./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product52_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_feb3f97e-2df4-4d82-adfa-c99510bceb86/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_feb3f97e-2df4-4d82-adfa-c99510bceb86/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_feb3f97e-2df4-4d82-adfa-c99510bceb86/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_feb3f97e-2df4-4d82-adfa-c99510bceb86/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product52_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_feb3f97e-2df4-4d82-adfa-c99510bceb86/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_feb3f97e-2df4-4d82-adfa-c99510bceb86/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash eb59a6e6bbeea05d6faf844d6f750609a5360ad9 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 [2018-12-09 19:11:09,311 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 19:11:09,312 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 19:11:09,318 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 19:11:09,318 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 19:11:09,318 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 19:11:09,319 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 19:11:09,320 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 19:11:09,321 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 19:11:09,321 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 19:11:09,321 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 19:11:09,322 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 19:11:09,322 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 19:11:09,323 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 19:11:09,323 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 19:11:09,324 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 19:11:09,324 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 19:11:09,325 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 19:11:09,326 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 19:11:09,326 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 19:11:09,327 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 19:11:09,327 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 19:11:09,328 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 19:11:09,329 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 19:11:09,329 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 19:11:09,329 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 19:11:09,329 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 19:11:09,330 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 19:11:09,330 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 19:11:09,331 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 19:11:09,331 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 19:11:09,331 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 19:11:09,331 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 19:11:09,331 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 19:11:09,332 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 19:11:09,332 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 19:11:09,332 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_feb3f97e-2df4-4d82-adfa-c99510bceb86/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 19:11:09,339 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 19:11:09,340 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 19:11:09,340 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 19:11:09,340 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 19:11:09,340 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 19:11:09,340 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 19:11:09,340 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 19:11:09,341 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 19:11:09,341 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 19:11:09,341 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 19:11:09,341 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 19:11:09,341 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 19:11:09,341 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 19:11:09,341 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 19:11:09,341 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 19:11:09,342 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 19:11:09,342 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 19:11:09,342 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 19:11:09,342 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 19:11:09,342 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 19:11:09,342 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 19:11:09,342 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 19:11:09,342 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 19:11:09,342 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 19:11:09,342 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 19:11:09,342 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 19:11:09,343 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 19:11:09,343 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 19:11:09,343 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 19:11:09,343 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 19:11:09,343 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 19:11:09,343 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 19:11:09,343 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 19:11:09,343 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 19:11:09,343 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 19:11:09,343 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 19:11:09,343 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_feb3f97e-2df4-4d82-adfa-c99510bceb86/bin-2019/utaipan 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 -> Taipan 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 -> eb59a6e6bbeea05d6faf844d6f750609a5360ad9 [2018-12-09 19:11:09,361 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 19:11:09,370 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 19:11:09,372 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 19:11:09,373 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 19:11:09,374 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 19:11:09,374 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_feb3f97e-2df4-4d82-adfa-c99510bceb86/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product52_false-unreach-call_false-termination.cil.c [2018-12-09 19:11:09,416 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_feb3f97e-2df4-4d82-adfa-c99510bceb86/bin-2019/utaipan/data/c847fc900/61d398da9f6f43b9979ccf0af4a7c377/FLAGcbb30741d [2018-12-09 19:11:09,830 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 19:11:09,830 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_feb3f97e-2df4-4d82-adfa-c99510bceb86/sv-benchmarks/c/product-lines/minepump_spec1_product52_false-unreach-call_false-termination.cil.c [2018-12-09 19:11:09,837 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_feb3f97e-2df4-4d82-adfa-c99510bceb86/bin-2019/utaipan/data/c847fc900/61d398da9f6f43b9979ccf0af4a7c377/FLAGcbb30741d [2018-12-09 19:11:09,845 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_feb3f97e-2df4-4d82-adfa-c99510bceb86/bin-2019/utaipan/data/c847fc900/61d398da9f6f43b9979ccf0af4a7c377 [2018-12-09 19:11:09,847 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 19:11:09,848 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 19:11:09,848 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 19:11:09,848 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 19:11:09,851 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 19:11:09,851 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:11:09" (1/1) ... [2018-12-09 19:11:09,853 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48c8a763 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:11:09, skipping insertion in model container [2018-12-09 19:11:09,853 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:11:09" (1/1) ... [2018-12-09 19:11:09,857 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 19:11:09,878 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 19:11:10,029 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:11:10,070 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 19:11:10,113 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:11:10,127 INFO L195 MainTranslator]: Completed translation [2018-12-09 19:11:10,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:11:10 WrapperNode [2018-12-09 19:11:10,128 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 19:11:10,128 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 19:11:10,128 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 19:11:10,128 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 19:11:10,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:11:10" (1/1) ... [2018-12-09 19:11:10,142 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:11:10" (1/1) ... [2018-12-09 19:11:10,147 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 19:11:10,147 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 19:11:10,148 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 19:11:10,148 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 19:11:10,153 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:11:10" (1/1) ... [2018-12-09 19:11:10,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:11:10" (1/1) ... [2018-12-09 19:11:10,155 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:11:10" (1/1) ... [2018-12-09 19:11:10,155 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:11:10" (1/1) ... [2018-12-09 19:11:10,161 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:11:10" (1/1) ... [2018-12-09 19:11:10,165 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:11:10" (1/1) ... [2018-12-09 19:11:10,166 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:11:10" (1/1) ... [2018-12-09 19:11:10,168 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 19:11:10,168 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 19:11:10,168 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 19:11:10,168 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 19:11:10,168 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:11:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_feb3f97e-2df4-4d82-adfa-c99510bceb86/bin-2019/utaipan/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 [2018-12-09 19:11:10,199 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-09 19:11:10,199 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-09 19:11:10,199 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 19:11:10,199 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 19:11:10,199 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2018-12-09 19:11:10,199 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2018-12-09 19:11:10,200 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-12-09 19:11:10,200 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-12-09 19:11:10,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 19:11:10,200 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-09 19:11:10,200 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-09 19:11:10,200 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-09 19:11:10,200 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-09 19:11:10,200 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-09 19:11:10,200 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-09 19:11:10,200 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-09 19:11:10,200 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-09 19:11:10,200 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-09 19:11:10,200 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-09 19:11:10,200 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-12-09 19:11:10,201 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-12-09 19:11:10,201 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-09 19:11:10,201 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-09 19:11:10,201 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-09 19:11:10,201 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-09 19:11:10,201 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-09 19:11:10,201 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-09 19:11:10,201 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-09 19:11:10,201 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-09 19:11:10,201 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-09 19:11:10,201 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-09 19:11:10,201 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-09 19:11:10,201 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-09 19:11:10,201 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2018-12-09 19:11:10,201 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2018-12-09 19:11:10,201 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-12-09 19:11:10,202 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-12-09 19:11:10,202 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-09 19:11:10,202 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-09 19:11:10,202 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-09 19:11:10,202 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-09 19:11:10,202 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-09 19:11:10,202 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-09 19:11:10,202 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-09 19:11:10,202 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-09 19:11:10,202 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-09 19:11:10,202 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-09 19:11:10,202 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-09 19:11:10,202 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-09 19:11:10,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-09 19:11:10,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 19:11:10,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 19:11:10,203 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-09 19:11:10,203 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-09 19:11:10,203 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-09 19:11:10,203 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-09 19:11:10,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 19:11:10,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 19:11:10,203 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2018-12-09 19:11:10,203 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2018-12-09 19:11:10,484 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 19:11:10,485 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-09 19:11:10,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:11:10 BoogieIcfgContainer [2018-12-09 19:11:10,485 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 19:11:10,486 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 19:11:10,486 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 19:11:10,488 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 19:11:10,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:11:09" (1/3) ... [2018-12-09 19:11:10,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f3e58b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:11:10, skipping insertion in model container [2018-12-09 19:11:10,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:11:10" (2/3) ... [2018-12-09 19:11:10,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f3e58b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:11:10, skipping insertion in model container [2018-12-09 19:11:10,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:11:10" (3/3) ... [2018-12-09 19:11:10,491 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product52_false-unreach-call_false-termination.cil.c [2018-12-09 19:11:10,499 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 19:11:10,504 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 19:11:10,515 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 19:11:10,533 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 19:11:10,533 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 19:11:10,533 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 19:11:10,533 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 19:11:10,533 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 19:11:10,533 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 19:11:10,533 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 19:11:10,533 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 19:11:10,545 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states. [2018-12-09 19:11:10,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-09 19:11:10,551 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:11:10,552 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] [2018-12-09 19:11:10,553 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:11:10,556 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:11:10,556 INFO L82 PathProgramCache]: Analyzing trace with hash -1479039679, now seen corresponding path program 1 times [2018-12-09 19:11:10,557 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:11:10,585 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:11:10,585 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:11:10,585 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:11:10,585 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:11:10,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:11:10,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:11:10,704 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:11:10,704 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 19:11:10,704 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:11:10,707 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 19:11:10,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 19:11:10,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 19:11:10,716 INFO L87 Difference]: Start difference. First operand 151 states. Second operand 2 states. [2018-12-09 19:11:10,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:11:10,739 INFO L93 Difference]: Finished difference Result 276 states and 341 transitions. [2018-12-09 19:11:10,739 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 19:11:10,740 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-09 19:11:10,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:11:10,747 INFO L225 Difference]: With dead ends: 276 [2018-12-09 19:11:10,747 INFO L226 Difference]: Without dead ends: 138 [2018-12-09 19:11:10,749 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 [2018-12-09 19:11:10,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2018-12-09 19:11:10,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2018-12-09 19:11:10,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2018-12-09 19:11:10,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 162 transitions. [2018-12-09 19:11:10,779 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 162 transitions. Word has length 46 [2018-12-09 19:11:10,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:11:10,779 INFO L480 AbstractCegarLoop]: Abstraction has 138 states and 162 transitions. [2018-12-09 19:11:10,779 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 19:11:10,779 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 162 transitions. [2018-12-09 19:11:10,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-09 19:11:10,781 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:11:10,781 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] [2018-12-09 19:11:10,781 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:11:10,782 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:11:10,782 INFO L82 PathProgramCache]: Analyzing trace with hash 1026873769, now seen corresponding path program 1 times [2018-12-09 19:11:10,782 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:11:10,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:11:10,783 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:11:10,783 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:11:10,783 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:11:10,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:11:10,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:11:10,829 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:11:10,830 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 19:11:10,830 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:11:10,831 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 19:11:10,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 19:11:10,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 19:11:10,832 INFO L87 Difference]: Start difference. First operand 138 states and 162 transitions. Second operand 3 states. [2018-12-09 19:11:10,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:11:10,850 INFO L93 Difference]: Finished difference Result 215 states and 251 transitions. [2018-12-09 19:11:10,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 19:11:10,850 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-09 19:11:10,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:11:10,852 INFO L225 Difference]: With dead ends: 215 [2018-12-09 19:11:10,852 INFO L226 Difference]: Without dead ends: 129 [2018-12-09 19:11:10,853 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 [2018-12-09 19:11:10,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2018-12-09 19:11:10,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2018-12-09 19:11:10,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2018-12-09 19:11:10,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 150 transitions. [2018-12-09 19:11:10,863 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 150 transitions. Word has length 47 [2018-12-09 19:11:10,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:11:10,864 INFO L480 AbstractCegarLoop]: Abstraction has 129 states and 150 transitions. [2018-12-09 19:11:10,864 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 19:11:10,864 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 150 transitions. [2018-12-09 19:11:10,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-12-09 19:11:10,865 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:11:10,865 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:11:10,865 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:11:10,865 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:11:10,865 INFO L82 PathProgramCache]: Analyzing trace with hash -526396278, now seen corresponding path program 1 times [2018-12-09 19:11:10,865 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:11:10,866 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:11:10,866 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:11:10,866 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:11:10,866 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:11:10,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:11:10,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:11:10,930 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:11:10,930 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 19:11:10,930 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:11:10,930 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 19:11:10,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 19:11:10,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-09 19:11:10,931 INFO L87 Difference]: Start difference. First operand 129 states and 150 transitions. Second operand 7 states. [2018-12-09 19:11:11,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:11:11,170 INFO L93 Difference]: Finished difference Result 389 states and 470 transitions. [2018-12-09 19:11:11,170 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 19:11:11,171 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2018-12-09 19:11:11,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:11:11,172 INFO L225 Difference]: With dead ends: 389 [2018-12-09 19:11:11,172 INFO L226 Difference]: Without dead ends: 284 [2018-12-09 19:11:11,173 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-09 19:11:11,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2018-12-09 19:11:11,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 272. [2018-12-09 19:11:11,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2018-12-09 19:11:11,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 328 transitions. [2018-12-09 19:11:11,192 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 328 transitions. Word has length 52 [2018-12-09 19:11:11,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:11:11,193 INFO L480 AbstractCegarLoop]: Abstraction has 272 states and 328 transitions. [2018-12-09 19:11:11,193 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 19:11:11,193 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 328 transitions. [2018-12-09 19:11:11,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-12-09 19:11:11,194 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:11:11,194 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:11:11,194 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:11:11,194 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:11:11,195 INFO L82 PathProgramCache]: Analyzing trace with hash -1748858854, now seen corresponding path program 1 times [2018-12-09 19:11:11,195 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:11:11,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:11:11,195 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:11:11,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:11:11,195 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:11:11,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:11:11,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:11:11,256 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:11:11,256 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 19:11:11,256 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:11:11,256 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 19:11:11,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 19:11:11,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 19:11:11,257 INFO L87 Difference]: Start difference. First operand 272 states and 328 transitions. Second operand 6 states. [2018-12-09 19:11:11,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:11:11,397 INFO L93 Difference]: Finished difference Result 753 states and 932 transitions. [2018-12-09 19:11:11,397 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 19:11:11,397 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2018-12-09 19:11:11,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:11:11,400 INFO L225 Difference]: With dead ends: 753 [2018-12-09 19:11:11,401 INFO L226 Difference]: Without dead ends: 505 [2018-12-09 19:11:11,402 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 [2018-12-09 19:11:11,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2018-12-09 19:11:11,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 499. [2018-12-09 19:11:11,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 499 states. [2018-12-09 19:11:11,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 606 transitions. [2018-12-09 19:11:11,433 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 606 transitions. Word has length 57 [2018-12-09 19:11:11,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:11:11,433 INFO L480 AbstractCegarLoop]: Abstraction has 499 states and 606 transitions. [2018-12-09 19:11:11,433 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 19:11:11,434 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 606 transitions. [2018-12-09 19:11:11,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-12-09 19:11:11,436 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:11:11,436 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:11:11,436 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:11:11,436 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:11:11,436 INFO L82 PathProgramCache]: Analyzing trace with hash -926237474, now seen corresponding path program 1 times [2018-12-09 19:11:11,436 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:11:11,437 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:11:11,437 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:11:11,437 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:11:11,437 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:11:11,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:11:11,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:11:11,508 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:11:11,508 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 19:11:11,508 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:11:11,509 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 19:11:11,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 19:11:11,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 19:11:11,509 INFO L87 Difference]: Start difference. First operand 499 states and 606 transitions. Second operand 7 states. [2018-12-09 19:11:11,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:11:11,885 INFO L93 Difference]: Finished difference Result 1302 states and 1699 transitions. [2018-12-09 19:11:11,885 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-09 19:11:11,885 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 61 [2018-12-09 19:11:11,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:11:11,888 INFO L225 Difference]: With dead ends: 1302 [2018-12-09 19:11:11,888 INFO L226 Difference]: Without dead ends: 827 [2018-12-09 19:11:11,889 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-12-09 19:11:11,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 827 states. [2018-12-09 19:11:11,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 827 to 729. [2018-12-09 19:11:11,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 729 states. [2018-12-09 19:11:11,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 729 states to 729 states and 883 transitions. [2018-12-09 19:11:11,919 INFO L78 Accepts]: Start accepts. Automaton has 729 states and 883 transitions. Word has length 61 [2018-12-09 19:11:11,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:11:11,920 INFO L480 AbstractCegarLoop]: Abstraction has 729 states and 883 transitions. [2018-12-09 19:11:11,920 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 19:11:11,920 INFO L276 IsEmpty]: Start isEmpty. Operand 729 states and 883 transitions. [2018-12-09 19:11:11,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-12-09 19:11:11,922 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:11:11,922 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:11:11,922 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:11:11,922 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:11:11,922 INFO L82 PathProgramCache]: Analyzing trace with hash -2024865854, now seen corresponding path program 1 times [2018-12-09 19:11:11,922 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:11:11,923 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:11:11,923 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:11:11,923 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:11:11,923 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:11:11,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:11:11,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:11:11,972 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:11:11,972 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 19:11:11,972 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:11:11,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 19:11:11,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 19:11:11,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 19:11:11,973 INFO L87 Difference]: Start difference. First operand 729 states and 883 transitions. Second operand 6 states. [2018-12-09 19:11:12,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:11:12,005 INFO L93 Difference]: Finished difference Result 1454 states and 1792 transitions. [2018-12-09 19:11:12,005 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 19:11:12,005 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 84 [2018-12-09 19:11:12,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:11:12,007 INFO L225 Difference]: With dead ends: 1454 [2018-12-09 19:11:12,008 INFO L226 Difference]: Without dead ends: 749 [2018-12-09 19:11:12,009 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 [2018-12-09 19:11:12,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2018-12-09 19:11:12,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 749. [2018-12-09 19:11:12,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 749 states. [2018-12-09 19:11:12,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 903 transitions. [2018-12-09 19:11:12,032 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 903 transitions. Word has length 84 [2018-12-09 19:11:12,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:11:12,033 INFO L480 AbstractCegarLoop]: Abstraction has 749 states and 903 transitions. [2018-12-09 19:11:12,033 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 19:11:12,033 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 903 transitions. [2018-12-09 19:11:12,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-12-09 19:11:12,034 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:11:12,034 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:11:12,035 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:11:12,035 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:11:12,035 INFO L82 PathProgramCache]: Analyzing trace with hash -2002233600, now seen corresponding path program 1 times [2018-12-09 19:11:12,035 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:11:12,036 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:11:12,036 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:11:12,036 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:11:12,036 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:11:12,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:11:12,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:11:12,104 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:11:12,104 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-09 19:11:12,104 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:11:12,104 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 19:11:12,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 19:11:12,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-09 19:11:12,104 INFO L87 Difference]: Start difference. First operand 749 states and 903 transitions. Second operand 8 states. [2018-12-09 19:11:12,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:11:12,137 INFO L93 Difference]: Finished difference Result 1502 states and 1870 transitions. [2018-12-09 19:11:12,137 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 19:11:12,137 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 84 [2018-12-09 19:11:12,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:11:12,139 INFO L225 Difference]: With dead ends: 1502 [2018-12-09 19:11:12,139 INFO L226 Difference]: Without dead ends: 777 [2018-12-09 19:11:12,140 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 [2018-12-09 19:11:12,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2018-12-09 19:11:12,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 765. [2018-12-09 19:11:12,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 765 states. [2018-12-09 19:11:12,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 919 transitions. [2018-12-09 19:11:12,162 INFO L78 Accepts]: Start accepts. Automaton has 765 states and 919 transitions. Word has length 84 [2018-12-09 19:11:12,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:11:12,162 INFO L480 AbstractCegarLoop]: Abstraction has 765 states and 919 transitions. [2018-12-09 19:11:12,162 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 19:11:12,162 INFO L276 IsEmpty]: Start isEmpty. Operand 765 states and 919 transitions. [2018-12-09 19:11:12,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-12-09 19:11:12,163 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:11:12,163 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:11:12,164 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:11:12,164 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:11:12,164 INFO L82 PathProgramCache]: Analyzing trace with hash -976741601, now seen corresponding path program 1 times [2018-12-09 19:11:12,164 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:11:12,164 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:11:12,164 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:11:12,165 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:11:12,165 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:11:12,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:11:12,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:11:12,218 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:11:12,218 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 19:11:12,218 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:11:12,218 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 19:11:12,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 19:11:12,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 19:11:12,219 INFO L87 Difference]: Start difference. First operand 765 states and 919 transitions. Second operand 4 states. [2018-12-09 19:11:12,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:11:12,382 INFO L93 Difference]: Finished difference Result 2491 states and 3138 transitions. [2018-12-09 19:11:12,383 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 19:11:12,383 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 84 [2018-12-09 19:11:12,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:11:12,387 INFO L225 Difference]: With dead ends: 2491 [2018-12-09 19:11:12,387 INFO L226 Difference]: Without dead ends: 1750 [2018-12-09 19:11:12,388 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 [2018-12-09 19:11:12,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1750 states. [2018-12-09 19:11:12,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1750 to 1719. [2018-12-09 19:11:12,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1719 states. [2018-12-09 19:11:12,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1719 states to 1719 states and 2115 transitions. [2018-12-09 19:11:12,446 INFO L78 Accepts]: Start accepts. Automaton has 1719 states and 2115 transitions. Word has length 84 [2018-12-09 19:11:12,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:11:12,446 INFO L480 AbstractCegarLoop]: Abstraction has 1719 states and 2115 transitions. [2018-12-09 19:11:12,447 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 19:11:12,447 INFO L276 IsEmpty]: Start isEmpty. Operand 1719 states and 2115 transitions. [2018-12-09 19:11:12,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-12-09 19:11:12,449 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:11:12,449 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:11:12,449 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:11:12,449 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:11:12,449 INFO L82 PathProgramCache]: Analyzing trace with hash -220659911, now seen corresponding path program 1 times [2018-12-09 19:11:12,449 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:11:12,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:11:12,450 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:11:12,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:11:12,450 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:11:12,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 19:11:12,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 19:11:12,525 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 19:11:12,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:11:12 BoogieIcfgContainer [2018-12-09 19:11:12,616 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 19:11:12,616 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 19:11:12,616 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 19:11:12,616 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 19:11:12,617 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:11:10" (3/4) ... [2018-12-09 19:11:12,618 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-09 19:11:12,700 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_feb3f97e-2df4-4d82-adfa-c99510bceb86/bin-2019/utaipan/witness.graphml [2018-12-09 19:11:12,700 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 19:11:12,701 INFO L168 Benchmark]: Toolchain (without parser) took 2853.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 948.1 MB in the beginning and 1.0 GB in the end (delta: -71.7 MB). Peak memory consumption was 86.1 MB. Max. memory is 11.5 GB. [2018-12-09 19:11:12,702 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:11:12,702 INFO L168 Benchmark]: CACSL2BoogieTranslator took 279.69 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -137.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. [2018-12-09 19:11:12,702 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.05 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. [2018-12-09 19:11:12,702 INFO L168 Benchmark]: Boogie Preprocessor took 20.24 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. [2018-12-09 19:11:12,702 INFO L168 Benchmark]: RCFGBuilder took 317.40 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: 47.6 MB). Peak memory consumption was 47.6 MB. Max. memory is 11.5 GB. [2018-12-09 19:11:12,703 INFO L168 Benchmark]: TraceAbstraction took 2130.09 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 61.3 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -14.8 MB). Peak memory consumption was 46.5 MB. Max. memory is 11.5 GB. [2018-12-09 19:11:12,703 INFO L168 Benchmark]: Witness Printer took 84.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 30.5 MB). Peak memory consumption was 30.5 MB. Max. memory is 11.5 GB. [2018-12-09 19:11:12,704 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 279.69 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -137.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.05 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 20.24 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 317.40 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: 47.6 MB). Peak memory consumption was 47.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2130.09 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 61.3 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -14.8 MB). Peak memory consumption was 46.5 MB. Max. memory is 11.5 GB. * Witness Printer took 84.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 30.5 MB). Peak memory consumption was 30.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 383]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L48] int waterLevel = 1; [L49] int methaneLevelCritical = 0; [L158] int pumpRunning = 0; [L159] int systemActive = 1; [L458] int cleanupTimeShifts = 4; [L752] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L534] int retValue_acc ; [L535] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L539] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L540] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L541] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L975] int retValue_acc ; [L978] retValue_acc = 1 [L979] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L541] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L541] tmp = valid_product() [L543] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L545] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L546] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L525] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L390] int splverifierCounter ; [L391] int tmp ; [L392] int tmp___0 ; [L393] int tmp___1 ; [L394] int tmp___2 ; [L397] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L399] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L401] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L407] tmp = __VERIFIER_nondet_int() [L409] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L411] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L66] COND TRUE waterLevel < 2 [L67] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L411] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L417] tmp___0 = __VERIFIER_nondet_int() [L419] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L421] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L78] COND FALSE !(\read(methaneLevelCritical)) [L81] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L421] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L427] tmp___2 = __VERIFIER_nondet_int() [L429] COND FALSE !(\read(tmp___2)) [L435] tmp___1 = __VERIFIER_nondet_int() [L437] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___1=0, tmp___2=0, waterLevel=2] [L446] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L166] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L173] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L175] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L221] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L224] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L239] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L195] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L198] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L200] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L318] int retValue_acc ; [L319] int tmp ; [L320] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L324] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L128] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L131] COND FALSE !(waterLevel < 2) [L135] retValue_acc = 0 [L136] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L324] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L324] tmp = isHighWaterSensorDry() [L326] COND FALSE !(\read(tmp)) [L329] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L331] retValue_acc = tmp___0 [L332] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L200] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L200] tmp = isHighWaterLevel() [L202] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L204] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L249] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L204] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L239] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L175] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L181] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L558] int tmp ; [L559] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L563] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L87] int retValue_acc ; [L90] retValue_acc = methaneLevelCritical [L91] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L563] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L563] tmp = isMethaneLevelCritical() [L565] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L567] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L273] int retValue_acc ; [L276] retValue_acc = pumpRunning [L277] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L567] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L567] tmp___0 = isPumpRunning() [L569] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L571] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L383] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 29 procedures, 151 locations, 1 error locations. UNSAFE Result, 2.0s OverallTime, 9 OverallIterations, 1 TraceHistogramMax, 1.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1376 SDtfs, 747 SDslu, 3289 SDs, 0 SdLazy, 918 SolverSat, 121 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1719occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 159 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 603 NumberOfCodeBlocks, 603 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 507 ConstructedInterpolants, 0 QuantifiedInterpolants, 56641 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...