./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product42_false-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_59ff8a06-c787-475b-9924-6b69aff7e5df/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_59ff8a06-c787-475b-9924-6b69aff7e5df/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_59ff8a06-c787-475b-9924-6b69aff7e5df/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_59ff8a06-c787-475b-9924-6b69aff7e5df/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product42_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_59ff8a06-c787-475b-9924-6b69aff7e5df/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_59ff8a06-c787-475b-9924-6b69aff7e5df/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 0f3978068d3e88eb2e8d08ee6f85f2ba09bbc729 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 12:46:28,962 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:46:28,963 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:46:28,971 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:46:28,971 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:46:28,972 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:46:28,973 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:46:28,974 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:46:28,975 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:46:28,975 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:46:28,976 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:46:28,976 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:46:28,977 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:46:28,977 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:46:28,978 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:46:28,979 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:46:28,979 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:46:28,980 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:46:28,982 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:46:28,983 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:46:28,984 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:46:28,984 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:46:28,986 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:46:28,986 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:46:28,986 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:46:28,987 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:46:28,988 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:46:28,988 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:46:28,989 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:46:28,990 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:46:28,990 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:46:28,991 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:46:28,991 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:46:28,991 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:46:28,992 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:46:28,992 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:46:28,993 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_59ff8a06-c787-475b-9924-6b69aff7e5df/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 12:46:29,002 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:46:29,002 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:46:29,002 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 12:46:29,002 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 12:46:29,003 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:46:29,003 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:46:29,003 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:46:29,003 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:46:29,003 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 12:46:29,004 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 12:46:29,004 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 12:46:29,004 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:46:29,004 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 12:46:29,004 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 12:46:29,004 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 12:46:29,004 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 12:46:29,005 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 12:46:29,005 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:46:29,005 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 12:46:29,005 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:46:29,005 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:46:29,005 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 12:46:29,005 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 12:46:29,006 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:46:29,006 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:46:29,006 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 12:46:29,006 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 12:46:29,006 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 12:46:29,006 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 12:46:29,006 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 12:46:29,006 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_59ff8a06-c787-475b-9924-6b69aff7e5df/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 -> 0f3978068d3e88eb2e8d08ee6f85f2ba09bbc729 [2018-11-28 12:46:29,029 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:46:29,036 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:46:29,038 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:46:29,039 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:46:29,039 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:46:29,039 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_59ff8a06-c787-475b-9924-6b69aff7e5df/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product42_false-unreach-call_false-termination.cil.c [2018-11-28 12:46:29,074 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_59ff8a06-c787-475b-9924-6b69aff7e5df/bin-2019/uautomizer/data/af89d265c/d76b9235d64d4e968b8986995dc3a7ac/FLAGbc63d1e54 [2018-11-28 12:46:29,427 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:46:29,428 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_59ff8a06-c787-475b-9924-6b69aff7e5df/sv-benchmarks/c/product-lines/minepump_spec1_product42_false-unreach-call_false-termination.cil.c [2018-11-28 12:46:29,436 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_59ff8a06-c787-475b-9924-6b69aff7e5df/bin-2019/uautomizer/data/af89d265c/d76b9235d64d4e968b8986995dc3a7ac/FLAGbc63d1e54 [2018-11-28 12:46:29,448 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_59ff8a06-c787-475b-9924-6b69aff7e5df/bin-2019/uautomizer/data/af89d265c/d76b9235d64d4e968b8986995dc3a7ac [2018-11-28 12:46:29,450 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:46:29,451 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 12:46:29,452 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:46:29,452 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:46:29,454 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:46:29,455 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:46:29" (1/1) ... [2018-11-28 12:46:29,457 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75eb1ba8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:46:29, skipping insertion in model container [2018-11-28 12:46:29,457 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:46:29" (1/1) ... [2018-11-28 12:46:29,463 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:46:29,490 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:46:29,664 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:46:29,674 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:46:29,767 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:46:29,782 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:46:29,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:46:29 WrapperNode [2018-11-28 12:46:29,783 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:46:29,783 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 12:46:29,783 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 12:46:29,783 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 12:46:29,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:46:29" (1/1) ... [2018-11-28 12:46:29,797 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:46:29" (1/1) ... [2018-11-28 12:46:29,802 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 12:46:29,802 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:46:29,802 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:46:29,802 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:46:29,808 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:46:29" (1/1) ... [2018-11-28 12:46:29,808 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:46:29" (1/1) ... [2018-11-28 12:46:29,810 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:46:29" (1/1) ... [2018-11-28 12:46:29,810 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:46:29" (1/1) ... [2018-11-28 12:46:29,818 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:46:29" (1/1) ... [2018-11-28 12:46:29,822 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:46:29" (1/1) ... [2018-11-28 12:46:29,823 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:46:29" (1/1) ... [2018-11-28 12:46:29,825 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:46:29,825 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:46:29,825 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:46:29,825 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:46:29,826 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:46:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_59ff8a06-c787-475b-9924-6b69aff7e5df/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:46:29,860 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-11-28 12:46:29,860 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-11-28 12:46:29,860 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 12:46:29,860 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 12:46:29,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 12:46:29,860 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-11-28 12:46:29,860 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-11-28 12:46:29,861 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-11-28 12:46:29,861 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-11-28 12:46:29,861 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-11-28 12:46:29,861 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-11-28 12:46:29,861 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-11-28 12:46:29,861 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-11-28 12:46:29,861 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-11-28 12:46:29,861 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-11-28 12:46:29,861 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-11-28 12:46:29,862 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-11-28 12:46:29,862 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-11-28 12:46:29,862 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-11-28 12:46:29,862 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-11-28 12:46:29,862 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-11-28 12:46:29,862 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-11-28 12:46:29,862 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-11-28 12:46:29,862 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-11-28 12:46:29,863 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-11-28 12:46:29,863 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-11-28 12:46:29,863 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-11-28 12:46:29,863 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2018-11-28 12:46:29,863 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2018-11-28 12:46:29,863 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-11-28 12:46:29,863 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-11-28 12:46:29,863 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-11-28 12:46:29,863 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-11-28 12:46:29,864 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-11-28 12:46:29,864 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-11-28 12:46:29,864 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-11-28 12:46:29,864 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-11-28 12:46:29,864 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-11-28 12:46:29,864 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-11-28 12:46:29,864 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-11-28 12:46:29,864 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-11-28 12:46:29,864 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2018-11-28 12:46:29,865 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2018-11-28 12:46:29,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-28 12:46:29,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 12:46:29,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 12:46:29,865 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-11-28 12:46:29,865 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-11-28 12:46:29,865 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-11-28 12:46:29,865 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-11-28 12:46:29,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:46:29,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:46:29,866 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2018-11-28 12:46:29,866 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2018-11-28 12:46:30,232 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:46:30,233 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-28 12:46:30,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:46:30 BoogieIcfgContainer [2018-11-28 12:46:30,233 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:46:30,234 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 12:46:30,234 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 12:46:30,236 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 12:46:30,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:46:29" (1/3) ... [2018-11-28 12:46:30,238 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@641f8a9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:46:30, skipping insertion in model container [2018-11-28 12:46:30,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:46:29" (2/3) ... [2018-11-28 12:46:30,238 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@641f8a9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:46:30, skipping insertion in model container [2018-11-28 12:46:30,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:46:30" (3/3) ... [2018-11-28 12:46:30,240 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product42_false-unreach-call_false-termination.cil.c [2018-11-28 12:46:30,248 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 12:46:30,254 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 12:46:30,266 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 12:46:30,286 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:46:30,286 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 12:46:30,286 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 12:46:30,286 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 12:46:30,286 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:46:30,286 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:46:30,286 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 12:46:30,286 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:46:30,287 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 12:46:30,302 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states. [2018-11-28 12:46:30,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-28 12:46:30,308 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:46:30,309 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:46:30,311 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:46:30,315 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:46:30,315 INFO L82 PathProgramCache]: Analyzing trace with hash -1563751973, now seen corresponding path program 1 times [2018-11-28 12:46:30,317 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:46:30,317 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:46:30,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:46:30,354 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:46:30,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:46:30,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:46:30,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:46:30,497 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:46:30,497 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 12:46:30,500 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 12:46:30,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 12:46:30,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 12:46:30,514 INFO L87 Difference]: Start difference. First operand 134 states. Second operand 2 states. [2018-11-28 12:46:30,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:46:30,536 INFO L93 Difference]: Finished difference Result 242 states and 299 transitions. [2018-11-28 12:46:30,536 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 12:46:30,537 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-11-28 12:46:30,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:46:30,545 INFO L225 Difference]: With dead ends: 242 [2018-11-28 12:46:30,545 INFO L226 Difference]: Without dead ends: 121 [2018-11-28 12:46:30,547 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 12:46:30,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2018-11-28 12:46:30,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2018-11-28 12:46:30,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2018-11-28 12:46:30,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 141 transitions. [2018-11-28 12:46:30,577 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 141 transitions. Word has length 46 [2018-11-28 12:46:30,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:46:30,577 INFO L480 AbstractCegarLoop]: Abstraction has 121 states and 141 transitions. [2018-11-28 12:46:30,578 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 12:46:30,578 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 141 transitions. [2018-11-28 12:46:30,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-11-28 12:46:30,580 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:46:30,581 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:46:30,581 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:46:30,582 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:46:30,582 INFO L82 PathProgramCache]: Analyzing trace with hash 785919818, now seen corresponding path program 1 times [2018-11-28 12:46:30,582 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:46:30,582 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:46:30,583 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:46:30,583 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:46:30,583 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:46:30,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:46:30,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:46:30,664 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:46:30,664 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 12:46:30,665 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:46:30,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:46:30,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:46:30,666 INFO L87 Difference]: Start difference. First operand 121 states and 141 transitions. Second operand 3 states. [2018-11-28 12:46:30,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:46:30,682 INFO L93 Difference]: Finished difference Result 187 states and 217 transitions. [2018-11-28 12:46:30,683 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:46:30,683 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-11-28 12:46:30,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:46:30,684 INFO L225 Difference]: With dead ends: 187 [2018-11-28 12:46:30,684 INFO L226 Difference]: Without dead ends: 112 [2018-11-28 12:46:30,685 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:46:30,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2018-11-28 12:46:30,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2018-11-28 12:46:30,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2018-11-28 12:46:30,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 129 transitions. [2018-11-28 12:46:30,693 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 129 transitions. Word has length 47 [2018-11-28 12:46:30,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:46:30,693 INFO L480 AbstractCegarLoop]: Abstraction has 112 states and 129 transitions. [2018-11-28 12:46:30,694 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:46:30,694 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 129 transitions. [2018-11-28 12:46:30,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-11-28 12:46:30,695 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:46:30,695 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] [2018-11-28 12:46:30,695 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:46:30,695 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:46:30,695 INFO L82 PathProgramCache]: Analyzing trace with hash -757338889, now seen corresponding path program 1 times [2018-11-28 12:46:30,696 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:46:30,696 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:46:30,696 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:46:30,696 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:46:30,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:46:30,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:46:30,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:46:30,824 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:46:30,824 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 12:46:30,825 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 12:46:30,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 12:46:30,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-28 12:46:30,825 INFO L87 Difference]: Start difference. First operand 112 states and 129 transitions. Second operand 7 states. [2018-11-28 12:46:31,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:46:31,003 INFO L93 Difference]: Finished difference Result 200 states and 235 transitions. [2018-11-28 12:46:31,003 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 12:46:31,003 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2018-11-28 12:46:31,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:46:31,004 INFO L225 Difference]: With dead ends: 200 [2018-11-28 12:46:31,005 INFO L226 Difference]: Without dead ends: 112 [2018-11-28 12:46:31,005 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 [2018-11-28 12:46:31,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2018-11-28 12:46:31,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2018-11-28 12:46:31,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2018-11-28 12:46:31,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 128 transitions. [2018-11-28 12:46:31,014 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 128 transitions. Word has length 52 [2018-11-28 12:46:31,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:46:31,014 INFO L480 AbstractCegarLoop]: Abstraction has 112 states and 128 transitions. [2018-11-28 12:46:31,014 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 12:46:31,014 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 128 transitions. [2018-11-28 12:46:31,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-11-28 12:46:31,016 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:46:31,016 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] [2018-11-28 12:46:31,016 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:46:31,016 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:46:31,017 INFO L82 PathProgramCache]: Analyzing trace with hash -1328849458, now seen corresponding path program 1 times [2018-11-28 12:46:31,017 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:46:31,017 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:46:31,018 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:46:31,018 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:46:31,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:46:31,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:46:31,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:46:31,099 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:46:31,099 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 12:46:31,100 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 12:46:31,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 12:46:31,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 12:46:31,100 INFO L87 Difference]: Start difference. First operand 112 states and 128 transitions. Second operand 5 states. [2018-11-28 12:46:31,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:46:31,466 INFO L93 Difference]: Finished difference Result 290 states and 347 transitions. [2018-11-28 12:46:31,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 12:46:31,467 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2018-11-28 12:46:31,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:46:31,469 INFO L225 Difference]: With dead ends: 290 [2018-11-28 12:46:31,469 INFO L226 Difference]: Without dead ends: 202 [2018-11-28 12:46:31,470 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-11-28 12:46:31,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2018-11-28 12:46:31,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 183. [2018-11-28 12:46:31,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2018-11-28 12:46:31,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 209 transitions. [2018-11-28 12:46:31,495 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 209 transitions. Word has length 60 [2018-11-28 12:46:31,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:46:31,495 INFO L480 AbstractCegarLoop]: Abstraction has 183 states and 209 transitions. [2018-11-28 12:46:31,495 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 12:46:31,496 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 209 transitions. [2018-11-28 12:46:31,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-11-28 12:46:31,497 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:46:31,497 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] [2018-11-28 12:46:31,497 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:46:31,498 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:46:31,498 INFO L82 PathProgramCache]: Analyzing trace with hash -1343404140, now seen corresponding path program 1 times [2018-11-28 12:46:31,499 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:46:31,499 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:46:31,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:46:31,501 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:46:31,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:46:31,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:46:31,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:46:31,582 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:46:31,582 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 12:46:31,582 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 12:46:31,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 12:46:31,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 12:46:31,583 INFO L87 Difference]: Start difference. First operand 183 states and 209 transitions. Second operand 6 states. [2018-11-28 12:46:31,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:46:31,739 INFO L93 Difference]: Finished difference Result 486 states and 574 transitions. [2018-11-28 12:46:31,740 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 12:46:31,740 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 74 [2018-11-28 12:46:31,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:46:31,743 INFO L225 Difference]: With dead ends: 486 [2018-11-28 12:46:31,743 INFO L226 Difference]: Without dead ends: 327 [2018-11-28 12:46:31,745 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-28 12:46:31,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2018-11-28 12:46:31,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 321. [2018-11-28 12:46:31,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2018-11-28 12:46:31,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 368 transitions. [2018-11-28 12:46:31,772 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 368 transitions. Word has length 74 [2018-11-28 12:46:31,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:46:31,773 INFO L480 AbstractCegarLoop]: Abstraction has 321 states and 368 transitions. [2018-11-28 12:46:31,773 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 12:46:31,773 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 368 transitions. [2018-11-28 12:46:31,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-11-28 12:46:31,775 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:46:31,775 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] [2018-11-28 12:46:31,778 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:46:31,778 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:46:31,779 INFO L82 PathProgramCache]: Analyzing trace with hash -385772688, now seen corresponding path program 1 times [2018-11-28 12:46:31,779 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:46:31,779 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:46:31,779 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:46:31,780 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:46:31,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:46:31,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:46:31,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:46:31,857 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:46:31,857 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 12:46:31,857 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 12:46:31,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 12:46:31,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 12:46:31,858 INFO L87 Difference]: Start difference. First operand 321 states and 368 transitions. Second operand 7 states. [2018-11-28 12:46:32,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:46:32,191 INFO L93 Difference]: Finished difference Result 356 states and 421 transitions. [2018-11-28 12:46:32,192 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-28 12:46:32,192 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 78 [2018-11-28 12:46:32,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:46:32,194 INFO L225 Difference]: With dead ends: 356 [2018-11-28 12:46:32,194 INFO L226 Difference]: Without dead ends: 353 [2018-11-28 12:46:32,195 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-11-28 12:46:32,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2018-11-28 12:46:32,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 321. [2018-11-28 12:46:32,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2018-11-28 12:46:32,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 367 transitions. [2018-11-28 12:46:32,215 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 367 transitions. Word has length 78 [2018-11-28 12:46:32,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:46:32,216 INFO L480 AbstractCegarLoop]: Abstraction has 321 states and 367 transitions. [2018-11-28 12:46:32,216 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 12:46:32,216 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 367 transitions. [2018-11-28 12:46:32,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-11-28 12:46:32,217 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:46:32,217 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] [2018-11-28 12:46:32,218 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:46:32,218 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:46:32,218 INFO L82 PathProgramCache]: Analyzing trace with hash -1576837971, now seen corresponding path program 1 times [2018-11-28 12:46:32,218 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:46:32,218 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:46:32,219 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:46:32,219 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:46:32,219 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:46:32,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:46:32,267 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-28 12:46:32,267 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:46:32,267 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 12:46:32,268 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 12:46:32,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 12:46:32,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 12:46:32,268 INFO L87 Difference]: Start difference. First operand 321 states and 367 transitions. Second operand 6 states. [2018-11-28 12:46:32,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:46:32,291 INFO L93 Difference]: Finished difference Result 632 states and 738 transitions. [2018-11-28 12:46:32,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 12:46:32,292 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 94 [2018-11-28 12:46:32,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:46:32,293 INFO L225 Difference]: With dead ends: 632 [2018-11-28 12:46:32,294 INFO L226 Difference]: Without dead ends: 335 [2018-11-28 12:46:32,294 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-28 12:46:32,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2018-11-28 12:46:32,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 331. [2018-11-28 12:46:32,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 331 states. [2018-11-28 12:46:32,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 377 transitions. [2018-11-28 12:46:32,310 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 377 transitions. Word has length 94 [2018-11-28 12:46:32,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:46:32,310 INFO L480 AbstractCegarLoop]: Abstraction has 331 states and 377 transitions. [2018-11-28 12:46:32,310 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 12:46:32,310 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 377 transitions. [2018-11-28 12:46:32,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-11-28 12:46:32,311 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:46:32,312 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] [2018-11-28 12:46:32,312 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:46:32,312 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:46:32,312 INFO L82 PathProgramCache]: Analyzing trace with hash 1820736047, now seen corresponding path program 1 times [2018-11-28 12:46:32,312 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:46:32,312 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:46:32,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:46:32,313 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:46:32,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:46:32,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:46:32,372 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-28 12:46:32,373 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:46:32,373 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-28 12:46:32,373 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 12:46:32,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 12:46:32,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-28 12:46:32,373 INFO L87 Difference]: Start difference. First operand 331 states and 377 transitions. Second operand 8 states. [2018-11-28 12:46:32,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:46:32,398 INFO L93 Difference]: Finished difference Result 652 states and 760 transitions. [2018-11-28 12:46:32,398 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 12:46:32,398 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 94 [2018-11-28 12:46:32,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:46:32,400 INFO L225 Difference]: With dead ends: 652 [2018-11-28 12:46:32,400 INFO L226 Difference]: Without dead ends: 345 [2018-11-28 12:46:32,401 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-28 12:46:32,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2018-11-28 12:46:32,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 339. [2018-11-28 12:46:32,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 339 states. [2018-11-28 12:46:32,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 385 transitions. [2018-11-28 12:46:32,414 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 385 transitions. Word has length 94 [2018-11-28 12:46:32,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:46:32,414 INFO L480 AbstractCegarLoop]: Abstraction has 339 states and 385 transitions. [2018-11-28 12:46:32,414 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 12:46:32,415 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 385 transitions. [2018-11-28 12:46:32,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-11-28 12:46:32,416 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:46:32,416 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] [2018-11-28 12:46:32,416 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:46:32,416 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:46:32,416 INFO L82 PathProgramCache]: Analyzing trace with hash -503291792, now seen corresponding path program 1 times [2018-11-28 12:46:32,416 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:46:32,416 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:46:32,417 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:46:32,417 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:46:32,417 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:46:32,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:46:32,466 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-28 12:46:32,466 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:46:32,466 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 12:46:32,467 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 12:46:32,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 12:46:32,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 12:46:32,467 INFO L87 Difference]: Start difference. First operand 339 states and 385 transitions. Second operand 4 states. [2018-11-28 12:46:32,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:46:32,572 INFO L93 Difference]: Finished difference Result 999 states and 1192 transitions. [2018-11-28 12:46:32,572 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 12:46:32,572 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 94 [2018-11-28 12:46:32,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:46:32,575 INFO L225 Difference]: With dead ends: 999 [2018-11-28 12:46:32,575 INFO L226 Difference]: Without dead ends: 684 [2018-11-28 12:46:32,576 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 12:46:32,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2018-11-28 12:46:32,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 669. [2018-11-28 12:46:32,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 669 states. [2018-11-28 12:46:32,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 779 transitions. [2018-11-28 12:46:32,601 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 779 transitions. Word has length 94 [2018-11-28 12:46:32,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:46:32,602 INFO L480 AbstractCegarLoop]: Abstraction has 669 states and 779 transitions. [2018-11-28 12:46:32,602 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 12:46:32,602 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 779 transitions. [2018-11-28 12:46:32,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2018-11-28 12:46:32,604 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:46:32,604 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] [2018-11-28 12:46:32,604 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:46:32,604 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:46:32,604 INFO L82 PathProgramCache]: Analyzing trace with hash 1178440330, now seen corresponding path program 1 times [2018-11-28 12:46:32,604 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:46:32,604 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:46:32,605 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:46:32,605 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:46:32,605 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:46:32,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:46:32,691 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-28 12:46:32,691 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:46:32,691 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_59ff8a06-c787-475b-9924-6b69aff7e5df/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 [2018-11-28 12:46:32,699 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:46:32,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:46:32,774 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:46:32,881 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:46:32,897 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-28 12:46:32,897 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [13] total 19 [2018-11-28 12:46:32,898 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-11-28 12:46:32,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-11-28 12:46:32,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2018-11-28 12:46:32,898 INFO L87 Difference]: Start difference. First operand 669 states and 779 transitions. Second operand 19 states. [2018-11-28 12:46:33,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:46:33,412 INFO L93 Difference]: Finished difference Result 1286 states and 1514 transitions. [2018-11-28 12:46:33,415 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-11-28 12:46:33,415 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 98 [2018-11-28 12:46:33,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:46:33,417 INFO L225 Difference]: With dead ends: 1286 [2018-11-28 12:46:33,417 INFO L226 Difference]: Without dead ends: 641 [2018-11-28 12:46:33,418 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 93 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=115, Invalid=877, Unknown=0, NotChecked=0, Total=992 [2018-11-28 12:46:33,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2018-11-28 12:46:33,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 641. [2018-11-28 12:46:33,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 641 states. [2018-11-28 12:46:33,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 733 transitions. [2018-11-28 12:46:33,443 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 733 transitions. Word has length 98 [2018-11-28 12:46:33,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:46:33,443 INFO L480 AbstractCegarLoop]: Abstraction has 641 states and 733 transitions. [2018-11-28 12:46:33,443 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-11-28 12:46:33,443 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 733 transitions. [2018-11-28 12:46:33,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-11-28 12:46:33,445 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:46:33,446 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, 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] [2018-11-28 12:46:33,446 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:46:33,446 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:46:33,446 INFO L82 PathProgramCache]: Analyzing trace with hash 945536832, now seen corresponding path program 1 times [2018-11-28 12:46:33,446 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:46:33,446 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:46:33,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:46:33,447 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:46:33,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:46:33,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:46:33,515 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 22 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-11-28 12:46:33,516 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:46:33,516 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_59ff8a06-c787-475b-9924-6b69aff7e5df/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 [2018-11-28 12:46:33,523 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:46:33,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:46:33,595 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:46:33,623 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-28 12:46:33,639 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-28 12:46:33,639 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2018-11-28 12:46:33,639 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 12:46:33,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 12:46:33,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-28 12:46:33,640 INFO L87 Difference]: Start difference. First operand 641 states and 733 transitions. Second operand 6 states. [2018-11-28 12:46:33,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:46:33,950 INFO L93 Difference]: Finished difference Result 1395 states and 1684 transitions. [2018-11-28 12:46:33,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 12:46:33,951 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 138 [2018-11-28 12:46:33,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:46:33,953 INFO L225 Difference]: With dead ends: 1395 [2018-11-28 12:46:33,953 INFO L226 Difference]: Without dead ends: 896 [2018-11-28 12:46:33,954 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2018-11-28 12:46:33,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2018-11-28 12:46:33,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 643. [2018-11-28 12:46:33,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 643 states. [2018-11-28 12:46:33,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 733 transitions. [2018-11-28 12:46:33,981 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 733 transitions. Word has length 138 [2018-11-28 12:46:33,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:46:33,981 INFO L480 AbstractCegarLoop]: Abstraction has 643 states and 733 transitions. [2018-11-28 12:46:33,981 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 12:46:33,981 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 733 transitions. [2018-11-28 12:46:33,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-11-28 12:46:33,982 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:46:33,982 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:46:33,983 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:46:33,983 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:46:33,983 INFO L82 PathProgramCache]: Analyzing trace with hash -1818604634, now seen corresponding path program 1 times [2018-11-28 12:46:33,983 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:46:33,983 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:46:33,984 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:46:33,984 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:46:33,984 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:46:34,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:46:34,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:46:34,075 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 12:46:34,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:46:34 BoogieIcfgContainer [2018-11-28 12:46:34,176 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 12:46:34,176 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:46:34,176 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:46:34,176 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:46:34,177 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:46:30" (3/4) ... [2018-11-28 12:46:34,178 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-28 12:46:34,276 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_59ff8a06-c787-475b-9924-6b69aff7e5df/bin-2019/uautomizer/witness.graphml [2018-11-28 12:46:34,277 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:46:34,277 INFO L168 Benchmark]: Toolchain (without parser) took 4826.93 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 304.6 MB). Free memory was 950.6 MB in the beginning and 934.3 MB in the end (delta: 16.3 MB). Peak memory consumption was 320.9 MB. Max. memory is 11.5 GB. [2018-11-28 12:46:34,278 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:46:34,278 INFO L168 Benchmark]: CACSL2BoogieTranslator took 331.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -165.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. [2018-11-28 12:46:34,278 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.84 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:46:34,278 INFO L168 Benchmark]: Boogie Preprocessor took 22.94 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-11-28 12:46:34,279 INFO L168 Benchmark]: RCFGBuilder took 407.92 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: 53.7 MB). Peak memory consumption was 53.7 MB. Max. memory is 11.5 GB. [2018-11-28 12:46:34,279 INFO L168 Benchmark]: TraceAbstraction took 3942.16 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 175.1 MB). Free memory was 1.1 GB in the beginning and 979.2 MB in the end (delta: 80.2 MB). Peak memory consumption was 255.3 MB. Max. memory is 11.5 GB. [2018-11-28 12:46:34,279 INFO L168 Benchmark]: Witness Printer took 100.34 ms. Allocated memory is still 1.3 GB. Free memory was 979.2 MB in the beginning and 934.3 MB in the end (delta: 44.9 MB). Peak memory consumption was 44.9 MB. Max. memory is 11.5 GB. [2018-11-28 12:46:34,280 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 331.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -165.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.84 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 22.94 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 407.92 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: 53.7 MB). Peak memory consumption was 53.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3942.16 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 175.1 MB). Free memory was 1.1 GB in the beginning and 979.2 MB in the end (delta: 80.2 MB). Peak memory consumption was 255.3 MB. Max. memory is 11.5 GB. * Witness Printer took 100.34 ms. Allocated memory is still 1.3 GB. Free memory was 979.2 MB in the beginning and 934.3 MB in the end (delta: 44.9 MB). Peak memory consumption was 44.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 764]: 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; [L413] int waterLevel = 1; [L414] int methaneLevelCritical = 0; [L581] int pumpRunning = 0; [L582] int systemActive = 1; [L833] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=193, \old(head)=178, \old(head)=200, \old(methaneLevelCritical)=152, \old(pumpRunning)=140, \old(systemActive)=139, \old(waterLevel)=142, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L906] int retValue_acc ; [L907] 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] [L911] 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] [L912] 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] [L913] 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] [L824] int retValue_acc ; [L827] retValue_acc = 1 [L828] 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] [L913] 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] [L913] tmp = valid_product() [L915] 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] [L917] 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] [L918] 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] [L900] 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] [L511] int splverifierCounter ; [L512] int tmp ; [L513] int tmp___0 ; [L514] int tmp___1 ; [L515] int tmp___2 ; [L518] 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] [L520] 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] [L522] 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] [L528] tmp = __VERIFIER_nondet_int() [L530] 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] [L532] 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] [L431] COND TRUE waterLevel < 2 [L432] 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] [L532] 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] [L538] tmp___0 = __VERIFIER_nondet_int() [L540] COND FALSE !(\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=0, waterLevel=2] [L548] tmp___2 = __VERIFIER_nondet_int() [L550] COND FALSE !(\read(tmp___2)) [L556] tmp___1 = __VERIFIER_nondet_int() [L558] COND FALSE !(\read(tmp___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, tmp=1, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L565] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L589] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L596] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L598] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L618] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L621] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L623] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L733] int retValue_acc ; [L734] int tmp ; [L735] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L739] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L493] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L496] COND FALSE !(waterLevel < 2) [L500] retValue_acc = 0 [L501] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L739] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L739] tmp = isHighWaterSensorDry() [L741] COND FALSE !(\read(tmp)) [L744] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L746] retValue_acc = tmp___0 [L747] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L623] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L623] tmp = isHighWaterLevel() [L625] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L627] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L652] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L656] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L677] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L681] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L452] int retValue_acc ; [L455] retValue_acc = methaneLevelCritical [L456] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L681] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L681] retValue_acc = isMethaneLevelCritical() [L683] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L656] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L656] tmp = isMethaneAlarm() [L658] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L662] CALL activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L646] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L662] RET activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L627] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L598] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L604] 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=0, pumpRunning=1, systemActive=1, waterLevel=2] [L770] int tmp ; [L771] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L775] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L452] int retValue_acc ; [L455] retValue_acc = methaneLevelCritical [L456] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=2] [L775] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L775] tmp = isMethaneLevelCritical() [L777] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L604] RET __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L565] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L520] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L522] 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=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L528] tmp = __VERIFIER_nondet_int() [L530] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L538] tmp___0 = __VERIFIER_nondet_int() [L540] 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=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___1=0, tmp___2=0, waterLevel=2] [L542] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L443] COND FALSE !(\read(methaneLevelCritical)) [L446] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L542] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___1=0, tmp___2=0, waterLevel=2] [L548] tmp___2 = __VERIFIER_nondet_int() [L550] COND FALSE !(\read(tmp___2)) [L556] tmp___1 = __VERIFIER_nondet_int() [L558] 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=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___1=0, tmp___2=0, waterLevel=2] [L565] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L589] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L591] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L419] COND TRUE waterLevel > 0 [L420] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L591] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L596] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L598] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L618] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L621] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L636] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L598] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L604] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L770] int tmp ; [L771] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L775] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L452] int retValue_acc ; [L455] retValue_acc = methaneLevelCritical [L456] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L775] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L775] tmp = isMethaneLevelCritical() [L777] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L779] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L688] int retValue_acc ; [L691] retValue_acc = pumpRunning [L692] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L779] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L779] tmp___0 = isPumpRunning() [L781] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L783] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L764] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 26 procedures, 134 locations, 1 error locations. UNSAFE Result, 3.8s OverallTime, 12 OverallIterations, 3 TraceHistogramMax, 2.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1687 SDtfs, 1219 SDslu, 4481 SDs, 0 SdLazy, 2155 SolverSat, 451 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 361 GetRequests, 276 SyntacticMatches, 2 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=669occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 335 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 1245 NumberOfCodeBlocks, 1245 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1098 ConstructedInterpolants, 0 QuantifiedInterpolants, 169528 SizeOfPredicates, 3 NumberOfNonLiveVariables, 1588 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 13 InterpolantComputations, 11 PerfectInterpolantSequences, 81/85 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...