./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product53_false-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_850bb0c2-eb84-4503-8ff6-f69e1a06dffe/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_850bb0c2-eb84-4503-8ff6-f69e1a06dffe/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_850bb0c2-eb84-4503-8ff6-f69e1a06dffe/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_850bb0c2-eb84-4503-8ff6-f69e1a06dffe/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product53_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_850bb0c2-eb84-4503-8ff6-f69e1a06dffe/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_850bb0c2-eb84-4503-8ff6-f69e1a06dffe/bin-2019/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c24c1e7ee4ec00cdeabebf427b1fca35e12bb483 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 0.1.23-0cd3be1 [2018-11-28 12:38:38,476 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:38:38,477 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:38:38,484 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:38:38,485 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:38:38,485 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:38:38,486 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:38:38,487 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:38:38,488 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:38:38,489 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:38:38,490 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:38:38,490 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:38:38,490 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:38:38,491 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:38:38,491 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:38:38,492 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:38:38,492 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:38:38,493 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:38:38,495 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:38:38,496 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:38:38,496 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:38:38,497 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:38:38,498 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:38:38,498 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:38:38,498 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:38:38,499 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:38:38,499 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:38:38,499 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:38:38,500 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:38:38,500 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:38:38,500 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:38:38,501 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:38:38,501 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:38:38,501 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:38:38,502 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:38:38,502 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:38:38,502 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_850bb0c2-eb84-4503-8ff6-f69e1a06dffe/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 12:38:38,510 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:38:38,510 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:38:38,511 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 12:38:38,511 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 12:38:38,511 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:38:38,511 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:38:38,511 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:38:38,512 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:38:38,512 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 12:38:38,512 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 12:38:38,512 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 12:38:38,512 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:38:38,512 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 12:38:38,512 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 12:38:38,513 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 12:38:38,513 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 12:38:38,513 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 12:38:38,513 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:38:38,513 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 12:38:38,513 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:38:38,514 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:38:38,514 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 12:38:38,514 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 12:38:38,514 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:38:38,514 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:38:38,514 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 12:38:38,514 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 12:38:38,514 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 12:38:38,515 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 12:38:38,515 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 12:38:38,515 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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_850bb0c2-eb84-4503-8ff6-f69e1a06dffe/bin-2019/uautomizer 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 -> Automizer 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 -> c24c1e7ee4ec00cdeabebf427b1fca35e12bb483 [2018-11-28 12:38:38,543 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:38:38,555 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:38:38,558 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:38:38,559 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:38:38,559 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:38:38,560 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_850bb0c2-eb84-4503-8ff6-f69e1a06dffe/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product53_false-unreach-call_false-termination.cil.c [2018-11-28 12:38:38,600 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_850bb0c2-eb84-4503-8ff6-f69e1a06dffe/bin-2019/uautomizer/data/af1347a1a/0cc8ac80e47f49f8b3bdcda4d73a1f35/FLAGfd828d989 [2018-11-28 12:38:39,020 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:38:39,021 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_850bb0c2-eb84-4503-8ff6-f69e1a06dffe/sv-benchmarks/c/product-lines/minepump_spec1_product53_false-unreach-call_false-termination.cil.c [2018-11-28 12:38:39,027 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_850bb0c2-eb84-4503-8ff6-f69e1a06dffe/bin-2019/uautomizer/data/af1347a1a/0cc8ac80e47f49f8b3bdcda4d73a1f35/FLAGfd828d989 [2018-11-28 12:38:39,041 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_850bb0c2-eb84-4503-8ff6-f69e1a06dffe/bin-2019/uautomizer/data/af1347a1a/0cc8ac80e47f49f8b3bdcda4d73a1f35 [2018-11-28 12:38:39,042 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:38:39,043 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 12:38:39,044 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:38:39,044 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:38:39,047 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:38:39,048 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:38:39" (1/1) ... [2018-11-28 12:38:39,050 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55e2325 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:38:39, skipping insertion in model container [2018-11-28 12:38:39,050 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:38:39" (1/1) ... [2018-11-28 12:38:39,055 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:38:39,081 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:38:39,256 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:38:39,308 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:38:39,363 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:38:39,380 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:38:39,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:38:39 WrapperNode [2018-11-28 12:38:39,380 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:38:39,380 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 12:38:39,380 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 12:38:39,381 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 12:38:39,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:38:39" (1/1) ... [2018-11-28 12:38:39,399 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:38:39" (1/1) ... [2018-11-28 12:38:39,406 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 12:38:39,407 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:38:39,407 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:38:39,407 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:38:39,414 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:38:39" (1/1) ... [2018-11-28 12:38:39,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:38:39" (1/1) ... [2018-11-28 12:38:39,416 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:38:39" (1/1) ... [2018-11-28 12:38:39,417 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:38:39" (1/1) ... [2018-11-28 12:38:39,424 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:38:39" (1/1) ... [2018-11-28 12:38:39,429 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:38:39" (1/1) ... [2018-11-28 12:38:39,430 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:38:39" (1/1) ... [2018-11-28 12:38:39,433 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:38:39,434 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:38:39,434 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:38:39,434 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:38:39,435 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:38:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_850bb0c2-eb84-4503-8ff6-f69e1a06dffe/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:38:39,475 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-11-28 12:38:39,475 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-11-28 12:38:39,475 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 12:38:39,475 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 12:38:39,475 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-11-28 12:38:39,476 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-11-28 12:38:39,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 12:38:39,476 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-11-28 12:38:39,476 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-11-28 12:38:39,476 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-11-28 12:38:39,476 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-11-28 12:38:39,476 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-11-28 12:38:39,476 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-11-28 12:38:39,476 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-11-28 12:38:39,477 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-11-28 12:38:39,477 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-11-28 12:38:39,477 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-11-28 12:38:39,477 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-11-28 12:38:39,477 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-11-28 12:38:39,477 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-11-28 12:38:39,477 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-11-28 12:38:39,477 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-11-28 12:38:39,478 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-11-28 12:38:39,478 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-11-28 12:38:39,478 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-11-28 12:38:39,478 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-11-28 12:38:39,478 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-11-28 12:38:39,478 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-11-28 12:38:39,478 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-11-28 12:38:39,478 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-11-28 12:38:39,478 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-11-28 12:38:39,479 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-11-28 12:38:39,479 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-11-28 12:38:39,479 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-11-28 12:38:39,479 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-11-28 12:38:39,479 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-11-28 12:38:39,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-11-28 12:38:39,479 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2018-11-28 12:38:39,479 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2018-11-28 12:38:39,479 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-11-28 12:38:39,479 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-11-28 12:38:39,480 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-11-28 12:38:39,480 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-11-28 12:38:39,480 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-11-28 12:38:39,480 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-11-28 12:38:39,480 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-11-28 12:38:39,480 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-11-28 12:38:39,480 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-11-28 12:38:39,480 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-11-28 12:38:39,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-28 12:38:39,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 12:38:39,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 12:38:39,481 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-11-28 12:38:39,481 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-11-28 12:38:39,481 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-11-28 12:38:39,481 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-11-28 12:38:39,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:38:39,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:38:39,481 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2018-11-28 12:38:39,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2018-11-28 12:38:39,943 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:38:39,943 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-28 12:38:39,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:38:39 BoogieIcfgContainer [2018-11-28 12:38:39,944 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:38:39,944 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 12:38:39,944 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 12:38:39,947 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 12:38:39,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:38:39" (1/3) ... [2018-11-28 12:38:39,948 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4485f34e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:38:39, skipping insertion in model container [2018-11-28 12:38:39,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:38:39" (2/3) ... [2018-11-28 12:38:39,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4485f34e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:38:39, skipping insertion in model container [2018-11-28 12:38:39,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:38:39" (3/3) ... [2018-11-28 12:38:39,950 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product53_false-unreach-call_false-termination.cil.c [2018-11-28 12:38:39,958 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 12:38:39,964 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 12:38:39,974 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 12:38:39,996 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:38:39,997 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 12:38:39,997 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 12:38:39,997 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 12:38:39,997 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:38:39,997 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:38:39,997 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 12:38:39,997 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:38:39,997 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 12:38:40,016 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states. [2018-11-28 12:38:40,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-28 12:38:40,024 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:38:40,025 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:38:40,027 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:38:40,032 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:38:40,033 INFO L82 PathProgramCache]: Analyzing trace with hash -1573325124, now seen corresponding path program 1 times [2018-11-28 12:38:40,034 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:38:40,035 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:38:40,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:38:40,073 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:38:40,073 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:38:40,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:38:40,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:38:40,228 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:38:40,228 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 12:38:40,231 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 12:38:40,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 12:38:40,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 12:38:40,242 INFO L87 Difference]: Start difference. First operand 156 states. Second operand 2 states. [2018-11-28 12:38:40,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:38:40,267 INFO L93 Difference]: Finished difference Result 286 states and 357 transitions. [2018-11-28 12:38:40,267 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 12:38:40,268 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-11-28 12:38:40,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:38:40,276 INFO L225 Difference]: With dead ends: 286 [2018-11-28 12:38:40,276 INFO L226 Difference]: Without dead ends: 143 [2018-11-28 12:38:40,279 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 12:38:40,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2018-11-28 12:38:40,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2018-11-28 12:38:40,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2018-11-28 12:38:40,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 170 transitions. [2018-11-28 12:38:40,314 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 170 transitions. Word has length 46 [2018-11-28 12:38:40,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:38:40,315 INFO L480 AbstractCegarLoop]: Abstraction has 143 states and 170 transitions. [2018-11-28 12:38:40,315 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 12:38:40,315 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 170 transitions. [2018-11-28 12:38:40,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-11-28 12:38:40,317 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:38:40,317 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:38:40,318 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:38:40,318 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:38:40,319 INFO L82 PathProgramCache]: Analyzing trace with hash 656576115, now seen corresponding path program 1 times [2018-11-28 12:38:40,319 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:38:40,319 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:38:40,320 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:38:40,320 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:38:40,320 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:38:40,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:38:40,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:38:40,414 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:38:40,414 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 12:38:40,415 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:38:40,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:38:40,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:38:40,416 INFO L87 Difference]: Start difference. First operand 143 states and 170 transitions. Second operand 3 states. [2018-11-28 12:38:40,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:38:40,435 INFO L93 Difference]: Finished difference Result 235 states and 279 transitions. [2018-11-28 12:38:40,435 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:38:40,435 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-11-28 12:38:40,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:38:40,437 INFO L225 Difference]: With dead ends: 235 [2018-11-28 12:38:40,437 INFO L226 Difference]: Without dead ends: 134 [2018-11-28 12:38:40,439 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:38:40,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2018-11-28 12:38:40,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2018-11-28 12:38:40,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2018-11-28 12:38:40,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 158 transitions. [2018-11-28 12:38:40,451 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 158 transitions. Word has length 47 [2018-11-28 12:38:40,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:38:40,451 INFO L480 AbstractCegarLoop]: Abstraction has 134 states and 158 transitions. [2018-11-28 12:38:40,452 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:38:40,452 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 158 transitions. [2018-11-28 12:38:40,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-11-28 12:38:40,453 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:38:40,453 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:38:40,453 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:38:40,454 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:38:40,454 INFO L82 PathProgramCache]: Analyzing trace with hash 779463730, now seen corresponding path program 1 times [2018-11-28 12:38:40,454 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:38:40,454 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:38:40,455 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:38:40,455 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:38:40,455 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:38:40,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:38:40,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:38:40,553 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:38:40,553 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 12:38:40,554 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 12:38:40,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 12:38:40,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-28 12:38:40,554 INFO L87 Difference]: Start difference. First operand 134 states and 158 transitions. Second operand 7 states. [2018-11-28 12:38:40,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:38:40,765 INFO L93 Difference]: Finished difference Result 244 states and 293 transitions. [2018-11-28 12:38:40,765 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 12:38:40,766 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2018-11-28 12:38:40,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:38:40,767 INFO L225 Difference]: With dead ends: 244 [2018-11-28 12:38:40,767 INFO L226 Difference]: Without dead ends: 134 [2018-11-28 12:38:40,768 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-28 12:38:40,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2018-11-28 12:38:40,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2018-11-28 12:38:40,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2018-11-28 12:38:40,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 157 transitions. [2018-11-28 12:38:40,780 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 157 transitions. Word has length 51 [2018-11-28 12:38:40,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:38:40,780 INFO L480 AbstractCegarLoop]: Abstraction has 134 states and 157 transitions. [2018-11-28 12:38:40,780 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 12:38:40,780 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 157 transitions. [2018-11-28 12:38:40,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-11-28 12:38:40,782 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:38:40,782 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:38:40,783 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:38:40,783 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:38:40,783 INFO L82 PathProgramCache]: Analyzing trace with hash -1483960229, now seen corresponding path program 1 times [2018-11-28 12:38:40,783 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:38:40,783 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:38:40,784 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:38:40,784 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:38:40,784 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:38:40,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:38:40,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:38:40,867 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:38:40,867 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 12:38:40,867 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 12:38:40,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 12:38:40,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 12:38:40,868 INFO L87 Difference]: Start difference. First operand 134 states and 157 transitions. Second operand 5 states. [2018-11-28 12:38:41,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:38:41,167 INFO L93 Difference]: Finished difference Result 346 states and 421 transitions. [2018-11-28 12:38:41,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 12:38:41,168 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 69 [2018-11-28 12:38:41,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:38:41,170 INFO L225 Difference]: With dead ends: 346 [2018-11-28 12:38:41,171 INFO L226 Difference]: Without dead ends: 236 [2018-11-28 12:38:41,172 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-28 12:38:41,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2018-11-28 12:38:41,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 218. [2018-11-28 12:38:41,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2018-11-28 12:38:41,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 248 transitions. [2018-11-28 12:38:41,195 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 248 transitions. Word has length 69 [2018-11-28 12:38:41,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:38:41,195 INFO L480 AbstractCegarLoop]: Abstraction has 218 states and 248 transitions. [2018-11-28 12:38:41,195 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 12:38:41,196 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 248 transitions. [2018-11-28 12:38:41,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-11-28 12:38:41,198 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:38:41,198 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:38:41,198 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:38:41,198 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:38:41,199 INFO L82 PathProgramCache]: Analyzing trace with hash -618876534, now seen corresponding path program 1 times [2018-11-28 12:38:41,199 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:38:41,199 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:38:41,200 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:38:41,200 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:38:41,200 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:38:41,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:38:41,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:38:41,284 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:38:41,284 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 12:38:41,284 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 12:38:41,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 12:38:41,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 12:38:41,285 INFO L87 Difference]: Start difference. First operand 218 states and 248 transitions. Second operand 6 states. [2018-11-28 12:38:41,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:38:41,395 INFO L93 Difference]: Finished difference Result 591 states and 694 transitions. [2018-11-28 12:38:41,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 12:38:41,396 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 83 [2018-11-28 12:38:41,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:38:41,399 INFO L225 Difference]: With dead ends: 591 [2018-11-28 12:38:41,399 INFO L226 Difference]: Without dead ends: 397 [2018-11-28 12:38:41,400 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-28 12:38:41,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2018-11-28 12:38:41,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 391. [2018-11-28 12:38:41,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 391 states. [2018-11-28 12:38:41,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 446 transitions. [2018-11-28 12:38:41,429 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 446 transitions. Word has length 83 [2018-11-28 12:38:41,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:38:41,429 INFO L480 AbstractCegarLoop]: Abstraction has 391 states and 446 transitions. [2018-11-28 12:38:41,429 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 12:38:41,430 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 446 transitions. [2018-11-28 12:38:41,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-11-28 12:38:41,431 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:38:41,431 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] [2018-11-28 12:38:41,431 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:38:41,431 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:38:41,431 INFO L82 PathProgramCache]: Analyzing trace with hash -765360338, now seen corresponding path program 1 times [2018-11-28 12:38:41,432 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:38:41,432 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:38:41,432 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:38:41,432 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:38:41,433 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:38:41,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:38:41,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:38:41,508 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:38:41,508 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 12:38:41,508 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 12:38:41,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 12:38:41,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 12:38:41,509 INFO L87 Difference]: Start difference. First operand 391 states and 446 transitions. Second operand 7 states. [2018-11-28 12:38:41,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:38:41,839 INFO L93 Difference]: Finished difference Result 424 states and 496 transitions. [2018-11-28 12:38:41,840 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-28 12:38:41,840 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 87 [2018-11-28 12:38:41,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:38:41,842 INFO L225 Difference]: With dead ends: 424 [2018-11-28 12:38:41,843 INFO L226 Difference]: Without dead ends: 421 [2018-11-28 12:38:41,843 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-11-28 12:38:41,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2018-11-28 12:38:41,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 391. [2018-11-28 12:38:41,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 391 states. [2018-11-28 12:38:41,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 445 transitions. [2018-11-28 12:38:41,865 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 445 transitions. Word has length 87 [2018-11-28 12:38:41,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:38:41,865 INFO L480 AbstractCegarLoop]: Abstraction has 391 states and 445 transitions. [2018-11-28 12:38:41,865 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 12:38:41,865 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 445 transitions. [2018-11-28 12:38:41,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-11-28 12:38:41,866 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:38:41,867 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] [2018-11-28 12:38:41,867 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:38:41,867 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:38:41,867 INFO L82 PathProgramCache]: Analyzing trace with hash 2023673667, now seen corresponding path program 1 times [2018-11-28 12:38:41,867 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:38:41,867 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:38:41,868 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:38:41,868 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:38:41,868 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:38:41,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:38:41,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:38:41,933 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:38:41,934 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 12:38:41,934 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 12:38:41,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 12:38:41,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 12:38:41,934 INFO L87 Difference]: Start difference. First operand 391 states and 445 transitions. Second operand 6 states. [2018-11-28 12:38:41,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:38:41,961 INFO L93 Difference]: Finished difference Result 768 states and 888 transitions. [2018-11-28 12:38:41,961 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 12:38:41,961 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 88 [2018-11-28 12:38:41,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:38:41,963 INFO L225 Difference]: With dead ends: 768 [2018-11-28 12:38:41,963 INFO L226 Difference]: Without dead ends: 401 [2018-11-28 12:38:41,964 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-28 12:38:41,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2018-11-28 12:38:41,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 401. [2018-11-28 12:38:41,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 401 states. [2018-11-28 12:38:41,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 455 transitions. [2018-11-28 12:38:41,981 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 455 transitions. Word has length 88 [2018-11-28 12:38:41,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:38:41,982 INFO L480 AbstractCegarLoop]: Abstraction has 401 states and 455 transitions. [2018-11-28 12:38:41,982 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 12:38:41,982 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 455 transitions. [2018-11-28 12:38:41,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-11-28 12:38:41,983 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:38:41,983 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] [2018-11-28 12:38:41,984 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:38:41,984 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:38:41,984 INFO L82 PathProgramCache]: Analyzing trace with hash -1996534015, now seen corresponding path program 1 times [2018-11-28 12:38:41,984 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:38:41,984 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:38:41,984 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:38:41,985 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:38:41,985 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:38:41,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:38:42,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:38:42,060 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:38:42,060 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-28 12:38:42,060 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 12:38:42,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 12:38:42,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-28 12:38:42,060 INFO L87 Difference]: Start difference. First operand 401 states and 455 transitions. Second operand 8 states. [2018-11-28 12:38:42,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:38:42,086 INFO L93 Difference]: Finished difference Result 792 states and 924 transitions. [2018-11-28 12:38:42,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 12:38:42,086 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 88 [2018-11-28 12:38:42,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:38:42,088 INFO L225 Difference]: With dead ends: 792 [2018-11-28 12:38:42,088 INFO L226 Difference]: Without dead ends: 415 [2018-11-28 12:38:42,089 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-28 12:38:42,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2018-11-28 12:38:42,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 409. [2018-11-28 12:38:42,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 409 states. [2018-11-28 12:38:42,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 463 transitions. [2018-11-28 12:38:42,103 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 463 transitions. Word has length 88 [2018-11-28 12:38:42,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:38:42,104 INFO L480 AbstractCegarLoop]: Abstraction has 409 states and 463 transitions. [2018-11-28 12:38:42,104 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 12:38:42,104 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 463 transitions. [2018-11-28 12:38:42,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-11-28 12:38:42,105 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:38:42,105 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] [2018-11-28 12:38:42,105 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:38:42,106 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:38:42,106 INFO L82 PathProgramCache]: Analyzing trace with hash -46233760, now seen corresponding path program 1 times [2018-11-28 12:38:42,106 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:38:42,106 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:38:42,106 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:38:42,107 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:38:42,107 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:38:42,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:38:42,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:38:42,179 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:38:42,179 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 12:38:42,180 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 12:38:42,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 12:38:42,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 12:38:42,180 INFO L87 Difference]: Start difference. First operand 409 states and 463 transitions. Second operand 4 states. [2018-11-28 12:38:42,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:38:42,300 INFO L93 Difference]: Finished difference Result 1241 states and 1482 transitions. [2018-11-28 12:38:42,302 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 12:38:42,302 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 88 [2018-11-28 12:38:42,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:38:42,305 INFO L225 Difference]: With dead ends: 1241 [2018-11-28 12:38:42,305 INFO L226 Difference]: Without dead ends: 856 [2018-11-28 12:38:42,306 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 12:38:42,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2018-11-28 12:38:42,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 543. [2018-11-28 12:38:42,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 543 states. [2018-11-28 12:38:42,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 610 transitions. [2018-11-28 12:38:42,332 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 610 transitions. Word has length 88 [2018-11-28 12:38:42,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:38:42,332 INFO L480 AbstractCegarLoop]: Abstraction has 543 states and 610 transitions. [2018-11-28 12:38:42,332 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 12:38:42,333 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 610 transitions. [2018-11-28 12:38:42,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-11-28 12:38:42,334 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:38:42,334 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] [2018-11-28 12:38:42,334 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:38:42,335 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:38:42,335 INFO L82 PathProgramCache]: Analyzing trace with hash -2145661734, now seen corresponding path program 1 times [2018-11-28 12:38:42,335 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:38:42,335 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:38:42,335 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:38:42,336 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:38:42,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:38:42,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:38:42,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:38:42,422 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 12:38:42,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:38:42 BoogieIcfgContainer [2018-11-28 12:38:42,508 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 12:38:42,508 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:38:42,508 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:38:42,508 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:38:42,508 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:38:39" (3/4) ... [2018-11-28 12:38:42,510 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-28 12:38:42,592 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_850bb0c2-eb84-4503-8ff6-f69e1a06dffe/bin-2019/uautomizer/witness.graphml [2018-11-28 12:38:42,593 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:38:42,594 INFO L168 Benchmark]: Toolchain (without parser) took 3550.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 180.4 MB). Free memory was 951.3 MB in the beginning and 1.0 GB in the end (delta: -73.1 MB). Peak memory consumption was 107.2 MB. Max. memory is 11.5 GB. [2018-11-28 12:38:42,595 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 976.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:38:42,595 INFO L168 Benchmark]: CACSL2BoogieTranslator took 336.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -159.7 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. [2018-11-28 12:38:42,595 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.17 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:38:42,595 INFO L168 Benchmark]: Boogie Preprocessor took 26.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-28 12:38:42,595 INFO L168 Benchmark]: RCFGBuilder took 510.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 47.9 MB). Peak memory consumption was 47.9 MB. Max. memory is 11.5 GB. [2018-11-28 12:38:42,595 INFO L168 Benchmark]: TraceAbstraction took 2563.31 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 58.7 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 60.0 MB. Max. memory is 11.5 GB. [2018-11-28 12:38:42,596 INFO L168 Benchmark]: Witness Printer took 84.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 32.0 MB). Peak memory consumption was 32.0 MB. Max. memory is 11.5 GB. [2018-11-28 12:38:42,597 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 976.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 336.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -159.7 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.17 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 510.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 47.9 MB). Peak memory consumption was 47.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2563.31 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 58.7 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 60.0 MB. Max. memory is 11.5 GB. * Witness Printer took 84.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 32.0 MB). Peak memory consumption was 32.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 73]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L247] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L444] int cleanupTimeShifts = 4; [L554] int pumpRunning = 0; [L555] int systemActive = 1; [L878] int waterLevel = 1; [L879] int methaneLevelCritical = 0; [L525] int retValue_acc ; [L526] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L530] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L531] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L532] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L868] int retValue_acc ; [L871] retValue_acc = 1 [L872] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L532] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L532] tmp = valid_product() [L534] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L536] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L537] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L516] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L778] int splverifierCounter ; [L779] int tmp ; [L780] int tmp___0 ; [L781] int tmp___1 ; [L782] int tmp___2 ; [L785] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L787] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L789] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L795] tmp = __VERIFIER_nondet_int() [L797] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L799] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L896] COND TRUE waterLevel < 2 [L897] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L799] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L805] tmp___0 = __VERIFIER_nondet_int() [L807] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L809] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L908] COND FALSE !(\read(methaneLevelCritical)) [L911] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L809] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L815] tmp___2 = __VERIFIER_nondet_int() [L817] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \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] [L830] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L561] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L568] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L570] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L642] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L645] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L660] CALL processEnvironment__wrappee__lowWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L616] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L619] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L634] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L590] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L593] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L595] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L739] int retValue_acc ; [L740] int tmp ; [L741] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L745] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L958] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L961] COND FALSE !(waterLevel < 2) [L965] retValue_acc = 0 [L966] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L745] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L745] tmp = isHighWaterSensorDry() [L747] COND FALSE !(\read(tmp)) [L750] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L752] retValue_acc = tmp___0 [L753] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \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] [L595] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L595] tmp = isHighWaterLevel() [L597] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L599] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L670] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L599] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L634] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L660] RET processEnvironment__wrappee__lowWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L570] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L576] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L44] int tmp ; [L45] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L49] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L917] int retValue_acc ; [L920] retValue_acc = methaneLevelCritical [L921] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L49] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L49] tmp = isMethaneLevelCritical() [L51] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L53] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L694] int retValue_acc ; [L697] retValue_acc = pumpRunning [L698] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L53] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L53] tmp___0 = isPumpRunning() [L55] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L57] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L73] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 29 procedures, 156 locations, 1 error locations. UNSAFE Result, 2.5s OverallTime, 10 OverallIterations, 1 TraceHistogramMax, 1.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1549 SDtfs, 859 SDslu, 3252 SDs, 0 SdLazy, 1080 SolverSat, 245 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 93 GetRequests, 45 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=543occurred in iteration=9, 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: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 373 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 739 NumberOfCodeBlocks, 739 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 638 ConstructedInterpolants, 0 QuantifiedInterpolants, 83040 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...