./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product46_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_7910ea27-6ade-41fd-9f7b-5eba932545f8/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7910ea27-6ade-41fd-9f7b-5eba932545f8/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7910ea27-6ade-41fd-9f7b-5eba932545f8/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7910ea27-6ade-41fd-9f7b-5eba932545f8/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product46_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_7910ea27-6ade-41fd-9f7b-5eba932545f8/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7910ea27-6ade-41fd-9f7b-5eba932545f8/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 e7c5f28f8e853ca099a40c34c7e85dac8d6464b4 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 11:59:24,283 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 11:59:24,284 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 11:59:24,293 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 11:59:24,293 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 11:59:24,294 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 11:59:24,295 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 11:59:24,296 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 11:59:24,297 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 11:59:24,298 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 11:59:24,299 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 11:59:24,299 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 11:59:24,300 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 11:59:24,300 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 11:59:24,301 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 11:59:24,302 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 11:59:24,302 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 11:59:24,304 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 11:59:24,305 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 11:59:24,306 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 11:59:24,307 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 11:59:24,308 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 11:59:24,310 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 11:59:24,310 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 11:59:24,310 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 11:59:24,311 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 11:59:24,312 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 11:59:24,312 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 11:59:24,313 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 11:59:24,313 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 11:59:24,314 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 11:59:24,314 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 11:59:24,314 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 11:59:24,315 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 11:59:24,315 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 11:59:24,316 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 11:59:24,316 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7910ea27-6ade-41fd-9f7b-5eba932545f8/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 11:59:24,327 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 11:59:24,327 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 11:59:24,327 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 11:59:24,328 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 11:59:24,328 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 11:59:24,328 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 11:59:24,328 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 11:59:24,328 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 11:59:24,328 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 11:59:24,328 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 11:59:24,329 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 11:59:24,329 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 11:59:24,329 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 11:59:24,329 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 11:59:24,330 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 11:59:24,330 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 11:59:24,330 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 11:59:24,330 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 11:59:24,330 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 11:59:24,330 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 11:59:24,330 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 11:59:24,331 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 11:59:24,331 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 11:59:24,331 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 11:59:24,331 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 11:59:24,331 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 11:59:24,331 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 11:59:24,331 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 11:59:24,332 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 11:59:24,332 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 11:59:24,332 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 11:59:24,332 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 11:59:24,332 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 11:59:24,332 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 11:59:24,332 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 11:59:24,332 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 11:59:24,333 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 11:59:24,333 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_7910ea27-6ade-41fd-9f7b-5eba932545f8/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 -> e7c5f28f8e853ca099a40c34c7e85dac8d6464b4 [2018-11-23 11:59:24,355 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 11:59:24,363 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 11:59:24,365 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 11:59:24,366 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 11:59:24,366 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 11:59:24,366 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7910ea27-6ade-41fd-9f7b-5eba932545f8/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product46_true-unreach-call_false-termination.cil.c [2018-11-23 11:59:24,402 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7910ea27-6ade-41fd-9f7b-5eba932545f8/bin-2019/utaipan/data/5dd674308/aeaae52b9cd04d01bf846edaca61ffbe/FLAG75a7a2a53 [2018-11-23 11:59:24,840 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 11:59:24,841 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7910ea27-6ade-41fd-9f7b-5eba932545f8/sv-benchmarks/c/product-lines/minepump_spec1_product46_true-unreach-call_false-termination.cil.c [2018-11-23 11:59:24,850 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7910ea27-6ade-41fd-9f7b-5eba932545f8/bin-2019/utaipan/data/5dd674308/aeaae52b9cd04d01bf846edaca61ffbe/FLAG75a7a2a53 [2018-11-23 11:59:24,859 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7910ea27-6ade-41fd-9f7b-5eba932545f8/bin-2019/utaipan/data/5dd674308/aeaae52b9cd04d01bf846edaca61ffbe [2018-11-23 11:59:24,861 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 11:59:24,862 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 11:59:24,863 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 11:59:24,863 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 11:59:24,865 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 11:59:24,866 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:59:24" (1/1) ... [2018-11-23 11:59:24,868 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4be3cc59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:24, skipping insertion in model container [2018-11-23 11:59:24,868 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:59:24" (1/1) ... [2018-11-23 11:59:24,873 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 11:59:24,903 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 11:59:25,092 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 11:59:25,101 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 11:59:25,207 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 11:59:25,224 INFO L195 MainTranslator]: Completed translation [2018-11-23 11:59:25,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:25 WrapperNode [2018-11-23 11:59:25,224 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 11:59:25,225 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 11:59:25,225 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 11:59:25,225 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 11:59:25,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:25" (1/1) ... [2018-11-23 11:59:25,242 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:25" (1/1) ... [2018-11-23 11:59:25,249 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 11:59:25,249 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 11:59:25,250 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 11:59:25,250 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 11:59:25,257 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:25" (1/1) ... [2018-11-23 11:59:25,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:25" (1/1) ... [2018-11-23 11:59:25,259 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:25" (1/1) ... [2018-11-23 11:59:25,259 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:25" (1/1) ... [2018-11-23 11:59:25,266 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:25" (1/1) ... [2018-11-23 11:59:25,271 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:25" (1/1) ... [2018-11-23 11:59:25,272 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:25" (1/1) ... [2018-11-23 11:59:25,274 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 11:59:25,274 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 11:59:25,274 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 11:59:25,274 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 11:59:25,275 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7910ea27-6ade-41fd-9f7b-5eba932545f8/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 11:59:25,313 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-11-23 11:59:25,313 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-11-23 11:59:25,313 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 11:59:25,313 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 11:59:25,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 11:59:25,313 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-11-23 11:59:25,313 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-11-23 11:59:25,313 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-11-23 11:59:25,313 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-11-23 11:59:25,313 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-11-23 11:59:25,314 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-11-23 11:59:25,314 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-11-23 11:59:25,314 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-11-23 11:59:25,314 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-11-23 11:59:25,314 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-11-23 11:59:25,314 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-11-23 11:59:25,314 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-11-23 11:59:25,314 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-11-23 11:59:25,315 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-11-23 11:59:25,315 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-11-23 11:59:25,315 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-11-23 11:59:25,315 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-11-23 11:59:25,315 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-11-23 11:59:25,315 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-11-23 11:59:25,315 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-11-23 11:59:25,315 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-11-23 11:59:25,316 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-11-23 11:59:25,316 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2018-11-23 11:59:25,316 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2018-11-23 11:59:25,316 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-11-23 11:59:25,316 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-11-23 11:59:25,316 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-11-23 11:59:25,316 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-11-23 11:59:25,316 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-11-23 11:59:25,316 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-11-23 11:59:25,317 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2018-11-23 11:59:25,317 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2018-11-23 11:59:25,317 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-11-23 11:59:25,317 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-11-23 11:59:25,317 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-11-23 11:59:25,317 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-11-23 11:59:25,317 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-11-23 11:59:25,317 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-11-23 11:59:25,318 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-11-23 11:59:25,318 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-11-23 11:59:25,318 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2018-11-23 11:59:25,318 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2018-11-23 11:59:25,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-23 11:59:25,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 11:59:25,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 11:59:25,318 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-11-23 11:59:25,318 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-11-23 11:59:25,319 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-11-23 11:59:25,319 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-11-23 11:59:25,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 11:59:25,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 11:59:25,319 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2018-11-23 11:59:25,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2018-11-23 11:59:25,730 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 11:59:25,731 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-23 11:59:25,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:59:25 BoogieIcfgContainer [2018-11-23 11:59:25,731 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 11:59:25,732 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 11:59:25,732 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 11:59:25,734 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 11:59:25,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:59:24" (1/3) ... [2018-11-23 11:59:25,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48af54f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:59:25, skipping insertion in model container [2018-11-23 11:59:25,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:25" (2/3) ... [2018-11-23 11:59:25,735 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48af54f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:59:25, skipping insertion in model container [2018-11-23 11:59:25,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:59:25" (3/3) ... [2018-11-23 11:59:25,736 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product46_true-unreach-call_false-termination.cil.c [2018-11-23 11:59:25,742 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 11:59:25,748 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 11:59:25,757 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 11:59:25,780 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 11:59:25,780 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 11:59:25,780 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 11:59:25,780 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 11:59:25,780 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 11:59:25,780 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 11:59:25,780 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 11:59:25,780 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 11:59:25,795 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states. [2018-11-23 11:59:25,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-23 11:59:25,801 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 11:59:25,802 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 11:59:25,804 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 11:59:25,807 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 11:59:25,807 INFO L82 PathProgramCache]: Analyzing trace with hash -462838774, now seen corresponding path program 1 times [2018-11-23 11:59:25,809 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 11:59:25,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 11:59:25,838 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 11:59:25,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 11:59:25,838 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 11:59:25,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 11:59:25,985 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 11:59:25,987 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 11:59:25,987 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 11:59:25,987 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 11:59:25,990 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 11:59:25,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 11:59:25,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 11:59:26,000 INFO L87 Difference]: Start difference. First operand 147 states. Second operand 2 states. [2018-11-23 11:59:26,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:59:26,028 INFO L93 Difference]: Finished difference Result 268 states and 333 transitions. [2018-11-23 11:59:26,028 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 11:59:26,029 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-11-23 11:59:26,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 11:59:26,038 INFO L225 Difference]: With dead ends: 268 [2018-11-23 11:59:26,038 INFO L226 Difference]: Without dead ends: 134 [2018-11-23 11:59:26,041 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 11:59:26,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2018-11-23 11:59:26,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2018-11-23 11:59:26,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2018-11-23 11:59:26,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 158 transitions. [2018-11-23 11:59:26,081 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 158 transitions. Word has length 46 [2018-11-23 11:59:26,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 11:59:26,081 INFO L480 AbstractCegarLoop]: Abstraction has 134 states and 158 transitions. [2018-11-23 11:59:26,081 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 11:59:26,082 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 158 transitions. [2018-11-23 11:59:26,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-11-23 11:59:26,084 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 11:59:26,084 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 11:59:26,085 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 11:59:26,085 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 11:59:26,085 INFO L82 PathProgramCache]: Analyzing trace with hash 2015304629, now seen corresponding path program 1 times [2018-11-23 11:59:26,085 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 11:59:26,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 11:59:26,086 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 11:59:26,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 11:59:26,087 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 11:59:26,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 11:59:26,161 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 11:59:26,161 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 11:59:26,161 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 11:59:26,161 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 11:59:26,162 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 11:59:26,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 11:59:26,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 11:59:26,163 INFO L87 Difference]: Start difference. First operand 134 states and 158 transitions. Second operand 3 states. [2018-11-23 11:59:26,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:59:26,181 INFO L93 Difference]: Finished difference Result 213 states and 251 transitions. [2018-11-23 11:59:26,181 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 11:59:26,181 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-11-23 11:59:26,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 11:59:26,183 INFO L225 Difference]: With dead ends: 213 [2018-11-23 11:59:26,183 INFO L226 Difference]: Without dead ends: 125 [2018-11-23 11:59:26,184 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 11:59:26,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2018-11-23 11:59:26,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2018-11-23 11:59:26,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2018-11-23 11:59:26,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 146 transitions. [2018-11-23 11:59:26,195 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 146 transitions. Word has length 47 [2018-11-23 11:59:26,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 11:59:26,195 INFO L480 AbstractCegarLoop]: Abstraction has 125 states and 146 transitions. [2018-11-23 11:59:26,195 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 11:59:26,196 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 146 transitions. [2018-11-23 11:59:26,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-11-23 11:59:26,197 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 11:59:26,197 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 11:59:26,197 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 11:59:26,197 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 11:59:26,197 INFO L82 PathProgramCache]: Analyzing trace with hash 1303312121, now seen corresponding path program 1 times [2018-11-23 11:59:26,198 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 11:59:26,198 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 11:59:26,198 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 11:59:26,198 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 11:59:26,199 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 11:59:26,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 11:59:26,311 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 11:59:26,311 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 11:59:26,311 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 11:59:26,311 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 11:59:26,312 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 11:59:26,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 11:59:26,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-23 11:59:26,312 INFO L87 Difference]: Start difference. First operand 125 states and 146 transitions. Second operand 7 states. [2018-11-23 11:59:26,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:59:26,527 INFO L93 Difference]: Finished difference Result 226 states and 269 transitions. [2018-11-23 11:59:26,527 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 11:59:26,527 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2018-11-23 11:59:26,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 11:59:26,528 INFO L225 Difference]: With dead ends: 226 [2018-11-23 11:59:26,528 INFO L226 Difference]: Without dead ends: 125 [2018-11-23 11:59:26,529 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-23 11:59:26,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2018-11-23 11:59:26,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2018-11-23 11:59:26,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2018-11-23 11:59:26,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 145 transitions. [2018-11-23 11:59:26,540 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 145 transitions. Word has length 52 [2018-11-23 11:59:26,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 11:59:26,541 INFO L480 AbstractCegarLoop]: Abstraction has 125 states and 145 transitions. [2018-11-23 11:59:26,541 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 11:59:26,541 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 145 transitions. [2018-11-23 11:59:26,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-11-23 11:59:26,543 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 11:59:26,543 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 11:59:26,543 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 11:59:26,543 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 11:59:26,543 INFO L82 PathProgramCache]: Analyzing trace with hash 1281182978, now seen corresponding path program 1 times [2018-11-23 11:59:26,544 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 11:59:26,544 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 11:59:26,545 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 11:59:26,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 11:59:26,545 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 11:59:26,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 11:59:26,624 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 11:59:26,624 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 11:59:26,625 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 11:59:26,625 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 11:59:26,625 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 11:59:26,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 11:59:26,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 11:59:26,626 INFO L87 Difference]: Start difference. First operand 125 states and 145 transitions. Second operand 5 states. [2018-11-23 11:59:26,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:59:26,964 INFO L93 Difference]: Finished difference Result 332 states and 400 transitions. [2018-11-23 11:59:26,964 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 11:59:26,965 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 65 [2018-11-23 11:59:26,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 11:59:26,967 INFO L225 Difference]: With dead ends: 332 [2018-11-23 11:59:26,967 INFO L226 Difference]: Without dead ends: 231 [2018-11-23 11:59:26,968 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-23 11:59:26,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2018-11-23 11:59:27,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 212. [2018-11-23 11:59:27,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2018-11-23 11:59:27,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 241 transitions. [2018-11-23 11:59:27,004 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 241 transitions. Word has length 65 [2018-11-23 11:59:27,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 11:59:27,004 INFO L480 AbstractCegarLoop]: Abstraction has 212 states and 241 transitions. [2018-11-23 11:59:27,004 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 11:59:27,004 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 241 transitions. [2018-11-23 11:59:27,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-11-23 11:59:27,006 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 11:59:27,006 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 11:59:27,006 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 11:59:27,007 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 11:59:27,007 INFO L82 PathProgramCache]: Analyzing trace with hash -1711882229, now seen corresponding path program 1 times [2018-11-23 11:59:27,007 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 11:59:27,008 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 11:59:27,008 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 11:59:27,008 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 11:59:27,008 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 11:59:27,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 11:59:27,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 11:59:27,073 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 11:59:27,073 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 11:59:27,073 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 11:59:27,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 11:59:27,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 11:59:27,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-23 11:59:27,075 INFO L87 Difference]: Start difference. First operand 212 states and 241 transitions. Second operand 6 states. [2018-11-23 11:59:27,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:59:27,209 INFO L93 Difference]: Finished difference Result 573 states and 673 transitions. [2018-11-23 11:59:27,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 11:59:27,211 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 79 [2018-11-23 11:59:27,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 11:59:27,216 INFO L225 Difference]: With dead ends: 573 [2018-11-23 11:59:27,216 INFO L226 Difference]: Without dead ends: 385 [2018-11-23 11:59:27,217 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-23 11:59:27,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2018-11-23 11:59:27,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 379. [2018-11-23 11:59:27,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2018-11-23 11:59:27,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 432 transitions. [2018-11-23 11:59:27,248 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 432 transitions. Word has length 79 [2018-11-23 11:59:27,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 11:59:27,248 INFO L480 AbstractCegarLoop]: Abstraction has 379 states and 432 transitions. [2018-11-23 11:59:27,248 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 11:59:27,249 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 432 transitions. [2018-11-23 11:59:27,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-11-23 11:59:27,251 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 11:59:27,251 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 11:59:27,252 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 11:59:27,252 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 11:59:27,252 INFO L82 PathProgramCache]: Analyzing trace with hash 1794398575, now seen corresponding path program 1 times [2018-11-23 11:59:27,252 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 11:59:27,253 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 11:59:27,253 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 11:59:27,253 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 11:59:27,253 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 11:59:27,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 11:59:27,381 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 11:59:27,381 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 11:59:27,381 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 11:59:27,382 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 11:59:27,382 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 11:59:27,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 11:59:27,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-23 11:59:27,384 INFO L87 Difference]: Start difference. First operand 379 states and 432 transitions. Second operand 7 states. [2018-11-23 11:59:27,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:59:27,777 INFO L93 Difference]: Finished difference Result 414 states and 486 transitions. [2018-11-23 11:59:27,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-23 11:59:27,778 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 83 [2018-11-23 11:59:27,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 11:59:27,780 INFO L225 Difference]: With dead ends: 414 [2018-11-23 11:59:27,780 INFO L226 Difference]: Without dead ends: 411 [2018-11-23 11:59:27,781 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-11-23 11:59:27,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2018-11-23 11:59:27,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 379. [2018-11-23 11:59:27,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2018-11-23 11:59:27,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 431 transitions. [2018-11-23 11:59:27,805 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 431 transitions. Word has length 83 [2018-11-23 11:59:27,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 11:59:27,805 INFO L480 AbstractCegarLoop]: Abstraction has 379 states and 431 transitions. [2018-11-23 11:59:27,805 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 11:59:27,805 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 431 transitions. [2018-11-23 11:59:27,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-11-23 11:59:27,808 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 11:59:27,808 INFO L402 BasicCegarLoop]: trace histogram [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] [2018-11-23 11:59:27,808 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 11:59:27,808 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 11:59:27,808 INFO L82 PathProgramCache]: Analyzing trace with hash -734701378, now seen corresponding path program 1 times [2018-11-23 11:59:27,808 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 11:59:27,809 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 11:59:27,809 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 11:59:27,809 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 11:59:27,809 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 11:59:27,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 11:59:27,872 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-23 11:59:27,872 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 11:59:27,872 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 11:59:27,872 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 11:59:27,873 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 11:59:27,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 11:59:27,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-23 11:59:27,873 INFO L87 Difference]: Start difference. First operand 379 states and 431 transitions. Second operand 6 states. [2018-11-23 11:59:27,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:59:27,910 INFO L93 Difference]: Finished difference Result 748 states and 870 transitions. [2018-11-23 11:59:27,912 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 11:59:27,912 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 99 [2018-11-23 11:59:27,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 11:59:27,914 INFO L225 Difference]: With dead ends: 748 [2018-11-23 11:59:27,914 INFO L226 Difference]: Without dead ends: 393 [2018-11-23 11:59:27,915 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-23 11:59:27,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2018-11-23 11:59:27,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 389. [2018-11-23 11:59:27,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 389 states. [2018-11-23 11:59:27,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 441 transitions. [2018-11-23 11:59:27,936 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 441 transitions. Word has length 99 [2018-11-23 11:59:27,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 11:59:27,937 INFO L480 AbstractCegarLoop]: Abstraction has 389 states and 441 transitions. [2018-11-23 11:59:27,937 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 11:59:27,937 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 441 transitions. [2018-11-23 11:59:27,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-11-23 11:59:27,938 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 11:59:27,938 INFO L402 BasicCegarLoop]: trace histogram [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] [2018-11-23 11:59:27,938 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 11:59:27,939 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 11:59:27,939 INFO L82 PathProgramCache]: Analyzing trace with hash 158784960, now seen corresponding path program 1 times [2018-11-23 11:59:27,939 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 11:59:27,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 11:59:27,939 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 11:59:27,940 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 11:59:27,940 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 11:59:27,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 11:59:28,009 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-23 11:59:28,009 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 11:59:28,009 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-23 11:59:28,009 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 11:59:28,010 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-23 11:59:28,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-23 11:59:28,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-23 11:59:28,010 INFO L87 Difference]: Start difference. First operand 389 states and 441 transitions. Second operand 8 states. [2018-11-23 11:59:28,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:59:28,048 INFO L93 Difference]: Finished difference Result 768 states and 892 transitions. [2018-11-23 11:59:28,049 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 11:59:28,049 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 99 [2018-11-23 11:59:28,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 11:59:28,051 INFO L225 Difference]: With dead ends: 768 [2018-11-23 11:59:28,051 INFO L226 Difference]: Without dead ends: 403 [2018-11-23 11:59:28,052 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-23 11:59:28,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2018-11-23 11:59:28,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 397. [2018-11-23 11:59:28,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 397 states. [2018-11-23 11:59:28,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 449 transitions. [2018-11-23 11:59:28,072 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 449 transitions. Word has length 99 [2018-11-23 11:59:28,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 11:59:28,072 INFO L480 AbstractCegarLoop]: Abstraction has 397 states and 449 transitions. [2018-11-23 11:59:28,072 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-23 11:59:28,072 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 449 transitions. [2018-11-23 11:59:28,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-11-23 11:59:28,074 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 11:59:28,074 INFO L402 BasicCegarLoop]: trace histogram [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] [2018-11-23 11:59:28,074 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 11:59:28,074 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 11:59:28,074 INFO L82 PathProgramCache]: Analyzing trace with hash 151025601, now seen corresponding path program 1 times [2018-11-23 11:59:28,074 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 11:59:28,075 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 11:59:28,075 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 11:59:28,075 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 11:59:28,075 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 11:59:28,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 11:59:28,132 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-23 11:59:28,132 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 11:59:28,132 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 11:59:28,132 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 11:59:28,132 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 11:59:28,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 11:59:28,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 11:59:28,133 INFO L87 Difference]: Start difference. First operand 397 states and 449 transitions. Second operand 4 states. [2018-11-23 11:59:28,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:59:28,306 INFO L93 Difference]: Finished difference Result 1179 states and 1402 transitions. [2018-11-23 11:59:28,307 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 11:59:28,308 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 99 [2018-11-23 11:59:28,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 11:59:28,311 INFO L225 Difference]: With dead ends: 1179 [2018-11-23 11:59:28,311 INFO L226 Difference]: Without dead ends: 806 [2018-11-23 11:59:28,312 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 11:59:28,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2018-11-23 11:59:28,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 791. [2018-11-23 11:59:28,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 791 states. [2018-11-23 11:59:28,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 791 states and 921 transitions. [2018-11-23 11:59:28,356 INFO L78 Accepts]: Start accepts. Automaton has 791 states and 921 transitions. Word has length 99 [2018-11-23 11:59:28,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 11:59:28,356 INFO L480 AbstractCegarLoop]: Abstraction has 791 states and 921 transitions. [2018-11-23 11:59:28,356 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 11:59:28,356 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states and 921 transitions. [2018-11-23 11:59:28,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2018-11-23 11:59:28,358 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 11:59:28,358 INFO L402 BasicCegarLoop]: trace histogram [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] [2018-11-23 11:59:28,358 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 11:59:28,358 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 11:59:28,358 INFO L82 PathProgramCache]: Analyzing trace with hash 291684775, now seen corresponding path program 1 times [2018-11-23 11:59:28,358 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 11:59:28,359 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 11:59:28,359 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 11:59:28,359 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 11:59:28,359 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 11:59:28,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 11:59:28,472 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-23 11:59:28,472 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 11:59:28,472 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 11:59:28,473 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 104 with the following transitions: [2018-11-23 11:59:28,474 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [21], [23], [26], [36], [37], [38], [39], [42], [44], [45], [48], [52], [53], [54], [69], [72], [74], [83], [87], [91], [94], [99], [102], [107], [113], [116], [126], [127], [128], [129], [130], [132], [137], [140], [141], [143], [148], [150], [151], [156], [158], [159], [160], [192], [196], [210], [218], [222], [223], [226], [228], [231], [233], [236], [245], [246], [247], [248], [249], [250], [251], [252], [253], [255], [256], [257], [258], [263], [265], [266], [273], [274], [275], [276], [277], [278], [281], [285], [286], [287], [288], [289], [290], [297], [298], [299], [301], [302], [303], [305], [306], [307], [308], [309] [2018-11-23 11:59:28,500 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 11:59:28,500 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 11:59:28,914 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 11:59:28,915 INFO L272 AbstractInterpreter]: Visited 77 different actions 77 times. Never merged. Never widened. Performed 2601 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2601 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-11-23 11:59:28,923 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 11:59:28,923 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 11:59:29,131 INFO L227 lantSequenceWeakener]: Weakened 75 states. On average, predicates are now at 97.26% of their original sizes. [2018-11-23 11:59:29,131 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 11:59:29,244 INFO L415 sIntCurrentIteration]: We unified 102 AI predicates to 102 [2018-11-23 11:59:29,244 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 11:59:29,244 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 11:59:29,244 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [13] total 29 [2018-11-23 11:59:29,245 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 11:59:29,245 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-23 11:59:29,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-23 11:59:29,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2018-11-23 11:59:29,245 INFO L87 Difference]: Start difference. First operand 791 states and 921 transitions. Second operand 18 states. [2018-11-23 11:59:32,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:59:32,783 INFO L93 Difference]: Finished difference Result 1752 states and 2073 transitions. [2018-11-23 11:59:32,784 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-11-23 11:59:32,784 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 103 [2018-11-23 11:59:32,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 11:59:32,789 INFO L225 Difference]: With dead ends: 1752 [2018-11-23 11:59:32,789 INFO L226 Difference]: Without dead ends: 985 [2018-11-23 11:59:32,791 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 112 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=636, Unknown=0, NotChecked=0, Total=756 [2018-11-23 11:59:32,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 985 states. [2018-11-23 11:59:32,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 985 to 981. [2018-11-23 11:59:32,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 981 states. [2018-11-23 11:59:32,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1115 transitions. [2018-11-23 11:59:32,840 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1115 transitions. Word has length 103 [2018-11-23 11:59:32,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 11:59:32,840 INFO L480 AbstractCegarLoop]: Abstraction has 981 states and 1115 transitions. [2018-11-23 11:59:32,840 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-23 11:59:32,840 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1115 transitions. [2018-11-23 11:59:32,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-11-23 11:59:32,844 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 11:59:32,845 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 11:59:32,845 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 11:59:32,845 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 11:59:32,845 INFO L82 PathProgramCache]: Analyzing trace with hash -503372183, now seen corresponding path program 1 times [2018-11-23 11:59:32,845 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 11:59:32,846 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 11:59:32,846 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 11:59:32,846 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 11:59:32,846 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 11:59:32,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 11:59:32,987 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-11-23 11:59:32,987 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 11:59:32,987 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 11:59:32,987 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 156 with the following transitions: [2018-11-23 11:59:32,987 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [21], [23], [26], [33], [36], [37], [38], [39], [42], [44], [45], [48], [52], [53], [54], [57], [59], [65], [69], [72], [73], [74], [83], [87], [91], [94], [97], [99], [102], [105], [107], [113], [116], [126], [127], [128], [129], [130], [132], [137], [140], [141], [143], [148], [150], [151], [156], [158], [159], [160], [189], [192], [196], [202], [205], [209], [210], [218], [222], [223], [226], [228], [231], [233], [236], [242], [244], [245], [246], [247], [248], [249], [250], [251], [252], [253], [255], [256], [257], [258], [261], [262], [263], [265], [266], [267], [268], [271], [272], [273], [274], [275], [276], [277], [278], [281], [282], [285], [286], [287], [288], [289], [290], [295], [296], [297], [298], [299], [300], [301], [302], [303], [305], [306], [307], [308], [309] [2018-11-23 11:59:32,991 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 11:59:32,991 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 11:59:34,546 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 11:59:34,546 INFO L272 AbstractInterpreter]: Visited 124 different actions 924 times. Merged at 18 different actions 70 times. Never widened. Performed 30618 root evaluator evaluations with a maximum evaluation depth of 3. Performed 30618 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 17 fixpoints after 4 different actions. Largest state had 133 variables. [2018-11-23 11:59:34,550 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 11:59:34,551 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 11:59:34,551 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 11:59:34,551 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7910ea27-6ade-41fd-9f7b-5eba932545f8/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 11:59:34,559 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 11:59:34,559 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 11:59:34,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 11:59:34,662 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 11:59:34,796 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-23 11:59:34,796 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 11:59:35,146 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-11-23 11:59:35,163 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-23 11:59:35,163 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 9] total 25 [2018-11-23 11:59:35,163 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 11:59:35,163 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-23 11:59:35,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-23 11:59:35,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-11-23 11:59:35,164 INFO L87 Difference]: Start difference. First operand 981 states and 1115 transitions. Second operand 8 states. [2018-11-23 11:59:35,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:59:35,314 INFO L93 Difference]: Finished difference Result 1513 states and 1740 transitions. [2018-11-23 11:59:35,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 11:59:35,315 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 155 [2018-11-23 11:59:35,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 11:59:35,316 INFO L225 Difference]: With dead ends: 1513 [2018-11-23 11:59:35,316 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 11:59:35,318 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 295 SyntacticMatches, 5 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-11-23 11:59:35,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 11:59:35,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 11:59:35,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 11:59:35,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 11:59:35,319 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 155 [2018-11-23 11:59:35,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 11:59:35,319 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 11:59:35,319 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-23 11:59:35,319 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 11:59:35,319 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 11:59:35,323 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 11:59:35,426 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 11:59:35,509 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 11:59:35,599 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 11:59:35,670 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 11:59:36,244 WARN L180 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 35 [2018-11-23 11:59:36,617 WARN L180 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 35 [2018-11-23 11:59:37,385 WARN L180 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 35 [2018-11-23 11:59:37,803 INFO L451 ceAbstractionStarter]: At program point select_helpersFINAL(lines 441 447) the Hoare annotation is: true [2018-11-23 11:59:37,803 INFO L448 ceAbstractionStarter]: For program point select_helpersEXIT(lines 441 447) no Hoare annotation was computed. [2018-11-23 11:59:37,803 INFO L448 ceAbstractionStarter]: For program point valid_productEXIT(lines 448 456) no Hoare annotation was computed. [2018-11-23 11:59:37,803 INFO L451 ceAbstractionStarter]: At program point valid_productENTRY(lines 448 456) the Hoare annotation is: true [2018-11-23 11:59:37,803 INFO L448 ceAbstractionStarter]: For program point valid_productFINAL(lines 448 456) no Hoare annotation was computed. [2018-11-23 11:59:37,804 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 399 421) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 11:59:37,804 INFO L444 ceAbstractionStarter]: At program point L411(line 411) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= ~systemActive~0 1) (= main_~tmp~5 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 11:59:37,804 INFO L444 ceAbstractionStarter]: At program point L411-1(line 411) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= ~systemActive~0 1) (= main_~tmp~5 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 11:59:37,804 INFO L448 ceAbstractionStarter]: For program point L409(lines 409 416) no Hoare annotation was computed. [2018-11-23 11:59:37,804 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 399 421) no Hoare annotation was computed. [2018-11-23 11:59:37,804 INFO L448 ceAbstractionStarter]: For program point L409-1(lines 409 416) no Hoare annotation was computed. [2018-11-23 11:59:37,804 INFO L448 ceAbstractionStarter]: For program point L407(line 407) no Hoare annotation was computed. [2018-11-23 11:59:37,804 INFO L444 ceAbstractionStarter]: At program point L406(line 406) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 11:59:37,804 INFO L444 ceAbstractionStarter]: At program point L405(line 405) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 11:59:37,804 INFO L444 ceAbstractionStarter]: At program point L405-1(line 405) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 11:59:37,805 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 399 421) no Hoare annotation was computed. [2018-11-23 11:59:37,805 INFO L448 ceAbstractionStarter]: For program point L162-1(line 162) no Hoare annotation was computed. [2018-11-23 11:59:37,805 INFO L448 ceAbstractionStarter]: For program point L160(lines 160 177) no Hoare annotation was computed. [2018-11-23 11:59:37,805 INFO L444 ceAbstractionStarter]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 156 180) the Hoare annotation is: (let ((.cse1 (not (= ~systemActive~0 1))) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (not (= ~methaneLevelCritical~0 1)) (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or .cse1 .cse0 (not (= ~methaneLevelCritical~0 0))))) [2018-11-23 11:59:37,805 INFO L444 ceAbstractionStarter]: At program point L175(line 175) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or (not (= ~methaneLevelCritical~0 1)) .cse0 .cse1) (or .cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse2))) [2018-11-23 11:59:37,805 INFO L448 ceAbstractionStarter]: For program point L175-1(lines 156 180) no Hoare annotation was computed. [2018-11-23 11:59:37,805 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 156 180) no Hoare annotation was computed. [2018-11-23 11:59:37,805 INFO L444 ceAbstractionStarter]: At program point L170(line 170) the Hoare annotation is: (let ((.cse2 (= 0 |old(~pumpRunning~0)|)) (.cse3 (and (= 0 processEnvironment__wrappee__methaneQuery_~tmp~1) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse0 (not (= ~systemActive~0 1))) (.cse1 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or (not (= ~methaneLevelCritical~0 1)) .cse3 (not .cse2) .cse0) (or .cse3 .cse0 .cse1))) [2018-11-23 11:59:37,805 INFO L444 ceAbstractionStarter]: At program point L166(line 166) the Hoare annotation is: (let ((.cse2 (not (= ~systemActive~0 1))) (.cse0 (not (= ~waterLevel~0 1))) (.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (not (= ~methaneLevelCritical~0 1)) (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 .cse1) .cse2) (or .cse2 (not (= ~methaneLevelCritical~0 0)) (and (= 0 ~pumpRunning~0) .cse0 .cse1)))) [2018-11-23 11:59:37,805 INFO L448 ceAbstractionStarter]: For program point L164(lines 164 172) no Hoare annotation was computed. [2018-11-23 11:59:37,806 INFO L444 ceAbstractionStarter]: At program point L162(line 162) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= 0 |old(~pumpRunning~0)|)) (.cse3 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse0 .cse1) (or (not (= ~methaneLevelCritical~0 1)) (not .cse2) .cse3 .cse0))) [2018-11-23 11:59:37,806 INFO L448 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 251 259) no Hoare annotation was computed. [2018-11-23 11:59:37,806 INFO L451 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 251 259) the Hoare annotation is: true [2018-11-23 11:59:37,806 INFO L448 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 251 259) no Hoare annotation was computed. [2018-11-23 11:59:37,806 INFO L448 ceAbstractionStarter]: For program point select_featuresEXIT(lines 434 440) no Hoare annotation was computed. [2018-11-23 11:59:37,806 INFO L451 ceAbstractionStarter]: At program point select_featuresFINAL(lines 434 440) the Hoare annotation is: true [2018-11-23 11:59:37,806 INFO L444 ceAbstractionStarter]: At program point runTestENTRY(lines 386 395) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 11:59:37,806 INFO L448 ceAbstractionStarter]: For program point runTestEXIT(lines 386 395) no Hoare annotation was computed. [2018-11-23 11:59:37,806 INFO L448 ceAbstractionStarter]: For program point runTestFINAL(lines 386 395) no Hoare annotation was computed. [2018-11-23 11:59:37,806 INFO L451 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 240 250) the Hoare annotation is: true [2018-11-23 11:59:37,806 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 240 250) no Hoare annotation was computed. [2018-11-23 11:59:37,806 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 240 250) no Hoare annotation was computed. [2018-11-23 11:59:37,806 INFO L451 ceAbstractionStarter]: At program point L245(line 245) the Hoare annotation is: true [2018-11-23 11:59:37,806 INFO L448 ceAbstractionStarter]: For program point L245-1(line 245) no Hoare annotation was computed. [2018-11-23 11:59:37,806 INFO L444 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 232 239) the Hoare annotation is: (let ((.cse1 (not (= ~systemActive~0 1))) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse2 (= 0 |old(~pumpRunning~0)|))) (and (or (not (= ~methaneLevelCritical~0 1)) .cse0 .cse1 .cse2) (or .cse1 .cse0 (not (= ~methaneLevelCritical~0 0)) .cse2))) [2018-11-23 11:59:37,807 INFO L448 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 232 239) no Hoare annotation was computed. [2018-11-23 11:59:37,807 INFO L448 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 232 239) no Hoare annotation was computed. [2018-11-23 11:59:37,807 INFO L448 ceAbstractionStarter]: For program point L577(lines 577 583) no Hoare annotation was computed. [2018-11-23 11:59:37,807 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 573 586) no Hoare annotation was computed. [2018-11-23 11:59:37,807 INFO L451 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 573 586) the Hoare annotation is: true [2018-11-23 11:59:37,807 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 573 586) no Hoare annotation was computed. [2018-11-23 11:59:37,807 INFO L444 ceAbstractionStarter]: At program point L192(line 192) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse3 (not (= ~methaneLevelCritical~0 1))) (.cse4 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse0 .cse1) (or .cse1 .cse4 .cse2) (or .cse3 (and (<= ~methaneLevelCritical~0 processEnvironment_~tmp~2) .cse4) .cse1))) [2018-11-23 11:59:37,807 INFO L448 ceAbstractionStarter]: For program point L190(lines 190 198) no Hoare annotation was computed. [2018-11-23 11:59:37,807 INFO L444 ceAbstractionStarter]: At program point L188(line 188) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse3 (not (= ~methaneLevelCritical~0 1))) (.cse4 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse0 .cse1) (or .cse1 .cse4 .cse2) (or .cse3 .cse4 .cse1))) [2018-11-23 11:59:37,807 INFO L448 ceAbstractionStarter]: For program point L188-1(line 188) no Hoare annotation was computed. [2018-11-23 11:59:37,807 INFO L448 ceAbstractionStarter]: For program point L186(lines 186 203) no Hoare annotation was computed. [2018-11-23 11:59:37,807 INFO L448 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 182 206) no Hoare annotation was computed. [2018-11-23 11:59:37,807 INFO L444 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 182 206) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or (not (= ~methaneLevelCritical~0 1)) .cse1 .cse0))) [2018-11-23 11:59:37,807 INFO L444 ceAbstractionStarter]: At program point L201(line 201) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse3 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse4 (not (= ~methaneLevelCritical~0 1))) (.cse0 (not (= ~systemActive~0 1))) (.cse2 (= 0 |old(~pumpRunning~0)|))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse0 .cse1) (or .cse4 .cse0 .cse3) (or .cse4 .cse0 .cse2))) [2018-11-23 11:59:37,808 INFO L448 ceAbstractionStarter]: For program point L201-1(lines 182 206) no Hoare annotation was computed. [2018-11-23 11:59:37,808 INFO L444 ceAbstractionStarter]: At program point L196(line 196) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or .cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse1) (or (not (= ~methaneLevelCritical~0 1)) .cse0))) [2018-11-23 11:59:37,808 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 148 154) no Hoare annotation was computed. [2018-11-23 11:59:37,808 INFO L451 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 148 154) the Hoare annotation is: true [2018-11-23 11:59:37,808 INFO L444 ceAbstractionStarter]: At program point testENTRY(lines 45 110) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 11:59:37,808 INFO L448 ceAbstractionStarter]: For program point L93(lines 93 97) no Hoare annotation was computed. [2018-11-23 11:59:37,808 INFO L444 ceAbstractionStarter]: At program point L93-2(lines 85 98) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 1) .cse0 .cse1) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) .cse0 .cse1))) [2018-11-23 11:59:37,808 INFO L448 ceAbstractionStarter]: For program point L56(lines 55 102) no Hoare annotation was computed. [2018-11-23 11:59:37,808 INFO L444 ceAbstractionStarter]: At program point L87(line 87) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~methaneLevelCritical~0 1) .cse0 .cse1) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) .cse0 .cse1))) [2018-11-23 11:59:37,808 INFO L448 ceAbstractionStarter]: For program point testFINAL(lines 45 110) no Hoare annotation was computed. [2018-11-23 11:59:37,808 INFO L448 ceAbstractionStarter]: For program point L85(lines 85 98) no Hoare annotation was computed. [2018-11-23 11:59:37,808 INFO L444 ceAbstractionStarter]: At program point L77(line 77) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~pumpRunning~0) (= ~methaneLevelCritical~0 1) .cse0 .cse1) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) .cse0 .cse1))) [2018-11-23 11:59:37,808 INFO L448 ceAbstractionStarter]: For program point L75(lines 75 81) no Hoare annotation was computed. [2018-11-23 11:59:37,808 INFO L448 ceAbstractionStarter]: For program point L75-1(lines 75 81) no Hoare annotation was computed. [2018-11-23 11:59:37,809 INFO L444 ceAbstractionStarter]: At program point L100(lines 55 102) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~pumpRunning~0) (= ~methaneLevelCritical~0 1) .cse0 .cse1) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) .cse0 .cse1))) [2018-11-23 11:59:37,809 INFO L444 ceAbstractionStarter]: At program point L67(line 67) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and (and (= 0 ~pumpRunning~0) .cse0 .cse1) (= ~methaneLevelCritical~0 1)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) .cse0 .cse1))) [2018-11-23 11:59:37,809 INFO L448 ceAbstractionStarter]: For program point L65(lines 65 71) no Hoare annotation was computed. [2018-11-23 11:59:37,809 INFO L448 ceAbstractionStarter]: For program point L65-1(lines 65 71) no Hoare annotation was computed. [2018-11-23 11:59:37,809 INFO L448 ceAbstractionStarter]: For program point L57(lines 57 61) no Hoare annotation was computed. [2018-11-23 11:59:37,809 INFO L444 ceAbstractionStarter]: At program point L103(lines 54 104) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 11:59:37,809 INFO L448 ceAbstractionStarter]: For program point testEXIT(lines 45 110) no Hoare annotation was computed. [2018-11-23 11:59:37,809 INFO L444 ceAbstractionStarter]: At program point activatePump__wrappee__highWaterSensorENTRY(lines 207 214) the Hoare annotation is: (or (or (= ~waterLevel~0 1) (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= ~methaneLevelCritical~0 0))) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-11-23 11:59:37,809 INFO L448 ceAbstractionStarter]: For program point activatePump__wrappee__highWaterSensorEXIT(lines 207 214) no Hoare annotation was computed. [2018-11-23 11:59:37,809 INFO L448 ceAbstractionStarter]: For program point activatePump__wrappee__highWaterSensorFINAL(lines 207 214) no Hoare annotation was computed. [2018-11-23 11:59:37,809 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-23 11:59:37,809 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= |old(~pumpRunning~0)| ~pumpRunning~0) [2018-11-23 11:59:37,809 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 11:59:37,809 INFO L448 ceAbstractionStarter]: For program point L226-1(lines 215 231) no Hoare annotation was computed. [2018-11-23 11:59:37,809 INFO L448 ceAbstractionStarter]: For program point L222(lines 222 228) no Hoare annotation was computed. [2018-11-23 11:59:37,809 INFO L444 ceAbstractionStarter]: At program point L220(line 220) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 1)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (not (= ~systemActive~0 1))) (.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (not (= ~methaneLevelCritical~0 1)) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse3 (not (= ~methaneLevelCritical~0 0)) .cse2))) [2018-11-23 11:59:37,809 INFO L448 ceAbstractionStarter]: For program point activatePumpEXIT(lines 215 231) no Hoare annotation was computed. [2018-11-23 11:59:37,809 INFO L448 ceAbstractionStarter]: For program point L220-1(line 220) no Hoare annotation was computed. [2018-11-23 11:59:37,809 INFO L444 ceAbstractionStarter]: At program point activatePumpENTRY(lines 215 231) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 1)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (not (= ~systemActive~0 1))) (.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (not (= ~methaneLevelCritical~0 1)) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse3 (not (= ~methaneLevelCritical~0 0)) .cse2))) [2018-11-23 11:59:37,809 INFO L444 ceAbstractionStarter]: At program point L226(line 226) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 1)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1)))) (and (or (not (= ~methaneLevelCritical~0 1)) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0)) (= |old(~pumpRunning~0)| ~pumpRunning~0)))) [2018-11-23 11:59:37,810 INFO L448 ceAbstractionStarter]: For program point L305(lines 305 309) no Hoare annotation was computed. [2018-11-23 11:59:37,810 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 296 314) no Hoare annotation was computed. [2018-11-23 11:59:37,810 INFO L451 ceAbstractionStarter]: At program point L303(line 303) the Hoare annotation is: true [2018-11-23 11:59:37,810 INFO L448 ceAbstractionStarter]: For program point L305-2(lines 305 309) no Hoare annotation was computed. [2018-11-23 11:59:37,810 INFO L448 ceAbstractionStarter]: For program point L303-1(line 303) no Hoare annotation was computed. [2018-11-23 11:59:37,810 INFO L451 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 296 314) the Hoare annotation is: true [2018-11-23 11:59:37,810 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 296 314) no Hoare annotation was computed. [2018-11-23 11:59:37,810 INFO L444 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 520 531) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= |old(~methaneLevelCritical~0)| 1)) (not (= 0 ~pumpRunning~0)) (= ~methaneLevelCritical~0 1) .cse0) (or (= 0 ~methaneLevelCritical~0) .cse0 (not (= |old(~methaneLevelCritical~0)| 0))))) [2018-11-23 11:59:37,810 INFO L448 ceAbstractionStarter]: For program point L524-1(lines 520 531) no Hoare annotation was computed. [2018-11-23 11:59:37,810 INFO L448 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 520 531) no Hoare annotation was computed. [2018-11-23 11:59:37,810 INFO L451 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 532 540) the Hoare annotation is: true [2018-11-23 11:59:37,810 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 532 540) no Hoare annotation was computed. [2018-11-23 11:59:37,810 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 532 540) no Hoare annotation was computed. [2018-11-23 11:59:37,810 INFO L448 ceAbstractionStarter]: For program point cleanupEXIT(lines 325 354) no Hoare annotation was computed. [2018-11-23 11:59:37,810 INFO L451 ceAbstractionStarter]: At program point L350(lines 325 354) the Hoare annotation is: true [2018-11-23 11:59:37,810 INFO L451 ceAbstractionStarter]: At program point cleanupENTRY(lines 325 354) the Hoare annotation is: true [2018-11-23 11:59:37,810 INFO L448 ceAbstractionStarter]: For program point L346(line 346) no Hoare annotation was computed. [2018-11-23 11:59:37,810 INFO L448 ceAbstractionStarter]: For program point L339(lines 339 343) no Hoare annotation was computed. [2018-11-23 11:59:37,810 INFO L451 ceAbstractionStarter]: At program point L339-1(lines 339 343) the Hoare annotation is: true [2018-11-23 11:59:37,810 INFO L448 ceAbstractionStarter]: For program point L336(line 336) no Hoare annotation was computed. [2018-11-23 11:59:37,810 INFO L451 ceAbstractionStarter]: At program point L335-2(lines 335 349) the Hoare annotation is: true [2018-11-23 11:59:37,810 INFO L451 ceAbstractionStarter]: At program point L331(line 331) the Hoare annotation is: true [2018-11-23 11:59:37,810 INFO L448 ceAbstractionStarter]: For program point L331-1(line 331) no Hoare annotation was computed. [2018-11-23 11:59:37,811 INFO L448 ceAbstractionStarter]: For program point L128(lines 127 146) no Hoare annotation was computed. [2018-11-23 11:59:37,811 INFO L444 ceAbstractionStarter]: At program point timeShiftENTRY(lines 124 147) the Hoare annotation is: (let ((.cse5 (= |old(~waterLevel~0)| 1))) (let ((.cse0 (not (= ~methaneLevelCritical~0 1))) (.cse7 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse9 (= 1 ~waterLevel~0)) (.cse10 (not .cse5)) (.cse6 (not (= ~waterLevel~0 1))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (= ~waterLevel~0 2)) (.cse2 (not (= ~systemActive~0 1))) (.cse8 (not (= ~methaneLevelCritical~0 0))) (.cse4 (not (= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse5 .cse2 .cse6) (or .cse7 .cse2 .cse8) (or .cse0 .cse1 .cse9 .cse2 .cse10) (or .cse0 .cse2 .cse7) (or .cse1 .cse9 .cse2 .cse10 .cse8) (or .cse5 .cse2 .cse6 .cse8) (or .cse1 .cse3 .cse2 .cse8 .cse4)))) [2018-11-23 11:59:37,811 INFO L448 ceAbstractionStarter]: For program point timeShiftEXIT(lines 124 147) no Hoare annotation was computed. [2018-11-23 11:59:37,811 INFO L444 ceAbstractionStarter]: At program point L137(line 137) the Hoare annotation is: (let ((.cse9 (= |old(~waterLevel~0)| 1))) (let ((.cse10 (not (= ~waterLevel~0 1))) (.cse5 (= 1 ~waterLevel~0)) (.cse6 (not .cse9)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (= ~waterLevel~0 2)) (.cse8 (not (= ~methaneLevelCritical~0 0))) (.cse4 (not (= |old(~waterLevel~0)| 2))) (.cse0 (not (= ~methaneLevelCritical~0 1))) (.cse7 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 .cse5 .cse2 .cse6) (or .cse7 .cse2 .cse8) (or .cse0 .cse9 .cse1 .cse10 .cse2) (or .cse9 .cse1 .cse2 .cse8 .cse10) (or .cse1 .cse5 .cse2 .cse6 .cse8) (or .cse1 .cse3 .cse2 .cse8 .cse4) (or .cse0 .cse7 .cse2)))) [2018-11-23 11:59:37,811 INFO L444 ceAbstractionStarter]: At program point L135(lines 135 141) the Hoare annotation is: (let ((.cse8 (= |old(~waterLevel~0)| 1))) (let ((.cse5 (= 0 ~pumpRunning~0)) (.cse3 (= 1 ~waterLevel~0)) (.cse4 (not .cse8)) (.cse7 (not (= ~methaneLevelCritical~0 0))) (.cse0 (not (= ~methaneLevelCritical~0 1))) (.cse6 (not (= ~waterLevel~0 1))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 (= ~waterLevel~0 2) (not (= |old(~waterLevel~0)| 2))) (or .cse0 .cse1 .cse3 .cse2 .cse4) (or .cse0 .cse2 .cse5) (or .cse6 (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse5 .cse2 .cse7) (or .cse8 .cse6 .cse2 .cse1 .cse7) (or .cse1 .cse3 .cse2 .cse4 .cse7) (or .cse0 .cse8 .cse6 .cse1 .cse2)))) [2018-11-23 11:59:37,811 INFO L448 ceAbstractionStarter]: For program point timeShiftFINAL(lines 124 147) no Hoare annotation was computed. [2018-11-23 11:59:37,811 INFO L444 ceAbstractionStarter]: At program point L130(line 130) the Hoare annotation is: (let ((.cse1 (and (not (= 0 |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse0 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or (not (= ~methaneLevelCritical~0 1)) .cse1 .cse0))) [2018-11-23 11:59:37,811 INFO L451 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 496 507) the Hoare annotation is: true [2018-11-23 11:59:37,811 INFO L448 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 496 507) no Hoare annotation was computed. [2018-11-23 11:59:37,812 INFO L448 ceAbstractionStarter]: For program point L500-1(lines 496 507) no Hoare annotation was computed. [2018-11-23 11:59:37,812 INFO L448 ceAbstractionStarter]: For program point setupEXIT(lines 379 385) no Hoare annotation was computed. [2018-11-23 11:59:37,812 INFO L451 ceAbstractionStarter]: At program point setupFINAL(lines 379 385) the Hoare annotation is: true [2018-11-23 11:59:37,812 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 11:59:37,812 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0) (= ~systemActive~0 1)) [2018-11-23 11:59:37,812 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 11:59:37,812 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 11:59:37,812 INFO L448 ceAbstractionStarter]: For program point startSystemEXIT(lines 315 322) no Hoare annotation was computed. [2018-11-23 11:59:37,812 INFO L444 ceAbstractionStarter]: At program point startSystemENTRY(lines 315 322) the Hoare annotation is: (let ((.cse1 (= ~systemActive~0 1)) (.cse0 (not (= |old(~systemActive~0)| 1)))) (and (or (not (= ~methaneLevelCritical~0 1)) .cse0 .cse1) (or .cse1 .cse0 (not (= ~methaneLevelCritical~0 0))))) [2018-11-23 11:59:37,812 INFO L448 ceAbstractionStarter]: For program point startSystemFINAL(lines 315 322) no Hoare annotation was computed. [2018-11-23 11:59:37,812 INFO L448 ceAbstractionStarter]: For program point L512-1(lines 508 519) no Hoare annotation was computed. [2018-11-23 11:59:37,812 INFO L448 ceAbstractionStarter]: For program point waterRiseEXIT(lines 508 519) no Hoare annotation was computed. [2018-11-23 11:59:37,813 INFO L444 ceAbstractionStarter]: At program point waterRiseENTRY(lines 508 519) the Hoare annotation is: (let ((.cse7 (not (= ~methaneLevelCritical~0 0))) (.cse1 (= ~waterLevel~0 2)) (.cse4 (not (= |old(~waterLevel~0)| 2))) (.cse0 (not (= ~methaneLevelCritical~0 1))) (.cse2 (not (= 0 ~pumpRunning~0))) (.cse5 (= 1 ~waterLevel~0)) (.cse3 (not (= ~systemActive~0 1))) (.cse6 (not (= |old(~waterLevel~0)| 1)))) (and (or .cse0 .cse1 (or .cse2 .cse3) .cse4) (or .cse2 .cse5 .cse3 .cse6 .cse7) (or (or .cse2 .cse3 .cse7) .cse1 .cse4) (or .cse0 .cse2 .cse5 .cse3 .cse6))) [2018-11-23 11:59:37,813 INFO L448 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 458 465) no Hoare annotation was computed. [2018-11-23 11:59:37,813 INFO L451 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 458 465) the Hoare annotation is: true [2018-11-23 11:59:37,813 INFO L448 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 462) no Hoare annotation was computed. [2018-11-23 11:59:37,813 INFO L448 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 458 465) no Hoare annotation was computed. [2018-11-23 11:59:37,813 INFO L444 ceAbstractionStarter]: At program point L481(line 481) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= ~methaneLevelCritical~0 1)) (not (= 0 ~pumpRunning~0)) .cse0) (or .cse0 (not (= ~methaneLevelCritical~0 0))))) [2018-11-23 11:59:37,813 INFO L448 ceAbstractionStarter]: For program point L479(lines 479 485) no Hoare annotation was computed. [2018-11-23 11:59:37,813 INFO L444 ceAbstractionStarter]: At program point L477(line 477) the Hoare annotation is: (or (not (= ~systemActive~0 1)) (not (= ~methaneLevelCritical~0 0))) [2018-11-23 11:59:37,813 INFO L451 ceAbstractionStarter]: At program point __utac_acc__Specification1_spec__1ENTRY(lines 467 491) the Hoare annotation is: true [2018-11-23 11:59:37,813 INFO L448 ceAbstractionStarter]: For program point L477-1(line 477) no Hoare annotation was computed. [2018-11-23 11:59:37,813 INFO L448 ceAbstractionStarter]: For program point L475(lines 475 488) no Hoare annotation was computed. [2018-11-23 11:59:37,813 INFO L448 ceAbstractionStarter]: For program point L475-1(lines 467 491) no Hoare annotation was computed. [2018-11-23 11:59:37,813 INFO L451 ceAbstractionStarter]: At program point L473(line 473) the Hoare annotation is: true [2018-11-23 11:59:37,813 INFO L448 ceAbstractionStarter]: For program point L473-1(line 473) no Hoare annotation was computed. [2018-11-23 11:59:37,813 INFO L448 ceAbstractionStarter]: For program point __utac_acc__Specification1_spec__1EXIT(lines 467 491) no Hoare annotation was computed. [2018-11-23 11:59:37,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 11:59:37 BoogieIcfgContainer [2018-11-23 11:59:37,826 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 11:59:37,826 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 11:59:37,826 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 11:59:37,826 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 11:59:37,827 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:59:25" (3/4) ... [2018-11-23 11:59:37,830 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 11:59:37,834 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-11-23 11:59:37,834 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-11-23 11:59:37,834 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 11:59:37,834 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2018-11-23 11:59:37,834 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-11-23 11:59:37,834 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-11-23 11:59:37,834 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-11-23 11:59:37,834 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2018-11-23 11:59:37,834 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-11-23 11:59:37,834 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-11-23 11:59:37,835 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-11-23 11:59:37,835 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-11-23 11:59:37,835 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-11-23 11:59:37,835 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump__wrappee__highWaterSensor [2018-11-23 11:59:37,835 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 11:59:37,835 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-11-23 11:59:37,835 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-11-23 11:59:37,835 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-11-23 11:59:37,835 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2018-11-23 11:59:37,835 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-11-23 11:59:37,835 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-11-23 11:59:37,835 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-11-23 11:59:37,835 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-11-23 11:59:37,836 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure startSystem [2018-11-23 11:59:37,836 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-11-23 11:59:37,836 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-11-23 11:59:37,836 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification1_spec__1 [2018-11-23 11:59:37,842 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 47 nodes and edges [2018-11-23 11:59:37,843 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2018-11-23 11:59:37,843 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-23 11:59:37,844 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-23 11:59:37,844 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-23 11:59:37,844 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 11:59:37,845 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 11:59:37,869 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(0 == \old(pumpRunning)) || (((0 == pumpRunning && methaneLevelCritical == 1) && systemActive == 1) && splverifierCounter == 0)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0)) || ((0 == methaneLevelCritical && systemActive == 1) && splverifierCounter == 0) [2018-11-23 11:59:37,869 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-11-23 11:59:37,905 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_7910ea27-6ade-41fd-9f7b-5eba932545f8/bin-2019/utaipan/witness.graphml [2018-11-23 11:59:37,905 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 11:59:37,906 INFO L168 Benchmark]: Toolchain (without parser) took 13044.09 ms. Allocated memory was 1.0 GB in the beginning and 1.6 GB in the end (delta: 583.5 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -128.5 MB). Peak memory consumption was 455.0 MB. Max. memory is 11.5 GB. [2018-11-23 11:59:37,907 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 11:59:37,907 INFO L168 Benchmark]: CACSL2BoogieTranslator took 361.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.3 MB). Free memory was 956.6 MB in the beginning and 1.2 GB in the end (delta: -199.0 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. [2018-11-23 11:59:37,908 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.80 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 11:59:37,908 INFO L168 Benchmark]: Boogie Preprocessor took 24.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-23 11:59:37,908 INFO L168 Benchmark]: RCFGBuilder took 456.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 55.4 MB). Peak memory consumption was 55.4 MB. Max. memory is 11.5 GB. [2018-11-23 11:59:37,908 INFO L168 Benchmark]: TraceAbstraction took 12094.03 ms. Allocated memory was 1.2 GB in the beginning and 1.6 GB in the end (delta: 415.2 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -2.7 MB). Peak memory consumption was 705.2 MB. Max. memory is 11.5 GB. [2018-11-23 11:59:37,908 INFO L168 Benchmark]: Witness Printer took 79.08 ms. Allocated memory is still 1.6 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-23 11:59:37,910 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 361.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.3 MB). Free memory was 956.6 MB in the beginning and 1.2 GB in the end (delta: -199.0 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.80 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 456.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 55.4 MB). Peak memory consumption was 55.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 12094.03 ms. Allocated memory was 1.2 GB in the beginning and 1.6 GB in the end (delta: 415.2 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -2.7 MB). Peak memory consumption was 705.2 MB. Max. memory is 11.5 GB. * Witness Printer took 79.08 ms. Allocated memory is still 1.6 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 462]: 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: 54]: Loop Invariant Derived loop invariant: ((!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 335]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 325]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: ((((!(0 == \old(pumpRunning)) || (((0 == pumpRunning && methaneLevelCritical == 1) && systemActive == 1) && splverifierCounter == 0)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0)) || ((0 == methaneLevelCritical && systemActive == 1) && splverifierCounter == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 28 procedures, 147 locations, 1 error locations. SAFE Result, 12.0s OverallTime, 11 OverallIterations, 4 TraceHistogramMax, 5.1s AutomataDifference, 0.0s DeadEndRemovalTime, 2.4s HoareAnnotationTime, HoareTripleCheckerStatistics: 2050 SDtfs, 1209 SDslu, 5923 SDs, 0 SdLazy, 2084 SolverSat, 295 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.2s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 527 GetRequests, 426 SyntacticMatches, 6 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=981occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.0s AbstIntTime, 2 AbstIntIterations, 1 AbstIntStrong, 0.996779096352169 AbsIntWeakeningRatio, 1.0686274509803921 AbsIntAvgWeakeningVarsNumRemoved, 83.32352941176471 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 86 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 62 LocationsWithAnnotation, 1649 PreInvPairs, 1773 NumberOfFragments, 1694 HoareAnnotationTreeSize, 1649 FomulaSimplifications, 3564 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 62 FomulaSimplificationsInter, 11488 FormulaSimplificationTreeSizeReductionInter, 2.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 1082 NumberOfCodeBlocks, 1082 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1224 ConstructedInterpolants, 0 QuantifiedInterpolants, 205634 SizeOfPredicates, 3 NumberOfNonLiveVariables, 878 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 13 InterpolantComputations, 10 PerfectInterpolantSequences, 153/159 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...