./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product56_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_87f33c20-b538-4cb4-b5e1-84e10621c149/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_87f33c20-b538-4cb4-b5e1-84e10621c149/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_87f33c20-b538-4cb4-b5e1-84e10621c149/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_87f33c20-b538-4cb4-b5e1-84e10621c149/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product56_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_87f33c20-b538-4cb4-b5e1-84e10621c149/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_87f33c20-b538-4cb4-b5e1-84e10621c149/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 3236d89cedc127e9d85364eeaf0ba1493a1eae64 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 14:58:35,769 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 14:58:35,770 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 14:58:35,776 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 14:58:35,776 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 14:58:35,777 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 14:58:35,777 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 14:58:35,778 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 14:58:35,779 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 14:58:35,779 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 14:58:35,780 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 14:58:35,780 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 14:58:35,780 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 14:58:35,781 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 14:58:35,781 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 14:58:35,782 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 14:58:35,782 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 14:58:35,783 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 14:58:35,784 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 14:58:35,785 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 14:58:35,785 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 14:58:35,786 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 14:58:35,787 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 14:58:35,787 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 14:58:35,787 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 14:58:35,788 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 14:58:35,788 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 14:58:35,788 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 14:58:35,789 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 14:58:35,789 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 14:58:35,789 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 14:58:35,790 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 14:58:35,790 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 14:58:35,790 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 14:58:35,790 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 14:58:35,791 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 14:58:35,791 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_87f33c20-b538-4cb4-b5e1-84e10621c149/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-02 14:58:35,798 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 14:58:35,798 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 14:58:35,798 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 14:58:35,799 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 14:58:35,799 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 14:58:35,799 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 14:58:35,799 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 14:58:35,799 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 14:58:35,799 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 14:58:35,799 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 14:58:35,799 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 14:58:35,799 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 14:58:35,800 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 14:58:35,800 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 14:58:35,800 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 14:58:35,800 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 14:58:35,800 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 14:58:35,800 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 14:58:35,800 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 14:58:35,800 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 14:58:35,800 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 14:58:35,800 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 14:58:35,800 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 14:58:35,801 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 14:58:35,801 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 14:58:35,801 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 14:58:35,801 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 14:58:35,801 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-02 14:58:35,801 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 14:58:35,801 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 14:58:35,801 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_87f33c20-b538-4cb4-b5e1-84e10621c149/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 -> 3236d89cedc127e9d85364eeaf0ba1493a1eae64 [2018-12-02 14:58:35,818 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 14:58:35,824 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 14:58:35,826 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 14:58:35,827 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 14:58:35,827 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 14:58:35,828 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_87f33c20-b538-4cb4-b5e1-84e10621c149/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product56_false-unreach-call_false-termination.cil.c [2018-12-02 14:58:35,863 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_87f33c20-b538-4cb4-b5e1-84e10621c149/bin-2019/uautomizer/data/11841a16a/4a0867b2a6d84e1da2d03a2a2685aa70/FLAGa25c5b77d [2018-12-02 14:58:36,279 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 14:58:36,280 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_87f33c20-b538-4cb4-b5e1-84e10621c149/sv-benchmarks/c/product-lines/minepump_spec1_product56_false-unreach-call_false-termination.cil.c [2018-12-02 14:58:36,286 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_87f33c20-b538-4cb4-b5e1-84e10621c149/bin-2019/uautomizer/data/11841a16a/4a0867b2a6d84e1da2d03a2a2685aa70/FLAGa25c5b77d [2018-12-02 14:58:36,294 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_87f33c20-b538-4cb4-b5e1-84e10621c149/bin-2019/uautomizer/data/11841a16a/4a0867b2a6d84e1da2d03a2a2685aa70 [2018-12-02 14:58:36,296 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 14:58:36,297 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 14:58:36,297 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 14:58:36,298 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 14:58:36,300 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 14:58:36,300 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:58:36" (1/1) ... [2018-12-02 14:58:36,302 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2648fef5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:36, skipping insertion in model container [2018-12-02 14:58:36,302 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:58:36" (1/1) ... [2018-12-02 14:58:36,306 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 14:58:36,327 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 14:58:36,485 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 14:58:36,528 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 14:58:36,574 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 14:58:36,594 INFO L195 MainTranslator]: Completed translation [2018-12-02 14:58:36,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:36 WrapperNode [2018-12-02 14:58:36,594 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 14:58:36,595 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 14:58:36,595 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 14:58:36,595 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 14:58:36,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:36" (1/1) ... [2018-12-02 14:58:36,611 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:36" (1/1) ... [2018-12-02 14:58:36,617 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 14:58:36,617 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 14:58:36,617 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 14:58:36,617 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 14:58:36,623 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:36" (1/1) ... [2018-12-02 14:58:36,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:36" (1/1) ... [2018-12-02 14:58:36,626 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:36" (1/1) ... [2018-12-02 14:58:36,626 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:36" (1/1) ... [2018-12-02 14:58:36,634 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:36" (1/1) ... [2018-12-02 14:58:36,638 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:36" (1/1) ... [2018-12-02 14:58:36,640 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:36" (1/1) ... [2018-12-02 14:58:36,642 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 14:58:36,643 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 14:58:36,643 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 14:58:36,643 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 14:58:36,644 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_87f33c20-b538-4cb4-b5e1-84e10621c149/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 14:58:36,678 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-02 14:58:36,679 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-02 14:58:36,679 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 14:58:36,679 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 14:58:36,679 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2018-12-02 14:58:36,679 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2018-12-02 14:58:36,679 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-12-02 14:58:36,679 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-12-02 14:58:36,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 14:58:36,679 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-02 14:58:36,679 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-02 14:58:36,679 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-02 14:58:36,679 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-02 14:58:36,679 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-02 14:58:36,679 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-02 14:58:36,680 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-02 14:58:36,680 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-02 14:58:36,680 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-02 14:58:36,680 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-02 14:58:36,680 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-12-02 14:58:36,680 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-12-02 14:58:36,680 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-02 14:58:36,680 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-02 14:58:36,680 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-02 14:58:36,680 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-02 14:58:36,680 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-02 14:58:36,680 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-02 14:58:36,680 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-02 14:58:36,680 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-02 14:58:36,681 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-02 14:58:36,681 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-02 14:58:36,681 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-02 14:58:36,681 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-02 14:58:36,681 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-12-02 14:58:36,681 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-12-02 14:58:36,681 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2018-12-02 14:58:36,681 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2018-12-02 14:58:36,681 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-02 14:58:36,681 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-02 14:58:36,681 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-02 14:58:36,681 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-02 14:58:36,681 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2018-12-02 14:58:36,681 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2018-12-02 14:58:36,681 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-02 14:58:36,681 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-02 14:58:36,682 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-02 14:58:36,682 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-02 14:58:36,682 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-02 14:58:36,682 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-02 14:58:36,682 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-12-02 14:58:36,682 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-12-02 14:58:36,682 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-02 14:58:36,682 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-02 14:58:36,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-02 14:58:36,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 14:58:36,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 14:58:36,682 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-02 14:58:36,682 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-02 14:58:36,682 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-02 14:58:36,682 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-02 14:58:36,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 14:58:36,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 14:58:36,683 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2018-12-02 14:58:36,683 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2018-12-02 14:58:37,005 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 14:58:37,006 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-02 14:58:37,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:58:37 BoogieIcfgContainer [2018-12-02 14:58:37,006 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 14:58:37,007 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 14:58:37,007 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 14:58:37,009 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 14:58:37,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:58:36" (1/3) ... [2018-12-02 14:58:37,010 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79db9f36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:58:37, skipping insertion in model container [2018-12-02 14:58:37,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:58:36" (2/3) ... [2018-12-02 14:58:37,010 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79db9f36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:58:37, skipping insertion in model container [2018-12-02 14:58:37,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:58:37" (3/3) ... [2018-12-02 14:58:37,012 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product56_false-unreach-call_false-termination.cil.c [2018-12-02 14:58:37,020 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 14:58:37,026 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 14:58:37,037 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 14:58:37,055 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 14:58:37,055 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 14:58:37,056 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 14:58:37,056 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 14:58:37,056 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 14:58:37,056 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 14:58:37,056 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 14:58:37,056 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 14:58:37,056 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 14:58:37,068 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states. [2018-12-02 14:58:37,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-02 14:58:37,073 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 14:58:37,073 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 14:58:37,075 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 14:58:37,078 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:58:37,078 INFO L82 PathProgramCache]: Analyzing trace with hash -1281580374, now seen corresponding path program 1 times [2018-12-02 14:58:37,079 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 14:58:37,079 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 14:58:37,107 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:58:37,108 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:58:37,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:58:37,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:58:37,211 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 14:58:37,213 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 14:58:37,213 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 14:58:37,215 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-02 14:58:37,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 14:58:37,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 14:58:37,225 INFO L87 Difference]: Start difference. First operand 166 states. Second operand 2 states. [2018-12-02 14:58:37,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 14:58:37,249 INFO L93 Difference]: Finished difference Result 306 states and 381 transitions. [2018-12-02 14:58:37,250 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 14:58:37,250 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-02 14:58:37,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 14:58:37,258 INFO L225 Difference]: With dead ends: 306 [2018-12-02 14:58:37,258 INFO L226 Difference]: Without dead ends: 153 [2018-12-02 14:58:37,260 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 14:58:37,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2018-12-02 14:58:37,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2018-12-02 14:58:37,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2018-12-02 14:58:37,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 182 transitions. [2018-12-02 14:58:37,293 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 182 transitions. Word has length 46 [2018-12-02 14:58:37,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 14:58:37,293 INFO L480 AbstractCegarLoop]: Abstraction has 153 states and 182 transitions. [2018-12-02 14:58:37,293 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-02 14:58:37,293 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 182 transitions. [2018-12-02 14:58:37,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-02 14:58:37,295 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 14:58:37,295 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 14:58:37,295 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 14:58:37,295 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:58:37,296 INFO L82 PathProgramCache]: Analyzing trace with hash -1374599222, now seen corresponding path program 1 times [2018-12-02 14:58:37,296 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 14:58:37,296 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 14:58:37,296 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:58:37,296 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:58:37,296 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:58:37,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:58:37,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 14:58:37,340 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 14:58:37,341 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 14:58:37,341 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 14:58:37,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 14:58:37,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 14:58:37,342 INFO L87 Difference]: Start difference. First operand 153 states and 182 transitions. Second operand 3 states. [2018-12-02 14:58:37,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 14:58:37,355 INFO L93 Difference]: Finished difference Result 245 states and 291 transitions. [2018-12-02 14:58:37,356 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 14:58:37,356 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-02 14:58:37,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 14:58:37,357 INFO L225 Difference]: With dead ends: 245 [2018-12-02 14:58:37,357 INFO L226 Difference]: Without dead ends: 144 [2018-12-02 14:58:37,358 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 14:58:37,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2018-12-02 14:58:37,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2018-12-02 14:58:37,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2018-12-02 14:58:37,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 170 transitions. [2018-12-02 14:58:37,367 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 170 transitions. Word has length 47 [2018-12-02 14:58:37,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 14:58:37,367 INFO L480 AbstractCegarLoop]: Abstraction has 144 states and 170 transitions. [2018-12-02 14:58:37,367 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 14:58:37,367 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 170 transitions. [2018-12-02 14:58:37,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-12-02 14:58:37,368 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 14:58:37,368 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 14:58:37,368 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 14:58:37,368 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:58:37,368 INFO L82 PathProgramCache]: Analyzing trace with hash 772566134, now seen corresponding path program 1 times [2018-12-02 14:58:37,368 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 14:58:37,368 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 14:58:37,369 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:58:37,369 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:58:37,369 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:58:37,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:58:37,466 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 14:58:37,466 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 14:58:37,466 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 14:58:37,467 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 14:58:37,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 14:58:37,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-02 14:58:37,467 INFO L87 Difference]: Start difference. First operand 144 states and 170 transitions. Second operand 7 states. [2018-12-02 14:58:37,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 14:58:37,779 INFO L93 Difference]: Finished difference Result 434 states and 530 transitions. [2018-12-02 14:58:37,779 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 14:58:37,780 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2018-12-02 14:58:37,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 14:58:37,782 INFO L225 Difference]: With dead ends: 434 [2018-12-02 14:58:37,782 INFO L226 Difference]: Without dead ends: 314 [2018-12-02 14:58:37,784 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 14:58:37,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2018-12-02 14:58:37,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 302. [2018-12-02 14:58:37,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 302 states. [2018-12-02 14:58:37,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 368 transitions. [2018-12-02 14:58:37,813 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 368 transitions. Word has length 52 [2018-12-02 14:58:37,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 14:58:37,813 INFO L480 AbstractCegarLoop]: Abstraction has 302 states and 368 transitions. [2018-12-02 14:58:37,813 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 14:58:37,813 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 368 transitions. [2018-12-02 14:58:37,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-12-02 14:58:37,814 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 14:58:37,815 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 14:58:37,815 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 14:58:37,815 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:58:37,815 INFO L82 PathProgramCache]: Analyzing trace with hash 437449018, now seen corresponding path program 1 times [2018-12-02 14:58:37,815 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 14:58:37,815 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 14:58:37,816 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:58:37,816 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:58:37,816 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:58:37,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:58:37,875 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 14:58:37,875 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 14:58:37,876 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 14:58:37,876 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 14:58:37,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 14:58:37,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-02 14:58:37,876 INFO L87 Difference]: Start difference. First operand 302 states and 368 transitions. Second operand 6 states. [2018-12-02 14:58:38,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 14:58:38,012 INFO L93 Difference]: Finished difference Result 843 states and 1052 transitions. [2018-12-02 14:58:38,012 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 14:58:38,012 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2018-12-02 14:58:38,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 14:58:38,015 INFO L225 Difference]: With dead ends: 843 [2018-12-02 14:58:38,015 INFO L226 Difference]: Without dead ends: 565 [2018-12-02 14:58:38,016 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 14:58:38,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2018-12-02 14:58:38,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 559. [2018-12-02 14:58:38,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 559 states. [2018-12-02 14:58:38,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 686 transitions. [2018-12-02 14:58:38,041 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 686 transitions. Word has length 57 [2018-12-02 14:58:38,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 14:58:38,042 INFO L480 AbstractCegarLoop]: Abstraction has 559 states and 686 transitions. [2018-12-02 14:58:38,042 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 14:58:38,042 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 686 transitions. [2018-12-02 14:58:38,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-12-02 14:58:38,044 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 14:58:38,044 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 14:58:38,044 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 14:58:38,044 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:58:38,044 INFO L82 PathProgramCache]: Analyzing trace with hash -202619490, now seen corresponding path program 1 times [2018-12-02 14:58:38,044 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 14:58:38,045 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 14:58:38,045 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:58:38,045 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:58:38,045 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:58:38,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:58:38,103 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 14:58:38,104 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 14:58:38,104 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 14:58:38,104 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 14:58:38,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 14:58:38,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-02 14:58:38,105 INFO L87 Difference]: Start difference. First operand 559 states and 686 transitions. Second operand 7 states. [2018-12-02 14:58:38,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 14:58:38,528 INFO L93 Difference]: Finished difference Result 1454 states and 1907 transitions. [2018-12-02 14:58:38,528 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-02 14:58:38,528 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 61 [2018-12-02 14:58:38,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 14:58:38,531 INFO L225 Difference]: With dead ends: 1454 [2018-12-02 14:58:38,531 INFO L226 Difference]: Without dead ends: 919 [2018-12-02 14:58:38,532 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 14:58:38,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2018-12-02 14:58:38,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 821. [2018-12-02 14:58:38,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 821 states. [2018-12-02 14:58:38,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 999 transitions. [2018-12-02 14:58:38,564 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 999 transitions. Word has length 61 [2018-12-02 14:58:38,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 14:58:38,564 INFO L480 AbstractCegarLoop]: Abstraction has 821 states and 999 transitions. [2018-12-02 14:58:38,564 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 14:58:38,564 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 999 transitions. [2018-12-02 14:58:38,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-12-02 14:58:38,566 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 14:58:38,566 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 14:58:38,566 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 14:58:38,566 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:58:38,566 INFO L82 PathProgramCache]: Analyzing trace with hash 440788808, now seen corresponding path program 1 times [2018-12-02 14:58:38,566 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 14:58:38,567 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 14:58:38,567 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:58:38,567 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:58:38,567 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:58:38,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:58:38,616 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 14:58:38,616 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 14:58:38,616 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 14:58:38,617 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 14:58:38,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 14:58:38,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-02 14:58:38,617 INFO L87 Difference]: Start difference. First operand 821 states and 999 transitions. Second operand 6 states. [2018-12-02 14:58:38,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 14:58:38,659 INFO L93 Difference]: Finished difference Result 1638 states and 2032 transitions. [2018-12-02 14:58:38,660 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 14:58:38,660 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 89 [2018-12-02 14:58:38,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 14:58:38,662 INFO L225 Difference]: With dead ends: 1638 [2018-12-02 14:58:38,662 INFO L226 Difference]: Without dead ends: 841 [2018-12-02 14:58:38,663 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 14:58:38,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 841 states. [2018-12-02 14:58:38,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 841 to 841. [2018-12-02 14:58:38,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 841 states. [2018-12-02 14:58:38,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 841 states to 841 states and 1019 transitions. [2018-12-02 14:58:38,690 INFO L78 Accepts]: Start accepts. Automaton has 841 states and 1019 transitions. Word has length 89 [2018-12-02 14:58:38,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 14:58:38,690 INFO L480 AbstractCegarLoop]: Abstraction has 841 states and 1019 transitions. [2018-12-02 14:58:38,690 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 14:58:38,690 INFO L276 IsEmpty]: Start isEmpty. Operand 841 states and 1019 transitions. [2018-12-02 14:58:38,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-12-02 14:58:38,691 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 14:58:38,692 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 14:58:38,692 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 14:58:38,692 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:58:38,692 INFO L82 PathProgramCache]: Analyzing trace with hash 715548422, now seen corresponding path program 1 times [2018-12-02 14:58:38,692 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 14:58:38,692 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 14:58:38,692 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:58:38,693 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:58:38,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:58:38,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:58:38,750 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 14:58:38,750 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 14:58:38,750 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-02 14:58:38,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-02 14:58:38,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-02 14:58:38,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-02 14:58:38,751 INFO L87 Difference]: Start difference. First operand 841 states and 1019 transitions. Second operand 8 states. [2018-12-02 14:58:38,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 14:58:38,786 INFO L93 Difference]: Finished difference Result 1686 states and 2118 transitions. [2018-12-02 14:58:38,786 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 14:58:38,787 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 89 [2018-12-02 14:58:38,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 14:58:38,789 INFO L225 Difference]: With dead ends: 1686 [2018-12-02 14:58:38,789 INFO L226 Difference]: Without dead ends: 869 [2018-12-02 14:58:38,791 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 14:58:38,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 869 states. [2018-12-02 14:58:38,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 869 to 857. [2018-12-02 14:58:38,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 857 states. [2018-12-02 14:58:38,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 1035 transitions. [2018-12-02 14:58:38,816 INFO L78 Accepts]: Start accepts. Automaton has 857 states and 1035 transitions. Word has length 89 [2018-12-02 14:58:38,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 14:58:38,816 INFO L480 AbstractCegarLoop]: Abstraction has 857 states and 1035 transitions. [2018-12-02 14:58:38,816 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-02 14:58:38,816 INFO L276 IsEmpty]: Start isEmpty. Operand 857 states and 1035 transitions. [2018-12-02 14:58:38,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-12-02 14:58:38,817 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 14:58:38,818 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 14:58:38,818 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 14:58:38,818 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:58:38,818 INFO L82 PathProgramCache]: Analyzing trace with hash -1629118619, now seen corresponding path program 1 times [2018-12-02 14:58:38,818 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 14:58:38,818 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 14:58:38,818 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:58:38,819 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:58:38,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:58:38,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:58:38,872 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 14:58:38,872 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 14:58:38,872 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-02 14:58:38,872 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-02 14:58:38,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-02 14:58:38,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-02 14:58:38,873 INFO L87 Difference]: Start difference. First operand 857 states and 1035 transitions. Second operand 4 states. [2018-12-02 14:58:39,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 14:58:39,060 INFO L93 Difference]: Finished difference Result 2779 states and 3518 transitions. [2018-12-02 14:58:39,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-02 14:58:39,061 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 89 [2018-12-02 14:58:39,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 14:58:39,069 INFO L225 Difference]: With dead ends: 2779 [2018-12-02 14:58:39,069 INFO L226 Difference]: Without dead ends: 1946 [2018-12-02 14:58:39,072 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 14:58:39,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1946 states. [2018-12-02 14:58:39,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1946 to 1915. [2018-12-02 14:58:39,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1915 states. [2018-12-02 14:58:39,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1915 states to 1915 states and 2371 transitions. [2018-12-02 14:58:39,155 INFO L78 Accepts]: Start accepts. Automaton has 1915 states and 2371 transitions. Word has length 89 [2018-12-02 14:58:39,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 14:58:39,155 INFO L480 AbstractCegarLoop]: Abstraction has 1915 states and 2371 transitions. [2018-12-02 14:58:39,155 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-02 14:58:39,155 INFO L276 IsEmpty]: Start isEmpty. Operand 1915 states and 2371 transitions. [2018-12-02 14:58:39,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-12-02 14:58:39,157 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 14:58:39,157 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 14:58:39,157 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 14:58:39,157 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:58:39,157 INFO L82 PathProgramCache]: Analyzing trace with hash 1430934315, now seen corresponding path program 1 times [2018-12-02 14:58:39,157 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 14:58:39,158 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 14:58:39,158 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:58:39,158 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:58:39,158 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:58:39,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 14:58:39,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 14:58:39,223 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-02 14:58:39,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:58:39 BoogieIcfgContainer [2018-12-02 14:58:39,291 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 14:58:39,291 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 14:58:39,291 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 14:58:39,291 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 14:58:39,292 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:58:37" (3/4) ... [2018-12-02 14:58:39,293 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-02 14:58:39,372 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_87f33c20-b538-4cb4-b5e1-84e10621c149/bin-2019/uautomizer/witness.graphml [2018-12-02 14:58:39,372 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 14:58:39,373 INFO L168 Benchmark]: Toolchain (without parser) took 3076.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 201.3 MB). Free memory was 950.6 MB in the beginning and 808.7 MB in the end (delta: 141.9 MB). Peak memory consumption was 343.2 MB. Max. memory is 11.5 GB. [2018-12-02 14:58:39,374 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 14:58:39,374 INFO L168 Benchmark]: CACSL2BoogieTranslator took 297.11 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.7 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -144.4 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2018-12-02 14:58:39,374 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.88 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 14:58:39,374 INFO L168 Benchmark]: Boogie Preprocessor took 25.63 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 14:58:39,374 INFO L168 Benchmark]: RCFGBuilder took 363.36 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 55.8 MB). Peak memory consumption was 55.8 MB. Max. memory is 11.5 GB. [2018-12-02 14:58:39,374 INFO L168 Benchmark]: TraceAbstraction took 2284.00 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 89.7 MB). Free memory was 1.0 GB in the beginning and 834.2 MB in the end (delta: 205.0 MB). Peak memory consumption was 294.7 MB. Max. memory is 11.5 GB. [2018-12-02 14:58:39,375 INFO L168 Benchmark]: Witness Printer took 81.41 ms. Allocated memory is still 1.2 GB. Free memory was 834.2 MB in the beginning and 808.7 MB in the end (delta: 25.5 MB). Peak memory consumption was 25.5 MB. Max. memory is 11.5 GB. [2018-12-02 14:58:39,376 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 297.11 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.7 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -144.4 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.88 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.63 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 363.36 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 55.8 MB). Peak memory consumption was 55.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2284.00 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 89.7 MB). Free memory was 1.0 GB in the beginning and 834.2 MB in the end (delta: 205.0 MB). Peak memory consumption was 294.7 MB. Max. memory is 11.5 GB. * Witness Printer took 81.41 ms. Allocated memory is still 1.2 GB. Free memory was 834.2 MB in the beginning and 808.7 MB in the end (delta: 25.5 MB). Peak memory consumption was 25.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 806]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L490] int pumpRunning = 0; [L491] int systemActive = 1; [L811] int cleanupTimeShifts = 4; [L908] int waterLevel = 1; [L909] int methaneLevelCritical = 0; [L884] int retValue_acc ; [L885] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L889] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L890] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L891] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L766] int retValue_acc ; [L769] retValue_acc = 1 [L770] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L891] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L891] tmp = valid_product() [L893] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L895] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L896] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L878] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L413] int splverifierCounter ; [L414] int tmp ; [L415] int tmp___0 ; [L416] int tmp___1 ; [L417] int tmp___2 ; [L420] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L422] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L424] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L430] tmp = __VERIFIER_nondet_int() [L432] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L434] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L926] COND TRUE waterLevel < 2 [L927] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L434] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L440] tmp___0 = __VERIFIER_nondet_int() [L442] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L444] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L938] COND FALSE !(\read(methaneLevelCritical)) [L941] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L444] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L450] tmp___2 = __VERIFIER_nondet_int() [L452] COND FALSE !(\read(tmp___2)) [L458] tmp___1 = __VERIFIER_nondet_int() [L460] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___1=0, tmp___2=0, waterLevel=2] [L469] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L498] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L505] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L507] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L579] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L582] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L597] CALL processEnvironment__wrappee__lowWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L553] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L556] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L571] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L527] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L530] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L532] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L676] int retValue_acc ; [L677] int tmp ; [L678] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L682] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L988] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L991] COND FALSE !(waterLevel < 2) [L995] retValue_acc = 0 [L996] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L682] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L682] tmp = isHighWaterSensorDry() [L684] COND FALSE !(\read(tmp)) [L687] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L689] retValue_acc = tmp___0 [L690] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L532] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L532] tmp = isHighWaterLevel() [L534] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L536] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L607] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L536] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L571] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L597] RET processEnvironment__wrappee__lowWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L507] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L513] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L777] int tmp ; [L778] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L782] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L947] int retValue_acc ; [L950] retValue_acc = methaneLevelCritical [L951] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L782] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L782] tmp = isMethaneLevelCritical() [L784] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L786] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L631] int retValue_acc ; [L634] retValue_acc = pumpRunning [L635] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L786] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L786] tmp___0 = isPumpRunning() [L788] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L790] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L806] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 31 procedures, 166 locations, 1 error locations. UNSAFE Result, 2.2s OverallTime, 9 OverallIterations, 1 TraceHistogramMax, 1.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1561 SDtfs, 933 SDslu, 3657 SDs, 0 SdLazy, 1036 SolverSat, 194 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1915occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 159 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 623 NumberOfCodeBlocks, 623 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 522 ConstructedInterpolants, 0 QuantifiedInterpolants, 60344 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...