./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product57_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_e116bfc9-66b4-4df9-84f0-fd3127f25878/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e116bfc9-66b4-4df9-84f0-fd3127f25878/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e116bfc9-66b4-4df9-84f0-fd3127f25878/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e116bfc9-66b4-4df9-84f0-fd3127f25878/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product57_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e116bfc9-66b4-4df9-84f0-fd3127f25878/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e116bfc9-66b4-4df9-84f0-fd3127f25878/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 9bd2750697477c749a894a241eb18460dbfa6e62 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 [2018-12-09 10:12:12,288 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 10:12:12,290 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 10:12:12,297 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 10:12:12,298 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 10:12:12,298 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 10:12:12,299 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 10:12:12,300 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 10:12:12,301 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 10:12:12,302 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 10:12:12,302 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 10:12:12,303 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 10:12:12,303 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 10:12:12,304 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 10:12:12,305 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 10:12:12,305 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 10:12:12,306 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 10:12:12,307 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 10:12:12,308 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 10:12:12,309 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 10:12:12,310 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 10:12:12,311 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 10:12:12,312 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 10:12:12,313 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 10:12:12,313 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 10:12:12,313 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 10:12:12,314 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 10:12:12,315 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 10:12:12,315 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 10:12:12,316 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 10:12:12,316 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 10:12:12,316 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 10:12:12,317 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 10:12:12,317 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 10:12:12,317 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 10:12:12,318 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 10:12:12,318 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e116bfc9-66b4-4df9-84f0-fd3127f25878/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-12-09 10:12:12,329 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 10:12:12,329 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 10:12:12,330 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 10:12:12,330 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 10:12:12,331 INFO L133 SettingsManager]: * Use SBE=true [2018-12-09 10:12:12,331 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-09 10:12:12,331 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-09 10:12:12,331 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-09 10:12:12,331 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-09 10:12:12,331 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-09 10:12:12,331 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-09 10:12:12,331 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 10:12:12,331 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 10:12:12,332 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-09 10:12:12,332 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 10:12:12,332 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 10:12:12,332 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 10:12:12,332 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-09 10:12:12,332 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-09 10:12:12,332 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-09 10:12:12,332 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 10:12:12,332 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 10:12:12,333 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-09 10:12:12,333 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 10:12:12,333 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-09 10:12:12,333 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 10:12:12,333 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 10:12:12,333 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-09 10:12:12,333 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 10:12:12,333 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-09 10:12:12,333 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-09 10:12:12,334 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-09 10:12:12,334 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_e116bfc9-66b4-4df9-84f0-fd3127f25878/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 -> 9bd2750697477c749a894a241eb18460dbfa6e62 [2018-12-09 10:12:12,356 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 10:12:12,365 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 10:12:12,368 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 10:12:12,369 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 10:12:12,369 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 10:12:12,370 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e116bfc9-66b4-4df9-84f0-fd3127f25878/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product57_true-unreach-call_false-termination.cil.c [2018-12-09 10:12:12,408 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e116bfc9-66b4-4df9-84f0-fd3127f25878/bin-2019/uautomizer/data/bd8b7f1c7/d250df9cbae348709a865257dc4ba270/FLAG3420d09c8 [2018-12-09 10:12:12,806 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 10:12:12,807 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e116bfc9-66b4-4df9-84f0-fd3127f25878/sv-benchmarks/c/product-lines/minepump_spec5_product57_true-unreach-call_false-termination.cil.c [2018-12-09 10:12:12,813 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e116bfc9-66b4-4df9-84f0-fd3127f25878/bin-2019/uautomizer/data/bd8b7f1c7/d250df9cbae348709a865257dc4ba270/FLAG3420d09c8 [2018-12-09 10:12:12,822 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e116bfc9-66b4-4df9-84f0-fd3127f25878/bin-2019/uautomizer/data/bd8b7f1c7/d250df9cbae348709a865257dc4ba270 [2018-12-09 10:12:12,823 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 10:12:12,824 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 10:12:12,825 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 10:12:12,825 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 10:12:12,827 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 10:12:12,827 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:12:12" (1/1) ... [2018-12-09 10:12:12,829 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@354f5439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:12:12, skipping insertion in model container [2018-12-09 10:12:12,829 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:12:12" (1/1) ... [2018-12-09 10:12:12,833 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 10:12:12,854 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 10:12:13,004 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 10:12:13,048 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 10:12:13,108 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 10:12:13,128 INFO L195 MainTranslator]: Completed translation [2018-12-09 10:12:13,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:12:13 WrapperNode [2018-12-09 10:12:13,128 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 10:12:13,129 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 10:12:13,129 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 10:12:13,129 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 10:12:13,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:12:13" (1/1) ... [2018-12-09 10:12:13,146 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:12:13" (1/1) ... [2018-12-09 10:12:13,177 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 10:12:13,177 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 10:12:13,177 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 10:12:13,177 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 10:12:13,183 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:12:13" (1/1) ... [2018-12-09 10:12:13,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:12:13" (1/1) ... [2018-12-09 10:12:13,185 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:12:13" (1/1) ... [2018-12-09 10:12:13,185 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:12:13" (1/1) ... [2018-12-09 10:12:13,191 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:12:13" (1/1) ... [2018-12-09 10:12:13,196 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:12:13" (1/1) ... [2018-12-09 10:12:13,197 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:12:13" (1/1) ... [2018-12-09 10:12:13,199 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 10:12:13,200 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 10:12:13,200 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 10:12:13,200 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 10:12:13,200 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:12:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e116bfc9-66b4-4df9-84f0-fd3127f25878/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 [2018-12-09 10:12:13,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 10:12:13,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-09 10:12:13,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 10:12:13,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 10:12:13,607 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 10:12:13,607 INFO L280 CfgBuilder]: Removed 206 assue(true) statements. [2018-12-09 10:12:13,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:12:13 BoogieIcfgContainer [2018-12-09 10:12:13,608 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 10:12:13,608 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-09 10:12:13,608 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-09 10:12:13,611 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-09 10:12:13,612 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-09 10:12:13,612 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.12 10:12:12" (1/3) ... [2018-12-09 10:12:13,613 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4ad63165 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.12 10:12:13, skipping insertion in model container [2018-12-09 10:12:13,613 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-09 10:12:13,613 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:12:13" (2/3) ... [2018-12-09 10:12:13,613 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4ad63165 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.12 10:12:13, skipping insertion in model container [2018-12-09 10:12:13,613 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-09 10:12:13,613 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:12:13" (3/3) ... [2018-12-09 10:12:13,615 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product57_true-unreach-call_false-termination.cil.c [2018-12-09 10:12:13,655 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 10:12:13,656 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-09 10:12:13,656 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-09 10:12:13,656 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-09 10:12:13,656 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 10:12:13,656 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 10:12:13,656 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-09 10:12:13,656 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 10:12:13,656 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-09 10:12:13,668 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 141 states. [2018-12-09 10:12:13,685 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 91 [2018-12-09 10:12:13,685 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 10:12:13,685 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 10:12:13,690 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:12:13,690 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:12:13,691 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-09 10:12:13,691 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 141 states. [2018-12-09 10:12:13,694 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 91 [2018-12-09 10:12:13,694 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 10:12:13,694 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 10:12:13,694 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:12:13,694 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:12:13,698 INFO L794 eck$LassoCheckResult]: Stem: 103#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string3.base, #t~string3.offset := #Ultimate.alloc(13);call #t~string5.base, #t~string5.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string5.base, #t~string5.offset, 1);call write~init~int(77, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(101, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(116, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(104, #t~string5.base, 4 + #t~string5.offset, 1);call write~init~int(58, #t~string5.base, 5 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 6 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string7.base, #t~string7.offset, 1);call write~init~int(82, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(73, #t~string7.base, 2 + #t~string7.offset, 1);call write~init~int(84, #t~string7.base, 3 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 4 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(75, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string11.base, #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 1 + #t~string11.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(21);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(30);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(9);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(21);call #t~string39.base, #t~string39.offset := #Ultimate.alloc(30);call #t~string40.base, #t~string40.offset := #Ultimate.alloc(9);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(25);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(30);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(9);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(25);~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string59.base, #t~string59.offset := #Ultimate.alloc(13);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(80, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(117, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(109, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(112, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(32, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1); 15#L-1true havoc main_#res;havoc main_#t~ret1, main_~retValue_acc~2, main_~tmp~0;havoc main_~retValue_acc~2;havoc main_~tmp~0; 115#L74true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 113#L82true main_#t~ret1 := valid_product_#res;main_~tmp~0 := main_#t~ret1;havoc main_#t~ret1; 100#L176true assume 0 != main_~tmp~0; 41#L150true ~switchedOnBeforeTS~0 := 0; 94#L672true havoc test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_#t~nondet53, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 114#L693-1true [2018-12-09 10:12:13,698 INFO L796 eck$LassoCheckResult]: Loop: 114#L693-1true assume !false; 136#L726true assume test_~splverifierCounter~0 < 4; 93#L727true test_~tmp~5 := test_#t~nondet50;havoc test_#t~nondet50; 101#L735true assume !(0 != test_~tmp~5); 95#L735-1true test_~tmp___0~1 := test_#t~nondet51;havoc test_#t~nondet51; 141#L745true assume !(0 != test_~tmp___0~1); 142#L745-1true test_~tmp___2~0 := test_#t~nondet52;havoc test_#t~nondet52; 64#L755true assume 0 != test_~tmp___2~0; 29#L761-2true havoc __utac_acc__Specification5_spec__2_#t~ret47;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~11;havoc isPumpRunning_~retValue_acc~11;isPumpRunning_~retValue_acc~11 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~11; 3#L921true __utac_acc__Specification5_spec__2_#t~ret47 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret47;havoc __utac_acc__Specification5_spec__2_#t~ret47; 139#L682true assume !(0 != ~pumpRunning~0); 134#L792true assume !(0 != ~systemActive~0); 87#L799true havoc __utac_acc__Specification5_spec__3_#t~ret48, __utac_acc__Specification5_spec__3_#t~ret49, __utac_acc__Specification5_spec__3_~tmp~4, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~4;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; 22#L271true __utac_acc__Specification5_spec__3_#t~ret48 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~4 := __utac_acc__Specification5_spec__3_#t~ret48;havoc __utac_acc__Specification5_spec__3_#t~ret48; 138#L693true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4); 114#L693-1true [2018-12-09 10:12:13,702 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:12:13,702 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2018-12-09 10:12:13,703 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 10:12:13,704 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 10:12:13,732 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:12:13,732 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:12:13,732 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:12:13,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 10:12:13,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 10:12:13,824 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:12:13,824 INFO L82 PathProgramCache]: Analyzing trace with hash 96782764, now seen corresponding path program 1 times [2018-12-09 10:12:13,824 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 10:12:13,824 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 10:12:13,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:12:13,825 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:12:13,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:12:13,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 10:12:13,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 10:12:13,834 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:12:13,834 INFO L82 PathProgramCache]: Analyzing trace with hash 2030807974, now seen corresponding path program 1 times [2018-12-09 10:12:13,834 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 10:12:13,834 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 10:12:13,835 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:12:13,835 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:12:13,835 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:12:13,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:12:13,907 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 10:12:13,908 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:12:13,909 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-09 10:12:13,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 10:12:13,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-12-09 10:12:13,968 INFO L87 Difference]: Start difference. First operand 141 states. Second operand 6 states. [2018-12-09 10:12:14,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:12:14,039 INFO L93 Difference]: Finished difference Result 141 states and 199 transitions. [2018-12-09 10:12:14,040 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 10:12:14,041 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 141 states and 199 transitions. [2018-12-09 10:12:14,044 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 89 [2018-12-09 10:12:14,049 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 141 states to 134 states and 192 transitions. [2018-12-09 10:12:14,050 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 134 [2018-12-09 10:12:14,051 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 134 [2018-12-09 10:12:14,051 INFO L73 IsDeterministic]: Start isDeterministic. Operand 134 states and 192 transitions. [2018-12-09 10:12:14,052 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-09 10:12:14,052 INFO L705 BuchiCegarLoop]: Abstraction has 134 states and 192 transitions. [2018-12-09 10:12:14,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states and 192 transitions. [2018-12-09 10:12:14,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2018-12-09 10:12:14,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2018-12-09 10:12:14,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 192 transitions. [2018-12-09 10:12:14,077 INFO L728 BuchiCegarLoop]: Abstraction has 134 states and 192 transitions. [2018-12-09 10:12:14,078 INFO L608 BuchiCegarLoop]: Abstraction has 134 states and 192 transitions. [2018-12-09 10:12:14,078 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-09 10:12:14,078 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 134 states and 192 transitions. [2018-12-09 10:12:14,079 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 89 [2018-12-09 10:12:14,080 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 10:12:14,080 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 10:12:14,080 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:12:14,080 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:12:14,081 INFO L794 eck$LassoCheckResult]: Stem: 417#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string3.base, #t~string3.offset := #Ultimate.alloc(13);call #t~string5.base, #t~string5.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string5.base, #t~string5.offset, 1);call write~init~int(77, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(101, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(116, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(104, #t~string5.base, 4 + #t~string5.offset, 1);call write~init~int(58, #t~string5.base, 5 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 6 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string7.base, #t~string7.offset, 1);call write~init~int(82, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(73, #t~string7.base, 2 + #t~string7.offset, 1);call write~init~int(84, #t~string7.base, 3 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 4 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(75, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string11.base, #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 1 + #t~string11.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(21);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(30);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(9);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(21);call #t~string39.base, #t~string39.offset := #Ultimate.alloc(30);call #t~string40.base, #t~string40.offset := #Ultimate.alloc(9);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(25);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(30);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(9);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(25);~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string59.base, #t~string59.offset := #Ultimate.alloc(13);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(80, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(117, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(109, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(112, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(32, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1); 323#L-1 havoc main_#res;havoc main_#t~ret1, main_~retValue_acc~2, main_~tmp~0;havoc main_~retValue_acc~2;havoc main_~tmp~0; 324#L74 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 425#L82 main_#t~ret1 := valid_product_#res;main_~tmp~0 := main_#t~ret1;havoc main_#t~ret1; 415#L176 assume 0 != main_~tmp~0; 362#L150 ~switchedOnBeforeTS~0 := 0; 363#L672 havoc test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_#t~nondet53, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 331#L693-1 [2018-12-09 10:12:14,081 INFO L796 eck$LassoCheckResult]: Loop: 331#L693-1 assume !false; 426#L726 assume test_~splverifierCounter~0 < 4; 409#L727 test_~tmp~5 := test_#t~nondet50;havoc test_#t~nondet50; 410#L735 assume !(0 != test_~tmp~5); 411#L735-1 test_~tmp___0~1 := test_#t~nondet51;havoc test_#t~nondet51; 412#L745 assume !(0 != test_~tmp___0~1); 414#L745-1 test_~tmp___2~0 := test_#t~nondet52;havoc test_#t~nondet52; 396#L755 assume 0 != test_~tmp___2~0; 339#L761-2 havoc __utac_acc__Specification5_spec__2_#t~ret47;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~11;havoc isPumpRunning_~retValue_acc~11;isPumpRunning_~retValue_acc~11 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~11; 302#L921 __utac_acc__Specification5_spec__2_#t~ret47 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret47;havoc __utac_acc__Specification5_spec__2_#t~ret47; 303#L682 assume !(0 != ~pumpRunning~0); 394#L792 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret55, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 427#L850 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret54, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 383#L824-1 assume !(0 == ~pumpRunning~0); 377#L799 havoc __utac_acc__Specification5_spec__3_#t~ret48, __utac_acc__Specification5_spec__3_#t~ret49, __utac_acc__Specification5_spec__3_~tmp~4, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~4;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; 334#L271 __utac_acc__Specification5_spec__3_#t~ret48 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~4 := __utac_acc__Specification5_spec__3_#t~ret48;havoc __utac_acc__Specification5_spec__3_#t~ret48; 335#L693 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4); 331#L693-1 [2018-12-09 10:12:14,081 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:12:14,081 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2018-12-09 10:12:14,082 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 10:12:14,082 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 10:12:14,082 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:12:14,083 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:12:14,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:12:14,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 10:12:14,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 10:12:14,126 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:12:14,126 INFO L82 PathProgramCache]: Analyzing trace with hash -466767723, now seen corresponding path program 1 times [2018-12-09 10:12:14,126 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 10:12:14,126 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 10:12:14,127 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:12:14,127 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 10:12:14,127 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:12:14,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:12:14,140 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 10:12:14,140 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:12:14,140 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 10:12:14,141 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-12-09 10:12:14,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 10:12:14,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 10:12:14,141 INFO L87 Difference]: Start difference. First operand 134 states and 192 transitions. cyclomatic complexity: 60 Second operand 3 states. [2018-12-09 10:12:14,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:12:14,219 INFO L93 Difference]: Finished difference Result 183 states and 251 transitions. [2018-12-09 10:12:14,219 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 10:12:14,219 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 183 states and 251 transitions. [2018-12-09 10:12:14,222 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 126 [2018-12-09 10:12:14,223 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 183 states to 183 states and 251 transitions. [2018-12-09 10:12:14,223 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 183 [2018-12-09 10:12:14,224 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 183 [2018-12-09 10:12:14,224 INFO L73 IsDeterministic]: Start isDeterministic. Operand 183 states and 251 transitions. [2018-12-09 10:12:14,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-09 10:12:14,225 INFO L705 BuchiCegarLoop]: Abstraction has 183 states and 251 transitions. [2018-12-09 10:12:14,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states and 251 transitions. [2018-12-09 10:12:14,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2018-12-09 10:12:14,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2018-12-09 10:12:14,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 251 transitions. [2018-12-09 10:12:14,232 INFO L728 BuchiCegarLoop]: Abstraction has 183 states and 251 transitions. [2018-12-09 10:12:14,232 INFO L608 BuchiCegarLoop]: Abstraction has 183 states and 251 transitions. [2018-12-09 10:12:14,232 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-12-09 10:12:14,232 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 183 states and 251 transitions. [2018-12-09 10:12:14,234 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 126 [2018-12-09 10:12:14,234 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 10:12:14,234 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 10:12:14,235 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:12:14,235 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] [2018-12-09 10:12:14,235 INFO L794 eck$LassoCheckResult]: Stem: 744#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string3.base, #t~string3.offset := #Ultimate.alloc(13);call #t~string5.base, #t~string5.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string5.base, #t~string5.offset, 1);call write~init~int(77, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(101, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(116, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(104, #t~string5.base, 4 + #t~string5.offset, 1);call write~init~int(58, #t~string5.base, 5 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 6 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string7.base, #t~string7.offset, 1);call write~init~int(82, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(73, #t~string7.base, 2 + #t~string7.offset, 1);call write~init~int(84, #t~string7.base, 3 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 4 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(75, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string11.base, #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 1 + #t~string11.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(21);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(30);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(9);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(21);call #t~string39.base, #t~string39.offset := #Ultimate.alloc(30);call #t~string40.base, #t~string40.offset := #Ultimate.alloc(9);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(25);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(30);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(9);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(25);~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string59.base, #t~string59.offset := #Ultimate.alloc(13);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(80, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(117, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(109, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(112, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(32, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1); 646#L-1 havoc main_#res;havoc main_#t~ret1, main_~retValue_acc~2, main_~tmp~0;havoc main_~retValue_acc~2;havoc main_~tmp~0; 647#L74 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 752#L82 main_#t~ret1 := valid_product_#res;main_~tmp~0 := main_#t~ret1;havoc main_#t~ret1; 742#L176 assume 0 != main_~tmp~0; 685#L150 ~switchedOnBeforeTS~0 := 0; 686#L672 havoc test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_#t~nondet53, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 654#L693-1 [2018-12-09 10:12:14,235 INFO L796 eck$LassoCheckResult]: Loop: 654#L693-1 assume !false; 753#L726 assume test_~splverifierCounter~0 < 4; 736#L727 test_~tmp~5 := test_#t~nondet50;havoc test_#t~nondet50; 737#L735 assume !(0 != test_~tmp~5); 738#L735-1 test_~tmp___0~1 := test_#t~nondet51;havoc test_#t~nondet51; 739#L745 assume !(0 != test_~tmp___0~1); 741#L745-1 test_~tmp___2~0 := test_#t~nondet52;havoc test_#t~nondet52; 721#L755 assume 0 != test_~tmp___2~0; 662#L761-2 havoc __utac_acc__Specification5_spec__2_#t~ret47;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~11;havoc isPumpRunning_~retValue_acc~11;isPumpRunning_~retValue_acc~11 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~11; 625#L921 __utac_acc__Specification5_spec__2_#t~ret47 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret47;havoc __utac_acc__Specification5_spec__2_#t~ret47; 626#L682 assume !(0 != ~pumpRunning~0); 763#L792 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret55, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 756#L850 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret54, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 707#L824-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret74, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~9, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~9;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~5;havoc isHighWaterSensorDry_~retValue_acc~5; 708#L279-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~5; 724#L284-1 isHighWaterLevel_#t~ret74 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~9 := isHighWaterLevel_#t~ret74;havoc isHighWaterLevel_#t~ret74; 687#L970-3 assume 0 != isHighWaterLevel_~tmp~9;isHighWaterLevel_~tmp___0~2 := 0; 688#L970-5 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 655#L976-1 processEnvironment__wrappee__highWaterSensor_#t~ret54 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~6 := processEnvironment__wrappee__highWaterSensor_#t~ret54;havoc processEnvironment__wrappee__highWaterSensor_#t~ret54; 656#L828-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6); 733#L799 havoc __utac_acc__Specification5_spec__3_#t~ret48, __utac_acc__Specification5_spec__3_#t~ret49, __utac_acc__Specification5_spec__3_~tmp~4, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~4;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; 805#L271 __utac_acc__Specification5_spec__3_#t~ret48 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~4 := __utac_acc__Specification5_spec__3_#t~ret48;havoc __utac_acc__Specification5_spec__3_#t~ret48; 764#L693 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4); 654#L693-1 [2018-12-09 10:12:14,235 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:12:14,236 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2018-12-09 10:12:14,236 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 10:12:14,236 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 10:12:14,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:12:14,237 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:12:14,237 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:12:14,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 10:12:14,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 10:12:14,271 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:12:14,272 INFO L82 PathProgramCache]: Analyzing trace with hash 1396372129, now seen corresponding path program 1 times [2018-12-09 10:12:14,272 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 10:12:14,272 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 10:12:14,272 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:12:14,273 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 10:12:14,273 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:12:14,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:12:14,310 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 10:12:14,311 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:12:14,311 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 10:12:14,311 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-12-09 10:12:14,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 10:12:14,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 10:12:14,312 INFO L87 Difference]: Start difference. First operand 183 states and 251 transitions. cyclomatic complexity: 70 Second operand 5 states. [2018-12-09 10:12:14,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:12:14,497 INFO L93 Difference]: Finished difference Result 808 states and 1119 transitions. [2018-12-09 10:12:14,498 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 10:12:14,498 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 808 states and 1119 transitions. [2018-12-09 10:12:14,504 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 553 [2018-12-09 10:12:14,509 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 808 states to 808 states and 1119 transitions. [2018-12-09 10:12:14,509 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 808 [2018-12-09 10:12:14,510 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 808 [2018-12-09 10:12:14,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 808 states and 1119 transitions. [2018-12-09 10:12:14,513 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-09 10:12:14,513 INFO L705 BuchiCegarLoop]: Abstraction has 808 states and 1119 transitions. [2018-12-09 10:12:14,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 808 states and 1119 transitions. [2018-12-09 10:12:14,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 808 to 356. [2018-12-09 10:12:14,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-12-09 10:12:14,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 483 transitions. [2018-12-09 10:12:14,525 INFO L728 BuchiCegarLoop]: Abstraction has 356 states and 483 transitions. [2018-12-09 10:12:14,525 INFO L608 BuchiCegarLoop]: Abstraction has 356 states and 483 transitions. [2018-12-09 10:12:14,525 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-12-09 10:12:14,525 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 356 states and 483 transitions. [2018-12-09 10:12:14,527 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 250 [2018-12-09 10:12:14,527 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 10:12:14,527 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 10:12:14,528 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:12:14,528 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] [2018-12-09 10:12:14,528 INFO L794 eck$LassoCheckResult]: Stem: 1771#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string3.base, #t~string3.offset := #Ultimate.alloc(13);call #t~string5.base, #t~string5.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string5.base, #t~string5.offset, 1);call write~init~int(77, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(101, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(116, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(104, #t~string5.base, 4 + #t~string5.offset, 1);call write~init~int(58, #t~string5.base, 5 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 6 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string7.base, #t~string7.offset, 1);call write~init~int(82, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(73, #t~string7.base, 2 + #t~string7.offset, 1);call write~init~int(84, #t~string7.base, 3 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 4 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(75, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string11.base, #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 1 + #t~string11.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(21);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(30);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(9);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(21);call #t~string39.base, #t~string39.offset := #Ultimate.alloc(30);call #t~string40.base, #t~string40.offset := #Ultimate.alloc(9);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(25);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(30);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(9);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(25);~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string59.base, #t~string59.offset := #Ultimate.alloc(13);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(80, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(117, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(109, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(112, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(32, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1); 1656#L-1 havoc main_#res;havoc main_#t~ret1, main_~retValue_acc~2, main_~tmp~0;havoc main_~retValue_acc~2;havoc main_~tmp~0; 1657#L74 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 1780#L82 main_#t~ret1 := valid_product_#res;main_~tmp~0 := main_#t~ret1;havoc main_#t~ret1; 1769#L176 assume 0 != main_~tmp~0; 1699#L150 ~switchedOnBeforeTS~0 := 0; 1700#L672 havoc test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_#t~nondet53, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1664#L693-1 [2018-12-09 10:12:14,528 INFO L796 eck$LassoCheckResult]: Loop: 1664#L693-1 assume !false; 1781#L726 assume test_~splverifierCounter~0 < 4; 1950#L727 test_~tmp~5 := test_#t~nondet50;havoc test_#t~nondet50; 1981#L735 assume !(0 != test_~tmp~5); 1978#L735-1 test_~tmp___0~1 := test_#t~nondet51;havoc test_#t~nondet51; 1977#L745 assume !(0 != test_~tmp___0~1); 1975#L745-1 test_~tmp___2~0 := test_#t~nondet52;havoc test_#t~nondet52; 1974#L755 assume 0 != test_~tmp___2~0; 1972#L761-2 havoc __utac_acc__Specification5_spec__2_#t~ret47;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~11;havoc isPumpRunning_~retValue_acc~11;isPumpRunning_~retValue_acc~11 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~11; 1971#L921 __utac_acc__Specification5_spec__2_#t~ret47 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret47;havoc __utac_acc__Specification5_spec__2_#t~ret47; 1959#L682 assume !(0 != ~pumpRunning~0); 1958#L792 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret55, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 1957#L850 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret54, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 1940#L824-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret74, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~9, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~9;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~5;havoc isHighWaterSensorDry_~retValue_acc~5; 1956#L279-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~5; 1742#L284-1 isHighWaterLevel_#t~ret74 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~9 := isHighWaterLevel_#t~ret74;havoc isHighWaterLevel_#t~ret74; 1701#L970-3 assume 0 != isHighWaterLevel_~tmp~9;isHighWaterLevel_~tmp___0~2 := 0; 1702#L970-5 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 1665#L976-1 processEnvironment__wrappee__highWaterSensor_#t~ret54 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~6 := processEnvironment__wrappee__highWaterSensor_#t~ret54;havoc processEnvironment__wrappee__highWaterSensor_#t~ret54; 1666#L828-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6); 1757#L799 havoc __utac_acc__Specification5_spec__3_#t~ret48, __utac_acc__Specification5_spec__3_#t~ret49, __utac_acc__Specification5_spec__3_~tmp~4, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~4;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; 1953#L271 __utac_acc__Specification5_spec__3_#t~ret48 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~4 := __utac_acc__Specification5_spec__3_#t~ret48;havoc __utac_acc__Specification5_spec__3_#t~ret48; 1823#L693 assume 2 != __utac_acc__Specification5_spec__3_~tmp~4;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~11;havoc isPumpRunning_~retValue_acc~11;isPumpRunning_~retValue_acc~11 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~11; 1824#L921-1 __utac_acc__Specification5_spec__3_#t~ret49 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret49;havoc __utac_acc__Specification5_spec__3_#t~ret49; 1756#L697 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 1664#L693-1 [2018-12-09 10:12:14,529 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:12:14,529 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2018-12-09 10:12:14,529 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 10:12:14,529 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 10:12:14,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:12:14,530 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:12:14,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:12:14,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 10:12:14,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 10:12:14,561 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:12:14,561 INFO L82 PathProgramCache]: Analyzing trace with hash 1883808156, now seen corresponding path program 1 times [2018-12-09 10:12:14,561 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 10:12:14,561 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 10:12:14,562 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:12:14,562 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 10:12:14,562 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:12:14,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 10:12:14,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 10:12:14,572 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:12:14,572 INFO L82 PathProgramCache]: Analyzing trace with hash 1820381974, now seen corresponding path program 1 times [2018-12-09 10:12:14,572 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 10:12:14,572 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 10:12:14,573 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:12:14,573 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:12:14,573 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:12:14,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 10:12:14,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 10:12:14,717 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2018-12-09 10:12:19,782 WARN L180 SmtUtils]: Spent 5.02 s on a formula simplification. DAG size of input: 429 DAG size of output: 427 [2018-12-09 10:12:22,278 WARN L180 SmtUtils]: Spent 2.49 s on a formula simplification that was a NOOP. DAG size: 425 [2018-12-09 10:12:22,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.12 10:12:22 BoogieIcfgContainer [2018-12-09 10:12:22,311 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-09 10:12:22,311 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 10:12:22,311 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 10:12:22,311 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 10:12:22,312 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:12:13" (3/4) ... [2018-12-09 10:12:22,313 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-12-09 10:12:22,345 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e116bfc9-66b4-4df9-84f0-fd3127f25878/bin-2019/uautomizer/witness.graphml [2018-12-09 10:12:22,345 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 10:12:22,345 INFO L168 Benchmark]: Toolchain (without parser) took 9521.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 177.2 MB). Free memory was 951.7 MB in the beginning and 1.2 GB in the end (delta: -199.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 10:12:22,346 INFO L168 Benchmark]: CDTParser took 0.16 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. [2018-12-09 10:12:22,346 INFO L168 Benchmark]: CACSL2BoogieTranslator took 303.83 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -158.2 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2018-12-09 10:12:22,346 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.82 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 10:12:22,346 INFO L168 Benchmark]: Boogie Preprocessor took 22.74 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 10:12:22,347 INFO L168 Benchmark]: RCFGBuilder took 408.14 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: 65.4 MB). Peak memory consumption was 65.4 MB. Max. memory is 11.5 GB. [2018-12-09 10:12:22,347 INFO L168 Benchmark]: BuchiAutomizer took 8702.63 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 56.6 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -111.8 MB). Peak memory consumption was 240.8 MB. Max. memory is 11.5 GB. [2018-12-09 10:12:22,347 INFO L168 Benchmark]: Witness Printer took 33.81 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 10:12:22,348 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 303.83 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -158.2 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 47.82 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. * Boogie Preprocessor took 22.74 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 408.14 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: 65.4 MB). Peak memory consumption was 65.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 8702.63 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 56.6 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -111.8 MB). Peak memory consumption was 240.8 MB. Max. memory is 11.5 GB. * Witness Printer took 33.81 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. 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 356 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 8.6s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 8.1s. Construction of modules took 0.2s. 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, 452 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 356 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 681 SDtfs, 1659 SDslu, 965 SDs, 0 SdLazy, 193 SolverSat, 54 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s 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: 725]: 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, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6467f5aa=0, NULL=0, retValue_acc=0, NULL=0, NULL=23, NULL=0, NULL=0, NULL=22, NULL=0, NULL=33, NULL=0, NULL=0, NULL=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@68a620a5=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@d3bdec9=56, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1e3d0908=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@51592608=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3c2b0458=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1419241c=0, NULL=0, NULL=0, tmp=0, NULL=12, NULL=36, tmp=1, NULL=0, tmp___1=0, NULL=38, cleanupTimeShifts=4, retValue_acc=0, NULL=18, switchedOnBeforeTS=0, NULL=31, NULL=19, tmp=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@530ea1ac=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@467437f5=0, NULL=0, systemActive=1, waterLevel=1, NULL=15, \result=1, NULL=0, NULL=0, \result=0, NULL=28, tmp___0=0, \result=1, head=0, pumpRunning=0, tmp=1, \result=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@83a90a7=0, NULL=0, NULL=0, NULL=0, NULL=39, \result=1, NULL=35, NULL=20, NULL=0, retValue_acc=0, NULL=0, NULL=16, retValue_acc=1, tmp___2=56, retValue_acc=1, NULL=17, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, tmp=1, NULL=26, NULL=24, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@bf5b64e=0, NULL=14, head=0, NULL=34, tmp=0, NULL=0, NULL=11, NULL=0, NULL=27, NULL=8, NULL=0, NULL=37} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L87] int cleanupTimeShifts = 4; [L196] int waterLevel = 1; [L197] int methaneLevelCritical = 0; [L468] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L666] int switchedOnBeforeTS ; [L782] int pumpRunning = 0; [L783] int systemActive = 1; [L167] int retValue_acc ; [L168] int tmp ; [L78] int retValue_acc ; [L81] retValue_acc = 1 [L82] return (retValue_acc); [L174] tmp = valid_product() [L176] COND TRUE \read(tmp) [L671] switchedOnBeforeTS = 0 [L716] int splverifierCounter ; [L717] int tmp ; [L718] int tmp___0 ; [L719] int tmp___1 ; [L720] int tmp___2 ; [L723] splverifierCounter = 0 Loop: [L725] COND TRUE 1 [L727] COND TRUE splverifierCounter < 4 [L733] tmp = __VERIFIER_nondet_int() [L735] COND FALSE !(\read(tmp)) [L743] tmp___0 = __VERIFIER_nondet_int() [L745] COND FALSE !(\read(tmp___0)) [L753] tmp___2 = __VERIFIER_nondet_int() [L755] COND TRUE \read(tmp___2) [L917] int retValue_acc ; [L920] retValue_acc = pumpRunning [L921] return (retValue_acc); [L680] switchedOnBeforeTS = isPumpRunning() [L792] COND FALSE !(\read(pumpRunning)) [L799] COND TRUE \read(systemActive) [L847] int tmp ; [L850] COND FALSE !(\read(pumpRunning)) [L821] int tmp ; [L824] COND TRUE ! pumpRunning [L962] int retValue_acc ; [L963] int tmp ; [L964] int tmp___0 ; [L276] int retValue_acc ; [L279] COND TRUE waterLevel < 2 [L280] retValue_acc = 1 [L281] return (retValue_acc); [L968] tmp = isHighWaterSensorDry() [L970] COND TRUE \read(tmp) [L971] tmp___0 = 0 [L975] retValue_acc = tmp___0 [L976] return (retValue_acc); [L826] tmp = isHighWaterLevel() [L828] COND FALSE !(\read(tmp)) [L686] int tmp ; [L687] int tmp___0 ; [L267] int retValue_acc ; [L270] retValue_acc = waterLevel [L271] return (retValue_acc); [L691] tmp = getWaterLevel() [L693] COND TRUE tmp != 2 [L917] int retValue_acc ; [L920] retValue_acc = pumpRunning [L921] return (retValue_acc); [L695] tmp___0 = isPumpRunning() [L697] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...