./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product41_false-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_fcac0b84-32ae-4aa8-b808-ac3446925011/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fcac0b84-32ae-4aa8-b808-ac3446925011/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fcac0b84-32ae-4aa8-b808-ac3446925011/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fcac0b84-32ae-4aa8-b808-ac3446925011/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product41_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_fcac0b84-32ae-4aa8-b808-ac3446925011/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fcac0b84-32ae-4aa8-b808-ac3446925011/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 5a2d3ce20e3d26ebf70024607ecab77b852f9995 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 11:37:06,191 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 11:37:06,192 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 11:37:06,200 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 11:37:06,200 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 11:37:06,200 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 11:37:06,201 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 11:37:06,202 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 11:37:06,203 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 11:37:06,204 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 11:37:06,204 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 11:37:06,204 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 11:37:06,205 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 11:37:06,206 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 11:37:06,207 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 11:37:06,207 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 11:37:06,208 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 11:37:06,209 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 11:37:06,210 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 11:37:06,211 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 11:37:06,212 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 11:37:06,213 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 11:37:06,214 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 11:37:06,214 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 11:37:06,215 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 11:37:06,215 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 11:37:06,216 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 11:37:06,216 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 11:37:06,217 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 11:37:06,218 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 11:37:06,218 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 11:37:06,218 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 11:37:06,218 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 11:37:06,218 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 11:37:06,219 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 11:37:06,219 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 11:37:06,219 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fcac0b84-32ae-4aa8-b808-ac3446925011/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-08 11:37:06,226 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 11:37:06,226 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 11:37:06,227 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 11:37:06,227 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 11:37:06,228 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 11:37:06,228 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 11:37:06,228 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 11:37:06,228 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 11:37:06,228 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 11:37:06,228 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 11:37:06,229 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 11:37:06,229 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 11:37:06,229 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 11:37:06,229 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 11:37:06,229 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 11:37:06,229 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 11:37:06,229 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 11:37:06,230 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 11:37:06,230 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 11:37:06,230 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 11:37:06,230 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 11:37:06,230 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 11:37:06,230 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 11:37:06,231 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 11:37:06,231 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 11:37:06,231 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 11:37:06,231 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 11:37:06,231 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-08 11:37:06,231 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 11:37:06,231 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 11:37:06,232 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_fcac0b84-32ae-4aa8-b808-ac3446925011/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 -> 5a2d3ce20e3d26ebf70024607ecab77b852f9995 [2018-12-08 11:37:06,249 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 11:37:06,255 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 11:37:06,257 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 11:37:06,258 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 11:37:06,258 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 11:37:06,259 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fcac0b84-32ae-4aa8-b808-ac3446925011/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product41_false-unreach-call_false-termination.cil.c [2018-12-08 11:37:06,292 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fcac0b84-32ae-4aa8-b808-ac3446925011/bin-2019/uautomizer/data/a64990d73/d26c258aa2964009b2be5c62fcc37ff7/FLAGc40d8a14c [2018-12-08 11:37:06,741 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 11:37:06,742 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fcac0b84-32ae-4aa8-b808-ac3446925011/sv-benchmarks/c/product-lines/minepump_spec1_product41_false-unreach-call_false-termination.cil.c [2018-12-08 11:37:06,748 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fcac0b84-32ae-4aa8-b808-ac3446925011/bin-2019/uautomizer/data/a64990d73/d26c258aa2964009b2be5c62fcc37ff7/FLAGc40d8a14c [2018-12-08 11:37:06,756 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fcac0b84-32ae-4aa8-b808-ac3446925011/bin-2019/uautomizer/data/a64990d73/d26c258aa2964009b2be5c62fcc37ff7 [2018-12-08 11:37:06,758 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 11:37:06,758 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 11:37:06,759 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 11:37:06,759 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 11:37:06,761 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 11:37:06,761 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 11:37:06" (1/1) ... [2018-12-08 11:37:06,763 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cc82c98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:37:06, skipping insertion in model container [2018-12-08 11:37:06,763 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 11:37:06" (1/1) ... [2018-12-08 11:37:06,767 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 11:37:06,787 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 11:37:06,929 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 11:37:06,969 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 11:37:07,010 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 11:37:07,026 INFO L195 MainTranslator]: Completed translation [2018-12-08 11:37:07,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:37:07 WrapperNode [2018-12-08 11:37:07,026 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 11:37:07,027 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 11:37:07,027 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 11:37:07,027 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 11:37:07,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:37:07" (1/1) ... [2018-12-08 11:37:07,041 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:37:07" (1/1) ... [2018-12-08 11:37:07,047 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 11:37:07,047 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 11:37:07,047 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 11:37:07,048 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 11:37:07,053 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:37:07" (1/1) ... [2018-12-08 11:37:07,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:37:07" (1/1) ... [2018-12-08 11:37:07,056 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:37:07" (1/1) ... [2018-12-08 11:37:07,056 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:37:07" (1/1) ... [2018-12-08 11:37:07,062 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:37:07" (1/1) ... [2018-12-08 11:37:07,066 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:37:07" (1/1) ... [2018-12-08 11:37:07,068 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:37:07" (1/1) ... [2018-12-08 11:37:07,069 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 11:37:07,070 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 11:37:07,070 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 11:37:07,070 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 11:37:07,070 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:37:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fcac0b84-32ae-4aa8-b808-ac3446925011/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 11:37:07,102 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-08 11:37:07,103 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-08 11:37:07,103 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 11:37:07,103 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 11:37:07,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 11:37:07,103 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-08 11:37:07,103 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-08 11:37:07,103 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-08 11:37:07,103 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-08 11:37:07,103 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-08 11:37:07,103 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-08 11:37:07,103 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-08 11:37:07,103 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-08 11:37:07,103 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-08 11:37:07,103 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-08 11:37:07,104 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-08 11:37:07,104 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-08 11:37:07,104 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-08 11:37:07,104 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-08 11:37:07,104 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-08 11:37:07,104 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-08 11:37:07,104 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-08 11:37:07,104 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-08 11:37:07,104 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-08 11:37:07,104 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-08 11:37:07,104 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-08 11:37:07,104 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-08 11:37:07,104 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-08 11:37:07,104 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-08 11:37:07,104 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-08 11:37:07,105 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-08 11:37:07,105 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-08 11:37:07,105 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-08 11:37:07,105 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-08 11:37:07,105 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-08 11:37:07,105 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-08 11:37:07,105 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-08 11:37:07,105 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-12-08 11:37:07,105 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-12-08 11:37:07,105 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2018-12-08 11:37:07,105 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2018-12-08 11:37:07,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-08 11:37:07,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 11:37:07,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 11:37:07,105 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-08 11:37:07,106 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-08 11:37:07,106 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-08 11:37:07,106 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-08 11:37:07,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 11:37:07,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 11:37:07,106 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2018-12-08 11:37:07,106 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2018-12-08 11:37:07,360 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 11:37:07,360 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-08 11:37:07,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:37:07 BoogieIcfgContainer [2018-12-08 11:37:07,360 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 11:37:07,361 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 11:37:07,361 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 11:37:07,363 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 11:37:07,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 11:37:06" (1/3) ... [2018-12-08 11:37:07,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56d71a9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 11:37:07, skipping insertion in model container [2018-12-08 11:37:07,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:37:07" (2/3) ... [2018-12-08 11:37:07,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56d71a9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 11:37:07, skipping insertion in model container [2018-12-08 11:37:07,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:37:07" (3/3) ... [2018-12-08 11:37:07,365 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product41_false-unreach-call_false-termination.cil.c [2018-12-08 11:37:07,371 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 11:37:07,376 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 11:37:07,386 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 11:37:07,404 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 11:37:07,404 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 11:37:07,405 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 11:37:07,405 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 11:37:07,405 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 11:37:07,405 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 11:37:07,405 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 11:37:07,405 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 11:37:07,405 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 11:37:07,417 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states. [2018-12-08 11:37:07,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-08 11:37:07,422 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 11:37:07,422 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 11:37:07,424 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 11:37:07,427 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 11:37:07,427 INFO L82 PathProgramCache]: Analyzing trace with hash 1433604863, now seen corresponding path program 1 times [2018-12-08 11:37:07,428 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 11:37:07,429 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 11:37:07,457 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:37:07,458 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 11:37:07,458 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:37:07,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:37:07,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:37:07,566 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 11:37:07,566 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 11:37:07,569 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-08 11:37:07,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-08 11:37:07,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 11:37:07,578 INFO L87 Difference]: Start difference. First operand 130 states. Second operand 2 states. [2018-12-08 11:37:07,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 11:37:07,600 INFO L93 Difference]: Finished difference Result 234 states and 291 transitions. [2018-12-08 11:37:07,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-08 11:37:07,600 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-08 11:37:07,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 11:37:07,607 INFO L225 Difference]: With dead ends: 234 [2018-12-08 11:37:07,608 INFO L226 Difference]: Without dead ends: 117 [2018-12-08 11:37:07,610 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 11:37:07,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2018-12-08 11:37:07,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2018-12-08 11:37:07,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2018-12-08 11:37:07,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 137 transitions. [2018-12-08 11:37:07,638 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 137 transitions. Word has length 46 [2018-12-08 11:37:07,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 11:37:07,638 INFO L480 AbstractCegarLoop]: Abstraction has 117 states and 137 transitions. [2018-12-08 11:37:07,639 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-08 11:37:07,639 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 137 transitions. [2018-12-08 11:37:07,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-08 11:37:07,640 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 11:37:07,640 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 11:37:07,640 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 11:37:07,640 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 11:37:07,641 INFO L82 PathProgramCache]: Analyzing trace with hash 1125637497, now seen corresponding path program 1 times [2018-12-08 11:37:07,641 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 11:37:07,641 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 11:37:07,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:37:07,642 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 11:37:07,642 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:37:07,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:37:07,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:37:07,697 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 11:37:07,698 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 11:37:07,699 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 11:37:07,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 11:37:07,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 11:37:07,699 INFO L87 Difference]: Start difference. First operand 117 states and 137 transitions. Second operand 3 states. [2018-12-08 11:37:07,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 11:37:07,711 INFO L93 Difference]: Finished difference Result 183 states and 213 transitions. [2018-12-08 11:37:07,711 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 11:37:07,711 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-08 11:37:07,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 11:37:07,712 INFO L225 Difference]: With dead ends: 183 [2018-12-08 11:37:07,712 INFO L226 Difference]: Without dead ends: 108 [2018-12-08 11:37:07,713 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 11:37:07,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2018-12-08 11:37:07,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2018-12-08 11:37:07,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2018-12-08 11:37:07,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 125 transitions. [2018-12-08 11:37:07,720 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 125 transitions. Word has length 47 [2018-12-08 11:37:07,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 11:37:07,720 INFO L480 AbstractCegarLoop]: Abstraction has 108 states and 125 transitions. [2018-12-08 11:37:07,720 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 11:37:07,720 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 125 transitions. [2018-12-08 11:37:07,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-12-08 11:37:07,721 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 11:37:07,721 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 11:37:07,721 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 11:37:07,721 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 11:37:07,721 INFO L82 PathProgramCache]: Analyzing trace with hash -690378636, now seen corresponding path program 1 times [2018-12-08 11:37:07,722 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 11:37:07,722 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 11:37:07,722 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:37:07,722 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 11:37:07,722 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:37:07,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:37:07,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:37:07,789 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 11:37:07,790 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-08 11:37:07,790 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 11:37:07,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 11:37:07,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-08 11:37:07,791 INFO L87 Difference]: Start difference. First operand 108 states and 125 transitions. Second operand 7 states. [2018-12-08 11:37:07,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 11:37:07,943 INFO L93 Difference]: Finished difference Result 192 states and 227 transitions. [2018-12-08 11:37:07,943 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 11:37:07,944 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2018-12-08 11:37:07,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 11:37:07,945 INFO L225 Difference]: With dead ends: 192 [2018-12-08 11:37:07,945 INFO L226 Difference]: Without dead ends: 108 [2018-12-08 11:37:07,946 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-08 11:37:07,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2018-12-08 11:37:07,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2018-12-08 11:37:07,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2018-12-08 11:37:07,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 124 transitions. [2018-12-08 11:37:07,955 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 124 transitions. Word has length 51 [2018-12-08 11:37:07,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 11:37:07,955 INFO L480 AbstractCegarLoop]: Abstraction has 108 states and 124 transitions. [2018-12-08 11:37:07,955 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 11:37:07,955 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 124 transitions. [2018-12-08 11:37:07,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-12-08 11:37:07,956 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 11:37:07,957 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] [2018-12-08 11:37:07,957 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 11:37:07,957 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 11:37:07,957 INFO L82 PathProgramCache]: Analyzing trace with hash 373656101, now seen corresponding path program 1 times [2018-12-08 11:37:07,957 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 11:37:07,957 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 11:37:07,958 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:37:07,958 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 11:37:07,959 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:37:07,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:37:08,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:37:08,009 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 11:37:08,009 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-08 11:37:08,009 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 11:37:08,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 11:37:08,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-08 11:37:08,010 INFO L87 Difference]: Start difference. First operand 108 states and 124 transitions. Second operand 5 states. [2018-12-08 11:37:08,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 11:37:08,270 INFO L93 Difference]: Finished difference Result 277 states and 333 transitions. [2018-12-08 11:37:08,270 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 11:37:08,270 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 59 [2018-12-08 11:37:08,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 11:37:08,271 INFO L225 Difference]: With dead ends: 277 [2018-12-08 11:37:08,272 INFO L226 Difference]: Without dead ends: 193 [2018-12-08 11:37:08,272 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 [2018-12-08 11:37:08,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2018-12-08 11:37:08,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 175. [2018-12-08 11:37:08,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2018-12-08 11:37:08,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 201 transitions. [2018-12-08 11:37:08,285 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 201 transitions. Word has length 59 [2018-12-08 11:37:08,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 11:37:08,285 INFO L480 AbstractCegarLoop]: Abstraction has 175 states and 201 transitions. [2018-12-08 11:37:08,286 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 11:37:08,286 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 201 transitions. [2018-12-08 11:37:08,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-12-08 11:37:08,287 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 11:37:08,287 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] [2018-12-08 11:37:08,287 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 11:37:08,287 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 11:37:08,287 INFO L82 PathProgramCache]: Analyzing trace with hash -195947358, now seen corresponding path program 1 times [2018-12-08 11:37:08,287 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 11:37:08,287 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 11:37:08,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:37:08,288 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 11:37:08,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:37:08,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:37:08,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:37:08,351 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 11:37:08,351 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 11:37:08,352 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 11:37:08,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 11:37:08,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-08 11:37:08,352 INFO L87 Difference]: Start difference. First operand 175 states and 201 transitions. Second operand 6 states. [2018-12-08 11:37:08,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 11:37:08,472 INFO L93 Difference]: Finished difference Result 462 states and 550 transitions. [2018-12-08 11:37:08,472 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-08 11:37:08,472 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 73 [2018-12-08 11:37:08,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 11:37:08,475 INFO L225 Difference]: With dead ends: 462 [2018-12-08 11:37:08,475 INFO L226 Difference]: Without dead ends: 311 [2018-12-08 11:37:08,477 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-12-08 11:37:08,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2018-12-08 11:37:08,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 305. [2018-12-08 11:37:08,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 305 states. [2018-12-08 11:37:08,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 352 transitions. [2018-12-08 11:37:08,501 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 352 transitions. Word has length 73 [2018-12-08 11:37:08,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 11:37:08,501 INFO L480 AbstractCegarLoop]: Abstraction has 305 states and 352 transitions. [2018-12-08 11:37:08,501 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 11:37:08,501 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 352 transitions. [2018-12-08 11:37:08,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-12-08 11:37:08,503 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 11:37:08,503 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] [2018-12-08 11:37:08,503 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 11:37:08,503 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 11:37:08,503 INFO L82 PathProgramCache]: Analyzing trace with hash 515949382, now seen corresponding path program 1 times [2018-12-08 11:37:08,503 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 11:37:08,503 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 11:37:08,504 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:37:08,504 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 11:37:08,504 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:37:08,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:37:08,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:37:08,584 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 11:37:08,584 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-08 11:37:08,585 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 11:37:08,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 11:37:08,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-08 11:37:08,585 INFO L87 Difference]: Start difference. First operand 305 states and 352 transitions. Second operand 7 states. [2018-12-08 11:37:08,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 11:37:08,847 INFO L93 Difference]: Finished difference Result 338 states and 401 transitions. [2018-12-08 11:37:08,847 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-08 11:37:08,847 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 77 [2018-12-08 11:37:08,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 11:37:08,848 INFO L225 Difference]: With dead ends: 338 [2018-12-08 11:37:08,848 INFO L226 Difference]: Without dead ends: 335 [2018-12-08 11:37:08,849 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 [2018-12-08 11:37:08,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2018-12-08 11:37:08,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 305. [2018-12-08 11:37:08,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 305 states. [2018-12-08 11:37:08,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 351 transitions. [2018-12-08 11:37:08,862 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 351 transitions. Word has length 77 [2018-12-08 11:37:08,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 11:37:08,863 INFO L480 AbstractCegarLoop]: Abstraction has 305 states and 351 transitions. [2018-12-08 11:37:08,863 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 11:37:08,863 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 351 transitions. [2018-12-08 11:37:08,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-12-08 11:37:08,864 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 11:37:08,864 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] [2018-12-08 11:37:08,864 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 11:37:08,864 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 11:37:08,864 INFO L82 PathProgramCache]: Analyzing trace with hash 928520475, now seen corresponding path program 1 times [2018-12-08 11:37:08,864 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 11:37:08,864 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 11:37:08,865 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:37:08,865 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 11:37:08,865 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:37:08,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:37:08,913 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-08 11:37:08,913 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 11:37:08,913 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 11:37:08,913 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 11:37:08,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 11:37:08,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-08 11:37:08,914 INFO L87 Difference]: Start difference. First operand 305 states and 351 transitions. Second operand 6 states. [2018-12-08 11:37:08,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 11:37:08,944 INFO L93 Difference]: Finished difference Result 600 states and 706 transitions. [2018-12-08 11:37:08,944 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 11:37:08,945 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 93 [2018-12-08 11:37:08,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 11:37:08,946 INFO L225 Difference]: With dead ends: 600 [2018-12-08 11:37:08,946 INFO L226 Difference]: Without dead ends: 319 [2018-12-08 11:37:08,946 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-08 11:37:08,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2018-12-08 11:37:08,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 315. [2018-12-08 11:37:08,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 315 states. [2018-12-08 11:37:08,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 361 transitions. [2018-12-08 11:37:08,958 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 361 transitions. Word has length 93 [2018-12-08 11:37:08,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 11:37:08,958 INFO L480 AbstractCegarLoop]: Abstraction has 315 states and 361 transitions. [2018-12-08 11:37:08,959 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 11:37:08,959 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 361 transitions. [2018-12-08 11:37:08,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-12-08 11:37:08,959 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 11:37:08,960 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] [2018-12-08 11:37:08,960 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 11:37:08,960 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 11:37:08,960 INFO L82 PathProgramCache]: Analyzing trace with hash 31127197, now seen corresponding path program 1 times [2018-12-08 11:37:08,960 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 11:37:08,960 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 11:37:08,960 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:37:08,961 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 11:37:08,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:37:08,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:37:09,011 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-08 11:37:09,011 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 11:37:09,011 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-08 11:37:09,012 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-08 11:37:09,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-08 11:37:09,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-08 11:37:09,012 INFO L87 Difference]: Start difference. First operand 315 states and 361 transitions. Second operand 8 states. [2018-12-08 11:37:09,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 11:37:09,032 INFO L93 Difference]: Finished difference Result 620 states and 728 transitions. [2018-12-08 11:37:09,032 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-08 11:37:09,032 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 93 [2018-12-08 11:37:09,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 11:37:09,034 INFO L225 Difference]: With dead ends: 620 [2018-12-08 11:37:09,034 INFO L226 Difference]: Without dead ends: 329 [2018-12-08 11:37:09,035 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-08 11:37:09,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2018-12-08 11:37:09,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 323. [2018-12-08 11:37:09,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 323 states. [2018-12-08 11:37:09,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 369 transitions. [2018-12-08 11:37:09,053 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 369 transitions. Word has length 93 [2018-12-08 11:37:09,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 11:37:09,054 INFO L480 AbstractCegarLoop]: Abstraction has 323 states and 369 transitions. [2018-12-08 11:37:09,054 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-08 11:37:09,054 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 369 transitions. [2018-12-08 11:37:09,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-12-08 11:37:09,055 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 11:37:09,055 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] [2018-12-08 11:37:09,056 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 11:37:09,056 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 11:37:09,056 INFO L82 PathProgramCache]: Analyzing trace with hash 2002066654, now seen corresponding path program 1 times [2018-12-08 11:37:09,056 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 11:37:09,056 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 11:37:09,057 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:37:09,057 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 11:37:09,057 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:37:09,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:37:09,111 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-08 11:37:09,111 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 11:37:09,111 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-08 11:37:09,111 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 11:37:09,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 11:37:09,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-08 11:37:09,112 INFO L87 Difference]: Start difference. First operand 323 states and 369 transitions. Second operand 4 states. [2018-12-08 11:37:09,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 11:37:09,214 INFO L93 Difference]: Finished difference Result 943 states and 1136 transitions. [2018-12-08 11:37:09,214 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-08 11:37:09,214 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 93 [2018-12-08 11:37:09,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 11:37:09,217 INFO L225 Difference]: With dead ends: 943 [2018-12-08 11:37:09,217 INFO L226 Difference]: Without dead ends: 644 [2018-12-08 11:37:09,218 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-08 11:37:09,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2018-12-08 11:37:09,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 629. [2018-12-08 11:37:09,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 629 states. [2018-12-08 11:37:09,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 739 transitions. [2018-12-08 11:37:09,256 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 739 transitions. Word has length 93 [2018-12-08 11:37:09,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 11:37:09,256 INFO L480 AbstractCegarLoop]: Abstraction has 629 states and 739 transitions. [2018-12-08 11:37:09,256 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 11:37:09,257 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 739 transitions. [2018-12-08 11:37:09,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2018-12-08 11:37:09,258 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 11:37:09,258 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] [2018-12-08 11:37:09,258 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 11:37:09,259 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 11:37:09,259 INFO L82 PathProgramCache]: Analyzing trace with hash -1002703548, now seen corresponding path program 1 times [2018-12-08 11:37:09,259 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 11:37:09,259 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 11:37:09,259 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:37:09,260 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 11:37:09,260 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:37:09,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:37:09,348 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-08 11:37:09,348 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 11:37:09,348 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fcac0b84-32ae-4aa8-b808-ac3446925011/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 11:37:09,355 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 11:37:09,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:37:09,425 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 11:37:09,550 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:37:09,566 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-08 11:37:09,567 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [13] total 19 [2018-12-08 11:37:09,567 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-12-08 11:37:09,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-12-08 11:37:09,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2018-12-08 11:37:09,568 INFO L87 Difference]: Start difference. First operand 629 states and 739 transitions. Second operand 19 states. [2018-12-08 11:37:10,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 11:37:10,020 INFO L93 Difference]: Finished difference Result 1206 states and 1434 transitions. [2018-12-08 11:37:10,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-12-08 11:37:10,021 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 97 [2018-12-08 11:37:10,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 11:37:10,024 INFO L225 Difference]: With dead ends: 1206 [2018-12-08 11:37:10,024 INFO L226 Difference]: Without dead ends: 601 [2018-12-08 11:37:10,025 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 92 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=115, Invalid=877, Unknown=0, NotChecked=0, Total=992 [2018-12-08 11:37:10,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2018-12-08 11:37:10,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2018-12-08 11:37:10,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2018-12-08 11:37:10,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 693 transitions. [2018-12-08 11:37:10,048 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 693 transitions. Word has length 97 [2018-12-08 11:37:10,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 11:37:10,049 INFO L480 AbstractCegarLoop]: Abstraction has 601 states and 693 transitions. [2018-12-08 11:37:10,049 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-12-08 11:37:10,049 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 693 transitions. [2018-12-08 11:37:10,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-12-08 11:37:10,051 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 11:37:10,051 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 11:37:10,051 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 11:37:10,051 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 11:37:10,051 INFO L82 PathProgramCache]: Analyzing trace with hash -239107615, now seen corresponding path program 1 times [2018-12-08 11:37:10,051 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 11:37:10,051 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 11:37:10,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:37:10,052 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 11:37:10,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:37:10,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:37:10,101 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-12-08 11:37:10,102 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 11:37:10,102 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fcac0b84-32ae-4aa8-b808-ac3446925011/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 11:37:10,110 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 11:37:10,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:37:10,195 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 11:37:10,236 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-08 11:37:10,258 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-08 11:37:10,258 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2018-12-08 11:37:10,259 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 11:37:10,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 11:37:10,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-12-08 11:37:10,259 INFO L87 Difference]: Start difference. First operand 601 states and 693 transitions. Second operand 6 states. [2018-12-08 11:37:10,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 11:37:10,565 INFO L93 Difference]: Finished difference Result 1295 states and 1580 transitions. [2018-12-08 11:37:10,565 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-08 11:37:10,565 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 136 [2018-12-08 11:37:10,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 11:37:10,568 INFO L225 Difference]: With dead ends: 1295 [2018-12-08 11:37:10,569 INFO L226 Difference]: Without dead ends: 828 [2018-12-08 11:37:10,570 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2018-12-08 11:37:10,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2018-12-08 11:37:10,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 603. [2018-12-08 11:37:10,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 603 states. [2018-12-08 11:37:10,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 693 transitions. [2018-12-08 11:37:10,606 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 693 transitions. Word has length 136 [2018-12-08 11:37:10,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 11:37:10,606 INFO L480 AbstractCegarLoop]: Abstraction has 603 states and 693 transitions. [2018-12-08 11:37:10,606 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 11:37:10,606 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 693 transitions. [2018-12-08 11:37:10,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-12-08 11:37:10,608 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 11:37:10,608 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 11:37:10,608 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 11:37:10,609 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 11:37:10,609 INFO L82 PathProgramCache]: Analyzing trace with hash -890713093, now seen corresponding path program 1 times [2018-12-08 11:37:10,609 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 11:37:10,609 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 11:37:10,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:37:10,609 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 11:37:10,610 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:37:10,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 11:37:10,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 11:37:10,727 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 11:37:10,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 11:37:10 BoogieIcfgContainer [2018-12-08 11:37:10,832 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 11:37:10,832 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 11:37:10,832 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 11:37:10,832 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 11:37:10,833 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:37:07" (3/4) ... [2018-12-08 11:37:10,834 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-08 11:37:10,939 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_fcac0b84-32ae-4aa8-b808-ac3446925011/bin-2019/uautomizer/witness.graphml [2018-12-08 11:37:10,939 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 11:37:10,940 INFO L168 Benchmark]: Toolchain (without parser) took 4182.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.0 MB). Free memory was 951.7 MB in the beginning and 919.4 MB in the end (delta: 32.3 MB). Peak memory consumption was 194.3 MB. Max. memory is 11.5 GB. [2018-12-08 11:37:10,941 INFO L168 Benchmark]: CDTParser took 0.12 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. [2018-12-08 11:37:10,941 INFO L168 Benchmark]: CACSL2BoogieTranslator took 267.53 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -136.8 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. [2018-12-08 11:37:10,941 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.66 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 11:37:10,941 INFO L168 Benchmark]: Boogie Preprocessor took 22.10 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-08 11:37:10,941 INFO L168 Benchmark]: RCFGBuilder took 290.85 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 46.6 MB). Peak memory consumption was 46.6 MB. Max. memory is 11.5 GB. [2018-12-08 11:37:10,941 INFO L168 Benchmark]: TraceAbstraction took 3471.09 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 62.9 MB). Free memory was 1.0 GB in the beginning and 968.9 MB in the end (delta: 70.3 MB). Peak memory consumption was 133.3 MB. Max. memory is 11.5 GB. [2018-12-08 11:37:10,942 INFO L168 Benchmark]: Witness Printer took 107.26 ms. Allocated memory is still 1.2 GB. Free memory was 968.9 MB in the beginning and 919.4 MB in the end (delta: 49.5 MB). Peak memory consumption was 49.5 MB. Max. memory is 11.5 GB. [2018-12-08 11:37:10,943 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 267.53 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -136.8 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.66 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.10 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 290.85 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 46.6 MB). Peak memory consumption was 46.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3471.09 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 62.9 MB). Free memory was 1.0 GB in the beginning and 968.9 MB in the end (delta: 70.3 MB). Peak memory consumption was 133.3 MB. Max. memory is 11.5 GB. * Witness Printer took 107.26 ms. Allocated memory is still 1.2 GB. Free memory was 968.9 MB in the beginning and 919.4 MB in the end (delta: 49.5 MB). Peak memory consumption was 49.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 887]: 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; [L480] int waterLevel = 1; [L481] int methaneLevelCritical = 0; [L578] int pumpRunning = 0; [L579] int systemActive = 1; [L749] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=193, \old(head)=200, \old(head)=175, \old(methaneLevelCritical)=148, \old(pumpRunning)=140, \old(systemActive)=139, \old(waterLevel)=141, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L825] int retValue_acc ; [L826] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L830] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L831] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L832] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L874] int retValue_acc ; [L877] retValue_acc = 1 [L878] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L832] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L832] tmp = valid_product() [L834] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L836] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L837] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L816] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L411] int splverifierCounter ; [L412] int tmp ; [L413] int tmp___0 ; [L414] int tmp___1 ; [L415] int tmp___2 ; [L418] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L420] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L422] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L428] tmp = __VERIFIER_nondet_int() [L430] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L432] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L498] COND TRUE waterLevel < 2 [L499] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L432] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L438] tmp___0 = __VERIFIER_nondet_int() [L440] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L448] tmp___2 = __VERIFIER_nondet_int() [L450] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L463] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L586] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L593] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L595] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L615] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L618] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L620] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L730] int retValue_acc ; [L731] int tmp ; [L732] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L736] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L560] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L563] COND FALSE !(waterLevel < 2) [L567] retValue_acc = 0 [L568] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L736] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L736] tmp = isHighWaterSensorDry() [L738] COND FALSE !(\read(tmp)) [L741] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L743] retValue_acc = tmp___0 [L744] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \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] [L620] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L620] tmp = isHighWaterLevel() [L622] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L624] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L649] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L653] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L674] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L678] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L519] int retValue_acc ; [L522] retValue_acc = methaneLevelCritical [L523] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L678] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L678] retValue_acc = isMethaneLevelCritical() [L680] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L653] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L653] tmp = isMethaneAlarm() [L655] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L659] CALL activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L643] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L659] RET activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L624] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L595] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L601] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L893] int tmp ; [L894] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L898] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L519] int retValue_acc ; [L522] retValue_acc = methaneLevelCritical [L523] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=2] [L898] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L898] tmp = isMethaneLevelCritical() [L900] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L601] RET __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L463] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L420] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L422] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L428] tmp = __VERIFIER_nondet_int() [L430] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L438] tmp___0 = __VERIFIER_nondet_int() [L440] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L442] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L510] COND FALSE !(\read(methaneLevelCritical)) [L513] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L442] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L448] tmp___2 = __VERIFIER_nondet_int() [L450] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L463] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L586] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L588] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L486] COND TRUE waterLevel > 0 [L487] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L588] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L593] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L595] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L615] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L618] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L633] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L595] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L601] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L893] int tmp ; [L894] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L898] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L519] int retValue_acc ; [L522] retValue_acc = methaneLevelCritical [L523] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L898] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L898] tmp = isMethaneLevelCritical() [L900] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L902] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L685] int retValue_acc ; [L688] retValue_acc = pumpRunning [L689] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L902] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L902] tmp___0 = isPumpRunning() [L904] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L906] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L887] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 25 procedures, 130 locations, 1 error locations. UNSAFE Result, 3.4s OverallTime, 12 OverallIterations, 3 TraceHistogramMax, 1.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1628 SDtfs, 1075 SDslu, 4349 SDs, 0 SdLazy, 2055 SolverSat, 347 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 355 GetRequests, 270 SyntacticMatches, 2 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=629occurred 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, 304 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 1230 NumberOfCodeBlocks, 1230 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1085 ConstructedInterpolants, 0 QuantifiedInterpolants, 164897 SizeOfPredicates, 3 NumberOfNonLiveVariables, 1543 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 13 InterpolantComputations, 11 PerfectInterpolantSequences, 79/83 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...