarter]: For program point L646-1(lines 627 651) no Hoare annotation was computed. [2018-11-23 07:40:42,323 INFO L448 ceAbstractionStarter]: For program point waterRiseEXIT(lines 913 924) no Hoare annotation was computed. [2018-11-23 07:40:42,323 INFO L448 ceAbstractionStarter]: For program point L917-1(lines 913 924) no Hoare annotation was computed. [2018-11-23 07:40:42,323 INFO L444 ceAbstractionStarter]: At program point waterRiseENTRY(lines 913 924) the Hoare annotation is: (let ((.cse2 (not (= ~systemActive~0 1))) (.cse0 (not (= 0 ~pumpRunning~0))) (.cse1 (< |old(~waterLevel~0)| 1)) (.cse3 (= ~waterLevel~0 |old(~waterLevel~0)|))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse3 .cse2 (< |old(~waterLevel~0)| 2)) (or .cse0 (not (= ~systemActive~0 0)) .cse1 .cse3))) [2018-11-23 07:40:42,323 INFO L448 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 574 581) no Hoare annotation was computed. [2018-11-23 07:40:42,323 INFO L448 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 578) no Hoare annotation was computed. [2018-11-23 07:40:42,324 INFO L451 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 574 581) the Hoare annotation is: true [2018-11-23 07:40:42,324 INFO L448 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 574 581) no Hoare annotation was computed. [2018-11-23 07:40:42,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 07:40:42 BoogieIcfgContainer [2018-11-23 07:40:42,334 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 07:40:42,334 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 07:40:42,334 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 07:40:42,334 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 07:40:42,335 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:40:23" (3/4) ... [2018-11-23 07:40:42,338 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 07:40:42,342 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-11-23 07:40:42,343 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-11-23 07:40:42,343 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification4_spec__1 [2018-11-23 07:40:42,343 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 07:40:42,343 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure stopSystem [2018-11-23 07:40:42,343 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-11-23 07:40:42,343 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterLevel [2018-11-23 07:40:42,343 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-11-23 07:40:42,343 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-11-23 07:40:42,343 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2018-11-23 07:40:42,343 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-11-23 07:40:42,343 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-11-23 07:40:42,343 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-11-23 07:40:42,343 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-11-23 07:40:42,344 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-11-23 07:40:42,344 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump__wrappee__lowWaterSensor [2018-11-23 07:40:42,344 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterSensorDry [2018-11-23 07:40:42,344 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 07:40:42,344 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-11-23 07:40:42,344 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-11-23 07:40:42,344 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure getWaterLevel [2018-11-23 07:40:42,344 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-11-23 07:40:42,344 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2018-11-23 07:40:42,344 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-11-23 07:40:42,344 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-11-23 07:40:42,344 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-11-23 07:40:42,344 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-11-23 07:40:42,345 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure startSystem [2018-11-23 07:40:42,345 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2018-11-23 07:40:42,345 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-11-23 07:40:42,345 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-11-23 07:40:42,355 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 47 nodes and edges [2018-11-23 07:40:42,356 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2018-11-23 07:40:42,356 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-23 07:40:42,356 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-23 07:40:42,357 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-23 07:40:42,357 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 07:40:42,357 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 07:40:42,376 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((2 <= waterLevel && systemActive == 1) && splverifierCounter == 0) || !(\old(systemActive) == 1)) || (((systemActive == 0 && 0 == pumpRunning) && 1 <= waterLevel) && splverifierCounter == 0)) || !(0 == \old(pumpRunning))) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0)) || (((splverifierCounter == 0 && waterLevel == \old(waterLevel)) && pumpRunning == 0) && systemActive == 1) [2018-11-23 07:40:42,376 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-11-23 07:40:42,408 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_fda66cc1-e0de-4c1d-83d9-46d7cf1211e8/bin-2019/utaipan/witness.graphml [2018-11-23 07:40:42,408 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 07:40:42,409 INFO L168 Benchmark]: Toolchain (without parser) took 19726.97 ms. Allocated memory was 1.0 GB in the beginning and 2.0 GB in the end (delta: 946.3 MB). Free memory was 951.1 MB in the beginning and 1.7 GB in the end (delta: -787.1 MB). Peak memory consumption was 159.2 MB. Max. memory is 11.5 GB. [2018-11-23 07:40:42,410 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 07:40:42,410 INFO L168 Benchmark]: CACSL2BoogieTranslator took 367.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 951.1 MB in the beginning and 1.1 GB in the end (delta: -165.1 MB). Peak memory consumption was 32.1 MB. Max. memory is 11.5 GB. [2018-11-23 07:40:42,410 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.86 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. [2018-11-23 07:40:42,410 INFO L168 Benchmark]: Boogie Preprocessor took 30.95 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-23 07:40:42,410 INFO L168 Benchmark]: RCFGBuilder took 498.96 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: 56.5 MB). Peak memory consumption was 56.5 MB. Max. memory is 11.5 GB. [2018-11-23 07:40:42,411 INFO L168 Benchmark]: TraceAbstraction took 18727.12 ms. Allocated memory was 1.2 GB in the beginning and 2.0 GB in the end (delta: 816.8 MB). Free memory was 1.1 GB in the beginning and 1.8 GB in the end (delta: -704.0 MB). Peak memory consumption was 1.1 GB. Max. memory is 11.5 GB. [2018-11-23 07:40:42,411 INFO L168 Benchmark]: Witness Printer took 74.30 ms. Allocated memory is still 2.0 GB. Free memory was 1.8 GB in the beginning and 1.7 GB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. [2018-11-23 07:40:42,412 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 367.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 951.1 MB in the beginning and 1.1 GB in the end (delta: -165.1 MB). Peak memory consumption was 32.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.86 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 30.95 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 498.96 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: 56.5 MB). Peak memory consumption was 56.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 18727.12 ms. Allocated memory was 1.2 GB in the beginning and 2.0 GB in the end (delta: 816.8 MB). Free memory was 1.1 GB in the beginning and 1.8 GB in the end (delta: -704.0 MB). Peak memory consumption was 1.1 GB. Max. memory is 11.5 GB. * Witness Printer took 74.30 ms. Allocated memory is still 2.0 GB. Free memory was 1.8 GB in the beginning and 1.7 GB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 578]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 840]: Loop Invariant Derived loop invariant: (((((((2 <= waterLevel && systemActive == 1) && splverifierCounter == 0) || !(\old(systemActive) == 1)) || (((systemActive == 0 && 0 == pumpRunning) && 1 <= waterLevel) && splverifierCounter == 0)) || !(0 == \old(pumpRunning))) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0)) || (((splverifierCounter == 0 && waterLevel == \old(waterLevel)) && pumpRunning == 0) && systemActive == 1) - InvariantResult [Line: 90]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 80]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 839]: Loop Invariant Derived loop invariant: ((!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 32 procedures, 166 locations, 1 error locations. SAFE Result, 18.6s OverallTime, 13 OverallIterations, 3 TraceHistogramMax, 8.6s AutomataDifference, 0.0s DeadEndRemovalTime, 2.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 2664 SDtfs, 3624 SDslu, 7719 SDs, 0 SdLazy, 6800 SolverSat, 1785 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.1s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 2053 GetRequests, 1848 SyntacticMatches, 28 SemanticMatches, 177 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1257 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2136occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 3.5s AbstIntTime, 7 AbstIntIterations, 2 AbstIntStrong, 0.9982589145197228 AbsIntWeakeningRatio, 0.8866666666666667 AbsIntAvgWeakeningVarsNumRemoved, 37.82 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 13 MinimizatonAttempts, 961 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 69 LocationsWithAnnotation, 5325 PreInvPairs, 5402 NumberOfFragments, 1416 HoareAnnotationTreeSize, 5325 FomulaSimplifications, 38337 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 69 FomulaSimplificationsInter, 14835 FormulaSimplificationTreeSizeReductionInter, 1.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 2277 NumberOfCodeBlocks, 2277 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 3033 ConstructedInterpolants, 0 QuantifiedInterpolants, 595827 SizeOfPredicates, 19 NumberOfNonLiveVariables, 4419 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 23 InterpolantComputations, 9 PerfectInterpolantSequences, 813/882 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...