./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product37_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_736e5b51-1936-4628-bc42-97ec75de1d0d/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_736e5b51-1936-4628-bc42-97ec75de1d0d/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_736e5b51-1936-4628-bc42-97ec75de1d0d/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_736e5b51-1936-4628-bc42-97ec75de1d0d/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product37_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_736e5b51-1936-4628-bc42-97ec75de1d0d/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_736e5b51-1936-4628-bc42-97ec75de1d0d/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6a5b3ee1add5adeacf75c411f0af51a190ac6f33 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 15:01:26,272 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 15:01:26,273 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 15:01:26,278 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 15:01:26,279 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 15:01:26,279 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 15:01:26,280 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 15:01:26,281 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 15:01:26,281 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 15:01:26,282 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 15:01:26,282 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 15:01:26,282 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 15:01:26,283 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 15:01:26,283 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 15:01:26,284 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 15:01:26,284 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 15:01:26,284 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 15:01:26,285 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 15:01:26,286 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 15:01:26,287 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 15:01:26,287 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 15:01:26,288 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 15:01:26,289 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 15:01:26,289 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 15:01:26,289 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 15:01:26,290 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 15:01:26,290 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 15:01:26,291 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 15:01:26,291 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 15:01:26,291 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 15:01:26,292 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 15:01:26,292 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 15:01:26,292 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 15:01:26,292 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 15:01:26,293 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 15:01:26,293 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 15:01:26,293 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_736e5b51-1936-4628-bc42-97ec75de1d0d/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-12-02 15:01:26,301 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 15:01:26,301 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 15:01:26,301 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 15:01:26,301 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 15:01:26,302 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 15:01:26,302 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-02 15:01:26,302 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-02 15:01:26,302 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-02 15:01:26,302 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-02 15:01:26,302 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-02 15:01:26,302 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-02 15:01:26,302 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 15:01:26,302 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 15:01:26,302 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-02 15:01:26,302 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 15:01:26,303 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 15:01:26,303 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 15:01:26,303 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-02 15:01:26,303 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-02 15:01:26,303 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-02 15:01:26,303 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 15:01:26,303 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 15:01:26,303 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-02 15:01:26,303 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 15:01:26,303 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-02 15:01:26,303 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 15:01:26,304 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 15:01:26,304 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-02 15:01:26,304 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 15:01:26,304 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-02 15:01:26,304 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-02 15:01:26,304 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-02 15:01:26,305 INFO L133 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_736e5b51-1936-4628-bc42-97ec75de1d0d/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(F end) ) 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 -> 6a5b3ee1add5adeacf75c411f0af51a190ac6f33 [2018-12-02 15:01:26,322 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 15:01:26,331 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 15:01:26,333 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 15:01:26,334 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 15:01:26,335 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 15:01:26,335 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_736e5b51-1936-4628-bc42-97ec75de1d0d/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product37_true-unreach-call_false-termination.cil.c [2018-12-02 15:01:26,376 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_736e5b51-1936-4628-bc42-97ec75de1d0d/bin-2019/uautomizer/data/ad7112ebc/347541fed6884a4194c21f757ba78d59/FLAG25897f625 [2018-12-02 15:01:26,834 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 15:01:26,834 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_736e5b51-1936-4628-bc42-97ec75de1d0d/sv-benchmarks/c/product-lines/minepump_spec5_product37_true-unreach-call_false-termination.cil.c [2018-12-02 15:01:26,841 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_736e5b51-1936-4628-bc42-97ec75de1d0d/bin-2019/uautomizer/data/ad7112ebc/347541fed6884a4194c21f757ba78d59/FLAG25897f625 [2018-12-02 15:01:26,849 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_736e5b51-1936-4628-bc42-97ec75de1d0d/bin-2019/uautomizer/data/ad7112ebc/347541fed6884a4194c21f757ba78d59 [2018-12-02 15:01:26,851 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 15:01:26,852 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 15:01:26,853 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 15:01:26,853 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 15:01:26,855 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 15:01:26,855 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:01:26" (1/1) ... [2018-12-02 15:01:26,857 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 02.12 03:01:26, skipping insertion in model container [2018-12-02 15:01:26,857 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:01:26" (1/1) ... [2018-12-02 15:01:26,861 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 15:01:26,883 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 15:01:27,028 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 15:01:27,066 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 15:01:27,111 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 15:01:27,126 INFO L195 MainTranslator]: Completed translation [2018-12-02 15:01:27,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:27 WrapperNode [2018-12-02 15:01:27,126 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 15:01:27,126 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 15:01:27,126 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 15:01:27,127 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 15:01:27,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:27" (1/1) ... [2018-12-02 15:01:27,141 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:27" (1/1) ... [2018-12-02 15:01:27,162 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 15:01:27,162 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 15:01:27,162 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 15:01:27,162 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 15:01:27,168 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:27" (1/1) ... [2018-12-02 15:01:27,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:27" (1/1) ... [2018-12-02 15:01:27,170 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:27" (1/1) ... [2018-12-02 15:01:27,170 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:27" (1/1) ... [2018-12-02 15:01:27,175 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:27" (1/1) ... [2018-12-02 15:01:27,180 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:27" (1/1) ... [2018-12-02 15:01:27,181 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:27" (1/1) ... [2018-12-02 15:01:27,183 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 15:01:27,184 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 15:01:27,184 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 15:01:27,184 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 15:01:27,184 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_736e5b51-1936-4628-bc42-97ec75de1d0d/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 15:01:27,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 15:01:27,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-02 15:01:27,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 15:01:27,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 15:01:27,534 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 15:01:27,534 INFO L280 CfgBuilder]: Removed 170 assue(true) statements. [2018-12-02 15:01:27,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:01:27 BoogieIcfgContainer [2018-12-02 15:01:27,534 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 15:01:27,535 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-02 15:01:27,535 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-02 15:01:27,537 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-02 15:01:27,537 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-02 15:01:27,537 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.12 03:01:26" (1/3) ... [2018-12-02 15:01:27,538 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2c1e73c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 03:01:27, skipping insertion in model container [2018-12-02 15:01:27,538 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-02 15:01:27,538 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:27" (2/3) ... [2018-12-02 15:01:27,538 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2c1e73c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 03:01:27, skipping insertion in model container [2018-12-02 15:01:27,539 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-02 15:01:27,539 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:01:27" (3/3) ... [2018-12-02 15:01:27,540 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product37_true-unreach-call_false-termination.cil.c [2018-12-02 15:01:27,571 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 15:01:27,571 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-02 15:01:27,571 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-02 15:01:27,572 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-02 15:01:27,572 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 15:01:27,572 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 15:01:27,572 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-02 15:01:27,572 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 15:01:27,572 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-02 15:01:27,582 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 117 states. [2018-12-02 15:01:27,598 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2018-12-02 15:01:27,598 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 15:01:27,598 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 15:01:27,603 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-02 15:01:27,603 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 15:01:27,603 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-02 15:01:27,603 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 117 states. [2018-12-02 15:01:27,607 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2018-12-02 15:01:27,607 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 15:01:27,607 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 15:01:27,607 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-02 15:01:27,607 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 15:01:27,611 INFO L794 eck$LassoCheckResult]: Stem: 86#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string1.base, #t~string1.offset := #Ultimate.alloc(13);call #t~string3.base, #t~string3.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string18.base, #t~string18.offset := #Ultimate.alloc(13);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string24.base, #t~string24.offset, 1);call write~init~int(80, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(117, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(109, #t~string24.base, 3 + #t~string24.offset, 1);call write~init~int(112, #t~string24.base, 4 + #t~string24.offset, 1);call write~init~int(58, #t~string24.base, 5 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 6 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string30.base, #t~string30.offset, 1);call write~init~int(32, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string32.base, #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 1 + #t~string32.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string57.base, #t~string57.offset := #Ultimate.alloc(30);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(9);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(21);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(30);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(9);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(21);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(30);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(9);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(25);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(30);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(9);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(25); 7#L-1true havoc main_#res;havoc main_#t~ret13, main_~retValue_acc~3, main_~tmp~1;havoc main_~retValue_acc~3;havoc main_~tmp~1; 9#L574true havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 18#L582true main_#t~ret13 := valid_product_#res;main_~tmp~1 := main_#t~ret13;havoc main_#t~ret13; 78#L281true assume 0 != main_~tmp~1; 82#L253true ~switchedOnBeforeTS~0 := 0; 69#L149true havoc test_#t~nondet34, test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 107#L170-1true [2018-12-02 15:01:27,611 INFO L796 eck$LassoCheckResult]: Loop: 107#L170-1true assume !false; 88#L498true assume test_~splverifierCounter~0 < 4; 33#L499true test_~tmp~5 := test_#t~nondet34;havoc test_#t~nondet34; 52#L507true assume !(0 != test_~tmp~5); 54#L507-1true test_~tmp___0~2 := test_#t~nondet35;havoc test_#t~nondet35; 111#L517true assume !(0 != test_~tmp___0~2); 94#L517-1true test_~tmp___2~0 := test_#t~nondet36;havoc test_#t~nondet36; 22#L527true assume 0 != test_~tmp___2~0; 117#L533-2true havoc __utac_acc__Specification5_spec__2_#t~ret10;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 62#L427true __utac_acc__Specification5_spec__2_#t~ret10 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret10;havoc __utac_acc__Specification5_spec__2_#t~ret10; 115#L159true assume !(0 != ~pumpRunning~0); 109#L316true assume !(0 != ~systemActive~0); 26#L323true havoc __utac_acc__Specification5_spec__3_#t~ret11, __utac_acc__Specification5_spec__3_#t~ret12, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 25#L122true __utac_acc__Specification5_spec__3_#t~ret11 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret11;havoc __utac_acc__Specification5_spec__3_#t~ret11; 116#L170true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 107#L170-1true [2018-12-02 15:01:27,614 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:01:27,614 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2018-12-02 15:01:27,616 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 15:01:27,616 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 15:01:27,643 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:01:27,643 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:01:27,643 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:01:27,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 15:01:27,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 15:01:27,734 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:01:27,735 INFO L82 PathProgramCache]: Analyzing trace with hash 95890028, now seen corresponding path program 1 times [2018-12-02 15:01:27,735 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 15:01:27,735 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 15:01:27,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:01:27,735 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:01:27,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:01:27,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 15:01:27,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 15:01:27,744 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:01:27,744 INFO L82 PathProgramCache]: Analyzing trace with hash 2029915238, now seen corresponding path program 1 times [2018-12-02 15:01:27,744 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 15:01:27,744 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 15:01:27,745 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:01:27,745 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:01:27,745 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:01:27,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:01:27,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:01:27,828 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 15:01:27,828 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-02 15:01:27,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 15:01:27,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-12-02 15:01:27,887 INFO L87 Difference]: Start difference. First operand 117 states. Second operand 6 states. [2018-12-02 15:01:27,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 15:01:27,942 INFO L93 Difference]: Finished difference Result 117 states and 166 transitions. [2018-12-02 15:01:27,942 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-02 15:01:27,944 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 117 states and 166 transitions. [2018-12-02 15:01:27,946 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2018-12-02 15:01:27,949 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 117 states to 110 states and 159 transitions. [2018-12-02 15:01:27,950 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 110 [2018-12-02 15:01:27,950 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 110 [2018-12-02 15:01:27,950 INFO L73 IsDeterministic]: Start isDeterministic. Operand 110 states and 159 transitions. [2018-12-02 15:01:27,951 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-02 15:01:27,951 INFO L705 BuchiCegarLoop]: Abstraction has 110 states and 159 transitions. [2018-12-02 15:01:27,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states and 159 transitions. [2018-12-02 15:01:27,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2018-12-02 15:01:27,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2018-12-02 15:01:27,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 159 transitions. [2018-12-02 15:01:27,972 INFO L728 BuchiCegarLoop]: Abstraction has 110 states and 159 transitions. [2018-12-02 15:01:27,972 INFO L608 BuchiCegarLoop]: Abstraction has 110 states and 159 transitions. [2018-12-02 15:01:27,972 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-02 15:01:27,972 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 110 states and 159 transitions. [2018-12-02 15:01:27,973 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2018-12-02 15:01:27,973 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 15:01:27,973 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 15:01:27,974 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-02 15:01:27,974 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 15:01:27,974 INFO L794 eck$LassoCheckResult]: Stem: 350#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string1.base, #t~string1.offset := #Ultimate.alloc(13);call #t~string3.base, #t~string3.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string18.base, #t~string18.offset := #Ultimate.alloc(13);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string24.base, #t~string24.offset, 1);call write~init~int(80, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(117, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(109, #t~string24.base, 3 + #t~string24.offset, 1);call write~init~int(112, #t~string24.base, 4 + #t~string24.offset, 1);call write~init~int(58, #t~string24.base, 5 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 6 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string30.base, #t~string30.offset, 1);call write~init~int(32, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string32.base, #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 1 + #t~string32.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string57.base, #t~string57.offset := #Ultimate.alloc(30);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(9);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(21);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(30);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(9);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(21);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(30);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(9);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(25);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(30);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(9);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(25); 259#L-1 havoc main_#res;havoc main_#t~ret13, main_~retValue_acc~3, main_~tmp~1;havoc main_~retValue_acc~3;havoc main_~tmp~1; 260#L574 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 261#L582 main_#t~ret13 := valid_product_#res;main_~tmp~1 := main_#t~ret13;havoc main_#t~ret13; 279#L281 assume 0 != main_~tmp~1; 346#L253 ~switchedOnBeforeTS~0 := 0; 342#L149 havoc test_#t~nondet34, test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 255#L170-1 [2018-12-02 15:01:27,974 INFO L796 eck$LassoCheckResult]: Loop: 255#L170-1 assume !false; 351#L498 assume test_~splverifierCounter~0 < 4; 298#L499 test_~tmp~5 := test_#t~nondet34;havoc test_#t~nondet34; 299#L507 assume !(0 != test_~tmp~5); 265#L507-1 test_~tmp___0~2 := test_#t~nondet35;havoc test_#t~nondet35; 322#L517 assume !(0 != test_~tmp___0~2); 354#L517-1 test_~tmp___2~0 := test_#t~nondet36;havoc test_#t~nondet36; 285#L527 assume 0 != test_~tmp___2~0; 258#L533-2 havoc __utac_acc__Specification5_spec__2_#t~ret10;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 333#L427 __utac_acc__Specification5_spec__2_#t~ret10 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret10;havoc __utac_acc__Specification5_spec__2_#t~ret10; 334#L159 assume !(0 != ~pumpRunning~0); 309#L316 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret15, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 357#L374 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret14, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 281#L348-1 assume !(0 == ~pumpRunning~0); 277#L323 havoc __utac_acc__Specification5_spec__3_#t~ret11, __utac_acc__Specification5_spec__3_#t~ret12, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 289#L122 __utac_acc__Specification5_spec__3_#t~ret11 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret11;havoc __utac_acc__Specification5_spec__3_#t~ret11; 290#L170 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 255#L170-1 [2018-12-02 15:01:27,974 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:01:27,974 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2018-12-02 15:01:27,974 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 15:01:27,974 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 15:01:27,975 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:01:27,975 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:01:27,975 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:01:27,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 15:01:27,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 15:01:28,003 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:01:28,003 INFO L82 PathProgramCache]: Analyzing trace with hash -484283837, now seen corresponding path program 1 times [2018-12-02 15:01:28,003 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 15:01:28,003 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 15:01:28,004 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:01:28,004 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 15:01:28,004 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:01:28,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:01:28,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:01:28,014 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 15:01:28,014 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 15:01:28,015 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-12-02 15:01:28,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 15:01:28,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 15:01:28,015 INFO L87 Difference]: Start difference. First operand 110 states and 159 transitions. cyclomatic complexity: 51 Second operand 3 states. [2018-12-02 15:01:28,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 15:01:28,076 INFO L93 Difference]: Finished difference Result 159 states and 218 transitions. [2018-12-02 15:01:28,076 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 15:01:28,077 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 159 states and 218 transitions. [2018-12-02 15:01:28,078 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 110 [2018-12-02 15:01:28,079 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 159 states to 159 states and 218 transitions. [2018-12-02 15:01:28,079 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 159 [2018-12-02 15:01:28,080 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 159 [2018-12-02 15:01:28,080 INFO L73 IsDeterministic]: Start isDeterministic. Operand 159 states and 218 transitions. [2018-12-02 15:01:28,080 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-02 15:01:28,081 INFO L705 BuchiCegarLoop]: Abstraction has 159 states and 218 transitions. [2018-12-02 15:01:28,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states and 218 transitions. [2018-12-02 15:01:28,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2018-12-02 15:01:28,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2018-12-02 15:01:28,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 218 transitions. [2018-12-02 15:01:28,086 INFO L728 BuchiCegarLoop]: Abstraction has 159 states and 218 transitions. [2018-12-02 15:01:28,086 INFO L608 BuchiCegarLoop]: Abstraction has 159 states and 218 transitions. [2018-12-02 15:01:28,086 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-12-02 15:01:28,086 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 159 states and 218 transitions. [2018-12-02 15:01:28,087 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 110 [2018-12-02 15:01:28,087 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 15:01:28,087 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 15:01:28,088 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-02 15:01:28,088 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 15:01:28,088 INFO L794 eck$LassoCheckResult]: Stem: 630#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string1.base, #t~string1.offset := #Ultimate.alloc(13);call #t~string3.base, #t~string3.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string18.base, #t~string18.offset := #Ultimate.alloc(13);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string24.base, #t~string24.offset, 1);call write~init~int(80, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(117, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(109, #t~string24.base, 3 + #t~string24.offset, 1);call write~init~int(112, #t~string24.base, 4 + #t~string24.offset, 1);call write~init~int(58, #t~string24.base, 5 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 6 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string30.base, #t~string30.offset, 1);call write~init~int(32, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string32.base, #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 1 + #t~string32.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string57.base, #t~string57.offset := #Ultimate.alloc(30);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(9);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(21);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(30);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(9);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(21);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(30);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(9);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(25);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(30);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(9);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(25); 534#L-1 havoc main_#res;havoc main_#t~ret13, main_~retValue_acc~3, main_~tmp~1;havoc main_~retValue_acc~3;havoc main_~tmp~1; 535#L574 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 536#L582 main_#t~ret13 := valid_product_#res;main_~tmp~1 := main_#t~ret13;havoc main_#t~ret13; 553#L281 assume 0 != main_~tmp~1; 627#L253 ~switchedOnBeforeTS~0 := 0; 623#L149 havoc test_#t~nondet34, test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 530#L170-1 [2018-12-02 15:01:28,088 INFO L796 eck$LassoCheckResult]: Loop: 530#L170-1 assume !false; 631#L498 assume test_~splverifierCounter~0 < 4; 576#L499 test_~tmp~5 := test_#t~nondet34;havoc test_#t~nondet34; 577#L507 assume !(0 != test_~tmp~5); 540#L507-1 test_~tmp___0~2 := test_#t~nondet35;havoc test_#t~nondet35; 603#L517 assume !(0 != test_~tmp___0~2); 634#L517-1 test_~tmp___2~0 := test_#t~nondet36;havoc test_#t~nondet36; 560#L527 assume 0 != test_~tmp___2~0; 533#L533-2 havoc __utac_acc__Specification5_spec__2_#t~ret10;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 614#L427 __utac_acc__Specification5_spec__2_#t~ret10 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret10;havoc __utac_acc__Specification5_spec__2_#t~ret10; 615#L159 assume !(0 != ~pumpRunning~0); 644#L316 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret15, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 637#L374 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret14, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 555#L348-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret33, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 556#L130-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 596#L135-1 isHighWaterLevel_#t~ret33 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret33;havoc isHighWaterLevel_#t~ret33; 606#L476-3 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~1 := 0; 628#L476-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 612#L482-1 processEnvironment__wrappee__highWaterSensor_#t~ret14 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~2 := processEnvironment__wrappee__highWaterSensor_#t~ret14;havoc processEnvironment__wrappee__highWaterSensor_#t~ret14; 613#L352-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2); 567#L323 havoc __utac_acc__Specification5_spec__3_#t~ret11, __utac_acc__Specification5_spec__3_#t~ret12, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 563#L122 __utac_acc__Specification5_spec__3_#t~ret11 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret11;havoc __utac_acc__Specification5_spec__3_#t~ret11; 564#L170 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 530#L170-1 [2018-12-02 15:01:28,088 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:01:28,088 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2018-12-02 15:01:28,088 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 15:01:28,089 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 15:01:28,089 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:01:28,089 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:01:28,089 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:01:28,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 15:01:28,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 15:01:28,113 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:01:28,113 INFO L82 PathProgramCache]: Analyzing trace with hash 459590415, now seen corresponding path program 1 times [2018-12-02 15:01:28,113 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 15:01:28,114 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 15:01:28,114 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:01:28,114 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 15:01:28,114 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:01:28,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:01:28,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:01:28,151 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 15:01:28,152 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-02 15:01:28,152 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-12-02 15:01:28,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-02 15:01:28,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-02 15:01:28,153 INFO L87 Difference]: Start difference. First operand 159 states and 218 transitions. cyclomatic complexity: 61 Second operand 5 states. [2018-12-02 15:01:28,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 15:01:28,297 INFO L93 Difference]: Finished difference Result 664 states and 921 transitions. [2018-12-02 15:01:28,298 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 15:01:28,298 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 664 states and 921 transitions. [2018-12-02 15:01:28,301 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 457 [2018-12-02 15:01:28,304 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 664 states to 664 states and 921 transitions. [2018-12-02 15:01:28,304 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 664 [2018-12-02 15:01:28,305 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 664 [2018-12-02 15:01:28,305 INFO L73 IsDeterministic]: Start isDeterministic. Operand 664 states and 921 transitions. [2018-12-02 15:01:28,307 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-02 15:01:28,307 INFO L705 BuchiCegarLoop]: Abstraction has 664 states and 921 transitions. [2018-12-02 15:01:28,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states and 921 transitions. [2018-12-02 15:01:28,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 308. [2018-12-02 15:01:28,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 308 states. [2018-12-02 15:01:28,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 417 transitions. [2018-12-02 15:01:28,319 INFO L728 BuchiCegarLoop]: Abstraction has 308 states and 417 transitions. [2018-12-02 15:01:28,319 INFO L608 BuchiCegarLoop]: Abstraction has 308 states and 417 transitions. [2018-12-02 15:01:28,319 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-12-02 15:01:28,319 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 308 states and 417 transitions. [2018-12-02 15:01:28,321 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 218 [2018-12-02 15:01:28,321 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 15:01:28,322 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 15:01:28,322 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-02 15:01:28,322 INFO L867 BuchiCegarLoop]: Counterexample loop 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] [2018-12-02 15:01:28,322 INFO L794 eck$LassoCheckResult]: Stem: 1483#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string1.base, #t~string1.offset := #Ultimate.alloc(13);call #t~string3.base, #t~string3.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string18.base, #t~string18.offset := #Ultimate.alloc(13);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string24.base, #t~string24.offset, 1);call write~init~int(80, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(117, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(109, #t~string24.base, 3 + #t~string24.offset, 1);call write~init~int(112, #t~string24.base, 4 + #t~string24.offset, 1);call write~init~int(58, #t~string24.base, 5 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 6 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string30.base, #t~string30.offset, 1);call write~init~int(32, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string32.base, #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 1 + #t~string32.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string57.base, #t~string57.offset := #Ultimate.alloc(30);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(9);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(21);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(30);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(9);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(21);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(30);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(9);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(25);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(30);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(9);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(25); 1376#L-1 havoc main_#res;havoc main_#t~ret13, main_~retValue_acc~3, main_~tmp~1;havoc main_~retValue_acc~3;havoc main_~tmp~1; 1377#L574 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 1378#L582 main_#t~ret13 := valid_product_#res;main_~tmp~1 := main_#t~ret13;havoc main_#t~ret13; 1396#L281 assume 0 != main_~tmp~1; 1478#L253 ~switchedOnBeforeTS~0 := 0; 1473#L149 havoc test_#t~nondet34, test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1474#L170-1 [2018-12-02 15:01:28,323 INFO L796 eck$LassoCheckResult]: Loop: 1474#L170-1 assume !false; 1597#L498 assume test_~splverifierCounter~0 < 4; 1598#L499 test_~tmp~5 := test_#t~nondet34;havoc test_#t~nondet34; 1667#L507 assume !(0 != test_~tmp~5); 1664#L507-1 test_~tmp___0~2 := test_#t~nondet35;havoc test_#t~nondet35; 1663#L517 assume !(0 != test_~tmp___0~2); 1661#L517-1 test_~tmp___2~0 := test_#t~nondet36;havoc test_#t~nondet36; 1660#L527 assume 0 != test_~tmp___2~0; 1658#L533-2 havoc __utac_acc__Specification5_spec__2_#t~ret10;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 1657#L427 __utac_acc__Specification5_spec__2_#t~ret10 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret10;havoc __utac_acc__Specification5_spec__2_#t~ret10; 1646#L159 assume !(0 != ~pumpRunning~0); 1644#L316 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret15, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 1641#L374 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret14, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 1640#L348-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret33, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 1639#L130-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 1444#L135-1 isHighWaterLevel_#t~ret33 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret33;havoc isHighWaterLevel_#t~ret33; 1638#L476-3 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~1 := 0; 1637#L476-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 1461#L482-1 processEnvironment__wrappee__highWaterSensor_#t~ret14 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~2 := processEnvironment__wrappee__highWaterSensor_#t~ret14;havoc processEnvironment__wrappee__highWaterSensor_#t~ret14; 1462#L352-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2); 1410#L323 havoc __utac_acc__Specification5_spec__3_#t~ret11, __utac_acc__Specification5_spec__3_#t~ret12, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 1411#L122 __utac_acc__Specification5_spec__3_#t~ret11 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret11;havoc __utac_acc__Specification5_spec__3_#t~ret11; 1532#L170 assume 2 != __utac_acc__Specification5_spec__3_~tmp~0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 1530#L427-1 __utac_acc__Specification5_spec__3_#t~ret12 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret12;havoc __utac_acc__Specification5_spec__3_#t~ret12; 1531#L174 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 1474#L170-1 [2018-12-02 15:01:28,323 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:01:28,323 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2018-12-02 15:01:28,323 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 15:01:28,323 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 15:01:28,324 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:01:28,324 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:01:28,324 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:01:28,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 15:01:28,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 15:01:28,346 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:01:28,346 INFO L82 PathProgramCache]: Analyzing trace with hash -715255062, now seen corresponding path program 1 times [2018-12-02 15:01:28,347 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 15:01:28,347 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 15:01:28,347 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:01:28,347 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 15:01:28,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:01:28,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 15:01:28,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 15:01:28,355 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:01:28,356 INFO L82 PathProgramCache]: Analyzing trace with hash -778681244, now seen corresponding path program 1 times [2018-12-02 15:01:28,356 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 15:01:28,356 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 15:01:28,356 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:01:28,357 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:01:28,357 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:01:28,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 15:01:28,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 15:01:33,525 WARN L180 SmtUtils]: Spent 5.00 s on a formula simplification. DAG size of input: 429 DAG size of output: 427 [2018-12-02 15:01:35,931 WARN L180 SmtUtils]: Spent 2.40 s on a formula simplification that was a NOOP. DAG size: 425 [2018-12-02 15:01:35,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.12 03:01:35 BoogieIcfgContainer [2018-12-02 15:01:35,964 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-02 15:01:35,964 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 15:01:35,964 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 15:01:35,964 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 15:01:35,964 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:01:27" (3/4) ... [2018-12-02 15:01:35,966 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-12-02 15:01:36,000 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_736e5b51-1936-4628-bc42-97ec75de1d0d/bin-2019/uautomizer/witness.graphml [2018-12-02 15:01:36,000 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 15:01:36,001 INFO L168 Benchmark]: Toolchain (without parser) took 9149.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 183.5 MB). Free memory was 950.6 MB in the beginning and 1.2 GB in the end (delta: -228.4 MB). Peak memory consumption was 265.3 MB. Max. memory is 11.5 GB. [2018-12-02 15:01:36,001 INFO L168 Benchmark]: CDTParser took 0.20 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. [2018-12-02 15:01:36,002 INFO L168 Benchmark]: CACSL2BoogieTranslator took 273.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -163.0 MB). Peak memory consumption was 27.6 MB. Max. memory is 11.5 GB. [2018-12-02 15:01:36,002 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-02 15:01:36,002 INFO L168 Benchmark]: Boogie Preprocessor took 21.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-02 15:01:36,002 INFO L168 Benchmark]: RCFGBuilder took 350.92 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: 60.1 MB). Peak memory consumption was 60.1 MB. Max. memory is 11.5 GB. [2018-12-02 15:01:36,002 INFO L168 Benchmark]: BuchiAutomizer took 8428.96 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 47.7 MB). Free memory was 1.0 GB in the beginning and 859.6 MB in the end (delta: 188.5 MB). Peak memory consumption was 246.3 MB. Max. memory is 11.5 GB. [2018-12-02 15:01:36,003 INFO L168 Benchmark]: Witness Printer took 36.66 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 11.5 MB). Free memory was 859.6 MB in the beginning and 1.2 GB in the end (delta: -319.4 MB). Peak memory consumption was 2.3 MB. Max. memory is 11.5 GB. [2018-12-02 15:01:36,004 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 273.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -163.0 MB). Peak memory consumption was 27.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 350.92 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: 60.1 MB). Peak memory consumption was 60.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 8428.96 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 47.7 MB). Free memory was 1.0 GB in the beginning and 859.6 MB in the end (delta: 188.5 MB). Peak memory consumption was 246.3 MB. Max. memory is 11.5 GB. * Witness Printer took 36.66 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 11.5 MB). Free memory was 859.6 MB in the beginning and 1.2 GB in the end (delta: -319.4 MB). Peak memory consumption was 2.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 308 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 8.3s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 7.9s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 356 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 308 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 567 SDtfs, 1500 SDslu, 775 SDs, 0 SdLazy, 172 SolverSat, 54 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 497]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {NULL=0, NULL=0, NULL=22, retValue_acc=0, NULL=36, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5ff55d7d=0, NULL=16, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@32d0edfc=0, NULL=0, NULL=0, methaneLevelCritical=0, tmp___0=0, NULL=0, tmp=0, NULL=0, NULL=0, NULL=35, NULL=0, tmp___1=0, tmp=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@226d7b6b=0, NULL=14, NULL=23, cleanupTimeShifts=4, switchedOnBeforeTS=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59ca5bff=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@58771287=56, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@619c978b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f17444a=0, NULL=0, systemActive=1, waterLevel=1, NULL=11, \result=1, NULL=0, NULL=0, NULL=19, \result=0, NULL=15, NULL=0, NULL=0, tmp___0=0, \result=1, retValue_acc=1, NULL=31, head=0, pumpRunning=0, NULL=37, \result=0, NULL=27, tmp=1, retValue_acc=1, NULL=0, NULL=0, \result=1, NULL=39, NULL=29, NULL=28, retValue_acc=1, NULL=0, tmp=1, NULL=24, tmp___2=56, tmp___0=0, NULL=12, NULL=33, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@67c1c36c=0, splverifierCounter=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5958ae99=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=18, NULL=8, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@36c598a5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@673b7ae5=0, NULL=20, tmp=0, head=0, NULL=0, NULL=0, NULL=34, NULL=0, NULL=0, NULL=38, NULL=17, NULL=0, NULL=26, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L143] int switchedOnBeforeTS ; [L192] int cleanupTimeShifts = 4; [L306] int pumpRunning = 0; [L307] int systemActive = 1; [L756] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L272] int retValue_acc ; [L273] int tmp ; [L578] int retValue_acc ; [L581] retValue_acc = 1 [L582] return (retValue_acc); [L279] tmp = valid_product() [L281] COND TRUE \read(tmp) [L148] switchedOnBeforeTS = 0 [L488] int splverifierCounter ; [L489] int tmp ; [L490] int tmp___0 ; [L491] int tmp___1 ; [L492] int tmp___2 ; [L495] splverifierCounter = 0 Loop: [L497] COND TRUE 1 [L499] COND TRUE splverifierCounter < 4 [L505] tmp = __VERIFIER_nondet_int() [L507] COND FALSE !(\read(tmp)) [L515] tmp___0 = __VERIFIER_nondet_int() [L517] COND FALSE !(\read(tmp___0)) [L525] tmp___2 = __VERIFIER_nondet_int() [L527] COND TRUE \read(tmp___2) [L423] int retValue_acc ; [L426] retValue_acc = pumpRunning [L427] return (retValue_acc); [L157] switchedOnBeforeTS = isPumpRunning() [L316] COND FALSE !(\read(pumpRunning)) [L323] COND TRUE \read(systemActive) [L371] int tmp ; [L374] COND FALSE !(\read(pumpRunning)) [L345] int tmp ; [L348] COND TRUE ! pumpRunning [L468] int retValue_acc ; [L469] int tmp ; [L470] int tmp___0 ; [L127] int retValue_acc ; [L130] COND TRUE waterLevel < 2 [L131] retValue_acc = 1 [L132] return (retValue_acc); [L474] tmp = isHighWaterSensorDry() [L476] COND TRUE \read(tmp) [L477] tmp___0 = 0 [L481] retValue_acc = tmp___0 [L482] return (retValue_acc); [L350] tmp = isHighWaterLevel() [L352] COND FALSE !(\read(tmp)) [L163] int tmp ; [L164] int tmp___0 ; [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); [L168] tmp = getWaterLevel() [L170] COND TRUE tmp != 2 [L423] int retValue_acc ; [L426] retValue_acc = pumpRunning [L427] return (retValue_acc); [L172] tmp___0 = isPumpRunning() [L174] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...