./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product43_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_92749588-acef-47c3-9a00-73056cff81c8/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_92749588-acef-47c3-9a00-73056cff81c8/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_92749588-acef-47c3-9a00-73056cff81c8/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_92749588-acef-47c3-9a00-73056cff81c8/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product43_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_92749588-acef-47c3-9a00-73056cff81c8/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_92749588-acef-47c3-9a00-73056cff81c8/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 d3ef47dc64404f2fae365adb4fa9379fd10f9c50 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 08:20:20,437 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 08:20:20,438 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 08:20:20,444 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 08:20:20,444 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 08:20:20,444 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 08:20:20,445 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 08:20:20,446 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 08:20:20,447 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 08:20:20,447 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 08:20:20,448 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 08:20:20,448 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 08:20:20,448 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 08:20:20,449 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 08:20:20,449 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 08:20:20,450 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 08:20:20,450 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 08:20:20,451 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 08:20:20,452 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 08:20:20,453 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 08:20:20,454 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 08:20:20,454 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 08:20:20,456 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 08:20:20,456 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 08:20:20,456 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 08:20:20,456 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 08:20:20,457 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 08:20:20,457 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 08:20:20,458 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 08:20:20,459 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 08:20:20,459 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 08:20:20,459 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 08:20:20,459 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 08:20:20,459 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 08:20:20,460 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 08:20:20,460 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 08:20:20,461 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_92749588-acef-47c3-9a00-73056cff81c8/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-02 08:20:20,468 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 08:20:20,468 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 08:20:20,469 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 08:20:20,469 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 08:20:20,469 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 08:20:20,469 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 08:20:20,469 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 08:20:20,469 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 08:20:20,469 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 08:20:20,469 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 08:20:20,470 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 08:20:20,470 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 08:20:20,470 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 08:20:20,470 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 08:20:20,470 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 08:20:20,470 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 08:20:20,470 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 08:20:20,470 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 08:20:20,470 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 08:20:20,470 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 08:20:20,471 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 08:20:20,471 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 08:20:20,471 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 08:20:20,471 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 08:20:20,471 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 08:20:20,471 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 08:20:20,471 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 08:20:20,471 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-02 08:20:20,471 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 08:20:20,471 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 08:20:20,471 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_92749588-acef-47c3-9a00-73056cff81c8/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 -> d3ef47dc64404f2fae365adb4fa9379fd10f9c50 [2018-12-02 08:20:20,489 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 08:20:20,499 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 08:20:20,501 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 08:20:20,502 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 08:20:20,503 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 08:20:20,503 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_92749588-acef-47c3-9a00-73056cff81c8/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product43_false-unreach-call_false-termination.cil.c [2018-12-02 08:20:20,543 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_92749588-acef-47c3-9a00-73056cff81c8/bin-2019/uautomizer/data/3a0e61202/f00eef096706495990d08136c90f2410/FLAG3fbdfb3b7 [2018-12-02 08:20:20,988 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 08:20:20,988 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_92749588-acef-47c3-9a00-73056cff81c8/sv-benchmarks/c/product-lines/minepump_spec2_product43_false-unreach-call_false-termination.cil.c [2018-12-02 08:20:20,994 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_92749588-acef-47c3-9a00-73056cff81c8/bin-2019/uautomizer/data/3a0e61202/f00eef096706495990d08136c90f2410/FLAG3fbdfb3b7 [2018-12-02 08:20:21,002 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_92749588-acef-47c3-9a00-73056cff81c8/bin-2019/uautomizer/data/3a0e61202/f00eef096706495990d08136c90f2410 [2018-12-02 08:20:21,004 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 08:20:21,005 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 08:20:21,005 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 08:20:21,005 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 08:20:21,007 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 08:20:21,008 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:20:21" (1/1) ... [2018-12-02 08:20:21,009 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 02.12 08:20:21, skipping insertion in model container [2018-12-02 08:20:21,010 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:20:21" (1/1) ... [2018-12-02 08:20:21,014 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 08:20:21,033 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 08:20:21,178 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 08:20:21,185 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 08:20:21,257 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 08:20:21,271 INFO L195 MainTranslator]: Completed translation [2018-12-02 08:20:21,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:20:21 WrapperNode [2018-12-02 08:20:21,272 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 08:20:21,272 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 08:20:21,272 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 08:20:21,272 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 08:20:21,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:20:21" (1/1) ... [2018-12-02 08:20:21,286 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:20:21" (1/1) ... [2018-12-02 08:20:21,292 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 08:20:21,292 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 08:20:21,292 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 08:20:21,292 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 08:20:21,298 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:20:21" (1/1) ... [2018-12-02 08:20:21,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:20:21" (1/1) ... [2018-12-02 08:20:21,300 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:20:21" (1/1) ... [2018-12-02 08:20:21,300 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:20:21" (1/1) ... [2018-12-02 08:20:21,306 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:20:21" (1/1) ... [2018-12-02 08:20:21,310 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:20:21" (1/1) ... [2018-12-02 08:20:21,311 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:20:21" (1/1) ... [2018-12-02 08:20:21,313 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 08:20:21,313 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 08:20:21,313 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 08:20:21,313 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 08:20:21,314 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:20:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_92749588-acef-47c3-9a00-73056cff81c8/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 [2018-12-02 08:20:21,345 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-02 08:20:21,345 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-02 08:20:21,346 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 08:20:21,346 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 08:20:21,346 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2018-12-02 08:20:21,346 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2018-12-02 08:20:21,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 08:20:21,346 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-02 08:20:21,346 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-02 08:20:21,346 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-02 08:20:21,346 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-02 08:20:21,347 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-02 08:20:21,347 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-02 08:20:21,347 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-02 08:20:21,347 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-02 08:20:21,347 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-02 08:20:21,347 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-02 08:20:21,347 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2018-12-02 08:20:21,347 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2018-12-02 08:20:21,347 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2018-12-02 08:20:21,348 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2018-12-02 08:20:21,348 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-02 08:20:21,348 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-02 08:20:21,348 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-02 08:20:21,348 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-02 08:20:21,348 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-02 08:20:21,348 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-02 08:20:21,348 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-02 08:20:21,348 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-02 08:20:21,348 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-02 08:20:21,349 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-02 08:20:21,349 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-02 08:20:21,349 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-02 08:20:21,349 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-02 08:20:21,349 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-02 08:20:21,349 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-02 08:20:21,349 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-02 08:20:21,349 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-02 08:20:21,349 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-02 08:20:21,349 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-02 08:20:21,350 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-02 08:20:21,350 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-02 08:20:21,350 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-02 08:20:21,350 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-12-02 08:20:21,350 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-12-02 08:20:21,350 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-02 08:20:21,350 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-02 08:20:21,350 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2018-12-02 08:20:21,350 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2018-12-02 08:20:21,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-02 08:20:21,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 08:20:21,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 08:20:21,351 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-02 08:20:21,351 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-02 08:20:21,351 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-02 08:20:21,351 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-02 08:20:21,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 08:20:21,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 08:20:21,655 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 08:20:21,655 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-02 08:20:21,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:20:21 BoogieIcfgContainer [2018-12-02 08:20:21,655 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 08:20:21,656 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 08:20:21,656 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 08:20:21,658 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 08:20:21,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:20:21" (1/3) ... [2018-12-02 08:20:21,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6862878 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:20:21, skipping insertion in model container [2018-12-02 08:20:21,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:20:21" (2/3) ... [2018-12-02 08:20:21,659 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6862878 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:20:21, skipping insertion in model container [2018-12-02 08:20:21,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:20:21" (3/3) ... [2018-12-02 08:20:21,660 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product43_false-unreach-call_false-termination.cil.c [2018-12-02 08:20:21,666 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 08:20:21,671 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 08:20:21,680 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 08:20:21,697 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 08:20:21,698 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 08:20:21,698 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 08:20:21,698 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 08:20:21,698 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 08:20:21,698 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 08:20:21,698 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 08:20:21,698 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 08:20:21,698 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 08:20:21,710 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states. [2018-12-02 08:20:21,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-12-02 08:20:21,715 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:20:21,716 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] [2018-12-02 08:20:21,717 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 08:20:21,720 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:20:21,721 INFO L82 PathProgramCache]: Analyzing trace with hash -2080916765, now seen corresponding path program 1 times [2018-12-02 08:20:21,722 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 08:20:21,722 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 08:20:21,750 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:20:21,751 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:20:21,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:20:21,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:20:21,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 08:20:21,861 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 08:20:21,861 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 08:20:21,864 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-02 08:20:21,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 08:20:21,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 08:20:21,873 INFO L87 Difference]: Start difference. First operand 144 states. Second operand 2 states. [2018-12-02 08:20:21,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 08:20:21,895 INFO L93 Difference]: Finished difference Result 258 states and 319 transitions. [2018-12-02 08:20:21,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 08:20:21,896 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2018-12-02 08:20:21,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 08:20:21,903 INFO L225 Difference]: With dead ends: 258 [2018-12-02 08:20:21,903 INFO L226 Difference]: Without dead ends: 131 [2018-12-02 08:20:21,905 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 08:20:21,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2018-12-02 08:20:21,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2018-12-02 08:20:21,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2018-12-02 08:20:21,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 153 transitions. [2018-12-02 08:20:21,936 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 153 transitions. Word has length 51 [2018-12-02 08:20:21,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 08:20:21,937 INFO L480 AbstractCegarLoop]: Abstraction has 131 states and 153 transitions. [2018-12-02 08:20:21,937 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-02 08:20:21,937 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 153 transitions. [2018-12-02 08:20:21,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-12-02 08:20:21,938 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:20:21,938 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 08:20:21,939 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 08:20:21,939 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:20:21,939 INFO L82 PathProgramCache]: Analyzing trace with hash 636669844, now seen corresponding path program 1 times [2018-12-02 08:20:21,939 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 08:20:21,939 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 08:20:21,940 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:20:21,940 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:20:21,940 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:20:21,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:20:22,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 08:20:22,010 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 08:20:22,010 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 08:20:22,011 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 08:20:22,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 08:20:22,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 08:20:22,012 INFO L87 Difference]: Start difference. First operand 131 states and 153 transitions. Second operand 3 states. [2018-12-02 08:20:22,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 08:20:22,029 INFO L93 Difference]: Finished difference Result 198 states and 231 transitions. [2018-12-02 08:20:22,030 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 08:20:22,030 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2018-12-02 08:20:22,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 08:20:22,031 INFO L225 Difference]: With dead ends: 198 [2018-12-02 08:20:22,032 INFO L226 Difference]: Without dead ends: 122 [2018-12-02 08:20:22,032 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 08:20:22,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2018-12-02 08:20:22,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2018-12-02 08:20:22,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2018-12-02 08:20:22,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 141 transitions. [2018-12-02 08:20:22,042 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 141 transitions. Word has length 52 [2018-12-02 08:20:22,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 08:20:22,043 INFO L480 AbstractCegarLoop]: Abstraction has 122 states and 141 transitions. [2018-12-02 08:20:22,043 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 08:20:22,043 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 141 transitions. [2018-12-02 08:20:22,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-12-02 08:20:22,044 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:20:22,045 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] [2018-12-02 08:20:22,045 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 08:20:22,045 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:20:22,045 INFO L82 PathProgramCache]: Analyzing trace with hash -982739446, now seen corresponding path program 1 times [2018-12-02 08:20:22,045 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 08:20:22,045 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 08:20:22,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:20:22,046 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:20:22,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:20:22,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:20:22,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 08:20:22,145 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 08:20:22,146 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 08:20:22,146 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 08:20:22,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 08:20:22,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-02 08:20:22,147 INFO L87 Difference]: Start difference. First operand 122 states and 141 transitions. Second operand 7 states. [2018-12-02 08:20:22,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 08:20:22,412 INFO L93 Difference]: Finished difference Result 361 states and 435 transitions. [2018-12-02 08:20:22,412 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 08:20:22,413 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2018-12-02 08:20:22,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 08:20:22,415 INFO L225 Difference]: With dead ends: 361 [2018-12-02 08:20:22,416 INFO L226 Difference]: Without dead ends: 267 [2018-12-02 08:20:22,417 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-02 08:20:22,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2018-12-02 08:20:22,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 247. [2018-12-02 08:20:22,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2018-12-02 08:20:22,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 296 transitions. [2018-12-02 08:20:22,441 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 296 transitions. Word has length 56 [2018-12-02 08:20:22,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 08:20:22,441 INFO L480 AbstractCegarLoop]: Abstraction has 247 states and 296 transitions. [2018-12-02 08:20:22,441 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 08:20:22,441 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 296 transitions. [2018-12-02 08:20:22,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-12-02 08:20:22,443 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:20:22,443 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] [2018-12-02 08:20:22,444 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 08:20:22,444 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:20:22,444 INFO L82 PathProgramCache]: Analyzing trace with hash -748912949, now seen corresponding path program 1 times [2018-12-02 08:20:22,444 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 08:20:22,444 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 08:20:22,445 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:20:22,445 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:20:22,445 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:20:22,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:20:22,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 08:20:22,520 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 08:20:22,520 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 08:20:22,520 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 08:20:22,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 08:20:22,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-02 08:20:22,521 INFO L87 Difference]: Start difference. First operand 247 states and 296 transitions. Second operand 6 states. [2018-12-02 08:20:22,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 08:20:22,657 INFO L93 Difference]: Finished difference Result 667 states and 822 transitions. [2018-12-02 08:20:22,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 08:20:22,657 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 62 [2018-12-02 08:20:22,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 08:20:22,660 INFO L225 Difference]: With dead ends: 667 [2018-12-02 08:20:22,661 INFO L226 Difference]: Without dead ends: 448 [2018-12-02 08:20:22,662 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-12-02 08:20:22,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2018-12-02 08:20:22,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 442. [2018-12-02 08:20:22,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2018-12-02 08:20:22,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 532 transitions. [2018-12-02 08:20:22,694 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 532 transitions. Word has length 62 [2018-12-02 08:20:22,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 08:20:22,694 INFO L480 AbstractCegarLoop]: Abstraction has 442 states and 532 transitions. [2018-12-02 08:20:22,694 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 08:20:22,695 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 532 transitions. [2018-12-02 08:20:22,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-12-02 08:20:22,697 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:20:22,698 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] [2018-12-02 08:20:22,698 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 08:20:22,698 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:20:22,698 INFO L82 PathProgramCache]: Analyzing trace with hash -88762617, now seen corresponding path program 1 times [2018-12-02 08:20:22,698 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 08:20:22,698 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 08:20:22,699 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:20:22,699 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:20:22,699 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:20:22,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:20:22,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 08:20:22,784 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 08:20:22,784 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 08:20:22,785 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 08:20:22,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 08:20:22,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-02 08:20:22,785 INFO L87 Difference]: Start difference. First operand 442 states and 532 transitions. Second operand 7 states. [2018-12-02 08:20:23,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 08:20:23,148 INFO L93 Difference]: Finished difference Result 1137 states and 1460 transitions. [2018-12-02 08:20:23,148 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-02 08:20:23,148 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 66 [2018-12-02 08:20:23,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 08:20:23,151 INFO L225 Difference]: With dead ends: 1137 [2018-12-02 08:20:23,151 INFO L226 Difference]: Without dead ends: 723 [2018-12-02 08:20:23,152 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-12-02 08:20:23,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2018-12-02 08:20:23,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 639. [2018-12-02 08:20:23,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 639 states. [2018-12-02 08:20:23,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 769 transitions. [2018-12-02 08:20:23,190 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 769 transitions. Word has length 66 [2018-12-02 08:20:23,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 08:20:23,191 INFO L480 AbstractCegarLoop]: Abstraction has 639 states and 769 transitions. [2018-12-02 08:20:23,191 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 08:20:23,191 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 769 transitions. [2018-12-02 08:20:23,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2018-12-02 08:20:23,193 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:20:23,193 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 08:20:23,193 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 08:20:23,193 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:20:23,193 INFO L82 PathProgramCache]: Analyzing trace with hash 716633639, now seen corresponding path program 1 times [2018-12-02 08:20:23,193 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 08:20:23,194 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 08:20:23,194 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:20:23,194 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:20:23,194 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:20:23,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:20:23,273 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-02 08:20:23,273 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 08:20:23,273 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 08:20:23,274 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 08:20:23,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 08:20:23,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-02 08:20:23,274 INFO L87 Difference]: Start difference. First operand 639 states and 769 transitions. Second operand 6 states. [2018-12-02 08:20:23,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 08:20:23,315 INFO L93 Difference]: Finished difference Result 1278 states and 1582 transitions. [2018-12-02 08:20:23,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 08:20:23,315 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 98 [2018-12-02 08:20:23,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 08:20:23,317 INFO L225 Difference]: With dead ends: 1278 [2018-12-02 08:20:23,318 INFO L226 Difference]: Without dead ends: 667 [2018-12-02 08:20:23,319 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-02 08:20:23,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2018-12-02 08:20:23,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 659. [2018-12-02 08:20:23,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 659 states. [2018-12-02 08:20:23,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 789 transitions. [2018-12-02 08:20:23,344 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 789 transitions. Word has length 98 [2018-12-02 08:20:23,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 08:20:23,345 INFO L480 AbstractCegarLoop]: Abstraction has 659 states and 789 transitions. [2018-12-02 08:20:23,345 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 08:20:23,345 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 789 transitions. [2018-12-02 08:20:23,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2018-12-02 08:20:23,347 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:20:23,347 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 08:20:23,347 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 08:20:23,347 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:20:23,347 INFO L82 PathProgramCache]: Analyzing trace with hash -1332754203, now seen corresponding path program 1 times [2018-12-02 08:20:23,348 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 08:20:23,348 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 08:20:23,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:20:23,349 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:20:23,349 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:20:23,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:20:23,429 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-02 08:20:23,429 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 08:20:23,429 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-02 08:20:23,429 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-02 08:20:23,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-02 08:20:23,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-02 08:20:23,430 INFO L87 Difference]: Start difference. First operand 659 states and 789 transitions. Second operand 8 states. [2018-12-02 08:20:23,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 08:20:23,473 INFO L93 Difference]: Finished difference Result 1318 states and 1622 transitions. [2018-12-02 08:20:23,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 08:20:23,473 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 98 [2018-12-02 08:20:23,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 08:20:23,476 INFO L225 Difference]: With dead ends: 1318 [2018-12-02 08:20:23,476 INFO L226 Difference]: Without dead ends: 687 [2018-12-02 08:20:23,478 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-02 08:20:23,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2018-12-02 08:20:23,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 675. [2018-12-02 08:20:23,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 675 states. [2018-12-02 08:20:23,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 805 transitions. [2018-12-02 08:20:23,498 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 805 transitions. Word has length 98 [2018-12-02 08:20:23,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 08:20:23,498 INFO L480 AbstractCegarLoop]: Abstraction has 675 states and 805 transitions. [2018-12-02 08:20:23,498 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-02 08:20:23,498 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 805 transitions. [2018-12-02 08:20:23,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2018-12-02 08:20:23,499 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:20:23,499 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 08:20:23,500 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 08:20:23,500 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:20:23,500 INFO L82 PathProgramCache]: Analyzing trace with hash -363173180, now seen corresponding path program 1 times [2018-12-02 08:20:23,500 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 08:20:23,500 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 08:20:23,500 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:20:23,500 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:20:23,500 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:20:23,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:20:23,545 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-02 08:20:23,545 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 08:20:23,545 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-02 08:20:23,546 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-02 08:20:23,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-02 08:20:23,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-02 08:20:23,546 INFO L87 Difference]: Start difference. First operand 675 states and 805 transitions. Second operand 4 states. [2018-12-02 08:20:23,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 08:20:23,690 INFO L93 Difference]: Finished difference Result 2137 states and 2676 transitions. [2018-12-02 08:20:23,690 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-02 08:20:23,690 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 98 [2018-12-02 08:20:23,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 08:20:23,696 INFO L225 Difference]: With dead ends: 2137 [2018-12-02 08:20:23,696 INFO L226 Difference]: Without dead ends: 1490 [2018-12-02 08:20:23,698 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-02 08:20:23,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1490 states. [2018-12-02 08:20:23,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1490 to 1459. [2018-12-02 08:20:23,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1459 states. [2018-12-02 08:20:23,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1459 states to 1459 states and 1779 transitions. [2018-12-02 08:20:23,767 INFO L78 Accepts]: Start accepts. Automaton has 1459 states and 1779 transitions. Word has length 98 [2018-12-02 08:20:23,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 08:20:23,767 INFO L480 AbstractCegarLoop]: Abstraction has 1459 states and 1779 transitions. [2018-12-02 08:20:23,767 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-02 08:20:23,767 INFO L276 IsEmpty]: Start isEmpty. Operand 1459 states and 1779 transitions. [2018-12-02 08:20:23,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-12-02 08:20:23,769 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:20:23,769 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 08:20:23,769 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 08:20:23,769 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:20:23,769 INFO L82 PathProgramCache]: Analyzing trace with hash 1778110846, now seen corresponding path program 1 times [2018-12-02 08:20:23,769 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 08:20:23,769 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 08:20:23,770 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:20:23,770 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:20:23,770 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:20:23,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:20:23,860 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-02 08:20:23,860 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 08:20:23,861 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_92749588-acef-47c3-9a00-73056cff81c8/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 08:20:23,869 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:20:23,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:20:23,952 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 08:20:24,070 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 08:20:24,096 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-02 08:20:24,096 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [13] total 19 [2018-12-02 08:20:24,096 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-12-02 08:20:24,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-12-02 08:20:24,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2018-12-02 08:20:24,097 INFO L87 Difference]: Start difference. First operand 1459 states and 1779 transitions. Second operand 19 states. [2018-12-02 08:20:24,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 08:20:24,671 INFO L93 Difference]: Finished difference Result 2864 states and 3528 transitions. [2018-12-02 08:20:24,671 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-12-02 08:20:24,671 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 102 [2018-12-02 08:20:24,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 08:20:24,675 INFO L225 Difference]: With dead ends: 2864 [2018-12-02 08:20:24,675 INFO L226 Difference]: Without dead ends: 1433 [2018-12-02 08:20:24,677 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 97 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=115, Invalid=877, Unknown=0, NotChecked=0, Total=992 [2018-12-02 08:20:24,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1433 states. [2018-12-02 08:20:24,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1433 to 1433. [2018-12-02 08:20:24,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1433 states. [2018-12-02 08:20:24,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1433 states to 1433 states and 1707 transitions. [2018-12-02 08:20:24,719 INFO L78 Accepts]: Start accepts. Automaton has 1433 states and 1707 transitions. Word has length 102 [2018-12-02 08:20:24,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 08:20:24,719 INFO L480 AbstractCegarLoop]: Abstraction has 1433 states and 1707 transitions. [2018-12-02 08:20:24,719 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-12-02 08:20:24,720 INFO L276 IsEmpty]: Start isEmpty. Operand 1433 states and 1707 transitions. [2018-12-02 08:20:24,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-12-02 08:20:24,722 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:20:24,722 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 08:20:24,722 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 08:20:24,722 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:20:24,722 INFO L82 PathProgramCache]: Analyzing trace with hash -57178701, now seen corresponding path program 1 times [2018-12-02 08:20:24,723 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 08:20:24,723 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 08:20:24,723 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:20:24,723 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:20:24,723 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:20:24,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:20:24,774 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-12-02 08:20:24,774 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 08:20:24,774 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_92749588-acef-47c3-9a00-73056cff81c8/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 08:20:24,782 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:20:24,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:20:24,856 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 08:20:24,879 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-02 08:20:24,895 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-02 08:20:24,895 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2018-12-02 08:20:24,896 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 08:20:24,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 08:20:24,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-12-02 08:20:24,896 INFO L87 Difference]: Start difference. First operand 1433 states and 1707 transitions. Second operand 6 states. [2018-12-02 08:20:25,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 08:20:25,403 INFO L93 Difference]: Finished difference Result 3309 states and 4187 transitions. [2018-12-02 08:20:25,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-02 08:20:25,404 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 141 [2018-12-02 08:20:25,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 08:20:25,413 INFO L225 Difference]: With dead ends: 3309 [2018-12-02 08:20:25,413 INFO L226 Difference]: Without dead ends: 2200 [2018-12-02 08:20:25,417 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2018-12-02 08:20:25,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2200 states. [2018-12-02 08:20:25,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2200 to 1923. [2018-12-02 08:20:25,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1923 states. [2018-12-02 08:20:25,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1923 states to 1923 states and 2329 transitions. [2018-12-02 08:20:25,499 INFO L78 Accepts]: Start accepts. Automaton has 1923 states and 2329 transitions. Word has length 141 [2018-12-02 08:20:25,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 08:20:25,499 INFO L480 AbstractCegarLoop]: Abstraction has 1923 states and 2329 transitions. [2018-12-02 08:20:25,499 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 08:20:25,500 INFO L276 IsEmpty]: Start isEmpty. Operand 1923 states and 2329 transitions. [2018-12-02 08:20:25,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-12-02 08:20:25,502 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:20:25,502 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 08:20:25,502 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 08:20:25,503 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:20:25,503 INFO L82 PathProgramCache]: Analyzing trace with hash -73522569, now seen corresponding path program 1 times [2018-12-02 08:20:25,503 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 08:20:25,503 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 08:20:25,503 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:20:25,503 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:20:25,504 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:20:25,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:20:25,559 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-12-02 08:20:25,559 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 08:20:25,559 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 08:20:25,559 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 08:20:25,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 08:20:25,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 08:20:25,560 INFO L87 Difference]: Start difference. First operand 1923 states and 2329 transitions. Second operand 3 states. [2018-12-02 08:20:25,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 08:20:25,655 INFO L93 Difference]: Finished difference Result 2992 states and 3731 transitions. [2018-12-02 08:20:25,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 08:20:25,655 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 137 [2018-12-02 08:20:25,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 08:20:25,667 INFO L225 Difference]: With dead ends: 2992 [2018-12-02 08:20:25,667 INFO L226 Difference]: Without dead ends: 2989 [2018-12-02 08:20:25,669 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 08:20:25,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2989 states. [2018-12-02 08:20:25,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2989 to 2422. [2018-12-02 08:20:25,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2422 states. [2018-12-02 08:20:25,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2422 states to 2422 states and 3001 transitions. [2018-12-02 08:20:25,783 INFO L78 Accepts]: Start accepts. Automaton has 2422 states and 3001 transitions. Word has length 137 [2018-12-02 08:20:25,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 08:20:25,784 INFO L480 AbstractCegarLoop]: Abstraction has 2422 states and 3001 transitions. [2018-12-02 08:20:25,784 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 08:20:25,784 INFO L276 IsEmpty]: Start isEmpty. Operand 2422 states and 3001 transitions. [2018-12-02 08:20:25,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2018-12-02 08:20:25,788 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:20:25,788 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 08:20:25,788 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 08:20:25,788 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:20:25,788 INFO L82 PathProgramCache]: Analyzing trace with hash 745797277, now seen corresponding path program 1 times [2018-12-02 08:20:25,788 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 08:20:25,788 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 08:20:25,789 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:20:25,789 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:20:25,789 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:20:25,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:20:25,867 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 40 proven. 20 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2018-12-02 08:20:25,867 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 08:20:25,867 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_92749588-acef-47c3-9a00-73056cff81c8/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 08:20:25,873 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:20:25,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:20:25,962 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 08:20:25,999 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 65 proven. 28 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-02 08:20:26,015 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-02 08:20:26,015 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2018-12-02 08:20:26,015 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-02 08:20:26,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-02 08:20:26,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2018-12-02 08:20:26,016 INFO L87 Difference]: Start difference. First operand 2422 states and 3001 transitions. Second operand 9 states. [2018-12-02 08:20:26,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 08:20:26,696 INFO L93 Difference]: Finished difference Result 6369 states and 8514 transitions. [2018-12-02 08:20:26,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-02 08:20:26,696 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 179 [2018-12-02 08:20:26,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 08:20:26,708 INFO L225 Difference]: With dead ends: 6369 [2018-12-02 08:20:26,709 INFO L226 Difference]: Without dead ends: 4283 [2018-12-02 08:20:26,713 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 186 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2018-12-02 08:20:26,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4283 states. [2018-12-02 08:20:26,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4283 to 3425. [2018-12-02 08:20:26,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3425 states. [2018-12-02 08:20:26,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3425 states to 3425 states and 4220 transitions. [2018-12-02 08:20:26,869 INFO L78 Accepts]: Start accepts. Automaton has 3425 states and 4220 transitions. Word has length 179 [2018-12-02 08:20:26,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 08:20:26,869 INFO L480 AbstractCegarLoop]: Abstraction has 3425 states and 4220 transitions. [2018-12-02 08:20:26,869 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-02 08:20:26,869 INFO L276 IsEmpty]: Start isEmpty. Operand 3425 states and 4220 transitions. [2018-12-02 08:20:26,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2018-12-02 08:20:26,874 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:20:26,874 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 08:20:26,874 INFO L423 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 08:20:26,874 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:20:26,874 INFO L82 PathProgramCache]: Analyzing trace with hash -640406117, now seen corresponding path program 1 times [2018-12-02 08:20:26,874 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 08:20:26,874 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 08:20:26,875 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:20:26,875 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:20:26,875 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:20:26,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 08:20:26,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 08:20:26,988 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-02 08:20:27,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 08:20:27 BoogieIcfgContainer [2018-12-02 08:20:27,084 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 08:20:27,084 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 08:20:27,084 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 08:20:27,085 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 08:20:27,085 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:20:21" (3/4) ... [2018-12-02 08:20:27,087 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-02 08:20:27,183 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_92749588-acef-47c3-9a00-73056cff81c8/bin-2019/uautomizer/witness.graphml [2018-12-02 08:20:27,183 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 08:20:27,184 INFO L168 Benchmark]: Toolchain (without parser) took 6179.70 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 409.5 MB). Free memory was 956.0 MB in the beginning and 1.2 GB in the end (delta: -222.9 MB). Peak memory consumption was 186.6 MB. Max. memory is 11.5 GB. [2018-12-02 08:20:27,185 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 08:20:27,185 INFO L168 Benchmark]: CACSL2BoogieTranslator took 266.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 956.0 MB in the beginning and 1.1 GB in the end (delta: -168.0 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. [2018-12-02 08:20:27,185 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.71 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. [2018-12-02 08:20:27,185 INFO L168 Benchmark]: Boogie Preprocessor took 20.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-12-02 08:20:27,185 INFO L168 Benchmark]: RCFGBuilder took 342.26 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: 52.0 MB). Peak memory consumption was 52.0 MB. Max. memory is 11.5 GB. [2018-12-02 08:20:27,186 INFO L168 Benchmark]: TraceAbstraction took 5428.20 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 273.2 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -175.2 MB). Peak memory consumption was 98.0 MB. Max. memory is 11.5 GB. [2018-12-02 08:20:27,186 INFO L168 Benchmark]: Witness Printer took 99.01 ms. Allocated memory is still 1.4 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 64.9 MB). Peak memory consumption was 64.9 MB. Max. memory is 11.5 GB. [2018-12-02 08:20:27,187 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 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 266.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 956.0 MB in the beginning and 1.1 GB in the end (delta: -168.0 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.71 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 20.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 342.26 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: 52.0 MB). Peak memory consumption was 52.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5428.20 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 273.2 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -175.2 MB). Peak memory consumption was 98.0 MB. Max. memory is 11.5 GB. * Witness Printer took 99.01 ms. Allocated memory is still 1.4 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 64.9 MB). Peak memory consumption was 64.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 946]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L310] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L507] int cleanupTimeShifts = 4; [L648] int methAndRunningLastTime ; [L757] int pumpRunning = 0; [L758] int systemActive = 1; [L588] int retValue_acc ; [L589] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L593] FCALL select_helpers() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L594] FCALL select_features() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L595] CALL, EXPR valid_product() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L637] int retValue_acc ; [L640] retValue_acc = 1 [L641] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L595] RET, EXPR valid_product() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L595] tmp = valid_product() [L597] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L599] FCALL setup() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L600] CALL runTest() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L578] CALL __utac_acc__Specification2_spec__1() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L653] methAndRunningLastTime = 0 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L578] RET __utac_acc__Specification2_spec__1() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L579] CALL test() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L689] int splverifierCounter ; [L690] int tmp ; [L691] int tmp___0 ; [L692] int tmp___1 ; [L693] int tmp___2 ; [L696] splverifierCounter = 0 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L698] COND TRUE 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L700] COND TRUE splverifierCounter < 4 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L706] tmp = __VERIFIER_nondet_int() [L708] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L710] CALL waterRise() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L65] COND TRUE waterLevel < 2 [L66] waterLevel = waterLevel + 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L710] RET waterRise() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L716] tmp___0 = __VERIFIER_nondet_int() [L718] COND FALSE !(\read(tmp___0)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L726] tmp___2 = __VERIFIER_nondet_int() [L728] COND TRUE \read(tmp___2) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L743] CALL timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L764] COND FALSE !(\read(pumpRunning)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L771] COND TRUE \read(systemActive) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L773] CALL processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L793] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L796] COND TRUE ! pumpRunning VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L798] CALL, EXPR isHighWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L908] int retValue_acc ; [L909] int tmp ; [L910] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L914] CALL, EXPR isHighWaterSensorDry() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L127] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L130] COND FALSE !(waterLevel < 2) [L134] retValue_acc = 0 [L135] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L914] RET, EXPR isHighWaterSensorDry() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L914] tmp = isHighWaterSensorDry() [L916] COND FALSE !(\read(tmp)) [L919] tmp___0 = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L921] retValue_acc = tmp___0 [L922] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L798] RET, EXPR isHighWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L798] tmp = isHighWaterLevel() [L800] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L802] CALL activatePump() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L827] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L831] CALL, EXPR isMethaneAlarm() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L852] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L856] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L856] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L856] retValue_acc = isMethaneLevelCritical() [L858] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L831] RET, EXPR isMethaneAlarm() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L831] tmp = isMethaneAlarm() [L833] COND FALSE !(\read(tmp)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L837] CALL activatePump__wrappee__highWaterSensor() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L821] pumpRunning = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L837] RET activatePump__wrappee__highWaterSensor() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L802] RET activatePump() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L773] RET processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L779] CALL __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L658] int tmp ; [L659] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L663] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=2] [L663] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L663] tmp = isMethaneLevelCritical() [L665] COND FALSE !(\read(tmp)) [L681] methAndRunningLastTime = 0 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L779] RET __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L743] RET timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L698] COND TRUE 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L700] COND TRUE splverifierCounter < 4 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L706] tmp = __VERIFIER_nondet_int() [L708] COND FALSE !(\read(tmp)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L716] tmp___0 = __VERIFIER_nondet_int() [L718] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L720] CALL changeMethaneLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L77] COND FALSE !(\read(methaneLevelCritical)) [L80] methaneLevelCritical = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L720] RET changeMethaneLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L726] tmp___2 = __VERIFIER_nondet_int() [L728] COND TRUE \read(tmp___2) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L743] CALL timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L764] COND TRUE \read(pumpRunning) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L766] CALL lowerWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L53] COND TRUE waterLevel > 0 [L54] waterLevel = waterLevel - 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L766] RET lowerWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L771] COND TRUE \read(systemActive) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L773] CALL processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L793] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L796] COND FALSE !(! pumpRunning) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L811] FCALL processEnvironment__wrappee__base() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L773] RET processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L779] CALL __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L658] int tmp ; [L659] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L663] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L663] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L663] tmp = isMethaneLevelCritical() [L665] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L667] CALL, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L863] int retValue_acc ; [L866] retValue_acc = pumpRunning [L867] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L667] RET, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L667] tmp___0 = isPumpRunning() [L669] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L670] COND FALSE !(\read(methAndRunningLastTime)) [L675] methAndRunningLastTime = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L779] RET __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L743] RET timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=1] [L698] COND TRUE 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=1] [L700] COND TRUE splverifierCounter < 4 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=1] [L706] tmp = __VERIFIER_nondet_int() [L708] COND FALSE !(\read(tmp)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=1] [L716] tmp___0 = __VERIFIER_nondet_int() [L718] COND FALSE !(\read(tmp___0)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L726] tmp___2 = __VERIFIER_nondet_int() [L728] COND TRUE \read(tmp___2) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L743] CALL timeShift() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L764] COND TRUE \read(pumpRunning) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L766] CALL lowerWaterLevel() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L53] COND TRUE waterLevel > 0 [L54] waterLevel = waterLevel - 1 VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L766] RET lowerWaterLevel() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L771] COND TRUE \read(systemActive) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L773] CALL processEnvironment() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L793] int tmp ; VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L796] COND FALSE !(! pumpRunning) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L811] FCALL processEnvironment__wrappee__base() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L773] RET processEnvironment() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L779] CALL __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L658] int tmp ; [L659] int tmp___0 ; VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L663] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L663] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L663] tmp = isMethaneLevelCritical() [L665] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=0] [L667] CALL, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L863] int retValue_acc ; [L866] retValue_acc = pumpRunning [L867] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L667] RET, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=0] [L667] tmp___0 = isPumpRunning() [L669] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=0] [L670] COND TRUE \read(methAndRunningLastTime) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=0] [L672] CALL __automaton_fail() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L946] __VERIFIER_error() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 28 procedures, 144 locations, 1 error locations. UNSAFE Result, 5.3s OverallTime, 13 OverallIterations, 4 TraceHistogramMax, 2.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2117 SDtfs, 1825 SDslu, 5380 SDs, 0 SdLazy, 2851 SolverSat, 699 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 561 GetRequests, 465 SyntacticMatches, 4 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3425occurred in iteration=12, 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: 0.6s AutomataMinimizationTime, 12 MinimizatonAttempts, 1863 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 1741 NumberOfCodeBlocks, 1741 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1547 ConstructedInterpolants, 0 QuantifiedInterpolants, 306195 SizeOfPredicates, 5 NumberOfNonLiveVariables, 2601 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 15 InterpolantComputations, 11 PerfectInterpolantSequences, 259/311 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...