./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product40_false-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_6d24bda7-1acf-4330-a2b4-8bc80704a25e/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6d24bda7-1acf-4330-a2b4-8bc80704a25e/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6d24bda7-1acf-4330-a2b4-8bc80704a25e/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6d24bda7-1acf-4330-a2b4-8bc80704a25e/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product40_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_6d24bda7-1acf-4330-a2b4-8bc80704a25e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6d24bda7-1acf-4330-a2b4-8bc80704a25e/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 ad65d1d3307a121fce5b7d95113e2f3f66b04b5a ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 01:38:45,150 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 01:38:45,152 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 01:38:45,159 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 01:38:45,159 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 01:38:45,160 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 01:38:45,161 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 01:38:45,162 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 01:38:45,163 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 01:38:45,164 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 01:38:45,164 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 01:38:45,165 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 01:38:45,165 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 01:38:45,166 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 01:38:45,167 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 01:38:45,167 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 01:38:45,168 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 01:38:45,169 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 01:38:45,170 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 01:38:45,171 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 01:38:45,172 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 01:38:45,173 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 01:38:45,175 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 01:38:45,175 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 01:38:45,175 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 01:38:45,176 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 01:38:45,176 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 01:38:45,177 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 01:38:45,178 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 01:38:45,178 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 01:38:45,178 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 01:38:45,179 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 01:38:45,179 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 01:38:45,179 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 01:38:45,180 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 01:38:45,180 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 01:38:45,180 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6d24bda7-1acf-4330-a2b4-8bc80704a25e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-02 01:38:45,190 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 01:38:45,191 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 01:38:45,191 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 01:38:45,191 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 01:38:45,191 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 01:38:45,192 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 01:38:45,192 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 01:38:45,192 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-02 01:38:45,192 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 01:38:45,192 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 01:38:45,192 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-02 01:38:45,192 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-02 01:38:45,192 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 01:38:45,193 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 01:38:45,193 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 01:38:45,193 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 01:38:45,193 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 01:38:45,193 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 01:38:45,193 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 01:38:45,194 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 01:38:45,194 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 01:38:45,194 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 01:38:45,194 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 01:38:45,194 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 01:38:45,194 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 01:38:45,194 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 01:38:45,194 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 01:38:45,195 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 01:38:45,195 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 01:38:45,195 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 01:38:45,195 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 01:38:45,195 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 01:38:45,195 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-02 01:38:45,195 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 01:38:45,195 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 01:38:45,195 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-02 01:38:45,195 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_6d24bda7-1acf-4330-a2b4-8bc80704a25e/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 -> ad65d1d3307a121fce5b7d95113e2f3f66b04b5a [2018-12-02 01:38:45,218 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 01:38:45,226 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 01:38:45,228 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 01:38:45,229 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 01:38:45,229 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 01:38:45,230 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6d24bda7-1acf-4330-a2b4-8bc80704a25e/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product40_false-unreach-call_false-termination.cil.c [2018-12-02 01:38:45,264 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6d24bda7-1acf-4330-a2b4-8bc80704a25e/bin-2019/utaipan/data/e6620f5ae/dc87264af983474ca81438c1a9a9f67f/FLAG542e0ac67 [2018-12-02 01:38:45,714 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 01:38:45,714 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6d24bda7-1acf-4330-a2b4-8bc80704a25e/sv-benchmarks/c/product-lines/minepump_spec1_product40_false-unreach-call_false-termination.cil.c [2018-12-02 01:38:45,720 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6d24bda7-1acf-4330-a2b4-8bc80704a25e/bin-2019/utaipan/data/e6620f5ae/dc87264af983474ca81438c1a9a9f67f/FLAG542e0ac67 [2018-12-02 01:38:45,728 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6d24bda7-1acf-4330-a2b4-8bc80704a25e/bin-2019/utaipan/data/e6620f5ae/dc87264af983474ca81438c1a9a9f67f [2018-12-02 01:38:45,730 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 01:38:45,731 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 01:38:45,732 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 01:38:45,732 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 01:38:45,734 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 01:38:45,734 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:38:45" (1/1) ... [2018-12-02 01:38:45,736 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2648fef5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:45, skipping insertion in model container [2018-12-02 01:38:45,736 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:38:45" (1/1) ... [2018-12-02 01:38:45,740 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 01:38:45,761 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 01:38:45,910 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 01:38:45,918 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 01:38:45,996 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 01:38:46,013 INFO L195 MainTranslator]: Completed translation [2018-12-02 01:38:46,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:46 WrapperNode [2018-12-02 01:38:46,014 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 01:38:46,014 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 01:38:46,014 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 01:38:46,014 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 01:38:46,019 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:46" (1/1) ... [2018-12-02 01:38:46,029 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:46" (1/1) ... [2018-12-02 01:38:46,034 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 01:38:46,034 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 01:38:46,035 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 01:38:46,035 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 01:38:46,041 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:46" (1/1) ... [2018-12-02 01:38:46,041 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:46" (1/1) ... [2018-12-02 01:38:46,043 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:46" (1/1) ... [2018-12-02 01:38:46,043 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:46" (1/1) ... [2018-12-02 01:38:46,050 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:46" (1/1) ... [2018-12-02 01:38:46,054 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:46" (1/1) ... [2018-12-02 01:38:46,055 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:46" (1/1) ... [2018-12-02 01:38:46,057 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 01:38:46,057 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 01:38:46,058 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 01:38:46,058 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 01:38:46,058 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d24bda7-1acf-4330-a2b4-8bc80704a25e/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 01:38:46,090 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-02 01:38:46,091 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-02 01:38:46,091 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 01:38:46,091 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 01:38:46,091 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2018-12-02 01:38:46,091 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2018-12-02 01:38:46,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 01:38:46,091 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-02 01:38:46,091 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-02 01:38:46,091 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-02 01:38:46,091 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-02 01:38:46,091 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-02 01:38:46,091 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-02 01:38:46,091 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-02 01:38:46,092 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-02 01:38:46,092 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-02 01:38:46,092 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-02 01:38:46,092 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-02 01:38:46,092 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-02 01:38:46,092 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-02 01:38:46,092 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-02 01:38:46,092 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-02 01:38:46,092 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-02 01:38:46,092 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-02 01:38:46,093 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-02 01:38:46,093 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-02 01:38:46,093 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-02 01:38:46,093 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-02 01:38:46,093 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-02 01:38:46,093 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2018-12-02 01:38:46,093 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2018-12-02 01:38:46,093 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-12-02 01:38:46,094 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-12-02 01:38:46,094 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-02 01:38:46,094 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-02 01:38:46,094 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-02 01:38:46,094 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-02 01:38:46,094 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-02 01:38:46,094 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-02 01:38:46,094 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-02 01:38:46,094 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-02 01:38:46,095 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-02 01:38:46,095 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-02 01:38:46,095 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-12-02 01:38:46,095 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-12-02 01:38:46,095 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-02 01:38:46,095 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-02 01:38:46,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-02 01:38:46,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 01:38:46,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 01:38:46,096 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-02 01:38:46,096 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-02 01:38:46,096 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-02 01:38:46,096 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-02 01:38:46,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 01:38:46,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 01:38:46,096 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2018-12-02 01:38:46,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2018-12-02 01:38:46,430 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 01:38:46,430 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-02 01:38:46,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:38:46 BoogieIcfgContainer [2018-12-02 01:38:46,430 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 01:38:46,431 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 01:38:46,431 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 01:38:46,433 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 01:38:46,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:38:45" (1/3) ... [2018-12-02 01:38:46,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c9ae3f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:38:46, skipping insertion in model container [2018-12-02 01:38:46,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:46" (2/3) ... [2018-12-02 01:38:46,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c9ae3f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:38:46, skipping insertion in model container [2018-12-02 01:38:46,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:38:46" (3/3) ... [2018-12-02 01:38:46,435 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product40_false-unreach-call_false-termination.cil.c [2018-12-02 01:38:46,440 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 01:38:46,445 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 01:38:46,454 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 01:38:46,473 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 01:38:46,473 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 01:38:46,473 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 01:38:46,473 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 01:38:46,473 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 01:38:46,473 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 01:38:46,473 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 01:38:46,473 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 01:38:46,485 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states. [2018-12-02 01:38:46,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-02 01:38:46,490 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 01:38:46,490 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 01:38:46,492 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 01:38:46,495 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:38:46,495 INFO L82 PathProgramCache]: Analyzing trace with hash -137960937, now seen corresponding path program 1 times [2018-12-02 01:38:46,496 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 01:38:46,523 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:38:46,523 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 01:38:46,523 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:38:46,523 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 01:38:46,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 01:38:46,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 01:38:46,635 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 01:38:46,635 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 01:38:46,635 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 01:38:46,638 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-02 01:38:46,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 01:38:46,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 01:38:46,647 INFO L87 Difference]: Start difference. First operand 146 states. Second operand 2 states. [2018-12-02 01:38:46,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 01:38:46,669 INFO L93 Difference]: Finished difference Result 266 states and 331 transitions. [2018-12-02 01:38:46,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 01:38:46,670 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-02 01:38:46,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 01:38:46,677 INFO L225 Difference]: With dead ends: 266 [2018-12-02 01:38:46,677 INFO L226 Difference]: Without dead ends: 133 [2018-12-02 01:38:46,679 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 01:38:46,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2018-12-02 01:38:46,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2018-12-02 01:38:46,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2018-12-02 01:38:46,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 157 transitions. [2018-12-02 01:38:46,709 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 157 transitions. Word has length 46 [2018-12-02 01:38:46,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 01:38:46,709 INFO L480 AbstractCegarLoop]: Abstraction has 133 states and 157 transitions. [2018-12-02 01:38:46,709 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-02 01:38:46,709 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 157 transitions. [2018-12-02 01:38:46,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-02 01:38:46,711 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 01:38:46,711 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 01:38:46,711 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 01:38:46,712 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:38:46,712 INFO L82 PathProgramCache]: Analyzing trace with hash 158003976, now seen corresponding path program 1 times [2018-12-02 01:38:46,712 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 01:38:46,712 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:38:46,713 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 01:38:46,713 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:38:46,713 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 01:38:46,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 01:38:46,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 01:38:46,783 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 01:38:46,783 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 01:38:46,783 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 01:38:46,784 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 01:38:46,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 01:38:46,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 01:38:46,785 INFO L87 Difference]: Start difference. First operand 133 states and 157 transitions. Second operand 3 states. [2018-12-02 01:38:46,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 01:38:46,802 INFO L93 Difference]: Finished difference Result 205 states and 241 transitions. [2018-12-02 01:38:46,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 01:38:46,802 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-02 01:38:46,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 01:38:46,804 INFO L225 Difference]: With dead ends: 205 [2018-12-02 01:38:46,804 INFO L226 Difference]: Without dead ends: 124 [2018-12-02 01:38:46,805 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 01:38:46,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2018-12-02 01:38:46,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2018-12-02 01:38:46,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2018-12-02 01:38:46,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 145 transitions. [2018-12-02 01:38:46,815 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 145 transitions. Word has length 47 [2018-12-02 01:38:46,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 01:38:46,815 INFO L480 AbstractCegarLoop]: Abstraction has 124 states and 145 transitions. [2018-12-02 01:38:46,815 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 01:38:46,815 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 145 transitions. [2018-12-02 01:38:46,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-12-02 01:38:46,816 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 01:38:46,817 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 01:38:46,817 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 01:38:46,817 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:38:46,817 INFO L82 PathProgramCache]: Analyzing trace with hash 42599552, now seen corresponding path program 1 times [2018-12-02 01:38:46,817 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 01:38:46,818 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:38:46,818 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 01:38:46,818 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:38:46,818 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 01:38:46,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 01:38:46,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 01:38:46,915 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 01:38:46,915 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 01:38:46,915 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 01:38:46,916 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 01:38:46,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 01:38:46,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-02 01:38:46,916 INFO L87 Difference]: Start difference. First operand 124 states and 145 transitions. Second operand 7 states. [2018-12-02 01:38:47,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 01:38:47,149 INFO L93 Difference]: Finished difference Result 374 states and 455 transitions. [2018-12-02 01:38:47,149 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 01:38:47,150 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2018-12-02 01:38:47,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 01:38:47,151 INFO L225 Difference]: With dead ends: 374 [2018-12-02 01:38:47,151 INFO L226 Difference]: Without dead ends: 274 [2018-12-02 01:38:47,152 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-02 01:38:47,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2018-12-02 01:38:47,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 262. [2018-12-02 01:38:47,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2018-12-02 01:38:47,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 318 transitions. [2018-12-02 01:38:47,171 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 318 transitions. Word has length 52 [2018-12-02 01:38:47,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 01:38:47,171 INFO L480 AbstractCegarLoop]: Abstraction has 262 states and 318 transitions. [2018-12-02 01:38:47,171 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 01:38:47,171 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 318 transitions. [2018-12-02 01:38:47,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-12-02 01:38:47,172 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 01:38:47,173 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 01:38:47,173 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 01:38:47,173 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:38:47,173 INFO L82 PathProgramCache]: Analyzing trace with hash -1701175612, now seen corresponding path program 1 times [2018-12-02 01:38:47,173 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 01:38:47,174 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:38:47,174 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 01:38:47,174 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:38:47,174 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 01:38:47,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 01:38:47,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 01:38:47,222 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 01:38:47,222 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 01:38:47,222 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 01:38:47,222 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 01:38:47,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 01:38:47,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-02 01:38:47,223 INFO L87 Difference]: Start difference. First operand 262 states and 318 transitions. Second operand 6 states. [2018-12-02 01:38:47,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 01:38:47,352 INFO L93 Difference]: Finished difference Result 723 states and 902 transitions. [2018-12-02 01:38:47,352 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 01:38:47,352 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2018-12-02 01:38:47,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 01:38:47,354 INFO L225 Difference]: With dead ends: 723 [2018-12-02 01:38:47,354 INFO L226 Difference]: Without dead ends: 485 [2018-12-02 01:38:47,355 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-12-02 01:38:47,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2018-12-02 01:38:47,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 479. [2018-12-02 01:38:47,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 479 states. [2018-12-02 01:38:47,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 586 transitions. [2018-12-02 01:38:47,380 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 586 transitions. Word has length 57 [2018-12-02 01:38:47,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 01:38:47,381 INFO L480 AbstractCegarLoop]: Abstraction has 479 states and 586 transitions. [2018-12-02 01:38:47,381 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 01:38:47,381 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 586 transitions. [2018-12-02 01:38:47,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-12-02 01:38:47,382 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 01:38:47,383 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 01:38:47,383 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 01:38:47,383 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:38:47,383 INFO L82 PathProgramCache]: Analyzing trace with hash -1085582904, now seen corresponding path program 1 times [2018-12-02 01:38:47,383 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 01:38:47,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:38:47,384 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 01:38:47,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:38:47,384 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 01:38:47,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 01:38:47,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 01:38:47,440 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 01:38:47,440 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 01:38:47,440 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 01:38:47,440 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 01:38:47,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 01:38:47,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-02 01:38:47,441 INFO L87 Difference]: Start difference. First operand 479 states and 586 transitions. Second operand 7 states. [2018-12-02 01:38:47,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 01:38:47,836 INFO L93 Difference]: Finished difference Result 1262 states and 1659 transitions. [2018-12-02 01:38:47,836 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-02 01:38:47,836 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 61 [2018-12-02 01:38:47,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 01:38:47,838 INFO L225 Difference]: With dead ends: 1262 [2018-12-02 01:38:47,838 INFO L226 Difference]: Without dead ends: 807 [2018-12-02 01:38:47,840 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-12-02 01:38:47,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 807 states. [2018-12-02 01:38:47,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 807 to 709. [2018-12-02 01:38:47,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 709 states. [2018-12-02 01:38:47,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 863 transitions. [2018-12-02 01:38:47,870 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 863 transitions. Word has length 61 [2018-12-02 01:38:47,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 01:38:47,870 INFO L480 AbstractCegarLoop]: Abstraction has 709 states and 863 transitions. [2018-12-02 01:38:47,870 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 01:38:47,871 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 863 transitions. [2018-12-02 01:38:47,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-12-02 01:38:47,872 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 01:38:47,872 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 01:38:47,872 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 01:38:47,872 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:38:47,872 INFO L82 PathProgramCache]: Analyzing trace with hash 1819188733, now seen corresponding path program 1 times [2018-12-02 01:38:47,872 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 01:38:47,873 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:38:47,873 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 01:38:47,873 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:38:47,873 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 01:38:47,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 01:38:47,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 01:38:47,916 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 01:38:47,916 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-02 01:38:47,916 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 01:38:47,916 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-02 01:38:47,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-02 01:38:47,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-02 01:38:47,916 INFO L87 Difference]: Start difference. First operand 709 states and 863 transitions. Second operand 8 states. [2018-12-02 01:38:47,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 01:38:47,957 INFO L93 Difference]: Finished difference Result 1422 states and 1790 transitions. [2018-12-02 01:38:47,957 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 01:38:47,957 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 84 [2018-12-02 01:38:47,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 01:38:47,959 INFO L225 Difference]: With dead ends: 1422 [2018-12-02 01:38:47,959 INFO L226 Difference]: Without dead ends: 737 [2018-12-02 01:38:47,961 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-02 01:38:47,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2018-12-02 01:38:47,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 725. [2018-12-02 01:38:47,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 725 states. [2018-12-02 01:38:47,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 879 transitions. [2018-12-02 01:38:47,983 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 879 transitions. Word has length 84 [2018-12-02 01:38:47,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 01:38:47,983 INFO L480 AbstractCegarLoop]: Abstraction has 725 states and 879 transitions. [2018-12-02 01:38:47,984 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-02 01:38:47,984 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 879 transitions. [2018-12-02 01:38:47,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-12-02 01:38:47,985 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 01:38:47,985 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 01:38:47,985 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 01:38:47,985 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:38:47,985 INFO L82 PathProgramCache]: Analyzing trace with hash 1796556479, now seen corresponding path program 1 times [2018-12-02 01:38:47,985 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 01:38:47,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:38:47,986 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 01:38:47,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:38:47,986 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 01:38:47,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 01:38:48,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 01:38:48,028 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 01:38:48,029 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 01:38:48,029 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 01:38:48,029 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 01:38:48,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 01:38:48,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-02 01:38:48,029 INFO L87 Difference]: Start difference. First operand 725 states and 879 transitions. Second operand 6 states. [2018-12-02 01:38:48,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 01:38:48,059 INFO L93 Difference]: Finished difference Result 1446 states and 1784 transitions. [2018-12-02 01:38:48,059 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 01:38:48,059 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 84 [2018-12-02 01:38:48,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 01:38:48,061 INFO L225 Difference]: With dead ends: 1446 [2018-12-02 01:38:48,061 INFO L226 Difference]: Without dead ends: 745 [2018-12-02 01:38:48,063 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-02 01:38:48,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2018-12-02 01:38:48,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 745. [2018-12-02 01:38:48,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 745 states. [2018-12-02 01:38:48,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 899 transitions. [2018-12-02 01:38:48,085 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 899 transitions. Word has length 84 [2018-12-02 01:38:48,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 01:38:48,085 INFO L480 AbstractCegarLoop]: Abstraction has 745 states and 899 transitions. [2018-12-02 01:38:48,085 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 01:38:48,085 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 899 transitions. [2018-12-02 01:38:48,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-12-02 01:38:48,086 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 01:38:48,086 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 01:38:48,086 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 01:38:48,086 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:38:48,087 INFO L82 PathProgramCache]: Analyzing trace with hash -1450286564, now seen corresponding path program 1 times [2018-12-02 01:38:48,087 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 01:38:48,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:38:48,087 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 01:38:48,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:38:48,087 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 01:38:48,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 01:38:48,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 01:38:48,142 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 01:38:48,143 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-02 01:38:48,143 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 01:38:48,143 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-02 01:38:48,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-02 01:38:48,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-02 01:38:48,143 INFO L87 Difference]: Start difference. First operand 745 states and 899 transitions. Second operand 4 states. [2018-12-02 01:38:48,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 01:38:48,280 INFO L93 Difference]: Finished difference Result 2431 states and 3078 transitions. [2018-12-02 01:38:48,280 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-02 01:38:48,280 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 84 [2018-12-02 01:38:48,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 01:38:48,284 INFO L225 Difference]: With dead ends: 2431 [2018-12-02 01:38:48,284 INFO L226 Difference]: Without dead ends: 1710 [2018-12-02 01:38:48,286 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-02 01:38:48,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1710 states. [2018-12-02 01:38:48,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1710 to 1679. [2018-12-02 01:38:48,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1679 states. [2018-12-02 01:38:48,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1679 states to 1679 states and 2075 transitions. [2018-12-02 01:38:48,341 INFO L78 Accepts]: Start accepts. Automaton has 1679 states and 2075 transitions. Word has length 84 [2018-12-02 01:38:48,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 01:38:48,342 INFO L480 AbstractCegarLoop]: Abstraction has 1679 states and 2075 transitions. [2018-12-02 01:38:48,342 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-02 01:38:48,342 INFO L276 IsEmpty]: Start isEmpty. Operand 1679 states and 2075 transitions. [2018-12-02 01:38:48,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-12-02 01:38:48,343 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 01:38:48,343 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 01:38:48,344 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 01:38:48,344 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:38:48,344 INFO L82 PathProgramCache]: Analyzing trace with hash -1691648010, now seen corresponding path program 1 times [2018-12-02 01:38:48,344 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 01:38:48,344 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:38:48,344 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 01:38:48,344 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:38:48,345 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 01:38:48,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 01:38:48,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 01:38:48,411 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-02 01:38:48,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 01:38:48 BoogieIcfgContainer [2018-12-02 01:38:48,476 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 01:38:48,477 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 01:38:48,477 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 01:38:48,477 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 01:38:48,477 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:38:46" (3/4) ... [2018-12-02 01:38:48,479 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-02 01:38:48,543 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_6d24bda7-1acf-4330-a2b4-8bc80704a25e/bin-2019/utaipan/witness.graphml [2018-12-02 01:38:48,543 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 01:38:48,544 INFO L168 Benchmark]: Toolchain (without parser) took 2813.21 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 227.0 MB). Free memory was 948.1 MB in the beginning and 896.6 MB in the end (delta: 51.4 MB). Peak memory consumption was 278.5 MB. Max. memory is 11.5 GB. [2018-12-02 01:38:48,544 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 01:38:48,545 INFO L168 Benchmark]: CACSL2BoogieTranslator took 282.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -154.4 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2018-12-02 01:38:48,545 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.31 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 01:38:48,545 INFO L168 Benchmark]: Boogie Preprocessor took 22.75 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 01:38:48,545 INFO L168 Benchmark]: RCFGBuilder took 373.03 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 51.4 MB). Peak memory consumption was 51.4 MB. Max. memory is 11.5 GB. [2018-12-02 01:38:48,545 INFO L168 Benchmark]: TraceAbstraction took 2045.48 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 107.5 MB). Free memory was 1.1 GB in the beginning and 923.3 MB in the end (delta: 127.7 MB). Peak memory consumption was 235.2 MB. Max. memory is 11.5 GB. [2018-12-02 01:38:48,545 INFO L168 Benchmark]: Witness Printer took 66.71 ms. Allocated memory is still 1.3 GB. Free memory was 923.3 MB in the beginning and 896.6 MB in the end (delta: 26.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. [2018-12-02 01:38:48,547 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 282.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -154.4 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.31 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.75 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 373.03 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 51.4 MB). Peak memory consumption was 51.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2045.48 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 107.5 MB). Free memory was 1.1 GB in the beginning and 923.3 MB in the end (delta: 127.7 MB). Peak memory consumption was 235.2 MB. Max. memory is 11.5 GB. * Witness Printer took 66.71 ms. Allocated memory is still 1.3 GB. Free memory was 923.3 MB in the beginning and 896.6 MB in the end (delta: 26.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 490]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L51] int pumpRunning = 0; [L52] int systemActive = 1; [L352] int cleanupTimeShifts = 4; [L664] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L862] int waterLevel = 1; [L863] int methaneLevelCritical = 0; [L428] int retValue_acc ; [L429] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L433] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L434] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L435] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L477] int retValue_acc ; [L480] retValue_acc = 1 [L481] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L435] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L435] tmp = valid_product() [L437] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L439] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L440] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L419] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L257] int splverifierCounter ; [L258] int tmp ; [L259] int tmp___0 ; [L260] int tmp___1 ; [L261] int tmp___2 ; [L264] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L266] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L268] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L274] tmp = __VERIFIER_nondet_int() [L276] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L278] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L880] COND TRUE waterLevel < 2 [L881] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L278] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L284] tmp___0 = __VERIFIER_nondet_int() [L286] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L288] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L892] COND FALSE !(\read(methaneLevelCritical)) [L895] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L288] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L294] tmp___2 = __VERIFIER_nondet_int() [L296] COND FALSE !(\read(tmp___2)) [L302] tmp___1 = __VERIFIER_nondet_int() [L304] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___1=0, tmp___2=0, waterLevel=2] [L313] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L59] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L66] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L68] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L114] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L117] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L132] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L88] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L91] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L93] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L211] int retValue_acc ; [L212] int tmp ; [L213] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L217] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L942] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L945] COND FALSE !(waterLevel < 2) [L949] retValue_acc = 0 [L950] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L217] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L217] tmp = isHighWaterSensorDry() [L219] COND FALSE !(\read(tmp)) [L222] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L224] retValue_acc = tmp___0 [L225] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L93] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L93] tmp = isHighWaterLevel() [L95] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L97] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L142] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L97] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L132] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L68] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L74] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L327] int tmp ; [L328] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L332] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L901] int retValue_acc ; [L904] retValue_acc = methaneLevelCritical [L905] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L332] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L332] tmp = isMethaneLevelCritical() [L334] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L336] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L166] int retValue_acc ; [L169] retValue_acc = pumpRunning [L170] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L336] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L336] tmp___0 = isPumpRunning() [L338] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L340] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L490] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 28 procedures, 146 locations, 1 error locations. UNSAFE Result, 2.0s OverallTime, 9 OverallIterations, 1 TraceHistogramMax, 1.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1330 SDtfs, 721 SDslu, 3174 SDs, 0 SdLazy, 892 SolverSat, 122 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1679occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 159 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 603 NumberOfCodeBlocks, 603 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 507 ConstructedInterpolants, 0 QuantifiedInterpolants, 56641 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...