./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product55_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_89da83a0-c4d8-4b13-9386-974dd1aafda0/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_89da83a0-c4d8-4b13-9386-974dd1aafda0/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_89da83a0-c4d8-4b13-9386-974dd1aafda0/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_89da83a0-c4d8-4b13-9386-974dd1aafda0/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product55_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_89da83a0-c4d8-4b13-9386-974dd1aafda0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_89da83a0-c4d8-4b13-9386-974dd1aafda0/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 f98010979adc33ea49508c52e1057d4173359b78 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 [2018-12-03 01:51:49,909 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 01:51:49,910 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 01:51:49,916 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 01:51:49,917 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 01:51:49,917 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 01:51:49,918 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 01:51:49,919 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 01:51:49,919 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 01:51:49,920 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 01:51:49,920 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 01:51:49,920 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 01:51:49,921 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 01:51:49,921 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 01:51:49,922 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 01:51:49,922 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 01:51:49,922 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 01:51:49,923 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 01:51:49,924 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 01:51:49,925 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 01:51:49,925 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 01:51:49,926 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 01:51:49,927 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 01:51:49,927 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 01:51:49,927 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 01:51:49,927 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 01:51:49,928 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 01:51:49,928 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 01:51:49,929 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 01:51:49,929 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 01:51:49,929 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 01:51:49,930 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-03 01:51:49,930 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-03 01:51:49,930 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-03 01:51:49,930 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-03 01:51:49,931 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-03 01:51:49,931 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_89da83a0-c4d8-4b13-9386-974dd1aafda0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-03 01:51:49,938 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 01:51:49,938 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 01:51:49,938 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 01:51:49,938 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 01:51:49,939 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 01:51:49,939 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 01:51:49,939 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 01:51:49,939 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 01:51:49,939 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 01:51:49,939 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-03 01:51:49,939 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 01:51:49,939 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-03 01:51:49,939 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 01:51:49,940 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 01:51:49,940 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 01:51:49,940 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 01:51:49,940 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 01:51:49,940 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 01:51:49,940 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 01:51:49,940 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 01:51:49,940 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 01:51:49,940 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 01:51:49,941 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 01:51:49,941 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 01:51:49,941 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 01:51:49,941 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 01:51:49,941 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-03 01:51:49,941 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 01:51:49,941 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 01:51:49,941 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 01:51:49,941 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 01:51:49,941 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 01:51:49,942 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 01:51:49,942 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 01:51:49,942 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 01:51:49,942 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 01:51:49,942 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_89da83a0-c4d8-4b13-9386-974dd1aafda0/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 -> f98010979adc33ea49508c52e1057d4173359b78 [2018-12-03 01:51:49,960 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 01:51:49,969 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 01:51:49,971 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 01:51:49,973 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-03 01:51:49,973 INFO L276 PluginConnector]: CDTParser initialized [2018-12-03 01:51:49,973 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_89da83a0-c4d8-4b13-9386-974dd1aafda0/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product55_false-unreach-call_false-termination.cil.c [2018-12-03 01:51:50,011 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_89da83a0-c4d8-4b13-9386-974dd1aafda0/bin-2019/utaipan/data/15290fb81/79e0696c52864bceac1937a08e70a7b8/FLAGd0ff59143 [2018-12-03 01:51:50,466 INFO L307 CDTParser]: Found 1 translation units. [2018-12-03 01:51:50,466 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_89da83a0-c4d8-4b13-9386-974dd1aafda0/sv-benchmarks/c/product-lines/minepump_spec1_product55_false-unreach-call_false-termination.cil.c [2018-12-03 01:51:50,473 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_89da83a0-c4d8-4b13-9386-974dd1aafda0/bin-2019/utaipan/data/15290fb81/79e0696c52864bceac1937a08e70a7b8/FLAGd0ff59143 [2018-12-03 01:51:50,481 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_89da83a0-c4d8-4b13-9386-974dd1aafda0/bin-2019/utaipan/data/15290fb81/79e0696c52864bceac1937a08e70a7b8 [2018-12-03 01:51:50,483 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 01:51:50,484 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-03 01:51:50,485 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-03 01:51:50,485 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-03 01:51:50,487 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-03 01:51:50,487 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:51:50" (1/1) ... [2018-12-03 01:51:50,489 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@354f5439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:51:50, skipping insertion in model container [2018-12-03 01:51:50,489 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:51:50" (1/1) ... [2018-12-03 01:51:50,493 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-03 01:51:50,515 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-03 01:51:50,667 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 01:51:50,711 INFO L191 MainTranslator]: Completed pre-run [2018-12-03 01:51:50,754 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 01:51:50,771 INFO L195 MainTranslator]: Completed translation [2018-12-03 01:51:50,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:51:50 WrapperNode [2018-12-03 01:51:50,772 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-03 01:51:50,772 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 01:51:50,772 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 01:51:50,773 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 01:51:50,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:51:50" (1/1) ... [2018-12-03 01:51:50,787 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:51:50" (1/1) ... [2018-12-03 01:51:50,792 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 01:51:50,793 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 01:51:50,793 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 01:51:50,793 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 01:51:50,798 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:51:50" (1/1) ... [2018-12-03 01:51:50,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:51:50" (1/1) ... [2018-12-03 01:51:50,801 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:51:50" (1/1) ... [2018-12-03 01:51:50,801 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:51:50" (1/1) ... [2018-12-03 01:51:50,807 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:51:50" (1/1) ... [2018-12-03 01:51:50,811 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:51:50" (1/1) ... [2018-12-03 01:51:50,813 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:51:50" (1/1) ... [2018-12-03 01:51:50,815 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 01:51:50,815 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 01:51:50,815 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 01:51:50,815 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 01:51:50,816 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:51:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89da83a0-c4d8-4b13-9386-974dd1aafda0/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 [2018-12-03 01:51:50,849 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-03 01:51:50,849 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-03 01:51:50,849 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-03 01:51:50,849 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-03 01:51:50,849 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2018-12-03 01:51:50,849 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2018-12-03 01:51:50,849 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-12-03 01:51:50,849 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-12-03 01:51:50,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-03 01:51:50,850 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-03 01:51:50,850 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-03 01:51:50,850 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-03 01:51:50,850 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-03 01:51:50,850 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-03 01:51:50,850 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-03 01:51:50,850 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-03 01:51:50,850 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-03 01:51:50,850 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-03 01:51:50,851 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-03 01:51:50,851 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-12-03 01:51:50,851 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-12-03 01:51:50,851 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-03 01:51:50,851 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-03 01:51:50,851 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-03 01:51:50,851 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-03 01:51:50,851 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-03 01:51:50,851 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-03 01:51:50,851 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-03 01:51:50,852 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-03 01:51:50,852 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-03 01:51:50,852 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-03 01:51:50,852 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-03 01:51:50,852 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-03 01:51:50,852 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-12-03 01:51:50,852 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-12-03 01:51:50,852 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-03 01:51:50,852 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-03 01:51:50,852 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-03 01:51:50,853 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-03 01:51:50,853 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2018-12-03 01:51:50,853 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2018-12-03 01:51:50,853 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-03 01:51:50,853 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-03 01:51:50,853 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-03 01:51:50,853 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-03 01:51:50,853 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-03 01:51:50,853 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-03 01:51:50,853 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-12-03 01:51:50,854 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-12-03 01:51:50,854 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-03 01:51:50,854 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-03 01:51:50,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-03 01:51:50,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-03 01:51:50,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-03 01:51:50,854 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-03 01:51:50,854 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-03 01:51:50,854 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-03 01:51:50,854 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-03 01:51:50,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 01:51:50,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 01:51:50,855 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2018-12-03 01:51:50,855 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2018-12-03 01:51:51,137 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 01:51:51,137 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-03 01:51:51,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:51:51 BoogieIcfgContainer [2018-12-03 01:51:51,138 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 01:51:51,138 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 01:51:51,138 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 01:51:51,140 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 01:51:51,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 01:51:50" (1/3) ... [2018-12-03 01:51:51,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d2effd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 01:51:51, skipping insertion in model container [2018-12-03 01:51:51,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:51:50" (2/3) ... [2018-12-03 01:51:51,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d2effd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 01:51:51, skipping insertion in model container [2018-12-03 01:51:51,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:51:51" (3/3) ... [2018-12-03 01:51:51,142 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product55_false-unreach-call_false-termination.cil.c [2018-12-03 01:51:51,148 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 01:51:51,153 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-03 01:51:51,162 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-03 01:51:51,180 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 01:51:51,180 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 01:51:51,180 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 01:51:51,180 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 01:51:51,180 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 01:51:51,180 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 01:51:51,181 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 01:51:51,181 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 01:51:51,193 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states. [2018-12-03 01:51:51,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-03 01:51:51,198 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 01:51:51,199 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] [2018-12-03 01:51:51,200 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 01:51:51,203 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 01:51:51,203 INFO L82 PathProgramCache]: Analyzing trace with hash 1471376431, now seen corresponding path program 1 times [2018-12-03 01:51:51,205 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 01:51:51,232 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 01:51:51,232 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 01:51:51,233 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 01:51:51,233 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 01:51:51,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 01:51:51,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 01:51:51,342 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 01:51:51,342 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-03 01:51:51,342 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 01:51:51,345 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-03 01:51:51,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-03 01:51:51,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-03 01:51:51,354 INFO L87 Difference]: Start difference. First operand 162 states. Second operand 2 states. [2018-12-03 01:51:51,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 01:51:51,386 INFO L93 Difference]: Finished difference Result 298 states and 373 transitions. [2018-12-03 01:51:51,386 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-03 01:51:51,387 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-03 01:51:51,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 01:51:51,394 INFO L225 Difference]: With dead ends: 298 [2018-12-03 01:51:51,394 INFO L226 Difference]: Without dead ends: 149 [2018-12-03 01:51:51,397 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 [2018-12-03 01:51:51,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2018-12-03 01:51:51,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2018-12-03 01:51:51,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2018-12-03 01:51:51,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 178 transitions. [2018-12-03 01:51:51,428 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 178 transitions. Word has length 46 [2018-12-03 01:51:51,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 01:51:51,428 INFO L480 AbstractCegarLoop]: Abstraction has 149 states and 178 transitions. [2018-12-03 01:51:51,428 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-03 01:51:51,429 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 178 transitions. [2018-12-03 01:51:51,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-03 01:51:51,430 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 01:51:51,430 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] [2018-12-03 01:51:51,431 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 01:51:51,431 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 01:51:51,431 INFO L82 PathProgramCache]: Analyzing trace with hash 758774715, now seen corresponding path program 1 times [2018-12-03 01:51:51,431 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 01:51:51,432 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 01:51:51,432 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 01:51:51,432 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 01:51:51,432 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 01:51:51,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 01:51:51,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 01:51:51,485 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 01:51:51,485 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-03 01:51:51,485 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 01:51:51,486 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 01:51:51,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 01:51:51,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 01:51:51,486 INFO L87 Difference]: Start difference. First operand 149 states and 178 transitions. Second operand 3 states. [2018-12-03 01:51:51,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 01:51:51,500 INFO L93 Difference]: Finished difference Result 241 states and 287 transitions. [2018-12-03 01:51:51,500 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 01:51:51,500 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-03 01:51:51,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 01:51:51,502 INFO L225 Difference]: With dead ends: 241 [2018-12-03 01:51:51,502 INFO L226 Difference]: Without dead ends: 140 [2018-12-03 01:51:51,502 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 [2018-12-03 01:51:51,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2018-12-03 01:51:51,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2018-12-03 01:51:51,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2018-12-03 01:51:51,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 166 transitions. [2018-12-03 01:51:51,510 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 166 transitions. Word has length 47 [2018-12-03 01:51:51,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 01:51:51,510 INFO L480 AbstractCegarLoop]: Abstraction has 140 states and 166 transitions. [2018-12-03 01:51:51,511 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 01:51:51,511 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 166 transitions. [2018-12-03 01:51:51,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-12-03 01:51:51,511 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 01:51:51,512 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 01:51:51,512 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 01:51:51,512 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 01:51:51,512 INFO L82 PathProgramCache]: Analyzing trace with hash 1394019342, now seen corresponding path program 1 times [2018-12-03 01:51:51,512 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 01:51:51,512 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 01:51:51,512 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 01:51:51,513 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 01:51:51,513 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 01:51:51,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 01:51:51,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 01:51:51,575 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 01:51:51,575 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-03 01:51:51,576 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 01:51:51,576 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-03 01:51:51,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-03 01:51:51,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-03 01:51:51,576 INFO L87 Difference]: Start difference. First operand 140 states and 166 transitions. Second operand 7 states. [2018-12-03 01:51:51,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 01:51:51,844 INFO L93 Difference]: Finished difference Result 422 states and 516 transitions. [2018-12-03 01:51:51,844 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-03 01:51:51,845 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2018-12-03 01:51:51,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 01:51:51,848 INFO L225 Difference]: With dead ends: 422 [2018-12-03 01:51:51,848 INFO L226 Difference]: Without dead ends: 306 [2018-12-03 01:51:51,849 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 [2018-12-03 01:51:51,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2018-12-03 01:51:51,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 298. [2018-12-03 01:51:51,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2018-12-03 01:51:51,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 364 transitions. [2018-12-03 01:51:51,877 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 364 transitions. Word has length 51 [2018-12-03 01:51:51,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 01:51:51,878 INFO L480 AbstractCegarLoop]: Abstraction has 298 states and 364 transitions. [2018-12-03 01:51:51,878 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-03 01:51:51,878 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 364 transitions. [2018-12-03 01:51:51,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-12-03 01:51:51,880 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 01:51:51,880 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] [2018-12-03 01:51:51,880 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 01:51:51,881 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 01:51:51,881 INFO L82 PathProgramCache]: Analyzing trace with hash 1824217401, now seen corresponding path program 1 times [2018-12-03 01:51:51,881 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 01:51:51,882 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 01:51:51,882 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 01:51:51,882 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 01:51:51,882 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 01:51:51,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 01:51:51,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 01:51:51,954 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 01:51:51,954 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-03 01:51:51,954 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 01:51:51,954 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-03 01:51:51,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-03 01:51:51,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-03 01:51:51,955 INFO L87 Difference]: Start difference. First operand 298 states and 364 transitions. Second operand 6 states. [2018-12-03 01:51:52,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 01:51:52,088 INFO L93 Difference]: Finished difference Result 831 states and 1040 transitions. [2018-12-03 01:51:52,088 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-03 01:51:52,088 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2018-12-03 01:51:52,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 01:51:52,091 INFO L225 Difference]: With dead ends: 831 [2018-12-03 01:51:52,091 INFO L226 Difference]: Without dead ends: 557 [2018-12-03 01:51:52,092 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 [2018-12-03 01:51:52,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2018-12-03 01:51:52,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 551. [2018-12-03 01:51:52,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 551 states. [2018-12-03 01:51:52,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 678 transitions. [2018-12-03 01:51:52,126 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 678 transitions. Word has length 57 [2018-12-03 01:51:52,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 01:51:52,126 INFO L480 AbstractCegarLoop]: Abstraction has 551 states and 678 transitions. [2018-12-03 01:51:52,126 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-03 01:51:52,127 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 678 transitions. [2018-12-03 01:51:52,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-12-03 01:51:52,128 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 01:51:52,129 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] [2018-12-03 01:51:52,129 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 01:51:52,129 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 01:51:52,129 INFO L82 PathProgramCache]: Analyzing trace with hash -1509256291, now seen corresponding path program 1 times [2018-12-03 01:51:52,129 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 01:51:52,130 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 01:51:52,130 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 01:51:52,130 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 01:51:52,130 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 01:51:52,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 01:51:52,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 01:51:52,213 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 01:51:52,213 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-03 01:51:52,213 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 01:51:52,214 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-03 01:51:52,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-03 01:51:52,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-03 01:51:52,214 INFO L87 Difference]: Start difference. First operand 551 states and 678 transitions. Second operand 7 states. [2018-12-03 01:51:52,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 01:51:52,567 INFO L93 Difference]: Finished difference Result 1428 states and 1879 transitions. [2018-12-03 01:51:52,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-03 01:51:52,568 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 61 [2018-12-03 01:51:52,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 01:51:52,570 INFO L225 Difference]: With dead ends: 1428 [2018-12-03 01:51:52,570 INFO L226 Difference]: Without dead ends: 901 [2018-12-03 01:51:52,571 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 [2018-12-03 01:51:52,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2018-12-03 01:51:52,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 805. [2018-12-03 01:51:52,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 805 states. [2018-12-03 01:51:52,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 805 states to 805 states and 983 transitions. [2018-12-03 01:51:52,602 INFO L78 Accepts]: Start accepts. Automaton has 805 states and 983 transitions. Word has length 61 [2018-12-03 01:51:52,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 01:51:52,603 INFO L480 AbstractCegarLoop]: Abstraction has 805 states and 983 transitions. [2018-12-03 01:51:52,603 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-03 01:51:52,603 INFO L276 IsEmpty]: Start isEmpty. Operand 805 states and 983 transitions. [2018-12-03 01:51:52,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-12-03 01:51:52,604 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 01:51:52,604 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] [2018-12-03 01:51:52,604 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 01:51:52,604 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 01:51:52,604 INFO L82 PathProgramCache]: Analyzing trace with hash -1034149815, now seen corresponding path program 1 times [2018-12-03 01:51:52,604 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 01:51:52,605 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 01:51:52,605 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 01:51:52,605 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 01:51:52,605 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 01:51:52,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 01:51:52,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 01:51:52,650 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 01:51:52,650 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-03 01:51:52,650 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 01:51:52,650 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-03 01:51:52,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-03 01:51:52,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-03 01:51:52,651 INFO L87 Difference]: Start difference. First operand 805 states and 983 transitions. Second operand 6 states. [2018-12-03 01:51:52,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 01:51:52,696 INFO L93 Difference]: Finished difference Result 1606 states and 2000 transitions. [2018-12-03 01:51:52,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-03 01:51:52,697 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 88 [2018-12-03 01:51:52,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 01:51:52,699 INFO L225 Difference]: With dead ends: 1606 [2018-12-03 01:51:52,699 INFO L226 Difference]: Without dead ends: 825 [2018-12-03 01:51:52,700 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 [2018-12-03 01:51:52,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 825 states. [2018-12-03 01:51:52,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 825 to 825. [2018-12-03 01:51:52,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 825 states. [2018-12-03 01:51:52,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 1003 transitions. [2018-12-03 01:51:52,727 INFO L78 Accepts]: Start accepts. Automaton has 825 states and 1003 transitions. Word has length 88 [2018-12-03 01:51:52,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 01:51:52,727 INFO L480 AbstractCegarLoop]: Abstraction has 825 states and 1003 transitions. [2018-12-03 01:51:52,727 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-03 01:51:52,727 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 1003 transitions. [2018-12-03 01:51:52,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-12-03 01:51:52,729 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 01:51:52,729 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] [2018-12-03 01:51:52,729 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 01:51:52,729 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 01:51:52,729 INFO L82 PathProgramCache]: Analyzing trace with hash -759390201, now seen corresponding path program 1 times [2018-12-03 01:51:52,729 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 01:51:52,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 01:51:52,730 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 01:51:52,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 01:51:52,730 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 01:51:52,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 01:51:52,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 01:51:52,790 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 01:51:52,790 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-03 01:51:52,790 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 01:51:52,790 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-03 01:51:52,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-03 01:51:52,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-03 01:51:52,790 INFO L87 Difference]: Start difference. First operand 825 states and 1003 transitions. Second operand 8 states. [2018-12-03 01:51:52,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 01:51:52,829 INFO L93 Difference]: Finished difference Result 1654 states and 2086 transitions. [2018-12-03 01:51:52,829 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-03 01:51:52,829 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 88 [2018-12-03 01:51:52,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 01:51:52,833 INFO L225 Difference]: With dead ends: 1654 [2018-12-03 01:51:52,833 INFO L226 Difference]: Without dead ends: 853 [2018-12-03 01:51:52,835 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 [2018-12-03 01:51:52,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2018-12-03 01:51:52,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 841. [2018-12-03 01:51:52,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 841 states. [2018-12-03 01:51:52,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 841 states to 841 states and 1019 transitions. [2018-12-03 01:51:52,868 INFO L78 Accepts]: Start accepts. Automaton has 841 states and 1019 transitions. Word has length 88 [2018-12-03 01:51:52,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 01:51:52,868 INFO L480 AbstractCegarLoop]: Abstraction has 841 states and 1019 transitions. [2018-12-03 01:51:52,868 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-03 01:51:52,868 INFO L276 IsEmpty]: Start isEmpty. Operand 841 states and 1019 transitions. [2018-12-03 01:51:52,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-12-03 01:51:52,870 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 01:51:52,870 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] [2018-12-03 01:51:52,870 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 01:51:52,870 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 01:51:52,871 INFO L82 PathProgramCache]: Analyzing trace with hash 1190910054, now seen corresponding path program 1 times [2018-12-03 01:51:52,871 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 01:51:52,871 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 01:51:52,871 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 01:51:52,871 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 01:51:52,871 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 01:51:52,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 01:51:52,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 01:51:52,927 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 01:51:52,927 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-03 01:51:52,927 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 01:51:52,927 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-03 01:51:52,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-03 01:51:52,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-03 01:51:52,928 INFO L87 Difference]: Start difference. First operand 841 states and 1019 transitions. Second operand 4 states. [2018-12-03 01:51:53,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 01:51:53,097 INFO L93 Difference]: Finished difference Result 2723 states and 3462 transitions. [2018-12-03 01:51:53,097 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-03 01:51:53,097 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 88 [2018-12-03 01:51:53,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 01:51:53,102 INFO L225 Difference]: With dead ends: 2723 [2018-12-03 01:51:53,102 INFO L226 Difference]: Without dead ends: 1906 [2018-12-03 01:51:53,104 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 [2018-12-03 01:51:53,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1906 states. [2018-12-03 01:51:53,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1906 to 1875. [2018-12-03 01:51:53,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1875 states. [2018-12-03 01:51:53,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1875 states to 1875 states and 2331 transitions. [2018-12-03 01:51:53,166 INFO L78 Accepts]: Start accepts. Automaton has 1875 states and 2331 transitions. Word has length 88 [2018-12-03 01:51:53,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 01:51:53,166 INFO L480 AbstractCegarLoop]: Abstraction has 1875 states and 2331 transitions. [2018-12-03 01:51:53,166 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-03 01:51:53,166 INFO L276 IsEmpty]: Start isEmpty. Operand 1875 states and 2331 transitions. [2018-12-03 01:51:53,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-12-03 01:51:53,168 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 01:51:53,168 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, 1, 1, 1, 1] [2018-12-03 01:51:53,169 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 01:51:53,169 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 01:51:53,169 INFO L82 PathProgramCache]: Analyzing trace with hash 1201948192, now seen corresponding path program 1 times [2018-12-03 01:51:53,169 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 01:51:53,170 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 01:51:53,170 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 01:51:53,170 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 01:51:53,170 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 01:51:53,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-03 01:51:53,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-03 01:51:53,236 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-03 01:51:53,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 01:51:53 BoogieIcfgContainer [2018-12-03 01:51:53,303 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 01:51:53,303 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-03 01:51:53,303 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-03 01:51:53,303 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-03 01:51:53,304 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:51:51" (3/4) ... [2018-12-03 01:51:53,305 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-03 01:51:53,371 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_89da83a0-c4d8-4b13-9386-974dd1aafda0/bin-2019/utaipan/witness.graphml [2018-12-03 01:51:53,371 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-03 01:51:53,371 INFO L168 Benchmark]: Toolchain (without parser) took 2887.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 948.1 MB in the beginning and 960.6 MB in the end (delta: -12.5 MB). Peak memory consumption was 138.5 MB. Max. memory is 11.5 GB. [2018-12-03 01:51:53,372 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 01:51:53,372 INFO L168 Benchmark]: CACSL2BoogieTranslator took 287.44 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 79.2 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -120.4 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. [2018-12-03 01:51:53,373 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.00 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. [2018-12-03 01:51:53,373 INFO L168 Benchmark]: Boogie Preprocessor took 22.50 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-03 01:51:53,373 INFO L168 Benchmark]: RCFGBuilder took 322.42 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 52.0 MB). Peak memory consumption was 52.0 MB. Max. memory is 11.5 GB. [2018-12-03 01:51:53,373 INFO L168 Benchmark]: TraceAbstraction took 2164.67 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 71.8 MB). Free memory was 1.0 GB in the beginning and 997.1 MB in the end (delta: 16.8 MB). Peak memory consumption was 88.6 MB. Max. memory is 11.5 GB. [2018-12-03 01:51:53,374 INFO L168 Benchmark]: Witness Printer took 67.76 ms. Allocated memory is still 1.2 GB. Free memory was 997.1 MB in the beginning and 960.6 MB in the end (delta: 36.4 MB). Peak memory consumption was 36.4 MB. Max. memory is 11.5 GB. [2018-12-03 01:51:53,375 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 287.44 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 79.2 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -120.4 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.00 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 22.50 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 322.42 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 52.0 MB). Peak memory consumption was 52.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2164.67 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 71.8 MB). Free memory was 1.0 GB in the beginning and 997.1 MB in the end (delta: 16.8 MB). Peak memory consumption was 88.6 MB. Max. memory is 11.5 GB. * Witness Printer took 67.76 ms. Allocated memory is still 1.2 GB. Free memory was 997.1 MB in the beginning and 960.6 MB in the end (delta: 36.4 MB). Peak memory consumption was 36.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 506]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L159] int pumpRunning = 0; [L160] int systemActive = 1; [L399] int waterLevel = 1; [L400] int methaneLevelCritical = 0; [L511] int cleanupTimeShifts = 4; [L802] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L584] int retValue_acc ; [L585] 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] [L589] 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] [L590] 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] [L591] 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] [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] 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] [L591] 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] [L591] tmp = valid_product() [L593] 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] [L595] 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] [L596] 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] [L578] 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] [L84] int splverifierCounter ; [L85] int tmp ; [L86] int tmp___0 ; [L87] int tmp___1 ; [L88] int tmp___2 ; [L91] 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] [L93] 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] [L95] 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] [L101] tmp = __VERIFIER_nondet_int() [L103] 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] [L105] 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] [L417] COND TRUE waterLevel < 2 [L418] 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] [L105] 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] [L111] tmp___0 = __VERIFIER_nondet_int() [L113] 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] [L115] 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] [L429] COND FALSE !(\read(methaneLevelCritical)) [L432] 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] [L115] 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] [L121] tmp___2 = __VERIFIER_nondet_int() [L123] COND TRUE \read(tmp___2) 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___2=1, waterLevel=2] [L138] 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] [L167] 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] [L174] 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] [L176] 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] [L248] 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] [L251] 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] [L266] CALL processEnvironment__wrappee__lowWaterSensor() 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] [L222] 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] [L225] 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] [L240] 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] [L196] 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] [L199] 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] [L201] 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] [L345] int retValue_acc ; [L346] int tmp ; [L347] 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] [L351] 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] [L479] 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] [L482] COND FALSE !(waterLevel < 2) [L486] retValue_acc = 0 [L487] 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] [L351] 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] [L351] tmp = isHighWaterSensorDry() [L353] COND FALSE !(\read(tmp)) [L356] 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] [L358] retValue_acc = tmp___0 [L359] 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] [L201] 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] [L201] tmp = isHighWaterLevel() [L203] 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] [L205] 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] [L276] 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] [L205] 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] [L240] 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] [L266] RET processEnvironment__wrappee__lowWaterSensor() 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] [L176] 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] [L182] 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] [L608] int tmp ; [L609] 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] [L613] 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] [L438] int retValue_acc ; [L441] retValue_acc = methaneLevelCritical [L442] 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] [L613] 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] [L613] tmp = isMethaneLevelCritical() [L615] 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] [L617] 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] [L300] int retValue_acc ; [L303] retValue_acc = pumpRunning [L304] 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] [L617] 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] [L617] tmp___0 = isPumpRunning() [L619] 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] [L621] 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] [L506] __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 30 procedures, 162 locations, 1 error locations. UNSAFE Result, 2.1s OverallTime, 9 OverallIterations, 1 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1522 SDtfs, 826 SDslu, 3644 SDs, 0 SdLazy, 1000 SolverSat, 126 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, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1875occurred 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, 153 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 618 NumberOfCodeBlocks, 618 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 518 ConstructedInterpolants, 0 QuantifiedInterpolants, 59196 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...