./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product61_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_22870c31-ce54-40bf-8e93-4d7359064e9c/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_22870c31-ce54-40bf-8e93-4d7359064e9c/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_22870c31-ce54-40bf-8e93-4d7359064e9c/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_22870c31-ce54-40bf-8e93-4d7359064e9c/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product61_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_22870c31-ce54-40bf-8e93-4d7359064e9c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_22870c31-ce54-40bf-8e93-4d7359064e9c/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 62215579489c65348c20dcb35d4d11bc17ff5b74 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 13:14:42,157 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 13:14:42,158 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 13:14:42,166 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 13:14:42,166 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 13:14:42,167 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 13:14:42,168 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 13:14:42,169 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 13:14:42,170 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 13:14:42,171 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 13:14:42,171 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 13:14:42,172 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 13:14:42,172 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 13:14:42,173 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 13:14:42,174 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 13:14:42,174 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 13:14:42,175 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 13:14:42,176 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 13:14:42,177 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 13:14:42,178 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 13:14:42,179 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 13:14:42,180 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 13:14:42,181 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 13:14:42,182 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 13:14:42,182 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 13:14:42,182 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 13:14:42,183 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 13:14:42,184 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 13:14:42,184 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 13:14:42,185 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 13:14:42,185 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 13:14:42,186 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 13:14:42,186 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 13:14:42,186 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 13:14:42,187 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 13:14:42,187 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 13:14:42,187 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_22870c31-ce54-40bf-8e93-4d7359064e9c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 13:14:42,198 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 13:14:42,198 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 13:14:42,199 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 13:14:42,199 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 13:14:42,199 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 13:14:42,199 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 13:14:42,200 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 13:14:42,200 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 13:14:42,200 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 13:14:42,200 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 13:14:42,200 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 13:14:42,200 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 13:14:42,201 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 13:14:42,201 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 13:14:42,201 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 13:14:42,201 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 13:14:42,202 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 13:14:42,202 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 13:14:42,202 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 13:14:42,202 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 13:14:42,202 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 13:14:42,202 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 13:14:42,202 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 13:14:42,203 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 13:14:42,203 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 13:14:42,203 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 13:14:42,203 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 13:14:42,203 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 13:14:42,203 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 13:14:42,204 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 13:14:42,204 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 13:14:42,204 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 13:14:42,204 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 13:14:42,204 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 13:14:42,204 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 13:14:42,204 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 13:14:42,205 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 13:14:42,205 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_22870c31-ce54-40bf-8e93-4d7359064e9c/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 -> 62215579489c65348c20dcb35d4d11bc17ff5b74 [2018-11-23 13:14:42,226 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 13:14:42,234 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 13:14:42,236 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 13:14:42,237 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 13:14:42,237 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 13:14:42,238 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_22870c31-ce54-40bf-8e93-4d7359064e9c/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product61_true-unreach-call_false-termination.cil.c [2018-11-23 13:14:42,273 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_22870c31-ce54-40bf-8e93-4d7359064e9c/bin-2019/utaipan/data/b48de320c/73a7573e025447a8bd89847503a98272/FLAG49dab83cc [2018-11-23 13:14:42,714 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 13:14:42,715 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_22870c31-ce54-40bf-8e93-4d7359064e9c/sv-benchmarks/c/product-lines/minepump_spec4_product61_true-unreach-call_false-termination.cil.c [2018-11-23 13:14:42,721 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_22870c31-ce54-40bf-8e93-4d7359064e9c/bin-2019/utaipan/data/b48de320c/73a7573e025447a8bd89847503a98272/FLAG49dab83cc [2018-11-23 13:14:42,729 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_22870c31-ce54-40bf-8e93-4d7359064e9c/bin-2019/utaipan/data/b48de320c/73a7573e025447a8bd89847503a98272 [2018-11-23 13:14:42,732 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 13:14:42,733 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 13:14:42,734 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 13:14:42,734 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 13:14:42,737 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 13:14:42,738 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:14:42" (1/1) ... [2018-11-23 13:14:42,740 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 01:14:42, skipping insertion in model container [2018-11-23 13:14:42,740 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:14:42" (1/1) ... [2018-11-23 13:14:42,748 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 13:14:42,780 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 13:14:42,984 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 13:14:42,994 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 13:14:43,097 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 13:14:43,119 INFO L195 MainTranslator]: Completed translation [2018-11-23 13:14:43,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:14:43 WrapperNode [2018-11-23 13:14:43,120 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 13:14:43,120 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 13:14:43,120 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 13:14:43,120 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 13:14:43,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:14:43" (1/1) ... [2018-11-23 13:14:43,141 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:14:43" (1/1) ... [2018-11-23 13:14:43,148 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 13:14:43,148 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 13:14:43,148 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 13:14:43,148 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 13:14:43,157 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:14:43" (1/1) ... [2018-11-23 13:14:43,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:14:43" (1/1) ... [2018-11-23 13:14:43,160 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:14:43" (1/1) ... [2018-11-23 13:14:43,160 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:14:43" (1/1) ... [2018-11-23 13:14:43,171 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:14:43" (1/1) ... [2018-11-23 13:14:43,176 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:14:43" (1/1) ... [2018-11-23 13:14:43,178 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:14:43" (1/1) ... [2018-11-23 13:14:43,181 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 13:14:43,181 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 13:14:43,181 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 13:14:43,182 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 13:14:43,182 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:14:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_22870c31-ce54-40bf-8e93-4d7359064e9c/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 13:14:43,224 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-11-23 13:14:43,224 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-11-23 13:14:43,224 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2018-11-23 13:14:43,224 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2018-11-23 13:14:43,225 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 13:14:43,225 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 13:14:43,225 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-11-23 13:14:43,225 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-11-23 13:14:43,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 13:14:43,225 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-11-23 13:14:43,225 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-11-23 13:14:43,225 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-11-23 13:14:43,226 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-11-23 13:14:43,226 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-11-23 13:14:43,226 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-11-23 13:14:43,226 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-11-23 13:14:43,226 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-11-23 13:14:43,226 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-11-23 13:14:43,226 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-11-23 13:14:43,226 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2018-11-23 13:14:43,227 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2018-11-23 13:14:43,227 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-11-23 13:14:43,227 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-11-23 13:14:43,227 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-11-23 13:14:43,227 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-11-23 13:14:43,227 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-11-23 13:14:43,227 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-11-23 13:14:43,227 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-11-23 13:14:43,228 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-11-23 13:14:43,228 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-11-23 13:14:43,228 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-11-23 13:14:43,228 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-11-23 13:14:43,228 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-11-23 13:14:43,228 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-11-23 13:14:43,228 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-11-23 13:14:43,228 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-11-23 13:14:43,228 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-11-23 13:14:43,229 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-11-23 13:14:43,229 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-11-23 13:14:43,229 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-11-23 13:14:43,229 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-11-23 13:14:43,229 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-11-23 13:14:43,229 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-11-23 13:14:43,229 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-11-23 13:14:43,229 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-11-23 13:14:43,229 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2018-11-23 13:14:43,230 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2018-11-23 13:14:43,230 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-11-23 13:14:43,230 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-11-23 13:14:43,230 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-11-23 13:14:43,230 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-11-23 13:14:43,230 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-11-23 13:14:43,230 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-11-23 13:14:43,230 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-11-23 13:14:43,230 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-11-23 13:14:43,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-23 13:14:43,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 13:14:43,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 13:14:43,231 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-11-23 13:14:43,231 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-11-23 13:14:43,231 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-11-23 13:14:43,231 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-11-23 13:14:43,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 13:14:43,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 13:14:43,647 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 13:14:43,648 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-23 13:14:43,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:14:43 BoogieIcfgContainer [2018-11-23 13:14:43,648 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 13:14:43,649 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 13:14:43,649 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 13:14:43,651 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 13:14:43,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:14:42" (1/3) ... [2018-11-23 13:14:43,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35f71f3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:14:43, skipping insertion in model container [2018-11-23 13:14:43,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:14:43" (2/3) ... [2018-11-23 13:14:43,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35f71f3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:14:43, skipping insertion in model container [2018-11-23 13:14:43,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:14:43" (3/3) ... [2018-11-23 13:14:43,654 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product61_true-unreach-call_false-termination.cil.c [2018-11-23 13:14:43,663 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 13:14:43,669 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 13:14:43,683 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 13:14:43,710 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 13:14:43,710 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 13:14:43,710 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 13:14:43,710 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 13:14:43,710 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 13:14:43,710 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 13:14:43,711 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 13:14:43,711 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 13:14:43,727 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states. [2018-11-23 13:14:43,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-23 13:14:43,735 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:14:43,735 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 13:14:43,737 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:14:43,742 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:14:43,742 INFO L82 PathProgramCache]: Analyzing trace with hash 414454525, now seen corresponding path program 1 times [2018-11-23 13:14:43,744 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:14:43,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:14:43,775 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:14:43,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:14:43,775 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:14:43,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:14:43,926 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 13:14:43,928 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:14:43,928 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 13:14:43,928 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:14:43,931 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 13:14:43,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 13:14:43,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 13:14:43,942 INFO L87 Difference]: Start difference. First operand 166 states. Second operand 2 states. [2018-11-23 13:14:43,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:14:43,974 INFO L93 Difference]: Finished difference Result 306 states and 379 transitions. [2018-11-23 13:14:43,974 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 13:14:43,976 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-11-23 13:14:43,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:14:43,985 INFO L225 Difference]: With dead ends: 306 [2018-11-23 13:14:43,985 INFO L226 Difference]: Without dead ends: 153 [2018-11-23 13:14:43,988 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 13:14:44,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2018-11-23 13:14:44,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2018-11-23 13:14:44,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2018-11-23 13:14:44,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 181 transitions. [2018-11-23 13:14:44,029 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 181 transitions. Word has length 46 [2018-11-23 13:14:44,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:14:44,029 INFO L480 AbstractCegarLoop]: Abstraction has 153 states and 181 transitions. [2018-11-23 13:14:44,029 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 13:14:44,030 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 181 transitions. [2018-11-23 13:14:44,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-11-23 13:14:44,032 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:14:44,032 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 13:14:44,032 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:14:44,033 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:14:44,033 INFO L82 PathProgramCache]: Analyzing trace with hash -369712952, now seen corresponding path program 1 times [2018-11-23 13:14:44,033 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:14:44,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:14:44,034 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:14:44,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:14:44,034 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:14:44,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:14:44,110 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 13:14:44,110 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:14:44,110 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 13:14:44,110 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:14:44,112 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 13:14:44,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 13:14:44,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 13:14:44,112 INFO L87 Difference]: Start difference. First operand 153 states and 181 transitions. Second operand 3 states. [2018-11-23 13:14:44,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:14:44,130 INFO L93 Difference]: Finished difference Result 255 states and 301 transitions. [2018-11-23 13:14:44,131 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 13:14:44,131 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-11-23 13:14:44,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:14:44,132 INFO L225 Difference]: With dead ends: 255 [2018-11-23 13:14:44,133 INFO L226 Difference]: Without dead ends: 144 [2018-11-23 13:14:44,134 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 13:14:44,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2018-11-23 13:14:44,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2018-11-23 13:14:44,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2018-11-23 13:14:44,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 169 transitions. [2018-11-23 13:14:44,147 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 169 transitions. Word has length 47 [2018-11-23 13:14:44,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:14:44,147 INFO L480 AbstractCegarLoop]: Abstraction has 144 states and 169 transitions. [2018-11-23 13:14:44,147 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 13:14:44,147 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 169 transitions. [2018-11-23 13:14:44,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-11-23 13:14:44,149 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:14:44,149 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:14:44,149 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:14:44,149 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:14:44,149 INFO L82 PathProgramCache]: Analyzing trace with hash 928795825, now seen corresponding path program 1 times [2018-11-23 13:14:44,149 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:14:44,150 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:14:44,150 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:14:44,150 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:14:44,150 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:14:44,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:14:44,299 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 13:14:44,299 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:14:44,299 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 13:14:44,299 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:14:44,300 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 13:14:44,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 13:14:44,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-23 13:14:44,300 INFO L87 Difference]: Start difference. First operand 144 states and 169 transitions. Second operand 7 states. [2018-11-23 13:14:44,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:14:44,555 INFO L93 Difference]: Finished difference Result 264 states and 315 transitions. [2018-11-23 13:14:44,555 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 13:14:44,556 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2018-11-23 13:14:44,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:14:44,557 INFO L225 Difference]: With dead ends: 264 [2018-11-23 13:14:44,557 INFO L226 Difference]: Without dead ends: 144 [2018-11-23 13:14:44,558 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-23 13:14:44,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2018-11-23 13:14:44,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2018-11-23 13:14:44,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2018-11-23 13:14:44,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 168 transitions. [2018-11-23 13:14:44,571 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 168 transitions. Word has length 51 [2018-11-23 13:14:44,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:14:44,571 INFO L480 AbstractCegarLoop]: Abstraction has 144 states and 168 transitions. [2018-11-23 13:14:44,571 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 13:14:44,572 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 168 transitions. [2018-11-23 13:14:44,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-11-23 13:14:44,573 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:14:44,574 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:14:44,574 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:14:44,574 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:14:44,574 INFO L82 PathProgramCache]: Analyzing trace with hash 1654083998, now seen corresponding path program 1 times [2018-11-23 13:14:44,574 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:14:44,575 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:14:44,577 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:14:44,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:14:44,578 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:14:44,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:14:44,681 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 13:14:44,682 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:14:44,682 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 13:14:44,682 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:14:44,682 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 13:14:44,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 13:14:44,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 13:14:44,683 INFO L87 Difference]: Start difference. First operand 144 states and 168 transitions. Second operand 5 states. [2018-11-23 13:14:45,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:14:45,098 INFO L93 Difference]: Finished difference Result 376 states and 452 transitions. [2018-11-23 13:14:45,098 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 13:14:45,099 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 69 [2018-11-23 13:14:45,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:14:45,101 INFO L225 Difference]: With dead ends: 376 [2018-11-23 13:14:45,101 INFO L226 Difference]: Without dead ends: 256 [2018-11-23 13:14:45,102 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-23 13:14:45,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2018-11-23 13:14:45,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 238. [2018-11-23 13:14:45,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2018-11-23 13:14:45,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 268 transitions. [2018-11-23 13:14:45,126 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 268 transitions. Word has length 69 [2018-11-23 13:14:45,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:14:45,126 INFO L480 AbstractCegarLoop]: Abstraction has 238 states and 268 transitions. [2018-11-23 13:14:45,126 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 13:14:45,126 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 268 transitions. [2018-11-23 13:14:45,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-11-23 13:14:45,128 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:14:45,128 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:14:45,128 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:14:45,128 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:14:45,128 INFO L82 PathProgramCache]: Analyzing trace with hash -548786926, now seen corresponding path program 1 times [2018-11-23 13:14:45,129 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:14:45,129 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:14:45,129 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:14:45,129 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:14:45,130 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:14:45,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:14:45,234 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 13:14:45,234 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:14:45,234 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-23 13:14:45,235 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:14:45,235 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-23 13:14:45,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 13:14:45,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-11-23 13:14:45,236 INFO L87 Difference]: Start difference. First operand 238 states and 268 transitions. Second operand 10 states. [2018-11-23 13:14:45,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:14:45,574 INFO L93 Difference]: Finished difference Result 771 states and 939 transitions. [2018-11-23 13:14:45,575 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-23 13:14:45,575 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 83 [2018-11-23 13:14:45,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:14:45,579 INFO L225 Difference]: With dead ends: 771 [2018-11-23 13:14:45,579 INFO L226 Difference]: Without dead ends: 557 [2018-11-23 13:14:45,581 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2018-11-23 13:14:45,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2018-11-23 13:14:45,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 547. [2018-11-23 13:14:45,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 547 states. [2018-11-23 13:14:45,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 636 transitions. [2018-11-23 13:14:45,614 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 636 transitions. Word has length 83 [2018-11-23 13:14:45,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:14:45,615 INFO L480 AbstractCegarLoop]: Abstraction has 547 states and 636 transitions. [2018-11-23 13:14:45,615 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-23 13:14:45,615 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 636 transitions. [2018-11-23 13:14:45,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2018-11-23 13:14:45,618 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:14:45,619 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-23 13:14:45,619 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:14:45,619 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:14:45,619 INFO L82 PathProgramCache]: Analyzing trace with hash -1012913959, now seen corresponding path program 1 times [2018-11-23 13:14:45,619 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:14:45,620 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:14:45,621 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:14:45,621 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:14:45,621 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:14:45,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:14:45,697 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 17 proven. 11 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-11-23 13:14:45,697 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:14:45,698 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 13:14:45,698 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 163 with the following transitions: [2018-11-23 13:14:45,700 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [52], [55], [56], [57], [69], [72], [74], [75], [78], [81], [83], [84], [99], [102], [103], [104], [113], [117], [121], [124], [129], [135], [137], [140], [155], [156], [159], [160], [161], [163], [168], [171], [172], [173], [174], [176], [179], [183], [184], [218], [219], [225], [229], [235], [243], [247], [250], [252], [255], [258], [265], [268], [272], [273], [276], [277], [278], [279], [280], [282], [283], [284], [285], [286], [287], [288], [289], [290], [298], [299], [302], [304], [305], [312], [313], [314], [315], [318], [319], [322], [323], [324], [325], [326], [327], [334], [335], [336], [337], [338], [339], [340], [342], [343], [344], [345], [346], [347] [2018-11-23 13:14:45,731 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 13:14:45,732 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 13:14:46,078 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 13:14:46,080 INFO L272 AbstractInterpreter]: Visited 53 different actions 53 times. Never merged. Never widened. Performed 2173 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2173 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-11-23 13:14:46,111 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:14:46,112 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 13:14:46,400 INFO L227 lantSequenceWeakener]: Weakened 80 states. On average, predicates are now at 96.88% of their original sizes. [2018-11-23 13:14:46,400 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 13:14:46,450 INFO L415 sIntCurrentIteration]: We unified 161 AI predicates to 161 [2018-11-23 13:14:46,450 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 13:14:46,451 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 13:14:46,451 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [6] total 15 [2018-11-23 13:14:46,451 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:14:46,452 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-23 13:14:46,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-23 13:14:46,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2018-11-23 13:14:46,452 INFO L87 Difference]: Start difference. First operand 547 states and 636 transitions. Second operand 11 states. [2018-11-23 13:14:48,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:14:48,796 INFO L93 Difference]: Finished difference Result 1443 states and 1736 transitions. [2018-11-23 13:14:48,796 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-23 13:14:48,797 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 162 [2018-11-23 13:14:48,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:14:48,800 INFO L225 Difference]: With dead ends: 1443 [2018-11-23 13:14:48,800 INFO L226 Difference]: Without dead ends: 920 [2018-11-23 13:14:48,802 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 161 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2018-11-23 13:14:48,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 920 states. [2018-11-23 13:14:48,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 920 to 900. [2018-11-23 13:14:48,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 900 states. [2018-11-23 13:14:48,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 900 states to 900 states and 1048 transitions. [2018-11-23 13:14:48,837 INFO L78 Accepts]: Start accepts. Automaton has 900 states and 1048 transitions. Word has length 162 [2018-11-23 13:14:48,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:14:48,837 INFO L480 AbstractCegarLoop]: Abstraction has 900 states and 1048 transitions. [2018-11-23 13:14:48,837 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-23 13:14:48,837 INFO L276 IsEmpty]: Start isEmpty. Operand 900 states and 1048 transitions. [2018-11-23 13:14:48,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2018-11-23 13:14:48,840 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:14:48,841 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:14:48,841 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:14:48,841 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:14:48,841 INFO L82 PathProgramCache]: Analyzing trace with hash -2026169100, now seen corresponding path program 1 times [2018-11-23 13:14:48,841 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:14:48,842 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:14:48,843 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:14:48,843 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:14:48,843 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:14:48,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:14:48,902 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-11-23 13:14:48,903 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:14:48,903 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 13:14:48,903 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 155 with the following transitions: [2018-11-23 13:14:48,903 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [52], [55], [56], [57], [69], [72], [74], [75], [76], [77], [78], [81], [83], [84], [87], [89], [92], [99], [102], [104], [113], [117], [121], [124], [127], [129], [132], [135], [137], [140], [155], [156], [159], [160], [161], [163], [168], [171], [172], [173], [174], [176], [179], [183], [184], [189], [191], [218], [219], [222], [225], [229], [235], [238], [242], [243], [247], [250], [252], [255], [265], [268], [272], [273], [276], [277], [278], [279], [280], [282], [283], [284], [285], [286], [287], [288], [289], [290], [298], [299], [302], [304], [305], [306], [307], [308], [309], [312], [313], [314], [315], [316], [317], [318], [319], [322], [323], [324], [325], [326], [327], [332], [333], [334], [335], [336], [337], [338], [339], [340], [342], [343], [344], [345] [2018-11-23 13:14:48,906 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 13:14:48,907 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 13:14:50,961 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 13:14:50,961 INFO L272 AbstractInterpreter]: Visited 128 different actions 1222 times. Merged at 20 different actions 99 times. Widened at 1 different actions 1 times. Performed 49378 root evaluator evaluations with a maximum evaluation depth of 3. Performed 49378 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 23 fixpoints after 6 different actions. Largest state had 132 variables. [2018-11-23 13:14:50,967 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:14:50,968 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 13:14:50,968 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:14:50,968 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_22870c31-ce54-40bf-8e93-4d7359064e9c/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 13:14:50,975 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:14:50,975 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 13:14:51,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:14:51,088 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:14:51,276 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-23 13:14:51,276 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 13:14:52,288 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 17 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-11-23 13:14:52,304 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-23 13:14:52,305 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [6, 9] total 18 [2018-11-23 13:14:52,305 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:14:52,305 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-23 13:14:52,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-23 13:14:52,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2018-11-23 13:14:52,305 INFO L87 Difference]: Start difference. First operand 900 states and 1048 transitions. Second operand 8 states. [2018-11-23 13:14:52,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:14:52,549 INFO L93 Difference]: Finished difference Result 2211 states and 2615 transitions. [2018-11-23 13:14:52,555 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 13:14:52,556 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 154 [2018-11-23 13:14:52,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:14:52,559 INFO L225 Difference]: With dead ends: 2211 [2018-11-23 13:14:52,559 INFO L226 Difference]: Without dead ends: 1335 [2018-11-23 13:14:52,562 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 288 SyntacticMatches, 9 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2018-11-23 13:14:52,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1335 states. [2018-11-23 13:14:52,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1335 to 1332. [2018-11-23 13:14:52,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1332 states. [2018-11-23 13:14:52,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1332 states to 1332 states and 1537 transitions. [2018-11-23 13:14:52,605 INFO L78 Accepts]: Start accepts. Automaton has 1332 states and 1537 transitions. Word has length 154 [2018-11-23 13:14:52,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:14:52,605 INFO L480 AbstractCegarLoop]: Abstraction has 1332 states and 1537 transitions. [2018-11-23 13:14:52,605 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-23 13:14:52,605 INFO L276 IsEmpty]: Start isEmpty. Operand 1332 states and 1537 transitions. [2018-11-23 13:14:52,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2018-11-23 13:14:52,608 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:14:52,608 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:14:52,608 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:14:52,609 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:14:52,609 INFO L82 PathProgramCache]: Analyzing trace with hash 176494763, now seen corresponding path program 1 times [2018-11-23 13:14:52,609 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:14:52,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:14:52,610 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:14:52,610 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:14:52,610 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:14:52,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:14:52,664 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-11-23 13:14:52,664 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:14:52,664 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 13:14:52,665 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 151 with the following transitions: [2018-11-23 13:14:52,665 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [52], [55], [56], [57], [69], [72], [74], [75], [76], [77], [78], [82], [83], [84], [87], [89], [92], [99], [102], [104], [113], [117], [121], [124], [127], [129], [135], [137], [140], [155], [156], [159], [160], [161], [163], [168], [171], [172], [173], [174], [176], [179], [183], [184], [218], [219], [222], [225], [229], [235], [238], [242], [243], [247], [250], [252], [255], [265], [268], [272], [273], [276], [277], [278], [279], [280], [282], [283], [284], [285], [286], [287], [288], [289], [290], [298], [299], [302], [304], [305], [306], [307], [308], [309], [312], [313], [314], [315], [318], [319], [322], [323], [324], [325], [326], [327], [332], [333], [334], [335], [336], [337], [338], [339], [340], [342], [343], [344], [345] [2018-11-23 13:14:52,668 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 13:14:52,668 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 13:14:52,817 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 13:14:52,817 INFO L272 AbstractInterpreter]: Visited 60 different actions 83 times. Merged at 5 different actions 5 times. Never widened. Performed 5242 root evaluator evaluations with a maximum evaluation depth of 3. Performed 5242 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-11-23 13:14:52,827 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:14:52,827 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 13:14:52,958 INFO L227 lantSequenceWeakener]: Weakened 69 states. On average, predicates are now at 96.44% of their original sizes. [2018-11-23 13:14:52,958 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 13:14:53,029 INFO L415 sIntCurrentIteration]: We unified 149 AI predicates to 149 [2018-11-23 13:14:53,029 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 13:14:53,029 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 13:14:53,030 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [5] total 15 [2018-11-23 13:14:53,030 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:14:53,030 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-23 13:14:53,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-23 13:14:53,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2018-11-23 13:14:53,031 INFO L87 Difference]: Start difference. First operand 1332 states and 1537 transitions. Second operand 12 states. [2018-11-23 13:14:54,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:14:54,807 INFO L93 Difference]: Finished difference Result 3222 states and 3911 transitions. [2018-11-23 13:14:54,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-23 13:14:54,808 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 150 [2018-11-23 13:14:54,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:14:54,813 INFO L225 Difference]: With dead ends: 3222 [2018-11-23 13:14:54,814 INFO L226 Difference]: Without dead ends: 2068 [2018-11-23 13:14:54,816 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 153 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2018-11-23 13:14:54,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2068 states. [2018-11-23 13:14:54,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2068 to 1980. [2018-11-23 13:14:54,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1980 states. [2018-11-23 13:14:54,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1980 states to 1980 states and 2319 transitions. [2018-11-23 13:14:54,874 INFO L78 Accepts]: Start accepts. Automaton has 1980 states and 2319 transitions. Word has length 150 [2018-11-23 13:14:54,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:14:54,875 INFO L480 AbstractCegarLoop]: Abstraction has 1980 states and 2319 transitions. [2018-11-23 13:14:54,875 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-23 13:14:54,875 INFO L276 IsEmpty]: Start isEmpty. Operand 1980 states and 2319 transitions. [2018-11-23 13:14:54,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2018-11-23 13:14:54,877 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:14:54,877 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:14:54,877 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:14:54,878 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:14:54,878 INFO L82 PathProgramCache]: Analyzing trace with hash -1442480151, now seen corresponding path program 1 times [2018-11-23 13:14:54,878 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:14:54,878 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:14:54,878 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:14:54,879 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:14:54,879 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:14:54,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:14:54,966 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-11-23 13:14:54,966 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:14:54,967 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-23 13:14:54,967 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:14:54,967 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 13:14:54,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 13:14:54,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-23 13:14:54,968 INFO L87 Difference]: Start difference. First operand 1980 states and 2319 transitions. Second operand 9 states. [2018-11-23 13:14:55,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:14:55,409 INFO L93 Difference]: Finished difference Result 2816 states and 3323 transitions. [2018-11-23 13:14:55,409 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-23 13:14:55,410 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 150 [2018-11-23 13:14:55,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:14:55,414 INFO L225 Difference]: With dead ends: 2816 [2018-11-23 13:14:55,415 INFO L226 Difference]: Without dead ends: 1861 [2018-11-23 13:14:55,417 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2018-11-23 13:14:55,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1861 states. [2018-11-23 13:14:55,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1861 to 1846. [2018-11-23 13:14:55,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1846 states. [2018-11-23 13:14:55,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1846 states to 1846 states and 2147 transitions. [2018-11-23 13:14:55,470 INFO L78 Accepts]: Start accepts. Automaton has 1846 states and 2147 transitions. Word has length 150 [2018-11-23 13:14:55,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:14:55,470 INFO L480 AbstractCegarLoop]: Abstraction has 1846 states and 2147 transitions. [2018-11-23 13:14:55,471 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-23 13:14:55,471 INFO L276 IsEmpty]: Start isEmpty. Operand 1846 states and 2147 transitions. [2018-11-23 13:14:55,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2018-11-23 13:14:55,473 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:14:55,473 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:14:55,473 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:14:55,473 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:14:55,474 INFO L82 PathProgramCache]: Analyzing trace with hash 1048238902, now seen corresponding path program 1 times [2018-11-23 13:14:55,474 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:14:55,474 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:14:55,474 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:14:55,474 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:14:55,475 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:14:55,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:14:55,533 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-11-23 13:14:55,533 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:14:55,533 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 13:14:55,533 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 151 with the following transitions: [2018-11-23 13:14:55,533 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [52], [55], [56], [57], [69], [72], [74], [75], [76], [77], [78], [81], [83], [84], [87], [89], [92], [99], [102], [104], [113], [117], [121], [127], [129], [132], [135], [137], [140], [155], [156], [159], [160], [161], [163], [168], [171], [172], [173], [174], [176], [179], [183], [184], [189], [191], [218], [219], [222], [225], [229], [235], [238], [242], [243], [247], [250], [252], [255], [265], [273], [276], [277], [278], [279], [280], [282], [283], [284], [285], [286], [287], [288], [289], [290], [298], [299], [302], [304], [305], [306], [307], [308], [309], [312], [313], [316], [317], [318], [319], [322], [323], [324], [325], [326], [327], [332], [333], [334], [335], [336], [337], [338], [339], [340], [342], [343], [344], [345] [2018-11-23 13:14:55,536 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 13:14:55,536 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 13:14:56,999 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 13:14:56,999 INFO L272 AbstractInterpreter]: Visited 123 different actions 1037 times. Merged at 18 different actions 77 times. Never widened. Performed 41480 root evaluator evaluations with a maximum evaluation depth of 3. Performed 41480 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 14 fixpoints after 4 different actions. Largest state had 132 variables. [2018-11-23 13:14:57,003 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:14:57,003 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 13:14:57,003 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:14:57,003 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_22870c31-ce54-40bf-8e93-4d7359064e9c/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 13:14:57,009 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:14:57,010 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 13:14:57,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:14:57,082 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:14:57,106 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-23 13:14:57,106 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 13:14:57,285 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-11-23 13:14:57,303 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-23 13:14:57,303 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 6 [2018-11-23 13:14:57,303 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:14:57,303 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 13:14:57,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 13:14:57,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-23 13:14:57,303 INFO L87 Difference]: Start difference. First operand 1846 states and 2147 transitions. Second operand 6 states. [2018-11-23 13:14:57,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:14:57,354 INFO L93 Difference]: Finished difference Result 3770 states and 4532 transitions. [2018-11-23 13:14:57,354 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 13:14:57,354 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 150 [2018-11-23 13:14:57,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:14:57,360 INFO L225 Difference]: With dead ends: 3770 [2018-11-23 13:14:57,360 INFO L226 Difference]: Without dead ends: 1948 [2018-11-23 13:14:57,363 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 297 SyntacticMatches, 4 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 13:14:57,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1948 states. [2018-11-23 13:14:57,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1948 to 1916. [2018-11-23 13:14:57,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1916 states. [2018-11-23 13:14:57,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1916 states to 1916 states and 2221 transitions. [2018-11-23 13:14:57,417 INFO L78 Accepts]: Start accepts. Automaton has 1916 states and 2221 transitions. Word has length 150 [2018-11-23 13:14:57,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:14:57,417 INFO L480 AbstractCegarLoop]: Abstraction has 1916 states and 2221 transitions. [2018-11-23 13:14:57,417 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 13:14:57,417 INFO L276 IsEmpty]: Start isEmpty. Operand 1916 states and 2221 transitions. [2018-11-23 13:14:57,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2018-11-23 13:14:57,419 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:14:57,419 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:14:57,420 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:14:57,420 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:14:57,420 INFO L82 PathProgramCache]: Analyzing trace with hash -858164364, now seen corresponding path program 1 times [2018-11-23 13:14:57,420 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:14:57,421 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:14:57,421 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:14:57,421 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:14:57,421 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:14:57,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:14:57,489 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-11-23 13:14:57,489 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:14:57,490 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 13:14:57,490 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 151 with the following transitions: [2018-11-23 13:14:57,490 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [52], [55], [56], [57], [69], [72], [74], [75], [76], [77], [78], [81], [83], [84], [87], [89], [92], [99], [102], [104], [113], [117], [121], [127], [129], [132], [135], [137], [140], [155], [156], [159], [160], [161], [163], [168], [171], [172], [173], [174], [176], [181], [183], [184], [189], [191], [218], [219], [222], [225], [229], [235], [238], [242], [243], [247], [250], [252], [255], [265], [273], [276], [277], [278], [279], [280], [282], [283], [284], [285], [286], [287], [288], [289], [290], [298], [299], [302], [304], [305], [306], [307], [308], [309], [312], [313], [316], [317], [318], [319], [322], [323], [324], [325], [326], [327], [332], [333], [334], [335], [336], [337], [338], [339], [340], [342], [343], [344], [345] [2018-11-23 13:14:57,492 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 13:14:57,492 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 13:14:57,642 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 13:14:57,642 INFO L272 AbstractInterpreter]: Visited 60 different actions 85 times. Merged at 3 different actions 3 times. Never widened. Performed 5237 root evaluator evaluations with a maximum evaluation depth of 3. Performed 5237 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-11-23 13:14:57,656 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:14:57,656 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 13:14:57,832 INFO L227 lantSequenceWeakener]: Weakened 69 states. On average, predicates are now at 96.45% of their original sizes. [2018-11-23 13:14:57,832 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 13:14:57,900 INFO L415 sIntCurrentIteration]: We unified 149 AI predicates to 149 [2018-11-23 13:14:57,900 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 13:14:57,900 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 13:14:57,900 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [8] total 18 [2018-11-23 13:14:57,900 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:14:57,901 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-23 13:14:57,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-23 13:14:57,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2018-11-23 13:14:57,901 INFO L87 Difference]: Start difference. First operand 1916 states and 2221 transitions. Second operand 12 states. [2018-11-23 13:14:58,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:14:58,790 INFO L93 Difference]: Finished difference Result 3070 states and 3554 transitions. [2018-11-23 13:14:58,791 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-23 13:14:58,791 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 150 [2018-11-23 13:14:58,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:14:58,795 INFO L225 Difference]: With dead ends: 3070 [2018-11-23 13:14:58,795 INFO L226 Difference]: Without dead ends: 1178 [2018-11-23 13:14:58,798 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 156 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2018-11-23 13:14:58,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1178 states. [2018-11-23 13:14:58,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1178 to 1178. [2018-11-23 13:14:58,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1178 states. [2018-11-23 13:14:58,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1178 states to 1178 states and 1331 transitions. [2018-11-23 13:14:58,852 INFO L78 Accepts]: Start accepts. Automaton has 1178 states and 1331 transitions. Word has length 150 [2018-11-23 13:14:58,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:14:58,852 INFO L480 AbstractCegarLoop]: Abstraction has 1178 states and 1331 transitions. [2018-11-23 13:14:58,852 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-23 13:14:58,852 INFO L276 IsEmpty]: Start isEmpty. Operand 1178 states and 1331 transitions. [2018-11-23 13:14:58,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2018-11-23 13:14:58,855 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:14:58,855 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:14:58,855 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:14:58,855 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:14:58,855 INFO L82 PathProgramCache]: Analyzing trace with hash 1950280525, now seen corresponding path program 1 times [2018-11-23 13:14:58,855 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:14:58,856 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:14:58,856 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:14:58,856 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:14:58,856 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:14:58,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:14:58,930 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-11-23 13:14:58,930 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:14:58,930 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 13:14:58,930 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:14:58,931 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 13:14:58,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 13:14:58,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-23 13:14:58,931 INFO L87 Difference]: Start difference. First operand 1178 states and 1331 transitions. Second operand 6 states. [2018-11-23 13:14:59,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:14:59,107 INFO L93 Difference]: Finished difference Result 1189 states and 1343 transitions. [2018-11-23 13:14:59,108 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 13:14:59,108 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 154 [2018-11-23 13:14:59,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:14:59,113 INFO L225 Difference]: With dead ends: 1189 [2018-11-23 13:14:59,113 INFO L226 Difference]: Without dead ends: 1186 [2018-11-23 13:14:59,114 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-23 13:14:59,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1186 states. [2018-11-23 13:14:59,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1186 to 1178. [2018-11-23 13:14:59,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1178 states. [2018-11-23 13:14:59,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1178 states to 1178 states and 1329 transitions. [2018-11-23 13:14:59,162 INFO L78 Accepts]: Start accepts. Automaton has 1178 states and 1329 transitions. Word has length 154 [2018-11-23 13:14:59,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:14:59,162 INFO L480 AbstractCegarLoop]: Abstraction has 1178 states and 1329 transitions. [2018-11-23 13:14:59,162 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 13:14:59,162 INFO L276 IsEmpty]: Start isEmpty. Operand 1178 states and 1329 transitions. [2018-11-23 13:14:59,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2018-11-23 13:14:59,165 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:14:59,165 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:14:59,165 INFO L423 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:14:59,165 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:14:59,165 INFO L82 PathProgramCache]: Analyzing trace with hash -327634403, now seen corresponding path program 1 times [2018-11-23 13:14:59,165 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:14:59,166 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:14:59,166 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:14:59,166 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:14:59,166 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:14:59,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:14:59,304 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2018-11-23 13:14:59,304 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:14:59,304 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-23 13:14:59,304 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:14:59,305 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 13:14:59,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 13:14:59,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-23 13:14:59,305 INFO L87 Difference]: Start difference. First operand 1178 states and 1329 transitions. Second operand 9 states. [2018-11-23 13:14:59,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:14:59,397 INFO L93 Difference]: Finished difference Result 1843 states and 2105 transitions. [2018-11-23 13:14:59,398 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-23 13:14:59,398 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2018-11-23 13:14:59,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:14:59,404 INFO L225 Difference]: With dead ends: 1843 [2018-11-23 13:14:59,404 INFO L226 Difference]: Without dead ends: 1194 [2018-11-23 13:14:59,406 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-11-23 13:14:59,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1194 states. [2018-11-23 13:14:59,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1194 to 1188. [2018-11-23 13:14:59,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1188 states. [2018-11-23 13:14:59,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1188 states to 1188 states and 1339 transitions. [2018-11-23 13:14:59,457 INFO L78 Accepts]: Start accepts. Automaton has 1188 states and 1339 transitions. Word has length 172 [2018-11-23 13:14:59,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:14:59,457 INFO L480 AbstractCegarLoop]: Abstraction has 1188 states and 1339 transitions. [2018-11-23 13:14:59,457 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-23 13:14:59,457 INFO L276 IsEmpty]: Start isEmpty. Operand 1188 states and 1339 transitions. [2018-11-23 13:14:59,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2018-11-23 13:14:59,460 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:14:59,460 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:14:59,460 INFO L423 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:14:59,461 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:14:59,461 INFO L82 PathProgramCache]: Analyzing trace with hash 1916348895, now seen corresponding path program 1 times [2018-11-23 13:14:59,461 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:14:59,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:14:59,461 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:14:59,462 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:14:59,462 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:14:59,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:14:59,594 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 18 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-11-23 13:14:59,594 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:14:59,594 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 13:14:59,594 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 173 with the following transitions: [2018-11-23 13:14:59,594 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [48], [52], [55], [56], [57], [58], [60], [63], [67], [68], [69], [72], [74], [75], [78], [82], [83], [84], [87], [89], [95], [99], [102], [103], [104], [113], [117], [121], [124], [127], [129], [135], [137], [140], [155], [156], [157], [158], [159], [160], [161], [163], [168], [171], [172], [173], [174], [176], [181], [183], [184], [218], [219], [222], [225], [229], [235], [238], [242], [243], [247], [250], [252], [255], [262], [265], [268], [272], [273], [276], [277], [278], [279], [280], [282], [283], [284], [285], [286], [287], [288], [289], [290], [292], [293], [296], [297], [298], [299], [300], [301], [302], [304], [305], [306], [307], [310], [311], [312], [313], [314], [315], [318], [319], [322], [323], [324], [325], [326], [327], [332], [333], [334], [335], [336], [337], [338], [339], [340], [342], [343], [344], [345], [348], [349] [2018-11-23 13:14:59,595 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 13:14:59,596 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 13:15:00,338 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 13:15:00,338 INFO L272 AbstractInterpreter]: Visited 141 different actions 679 times. Merged at 15 different actions 42 times. Never widened. Performed 20968 root evaluator evaluations with a maximum evaluation depth of 5. Performed 20968 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 9 fixpoints after 3 different actions. Largest state had 132 variables. [2018-11-23 13:15:00,339 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:15:00,339 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 13:15:00,339 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:15:00,339 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_22870c31-ce54-40bf-8e93-4d7359064e9c/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 13:15:00,345 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:15:00,345 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 13:15:00,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:15:00,413 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:15:00,477 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 18 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:15:00,477 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 13:15:00,654 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 18 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-11-23 13:15:00,670 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 13:15:00,670 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 17 [2018-11-23 13:15:00,670 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 13:15:00,670 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-23 13:15:00,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-23 13:15:00,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2018-11-23 13:15:00,671 INFO L87 Difference]: Start difference. First operand 1188 states and 1339 transitions. Second operand 14 states. [2018-11-23 13:15:01,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:15:01,858 INFO L93 Difference]: Finished difference Result 2321 states and 2932 transitions. [2018-11-23 13:15:01,859 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-23 13:15:01,859 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 172 [2018-11-23 13:15:01,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:15:01,867 INFO L225 Difference]: With dead ends: 2321 [2018-11-23 13:15:01,867 INFO L226 Difference]: Without dead ends: 1662 [2018-11-23 13:15:01,870 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 338 SyntacticMatches, 7 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=219, Invalid=651, Unknown=0, NotChecked=0, Total=870 [2018-11-23 13:15:01,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1662 states. [2018-11-23 13:15:01,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1662 to 1435. [2018-11-23 13:15:01,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1435 states. [2018-11-23 13:15:01,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1435 states to 1435 states and 1640 transitions. [2018-11-23 13:15:01,936 INFO L78 Accepts]: Start accepts. Automaton has 1435 states and 1640 transitions. Word has length 172 [2018-11-23 13:15:01,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:15:01,937 INFO L480 AbstractCegarLoop]: Abstraction has 1435 states and 1640 transitions. [2018-11-23 13:15:01,937 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-23 13:15:01,937 INFO L276 IsEmpty]: Start isEmpty. Operand 1435 states and 1640 transitions. [2018-11-23 13:15:01,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2018-11-23 13:15:01,941 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:15:01,941 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2018-11-23 13:15:01,941 INFO L423 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:15:01,942 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:15:01,942 INFO L82 PathProgramCache]: Analyzing trace with hash 1548542198, now seen corresponding path program 2 times [2018-11-23 13:15:01,942 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:15:01,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:15:01,942 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:15:01,943 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:15:01,943 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:15:01,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:15:02,034 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 45 proven. 14 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2018-11-23 13:15:02,034 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:15:02,034 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 13:15:02,034 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-11-23 13:15:02,034 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-23 13:15:02,035 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:15:02,035 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_22870c31-ce54-40bf-8e93-4d7359064e9c/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 13:15:02,046 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-23 13:15:02,046 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-11-23 13:15:02,153 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2018-11-23 13:15:02,153 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 13:15:02,161 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:15:02,278 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-11-23 13:15:02,278 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 13:15:02,672 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 45 proven. 14 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2018-11-23 13:15:02,691 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-23 13:15:02,691 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [8, 8] total 15 [2018-11-23 13:15:02,691 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:15:02,691 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 13:15:02,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 13:15:02,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2018-11-23 13:15:02,693 INFO L87 Difference]: Start difference. First operand 1435 states and 1640 transitions. Second operand 9 states. [2018-11-23 13:15:03,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:15:03,597 INFO L93 Difference]: Finished difference Result 3156 states and 3738 transitions. [2018-11-23 13:15:03,597 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-11-23 13:15:03,597 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 241 [2018-11-23 13:15:03,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:15:03,605 INFO L225 Difference]: With dead ends: 3156 [2018-11-23 13:15:03,605 INFO L226 Difference]: Without dead ends: 2250 [2018-11-23 13:15:03,608 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 504 GetRequests, 476 SyntacticMatches, 3 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=170, Invalid=532, Unknown=0, NotChecked=0, Total=702 [2018-11-23 13:15:03,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2250 states. [2018-11-23 13:15:03,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2250 to 2222. [2018-11-23 13:15:03,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2222 states. [2018-11-23 13:15:03,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2222 states to 2222 states and 2526 transitions. [2018-11-23 13:15:03,703 INFO L78 Accepts]: Start accepts. Automaton has 2222 states and 2526 transitions. Word has length 241 [2018-11-23 13:15:03,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:15:03,704 INFO L480 AbstractCegarLoop]: Abstraction has 2222 states and 2526 transitions. [2018-11-23 13:15:03,704 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-23 13:15:03,704 INFO L276 IsEmpty]: Start isEmpty. Operand 2222 states and 2526 transitions. [2018-11-23 13:15:03,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2018-11-23 13:15:03,709 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:15:03,710 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-11-23 13:15:03,710 INFO L423 AbstractCegarLoop]: === Iteration 16 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:15:03,710 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:15:03,710 INFO L82 PathProgramCache]: Analyzing trace with hash -1456786055, now seen corresponding path program 1 times [2018-11-23 13:15:03,710 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:15:03,711 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:15:03,711 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 13:15:03,711 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:15:03,711 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:15:03,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:15:03,824 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 75 proven. 6 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2018-11-23 13:15:03,824 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:15:03,824 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 13:15:03,824 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 299 with the following transitions: [2018-11-23 13:15:03,825 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [40], [42], [48], [52], [55], [56], [57], [58], [60], [63], [67], [68], [69], [72], [74], [75], [76], [77], [78], [81], [82], [83], [84], [87], [89], [92], [95], [99], [102], [103], [104], [113], [117], [121], [124], [127], [129], [132], [135], [137], [140], [155], [156], [157], [158], [159], [160], [161], [163], [168], [171], [172], [173], [174], [176], [181], [183], [184], [187], [189], [191], [218], [219], [222], [225], [229], [235], [238], [242], [243], [247], [250], [252], [255], [262], [265], [268], [272], [273], [276], [277], [278], [279], [280], [282], [283], [284], [285], [286], [287], [288], [289], [290], [292], [293], [296], [297], [298], [299], [300], [301], [302], [304], [305], [306], [307], [308], [309], [310], [311], [312], [313], [314], [315], [316], [317], [318], [319], [322], [323], [324], [325], [326], [327], [332], [333], [334], [335], [336], [337], [338], [339], [340], [342], [343], [344], [345], [348], [349] [2018-11-23 13:15:03,828 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 13:15:03,828 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 13:15:05,941 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 13:15:05,941 INFO L272 AbstractInterpreter]: Visited 153 different actions 1515 times. Merged at 27 different actions 174 times. Never widened. Performed 61895 root evaluator evaluations with a maximum evaluation depth of 5. Performed 61895 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 29 fixpoints after 6 different actions. Largest state had 132 variables. [2018-11-23 13:15:05,942 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:15:05,942 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 13:15:05,942 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:15:05,942 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_22870c31-ce54-40bf-8e93-4d7359064e9c/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 13:15:05,949 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:15:05,949 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 13:15:06,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:15:06,029 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:15:06,092 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 165 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2018-11-23 13:15:06,092 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 13:15:06,337 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 75 proven. 6 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2018-11-23 13:15:06,353 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-23 13:15:06,354 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 5] total 11 [2018-11-23 13:15:06,354 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:15:06,354 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 13:15:06,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 13:15:06,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-11-23 13:15:06,354 INFO L87 Difference]: Start difference. First operand 2222 states and 2526 transitions. Second operand 5 states. [2018-11-23 13:15:06,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:15:06,393 INFO L93 Difference]: Finished difference Result 2812 states and 3220 transitions. [2018-11-23 13:15:06,393 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 13:15:06,393 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 298 [2018-11-23 13:15:06,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:15:06,394 INFO L225 Difference]: With dead ends: 2812 [2018-11-23 13:15:06,394 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 13:15:06,398 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 605 GetRequests, 593 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 13:15:06,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 13:15:06,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 13:15:06,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 13:15:06,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 13:15:06,399 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 298 [2018-11-23 13:15:06,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:15:06,399 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 13:15:06,399 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 13:15:06,399 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 13:15:06,399 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 13:15:06,403 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 13:15:06,538 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:15:06,544 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:15:06,545 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:15:06,548 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:15:06,549 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:15:06,549 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:15:06,550 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:15:06,551 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:15:06,552 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:15:06,553 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:15:06,554 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:15:06,554 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:15:06,555 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:15:06,651 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:15:06,656 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:15:06,658 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:15:06,658 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:15:06,663 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:15:06,664 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:15:06,670 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:15:06,670 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:15:06,674 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:15:06,674 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:15:06,682 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:15:06,682 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:15:06,690 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:15:06,693 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:15:06,695 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:15:06,697 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:15:06,697 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:15:06,700 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:15:06,700 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:15:06,701 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:15:06,747 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:15:06,749 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:15:06,751 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:15:06,752 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:15:06,753 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:15:06,754 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:15:06,754 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:15:06,755 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:15:06,756 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:15:06,757 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:15:06,758 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:15:06,759 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:15:06,759 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:15:06,760 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:15:06,980 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:15:06,980 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:15:07,080 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:15:07,081 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:15:07,082 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:15:07,083 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:15:07,086 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 13:15:07,249 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 19 [2018-11-23 13:15:07,845 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 31 [2018-11-23 13:15:07,961 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 35 [2018-11-23 13:15:08,084 WARN L180 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 31 [2018-11-23 13:15:08,406 WARN L180 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 37 [2018-11-23 13:15:09,589 WARN L180 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 42 [2018-11-23 13:15:09,694 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 31 [2018-11-23 13:15:09,696 INFO L451 ceAbstractionStarter]: At program point select_helpersFINAL(lines 70 76) the Hoare annotation is: true [2018-11-23 13:15:09,697 INFO L448 ceAbstractionStarter]: For program point select_helpersEXIT(lines 70 76) no Hoare annotation was computed. [2018-11-23 13:15:09,697 INFO L448 ceAbstractionStarter]: For program point valid_productEXIT(lines 77 85) no Hoare annotation was computed. [2018-11-23 13:15:09,697 INFO L451 ceAbstractionStarter]: At program point valid_productENTRY(lines 77 85) the Hoare annotation is: true [2018-11-23 13:15:09,697 INFO L448 ceAbstractionStarter]: For program point valid_productFINAL(lines 77 85) no Hoare annotation was computed. [2018-11-23 13:15:09,697 INFO L451 ceAbstractionStarter]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 510 534) the Hoare annotation is: true [2018-11-23 13:15:09,697 INFO L448 ceAbstractionStarter]: For program point __utac_acc__Specification4_spec__1EXIT(lines 510 534) no Hoare annotation was computed. [2018-11-23 13:15:09,697 INFO L444 ceAbstractionStarter]: At program point L524(line 524) the Hoare annotation is: (let ((.cse0 (not (= 0 ~pumpRunning~0))) (.cse1 (< ~waterLevel~0 1)) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2) (or (< ~waterLevel~0 2) .cse2 .cse3))) [2018-11-23 13:15:09,697 INFO L448 ceAbstractionStarter]: For program point L522(lines 522 528) no Hoare annotation was computed. [2018-11-23 13:15:09,697 INFO L444 ceAbstractionStarter]: At program point L520(line 520) the Hoare annotation is: (let ((.cse0 (not (= 0 ~pumpRunning~0))) (.cse1 (< ~waterLevel~0 1)) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2) (or (< ~waterLevel~0 2) .cse2 .cse3))) [2018-11-23 13:15:09,697 INFO L448 ceAbstractionStarter]: For program point L520-1(line 520) no Hoare annotation was computed. [2018-11-23 13:15:09,697 INFO L448 ceAbstractionStarter]: For program point L518(lines 518 531) no Hoare annotation was computed. [2018-11-23 13:15:09,697 INFO L448 ceAbstractionStarter]: For program point L518-1(lines 510 534) no Hoare annotation was computed. [2018-11-23 13:15:09,697 INFO L451 ceAbstractionStarter]: At program point L516(line 516) the Hoare annotation is: true [2018-11-23 13:15:09,698 INFO L448 ceAbstractionStarter]: For program point L516-1(line 516) no Hoare annotation was computed. [2018-11-23 13:15:09,698 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 974 996) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 13:15:09,698 INFO L444 ceAbstractionStarter]: At program point L986(line 986) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= main_~tmp~11 ~systemActive~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 13:15:09,698 INFO L444 ceAbstractionStarter]: At program point L986-1(line 986) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= main_~tmp~11 ~systemActive~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 13:15:09,698 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 974 996) no Hoare annotation was computed. [2018-11-23 13:15:09,698 INFO L448 ceAbstractionStarter]: For program point L984(lines 984 991) no Hoare annotation was computed. [2018-11-23 13:15:09,698 INFO L448 ceAbstractionStarter]: For program point L984-1(lines 984 991) no Hoare annotation was computed. [2018-11-23 13:15:09,698 INFO L448 ceAbstractionStarter]: For program point L982(line 982) no Hoare annotation was computed. [2018-11-23 13:15:09,698 INFO L444 ceAbstractionStarter]: At program point L981(line 981) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 13:15:09,698 INFO L444 ceAbstractionStarter]: At program point L980(line 980) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 13:15:09,698 INFO L444 ceAbstractionStarter]: At program point L980-1(line 980) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 13:15:09,699 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 974 996) no Hoare annotation was computed. [2018-11-23 13:15:09,699 INFO L444 ceAbstractionStarter]: At program point L178(line 178) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1))) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (< ~methaneLevelCritical~0 1) (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1 .cse2) (or .cse0 (= |old(~pumpRunning~0)| 0) .cse1 .cse3) (or .cse0 .cse1 .cse3 .cse2))) [2018-11-23 13:15:09,699 INFO L448 ceAbstractionStarter]: For program point L178-1(lines 159 183) no Hoare annotation was computed. [2018-11-23 13:15:09,699 INFO L444 ceAbstractionStarter]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 159 183) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (< ~methaneLevelCritical~0 1) (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1 .cse2) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) .cse2))) [2018-11-23 13:15:09,699 INFO L444 ceAbstractionStarter]: At program point L173(line 173) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or (< ~methaneLevelCritical~0 1) (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))))) [2018-11-23 13:15:09,699 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 159 183) no Hoare annotation was computed. [2018-11-23 13:15:09,699 INFO L444 ceAbstractionStarter]: At program point L169(line 169) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (< ~waterLevel~0 1)) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (not (= ~methaneLevelCritical~0 0)))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 .cse3) (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse1 .cse2 .cse3))) [2018-11-23 13:15:09,699 INFO L448 ceAbstractionStarter]: For program point L167(lines 167 175) no Hoare annotation was computed. [2018-11-23 13:15:09,700 INFO L444 ceAbstractionStarter]: At program point L165(line 165) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (< ~waterLevel~0 1)) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (not (= ~methaneLevelCritical~0 0)))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse3))) [2018-11-23 13:15:09,700 INFO L448 ceAbstractionStarter]: For program point L165-1(line 165) no Hoare annotation was computed. [2018-11-23 13:15:09,700 INFO L448 ceAbstractionStarter]: For program point L163(lines 163 180) no Hoare annotation was computed. [2018-11-23 13:15:09,700 INFO L448 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 254 262) no Hoare annotation was computed. [2018-11-23 13:15:09,700 INFO L451 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 254 262) the Hoare annotation is: true [2018-11-23 13:15:09,700 INFO L448 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 254 262) no Hoare annotation was computed. [2018-11-23 13:15:09,700 INFO L451 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 318 336) the Hoare annotation is: true [2018-11-23 13:15:09,700 INFO L448 ceAbstractionStarter]: For program point L327(lines 327 331) no Hoare annotation was computed. [2018-11-23 13:15:09,700 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 318 336) no Hoare annotation was computed. [2018-11-23 13:15:09,700 INFO L451 ceAbstractionStarter]: At program point L325(line 325) the Hoare annotation is: true [2018-11-23 13:15:09,700 INFO L448 ceAbstractionStarter]: For program point L327-2(lines 327 331) no Hoare annotation was computed. [2018-11-23 13:15:09,700 INFO L448 ceAbstractionStarter]: For program point L325-1(line 325) no Hoare annotation was computed. [2018-11-23 13:15:09,700 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 318 336) no Hoare annotation was computed. [2018-11-23 13:15:09,701 INFO L448 ceAbstractionStarter]: For program point select_featuresEXIT(lines 63 69) no Hoare annotation was computed. [2018-11-23 13:15:09,701 INFO L451 ceAbstractionStarter]: At program point select_featuresFINAL(lines 63 69) the Hoare annotation is: true [2018-11-23 13:15:09,701 INFO L444 ceAbstractionStarter]: At program point runTestENTRY(lines 964 973) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 13:15:09,701 INFO L448 ceAbstractionStarter]: For program point runTestEXIT(lines 964 973) no Hoare annotation was computed. [2018-11-23 13:15:09,701 INFO L448 ceAbstractionStarter]: For program point runTestFINAL(lines 964 973) no Hoare annotation was computed. [2018-11-23 13:15:09,701 INFO L451 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 243 253) the Hoare annotation is: true [2018-11-23 13:15:09,701 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 243 253) no Hoare annotation was computed. [2018-11-23 13:15:09,701 INFO L451 ceAbstractionStarter]: At program point L248(line 248) the Hoare annotation is: true [2018-11-23 13:15:09,701 INFO L448 ceAbstractionStarter]: For program point L248-1(line 248) no Hoare annotation was computed. [2018-11-23 13:15:09,701 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 243 253) no Hoare annotation was computed. [2018-11-23 13:15:09,701 INFO L444 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 235 242) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (= |old(~pumpRunning~0)| 0)) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))))) [2018-11-23 13:15:09,701 INFO L448 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 235 242) no Hoare annotation was computed. [2018-11-23 13:15:09,702 INFO L448 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 235 242) no Hoare annotation was computed. [2018-11-23 13:15:09,702 INFO L448 ceAbstractionStarter]: For program point L490(lines 490 496) no Hoare annotation was computed. [2018-11-23 13:15:09,702 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 486 499) no Hoare annotation was computed. [2018-11-23 13:15:09,702 INFO L451 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 486 499) the Hoare annotation is: true [2018-11-23 13:15:09,702 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 486 499) no Hoare annotation was computed. [2018-11-23 13:15:09,702 INFO L448 ceAbstractionStarter]: For program point L193(lines 193 201) no Hoare annotation was computed. [2018-11-23 13:15:09,702 INFO L444 ceAbstractionStarter]: At program point L191(line 191) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (< ~methaneLevelCritical~0 1)) (.cse2 (< ~waterLevel~0 1)) (.cse3 (not (= ~systemActive~0 1))) (.cse5 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse4 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse2 .cse3 .cse5) (or .cse2 .cse3 .cse5 .cse4))) [2018-11-23 13:15:09,702 INFO L448 ceAbstractionStarter]: For program point L191-1(line 191) no Hoare annotation was computed. [2018-11-23 13:15:09,702 INFO L448 ceAbstractionStarter]: For program point L189(lines 189 206) no Hoare annotation was computed. [2018-11-23 13:15:09,702 INFO L448 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 185 209) no Hoare annotation was computed. [2018-11-23 13:15:09,702 INFO L444 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 185 209) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) .cse2))) [2018-11-23 13:15:09,703 INFO L444 ceAbstractionStarter]: At program point L204(line 204) the Hoare annotation is: (let ((.cse0 (< ~methaneLevelCritical~0 1)) (.cse2 (= |old(~pumpRunning~0)| 0)) (.cse1 (< ~waterLevel~0 1)) (.cse3 (not (= ~systemActive~0 1))) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse4 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse3 .cse4) (or .cse1 .cse2 .cse3 .cse5) (or .cse1 .cse3 .cse5 .cse4))) [2018-11-23 13:15:09,703 INFO L448 ceAbstractionStarter]: For program point L204-1(lines 185 209) no Hoare annotation was computed. [2018-11-23 13:15:09,703 INFO L444 ceAbstractionStarter]: At program point L199(line 199) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1 .cse2) (or (and (= processEnvironment_~tmp~2 ~methaneLevelCritical~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) .cse0 .cse1 .cse2))) [2018-11-23 13:15:09,703 INFO L444 ceAbstractionStarter]: At program point L195(line 195) the Hoare annotation is: (let ((.cse0 (< ~methaneLevelCritical~0 1)) (.cse1 (< ~waterLevel~0 1)) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 (and (= processEnvironment_~tmp~2 ~methaneLevelCritical~0) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (or .cse0 (not (= 0 |old(~pumpRunning~0)|)) .cse1 .cse2) (or .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))))) [2018-11-23 13:15:09,703 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 125 131) no Hoare annotation was computed. [2018-11-23 13:15:09,703 INFO L451 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 125 131) the Hoare annotation is: true [2018-11-23 13:15:09,703 INFO L448 ceAbstractionStarter]: For program point L353(lines 353 357) no Hoare annotation was computed. [2018-11-23 13:15:09,703 INFO L444 ceAbstractionStarter]: At program point testENTRY(lines 341 404) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 13:15:09,703 INFO L448 ceAbstractionStarter]: For program point testFINAL(lines 341 404) no Hoare annotation was computed. [2018-11-23 13:15:09,704 INFO L444 ceAbstractionStarter]: At program point L397(lines 350 398) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 13:15:09,704 INFO L448 ceAbstractionStarter]: For program point L387(lines 387 391) no Hoare annotation was computed. [2018-11-23 13:15:09,704 INFO L444 ceAbstractionStarter]: At program point L387-2(lines 381 392) the Hoare annotation is: (let ((.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse4 (<= 2 ~waterLevel~0)) (.cse5 (= 0 ~methaneLevelCritical~0)) (.cse0 (= 0 ~pumpRunning~0)) (.cse2 (<= 1 ~waterLevel~0)) (.cse3 (= test_~splverifierCounter~0 0))) (or (and .cse0 .cse1 .cse2 .cse3) (not (= 0 |old(~pumpRunning~0)|)) (and .cse4 .cse1 .cse3) (and .cse5 .cse4 .cse3) (not (= ~systemActive~0 1)) (and .cse5 .cse0 .cse2 .cse3) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-23 13:15:09,704 INFO L448 ceAbstractionStarter]: For program point L352(lines 351 396) no Hoare annotation was computed. [2018-11-23 13:15:09,704 INFO L448 ceAbstractionStarter]: For program point L381(lines 381 392) no Hoare annotation was computed. [2018-11-23 13:15:09,704 INFO L444 ceAbstractionStarter]: At program point L373(line 373) the Hoare annotation is: (let ((.cse3 (= 0 ~methaneLevelCritical~0)) (.cse0 (= 0 ~pumpRunning~0)) (.cse1 (<= 1 ~waterLevel~0)) (.cse2 (= test_~splverifierCounter~0 0))) (or (and .cse0 (<= 1 ~methaneLevelCritical~0) .cse1 .cse2) (not (= 0 |old(~pumpRunning~0)|)) (and .cse3 (<= 2 ~waterLevel~0) .cse2) (not (= ~systemActive~0 1)) (and .cse3 .cse0 .cse1 .cse2) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-23 13:15:09,704 INFO L448 ceAbstractionStarter]: For program point L371(lines 371 377) no Hoare annotation was computed. [2018-11-23 13:15:09,704 INFO L448 ceAbstractionStarter]: For program point L371-1(lines 371 377) no Hoare annotation was computed. [2018-11-23 13:15:09,704 INFO L444 ceAbstractionStarter]: At program point L363(line 363) the Hoare annotation is: (let ((.cse3 (= 0 ~methaneLevelCritical~0)) (.cse0 (= 0 ~pumpRunning~0)) (.cse1 (<= 1 ~waterLevel~0)) (.cse2 (= test_~splverifierCounter~0 0))) (or (and .cse0 (<= 1 ~methaneLevelCritical~0) .cse1 .cse2) (and .cse3 (<= 2 ~waterLevel~0) .cse2) (not (= ~systemActive~0 1)) (not (= 0 |old(~pumpRunning~0)|)) (and .cse3 .cse0 .cse1 .cse2) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-23 13:15:09,705 INFO L444 ceAbstractionStarter]: At program point L394(lines 351 396) the Hoare annotation is: (let ((.cse3 (= 0 ~methaneLevelCritical~0)) (.cse0 (= 0 ~pumpRunning~0)) (.cse1 (<= 1 ~waterLevel~0)) (.cse2 (= test_~splverifierCounter~0 0))) (or (and .cse0 (<= 1 ~methaneLevelCritical~0) .cse1 .cse2) (not (= 0 |old(~pumpRunning~0)|)) (and .cse3 (<= 2 ~waterLevel~0) .cse2) (not (= ~systemActive~0 1)) (and .cse3 .cse0 .cse1 .cse2) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-23 13:15:09,705 INFO L448 ceAbstractionStarter]: For program point L361(lines 361 367) no Hoare annotation was computed. [2018-11-23 13:15:09,705 INFO L448 ceAbstractionStarter]: For program point L361-1(lines 361 367) no Hoare annotation was computed. [2018-11-23 13:15:09,705 INFO L448 ceAbstractionStarter]: For program point testEXIT(lines 341 404) no Hoare annotation was computed. [2018-11-23 13:15:09,705 INFO L444 ceAbstractionStarter]: At program point activatePump__wrappee__lowWaterSensorENTRY(lines 210 217) the Hoare annotation is: (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 2) (not (= ~methaneLevelCritical~0 0)) (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)))) [2018-11-23 13:15:09,705 INFO L448 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorFINAL(lines 210 217) no Hoare annotation was computed. [2018-11-23 13:15:09,705 INFO L448 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 210 217) no Hoare annotation was computed. [2018-11-23 13:15:09,705 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 500 508) no Hoare annotation was computed. [2018-11-23 13:15:09,705 INFO L451 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 500 508) the Hoare annotation is: true [2018-11-23 13:15:09,705 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 500 508) no Hoare annotation was computed. [2018-11-23 13:15:09,705 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-23 13:15:09,705 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 13:15:09,705 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 13:15:09,706 INFO L448 ceAbstractionStarter]: For program point L225(lines 225 231) no Hoare annotation was computed. [2018-11-23 13:15:09,706 INFO L444 ceAbstractionStarter]: At program point L223(line 223) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (< ~waterLevel~0 2)) (.cse3 (not (= ~systemActive~0 1))) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 .cse1 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))) (or (< ~methaneLevelCritical~0 1) .cse1 .cse2 .cse3 .cse0))) [2018-11-23 13:15:09,706 INFO L448 ceAbstractionStarter]: For program point L223-1(line 223) no Hoare annotation was computed. [2018-11-23 13:15:09,706 INFO L448 ceAbstractionStarter]: For program point activatePumpEXIT(lines 218 234) no Hoare annotation was computed. [2018-11-23 13:15:09,706 INFO L444 ceAbstractionStarter]: At program point activatePumpENTRY(lines 218 234) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (< ~waterLevel~0 2)) (.cse3 (not (= ~systemActive~0 1))) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 .cse1 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))) (or (< ~methaneLevelCritical~0 1) .cse1 .cse2 .cse3 .cse0))) [2018-11-23 13:15:09,706 INFO L444 ceAbstractionStarter]: At program point L229(line 229) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (< ~waterLevel~0 2)) (.cse2 (not (= ~systemActive~0 1)))) (and (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))) (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2))) [2018-11-23 13:15:09,706 INFO L448 ceAbstractionStarter]: For program point L229-1(lines 218 234) no Hoare annotation was computed. [2018-11-23 13:15:09,706 INFO L451 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 477 485) the Hoare annotation is: true [2018-11-23 13:15:09,706 INFO L448 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 477 485) no Hoare annotation was computed. [2018-11-23 13:15:09,706 INFO L448 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 477 485) no Hoare annotation was computed. [2018-11-23 13:15:09,706 INFO L448 ceAbstractionStarter]: For program point L306-1(line 306) no Hoare annotation was computed. [2018-11-23 13:15:09,706 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 299 317) no Hoare annotation was computed. [2018-11-23 13:15:09,707 INFO L451 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 299 317) the Hoare annotation is: true [2018-11-23 13:15:09,707 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 299 317) no Hoare annotation was computed. [2018-11-23 13:15:09,707 INFO L448 ceAbstractionStarter]: For program point L308(lines 308 312) no Hoare annotation was computed. [2018-11-23 13:15:09,707 INFO L451 ceAbstractionStarter]: At program point L306(line 306) the Hoare annotation is: true [2018-11-23 13:15:09,707 INFO L448 ceAbstractionStarter]: For program point L308-2(lines 308 312) no Hoare annotation was computed. [2018-11-23 13:15:09,707 INFO L444 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 433 444) the Hoare annotation is: (let ((.cse2 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse0 (not (= 0 ~pumpRunning~0))) (.cse1 (not (= ~systemActive~0 1))) (.cse3 (not (= ~waterLevel~0 1)))) (and (or (< |old(~methaneLevelCritical~0)| 1) .cse0 (< ~waterLevel~0 1) .cse1 (<= 1 ~methaneLevelCritical~0)) (or (or (or .cse1 .cse2) (< ~waterLevel~0 2)) (= 0 ~methaneLevelCritical~0)) (or .cse0 (= ~methaneLevelCritical~0 0) .cse1 .cse3 .cse2) (or (not (= |old(~methaneLevelCritical~0)| 1)) .cse0 (= ~methaneLevelCritical~0 1) .cse1 .cse3))) [2018-11-23 13:15:09,707 INFO L448 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 433 444) no Hoare annotation was computed. [2018-11-23 13:15:09,707 INFO L448 ceAbstractionStarter]: For program point L437-1(lines 433 444) no Hoare annotation was computed. [2018-11-23 13:15:09,707 INFO L451 ceAbstractionStarter]: At program point L928(lines 903 932) the Hoare annotation is: true [2018-11-23 13:15:09,707 INFO L448 ceAbstractionStarter]: For program point cleanupEXIT(lines 903 932) no Hoare annotation was computed. [2018-11-23 13:15:09,707 INFO L451 ceAbstractionStarter]: At program point cleanupENTRY(lines 903 932) the Hoare annotation is: true [2018-11-23 13:15:09,708 INFO L448 ceAbstractionStarter]: For program point L924(line 924) no Hoare annotation was computed. [2018-11-23 13:15:09,708 INFO L448 ceAbstractionStarter]: For program point L917(lines 917 921) no Hoare annotation was computed. [2018-11-23 13:15:09,708 INFO L451 ceAbstractionStarter]: At program point L917-1(lines 917 921) the Hoare annotation is: true [2018-11-23 13:15:09,708 INFO L448 ceAbstractionStarter]: For program point L914(line 914) no Hoare annotation was computed. [2018-11-23 13:15:09,708 INFO L451 ceAbstractionStarter]: At program point L913-2(lines 913 927) the Hoare annotation is: true [2018-11-23 13:15:09,708 INFO L451 ceAbstractionStarter]: At program point L909(line 909) the Hoare annotation is: true [2018-11-23 13:15:09,708 INFO L448 ceAbstractionStarter]: For program point L909-1(line 909) no Hoare annotation was computed. [2018-11-23 13:15:09,708 INFO L451 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 445 453) the Hoare annotation is: true [2018-11-23 13:15:09,708 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 445 453) no Hoare annotation was computed. [2018-11-23 13:15:09,708 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 445 453) no Hoare annotation was computed. [2018-11-23 13:15:09,708 INFO L444 ceAbstractionStarter]: At program point L114(line 114) the Hoare annotation is: (let ((.cse10 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (let ((.cse6 (not (= 0 |old(~pumpRunning~0)|))) (.cse7 (< |old(~waterLevel~0)| 1)) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse8 (and (= ~waterLevel~0 |old(~waterLevel~0)|) .cse10)) (.cse4 (and (= 0 ~pumpRunning~0) .cse10)) (.cse5 (< ~methaneLevelCritical~0 1)) (.cse1 (< |old(~waterLevel~0)| 2)) (.cse2 (not (= ~systemActive~0 1))) (.cse0 (let ((.cse9 (+ ~waterLevel~0 1))) (and (<= .cse9 |old(~waterLevel~0)|) (<= |old(~waterLevel~0)| .cse9) .cse10)))) (and (or .cse0 (or .cse1 .cse2 .cse3) .cse4) (or .cse5 .cse6 .cse7 .cse2 .cse8) (or .cse6 .cse7 .cse2 .cse3 .cse8) (or .cse4 (or .cse5 .cse1 .cse2) .cse0)))) [2018-11-23 13:15:09,709 INFO L444 ceAbstractionStarter]: At program point L112(lines 112 118) the Hoare annotation is: (let ((.cse6 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse10 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse11 (+ ~waterLevel~0 1))) (let ((.cse7 (< ~methaneLevelCritical~0 1)) (.cse0 (< |old(~waterLevel~0)| 2)) (.cse3 (<= .cse11 |old(~waterLevel~0)|)) (.cse5 (<= |old(~waterLevel~0)| .cse11)) (.cse4 (= 0 ~pumpRunning~0)) (.cse8 (not (= 0 |old(~pumpRunning~0)|))) (.cse9 (and .cse6 .cse10)) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or (or .cse0 .cse1 .cse2) (and .cse3 (not (= |old(~pumpRunning~0)| 0)) .cse4 .cse5) .cse6) (or .cse7 .cse8 (< |old(~waterLevel~0)| 1) .cse1 .cse9) (or (or .cse7 .cse0 .cse1) (and .cse3 .cse4 .cse5) (and .cse4 .cse10)) (or .cse8 .cse9 .cse1 (not (= |old(~waterLevel~0)| 1)) .cse2)))) [2018-11-23 13:15:09,709 INFO L444 ceAbstractionStarter]: At program point timeShiftENTRY(lines 101 124) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (< |old(~waterLevel~0)| 1)) (.cse6 (not (= ~methaneLevelCritical~0 0))) (.cse0 (< ~methaneLevelCritical~0 1)) (.cse5 (< |old(~waterLevel~0)| 2)) (.cse3 (not (= ~systemActive~0 1))) (.cse4 (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or (or .cse5 .cse3 .cse6) .cse4) (or .cse1 .cse2 .cse3 .cse6 .cse4) (or (or .cse0 .cse5 .cse3) .cse4))) [2018-11-23 13:15:09,709 INFO L444 ceAbstractionStarter]: At program point L107(line 107) the Hoare annotation is: (let ((.cse5 (not (= 0 |old(~pumpRunning~0)|))) (.cse6 (< |old(~waterLevel~0)| 1)) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse4 (< ~methaneLevelCritical~0 1)) (.cse0 (< |old(~waterLevel~0)| 2)) (.cse1 (not (= ~systemActive~0 1))) (.cse3 (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)))) (and (or (or .cse0 .cse1 .cse2) .cse3) (or .cse4 .cse5 .cse6 .cse1) (or .cse5 .cse6 .cse1 .cse2) (or (or .cse4 .cse0 .cse1) .cse3))) [2018-11-23 13:15:09,709 INFO L448 ceAbstractionStarter]: For program point timeShiftEXIT(lines 101 124) no Hoare annotation was computed. [2018-11-23 13:15:09,709 INFO L448 ceAbstractionStarter]: For program point L105(lines 104 123) no Hoare annotation was computed. [2018-11-23 13:15:09,709 INFO L448 ceAbstractionStarter]: For program point timeShiftFINAL(lines 101 124) no Hoare annotation was computed. [2018-11-23 13:15:09,709 INFO L444 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 409 420) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (< |old(~waterLevel~0)| 2)) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (= ~waterLevel~0 |old(~waterLevel~0)|))) (and (or (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2) .cse3) (or (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))) .cse3))) [2018-11-23 13:15:09,709 INFO L448 ceAbstractionStarter]: For program point L413-1(lines 409 420) no Hoare annotation was computed. [2018-11-23 13:15:09,709 INFO L448 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 409 420) no Hoare annotation was computed. [2018-11-23 13:15:09,709 INFO L448 ceAbstractionStarter]: For program point setupEXIT(lines 957 963) no Hoare annotation was computed. [2018-11-23 13:15:09,710 INFO L451 ceAbstractionStarter]: At program point setupFINAL(lines 957 963) the Hoare annotation is: true [2018-11-23 13:15:09,710 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 13:15:09,710 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 13:15:09,710 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 13:15:09,710 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 13:15:09,710 INFO L444 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 133 157) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (< ~waterLevel~0 1)) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0)) .cse3))) [2018-11-23 13:15:09,710 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 133 157) no Hoare annotation was computed. [2018-11-23 13:15:09,710 INFO L444 ceAbstractionStarter]: At program point L152(line 152) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (< ~waterLevel~0 1)) (.cse2 (not (= ~systemActive~0 1)))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))))) [2018-11-23 13:15:09,710 INFO L448 ceAbstractionStarter]: For program point L152-1(lines 133 157) no Hoare annotation was computed. [2018-11-23 13:15:09,710 INFO L444 ceAbstractionStarter]: At program point L147(line 147) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1))) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse2 (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)))) (and (or (< ~methaneLevelCritical~0 1) .cse0 (< ~waterLevel~0 1) .cse1 .cse2) (or (or .cse0 (< ~waterLevel~0 2) .cse1 .cse3) .cse2) (or .cse0 .cse1 (not (= ~waterLevel~0 1)) .cse3 .cse2))) [2018-11-23 13:15:09,711 INFO L444 ceAbstractionStarter]: At program point L143(line 143) the Hoare annotation is: (let ((.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1))) (.cse3 (not (= ~methaneLevelCritical~0 0)))) (and (or (< ~methaneLevelCritical~0 1) .cse0 (< ~waterLevel~0 1) .cse1 (and (<= 2 ~waterLevel~0) .cse2)) (or .cse0 .cse1 (not (= ~waterLevel~0 1)) .cse3) (or .cse2 (or .cse0 (< ~waterLevel~0 2) .cse1 .cse3)))) [2018-11-23 13:15:09,711 INFO L448 ceAbstractionStarter]: For program point L141(lines 141 149) no Hoare annotation was computed. [2018-11-23 13:15:09,711 INFO L444 ceAbstractionStarter]: At program point L139(line 139) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (< ~waterLevel~0 1)) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0)) .cse3))) [2018-11-23 13:15:09,711 INFO L448 ceAbstractionStarter]: For program point L139-1(line 139) no Hoare annotation was computed. [2018-11-23 13:15:09,711 INFO L448 ceAbstractionStarter]: For program point L137(lines 137 154) no Hoare annotation was computed. [2018-11-23 13:15:09,711 INFO L448 ceAbstractionStarter]: For program point waterRiseEXIT(lines 421 432) no Hoare annotation was computed. [2018-11-23 13:15:09,711 INFO L448 ceAbstractionStarter]: For program point L425-1(lines 421 432) no Hoare annotation was computed. [2018-11-23 13:15:09,711 INFO L444 ceAbstractionStarter]: At program point waterRiseENTRY(lines 421 432) the Hoare annotation is: (let ((.cse4 (not (= ~systemActive~0 1)))) (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse0 (< |old(~waterLevel~0)| 1)) (.cse3 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse2 (or (not (= 0 ~pumpRunning~0)) .cse4))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 (< |old(~waterLevel~0)| 2) .cse1 .cse3) (or (< ~methaneLevelCritical~0 1) .cse0 .cse3 .cse2)))) [2018-11-23 13:15:09,711 INFO L448 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 40 47) no Hoare annotation was computed. [2018-11-23 13:15:09,711 INFO L451 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 40 47) the Hoare annotation is: true [2018-11-23 13:15:09,712 INFO L448 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2018-11-23 13:15:09,712 INFO L448 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 40 47) no Hoare annotation was computed. [2018-11-23 13:15:09,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:15:09 BoogieIcfgContainer [2018-11-23 13:15:09,724 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 13:15:09,725 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 13:15:09,725 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 13:15:09,725 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 13:15:09,726 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:14:43" (3/4) ... [2018-11-23 13:15:09,729 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 13:15:09,734 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-11-23 13:15:09,734 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-11-23 13:15:09,734 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification4_spec__1 [2018-11-23 13:15:09,734 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 13:15:09,734 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2018-11-23 13:15:09,734 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-11-23 13:15:09,734 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterLevel [2018-11-23 13:15:09,734 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-11-23 13:15:09,734 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-11-23 13:15:09,734 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2018-11-23 13:15:09,735 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-11-23 13:15:09,735 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-11-23 13:15:09,735 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-11-23 13:15:09,735 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-11-23 13:15:09,735 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-11-23 13:15:09,735 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump__wrappee__lowWaterSensor [2018-11-23 13:15:09,735 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterSensorDry [2018-11-23 13:15:09,735 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 13:15:09,735 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-11-23 13:15:09,735 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure getWaterLevel [2018-11-23 13:15:09,735 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-11-23 13:15:09,735 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-11-23 13:15:09,735 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-11-23 13:15:09,735 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2018-11-23 13:15:09,736 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-11-23 13:15:09,736 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-11-23 13:15:09,736 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-11-23 13:15:09,736 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2018-11-23 13:15:09,736 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-11-23 13:15:09,736 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-11-23 13:15:09,742 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 48 nodes and edges [2018-11-23 13:15:09,743 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2018-11-23 13:15:09,743 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-23 13:15:09,743 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-23 13:15:09,743 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-23 13:15:09,744 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 13:15:09,744 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 13:15:09,765 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((0 == pumpRunning && 1 <= methaneLevelCritical) && 1 <= waterLevel) && splverifierCounter == 0) || !(0 == \old(pumpRunning))) || ((0 == methaneLevelCritical && 2 <= waterLevel) && splverifierCounter == 0)) || !(systemActive == 1)) || (((0 == methaneLevelCritical && 0 == pumpRunning) && 1 <= waterLevel) && splverifierCounter == 0)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-11-23 13:15:09,766 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(0 == \old(pumpRunning)) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-11-23 13:15:09,802 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_22870c31-ce54-40bf-8e93-4d7359064e9c/bin-2019/utaipan/witness.graphml [2018-11-23 13:15:09,803 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 13:15:09,803 INFO L168 Benchmark]: Toolchain (without parser) took 27071.02 ms. Allocated memory was 1.0 GB in the beginning and 2.7 GB in the end (delta: 1.7 GB). Free memory was 951.1 MB in the beginning and 1.4 GB in the end (delta: -497.8 MB). Peak memory consumption was 1.2 GB. Max. memory is 11.5 GB. [2018-11-23 13:15:09,804 INFO L168 Benchmark]: CDTParser took 0.12 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 13:15:09,804 INFO L168 Benchmark]: CACSL2BoogieTranslator took 386.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 951.1 MB in the beginning and 1.1 GB in the end (delta: -192.2 MB). Peak memory consumption was 32.1 MB. Max. memory is 11.5 GB. [2018-11-23 13:15:09,804 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.97 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 13:15:09,805 INFO L168 Benchmark]: Boogie Preprocessor took 32.73 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 13:15:09,805 INFO L168 Benchmark]: RCFGBuilder took 466.91 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: 60.2 MB). Peak memory consumption was 60.2 MB. Max. memory is 11.5 GB. [2018-11-23 13:15:09,805 INFO L168 Benchmark]: TraceAbstraction took 26075.72 ms. Allocated memory was 1.2 GB in the beginning and 2.7 GB in the end (delta: 1.6 GB). Free memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: -404.8 MB). Peak memory consumption was 1.5 GB. Max. memory is 11.5 GB. [2018-11-23 13:15:09,805 INFO L168 Benchmark]: Witness Printer took 77.87 ms. Allocated memory is still 2.7 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 35.6 MB). Peak memory consumption was 35.6 MB. Max. memory is 11.5 GB. [2018-11-23 13:15:09,807 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 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 386.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 951.1 MB in the beginning and 1.1 GB in the end (delta: -192.2 MB). Peak memory consumption was 32.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.97 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 32.73 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 466.91 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: 60.2 MB). Peak memory consumption was 60.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 26075.72 ms. Allocated memory was 1.2 GB in the beginning and 2.7 GB in the end (delta: 1.6 GB). Free memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: -404.8 MB). Peak memory consumption was 1.5 GB. Max. memory is 11.5 GB. * Witness Printer took 77.87 ms. Allocated memory is still 2.7 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 35.6 MB). Peak memory consumption was 35.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: 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: 351]: Loop Invariant Derived loop invariant: ((((((((0 == pumpRunning && 1 <= methaneLevelCritical) && 1 <= waterLevel) && splverifierCounter == 0) || !(0 == \old(pumpRunning))) || ((0 == methaneLevelCritical && 2 <= waterLevel) && splverifierCounter == 0)) || !(systemActive == 1)) || (((0 == methaneLevelCritical && 0 == pumpRunning) && 1 <= waterLevel) && splverifierCounter == 0)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 913]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 350]: Loop Invariant Derived loop invariant: ((!(0 == \old(pumpRunning)) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 903]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 31 procedures, 166 locations, 1 error locations. SAFE Result, 26.0s OverallTime, 16 OverallIterations, 4 TraceHistogramMax, 9.3s AutomataDifference, 0.0s DeadEndRemovalTime, 3.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 3349 SDtfs, 3071 SDslu, 10634 SDs, 0 SdLazy, 6679 SolverSat, 1016 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.5s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 2673 GetRequests, 2459 SyntacticMatches, 27 SemanticMatches, 187 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 546 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2222occurred in iteration=15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 7.1s AbstIntTime, 7 AbstIntIterations, 3 AbstIntStrong, 0.9982529177400892 AbsIntWeakeningRatio, 0.8496732026143791 AbsIntAvgWeakeningVarsNumRemoved, 37.309368191721134 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 16 MinimizatonAttempts, 455 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 69 LocationsWithAnnotation, 5579 PreInvPairs, 5714 NumberOfFragments, 2111 HoareAnnotationTreeSize, 5579 FomulaSimplifications, 9828 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 69 FomulaSimplificationsInter, 21112 FormulaSimplificationTreeSizeReductionInter, 2.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 3264 NumberOfCodeBlocks, 3189 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 4253 ConstructedInterpolants, 0 QuantifiedInterpolants, 1065517 SizeOfPredicates, 26 NumberOfNonLiveVariables, 4673 ConjunctsInSsa, 52 ConjunctsInUnsatCore, 26 InterpolantComputations, 12 PerfectInterpolantSequences, 1673/1777 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...