./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product33.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9546e544-eb4b-45cc-8808-56ae0ddaa543/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_9546e544-eb4b-45cc-8808-56ae0ddaa543/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9546e544-eb4b-45cc-8808-56ae0ddaa543/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9546e544-eb4b-45cc-8808-56ae0ddaa543/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product33.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9546e544-eb4b-45cc-8808-56ae0ddaa543/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9546e544-eb4b-45cc-8808-56ae0ddaa543/bin/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 819c3ebf0e51053d89fb24b2dea5d171f2fed0d0 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.24-678e011 [2019-11-20 05:36:22,532 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 05:36:22,534 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 05:36:22,549 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 05:36:22,549 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 05:36:22,551 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 05:36:22,553 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 05:36:22,561 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 05:36:22,566 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 05:36:22,569 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 05:36:22,570 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 05:36:22,571 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 05:36:22,572 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 05:36:22,573 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 05:36:22,574 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 05:36:22,575 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 05:36:22,576 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 05:36:22,577 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 05:36:22,579 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 05:36:22,583 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 05:36:22,586 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 05:36:22,588 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 05:36:22,591 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 05:36:22,591 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 05:36:22,593 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 05:36:22,594 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 05:36:22,594 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 05:36:22,595 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 05:36:22,596 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 05:36:22,597 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 05:36:22,597 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 05:36:22,597 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 05:36:22,598 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 05:36:22,599 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 05:36:22,600 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 05:36:22,600 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 05:36:22,600 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 05:36:22,601 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 05:36:22,601 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 05:36:22,601 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 05:36:22,603 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 05:36:22,603 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9546e544-eb4b-45cc-8808-56ae0ddaa543/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-20 05:36:22,629 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 05:36:22,630 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 05:36:22,631 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 05:36:22,631 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 05:36:22,631 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 05:36:22,631 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 05:36:22,631 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 05:36:22,631 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 05:36:22,632 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 05:36:22,632 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 05:36:22,632 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 05:36:22,632 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 05:36:22,632 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 05:36:22,633 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 05:36:22,633 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 05:36:22,633 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 05:36:22,633 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 05:36:22,633 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 05:36:22,633 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 05:36:22,643 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 05:36:22,644 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 05:36:22,644 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 05:36:22,644 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 05:36:22,645 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 05:36:22,645 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 05:36:22,645 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 05:36:22,645 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 05:36:22,646 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 05:36:22,646 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 05:36:22,647 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 05:36:22,647 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 05:36:22,648 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 05:36:22,648 INFO L138 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/run_dir_9546e544-eb4b-45cc-8808-56ae0ddaa543/bin/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 -> 819c3ebf0e51053d89fb24b2dea5d171f2fed0d0 [2019-11-20 05:36:22,815 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 05:36:22,825 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 05:36:22,828 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 05:36:22,829 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 05:36:22,830 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 05:36:22,831 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9546e544-eb4b-45cc-8808-56ae0ddaa543/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product33.cil.c [2019-11-20 05:36:22,880 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9546e544-eb4b-45cc-8808-56ae0ddaa543/bin/uautomizer/data/dceb67bd3/1b8c863a15af47ad97ea6df119ce3ab4/FLAG3bd87a434 [2019-11-20 05:36:23,349 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 05:36:23,349 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9546e544-eb4b-45cc-8808-56ae0ddaa543/sv-benchmarks/c/product-lines/minepump_spec5_product33.cil.c [2019-11-20 05:36:23,362 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9546e544-eb4b-45cc-8808-56ae0ddaa543/bin/uautomizer/data/dceb67bd3/1b8c863a15af47ad97ea6df119ce3ab4/FLAG3bd87a434 [2019-11-20 05:36:23,375 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9546e544-eb4b-45cc-8808-56ae0ddaa543/bin/uautomizer/data/dceb67bd3/1b8c863a15af47ad97ea6df119ce3ab4 [2019-11-20 05:36:23,378 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 05:36:23,379 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 05:36:23,380 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 05:36:23,380 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 05:36:23,383 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 05:36:23,384 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:36:23" (1/1) ... [2019-11-20 05:36:23,393 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d30bae3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:23, skipping insertion in model container [2019-11-20 05:36:23,393 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:36:23" (1/1) ... [2019-11-20 05:36:23,404 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 05:36:23,465 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 05:36:23,824 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 05:36:23,836 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 05:36:23,920 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 05:36:23,962 INFO L192 MainTranslator]: Completed translation [2019-11-20 05:36:23,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:23 WrapperNode [2019-11-20 05:36:23,963 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 05:36:23,964 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 05:36:23,964 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 05:36:23,964 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 05:36:23,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:23" (1/1) ... [2019-11-20 05:36:23,986 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:23" (1/1) ... [2019-11-20 05:36:24,029 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 05:36:24,029 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 05:36:24,029 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 05:36:24,029 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 05:36:24,038 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:23" (1/1) ... [2019-11-20 05:36:24,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:23" (1/1) ... [2019-11-20 05:36:24,042 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:23" (1/1) ... [2019-11-20 05:36:24,043 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:23" (1/1) ... [2019-11-20 05:36:24,052 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:23" (1/1) ... [2019-11-20 05:36:24,059 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:23" (1/1) ... [2019-11-20 05:36:24,062 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:23" (1/1) ... [2019-11-20 05:36:24,066 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 05:36:24,068 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 05:36:24,069 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 05:36:24,069 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 05:36:24,070 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9546e544-eb4b-45cc-8808-56ae0ddaa543/bin/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 [2019-11-20 05:36:24,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 05:36:24,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-20 05:36:24,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 05:36:24,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 05:36:24,860 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 05:36:24,860 INFO L285 CfgBuilder]: Removed 110 assume(true) statements. [2019-11-20 05:36:24,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:36:24 BoogieIcfgContainer [2019-11-20 05:36:24,861 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 05:36:24,862 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 05:36:24,862 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 05:36:24,865 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 05:36:24,866 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 05:36:24,866 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 05:36:23" (1/3) ... [2019-11-20 05:36:24,868 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@77ef82b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 05:36:24, skipping insertion in model container [2019-11-20 05:36:24,869 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 05:36:24,869 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:23" (2/3) ... [2019-11-20 05:36:24,869 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@77ef82b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 05:36:24, skipping insertion in model container [2019-11-20 05:36:24,870 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 05:36:24,870 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:36:24" (3/3) ... [2019-11-20 05:36:24,872 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product33.cil.c [2019-11-20 05:36:24,912 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 05:36:24,912 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 05:36:24,912 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 05:36:24,912 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 05:36:24,913 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 05:36:24,913 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 05:36:24,913 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 05:36:24,913 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 05:36:24,930 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 84 states. [2019-11-20 05:36:24,951 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2019-11-20 05:36:24,952 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 05:36:24,952 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 05:36:24,958 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:36:24,958 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:36:24,958 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 05:36:24,958 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 84 states. [2019-11-20 05:36:24,964 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2019-11-20 05:36:24,964 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 05:36:24,964 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 05:36:24,965 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:36:24,965 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:36:24,969 INFO L794 eck$LassoCheckResult]: Stem: 34#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~head~0.base, ~head~0.offset := 0, 0;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(13);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string44.base, #t~string44.offset, 1);call write~init~int(110, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 2 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(102, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(102, #t~string46.base, 2 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 3 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string48.base, #t~string48.offset, 1);call write~init~int(80, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(117, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(109, #t~string48.base, 3 + #t~string48.offset, 1);call write~init~int(112, #t~string48.base, 4 + #t~string48.offset, 1);call write~init~int(58, #t~string48.base, 5 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 6 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string50.base, #t~string50.offset, 1);call write~init~int(110, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 2 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(102, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(102, #t~string52.base, 2 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 3 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string54.base, #t~string54.offset, 1);call write~init~int(32, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string56.base, #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 1 + #t~string56.offset, 1);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(77, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(101, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(116, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(104, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string65.base, #t~string65.offset, 1);call write~init~int(82, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(73, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(84, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 4 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(75, #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.allocOnStack(2);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~switchedOnBeforeTS~0 := 0; 7#L-1true havoc main_#res;havoc main_#t~ret59, main_~retValue_acc~8, main_~tmp~6;havoc main_~retValue_acc~8;havoc main_~tmp~6; 4#L665true havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 25#L673true main_#t~ret59 := valid_product_#res;main_~tmp~6 := main_#t~ret59;havoc main_#t~ret59; 63#L762true assume 0 != main_~tmp~6; 75#L737true ~switchedOnBeforeTS~0 := 0; 50#L886true havoc test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 30#L907-1true [2019-11-20 05:36:24,970 INFO L796 eck$LassoCheckResult]: Loop: 30#L907-1true assume !false; 39#L421true assume test_~splverifierCounter~0 < 4; 60#L422true test_~tmp~3 := test_#t~nondet35;havoc test_#t~nondet35; 69#L430true assume !(0 != test_~tmp~3); 73#L430-1true test_~tmp___0~0 := test_#t~nondet36;havoc test_#t~nondet36; 45#L440true assume !(0 != test_~tmp___0~0); 47#L440-1true test_~tmp___2~0 := test_#t~nondet37;havoc test_#t~nondet37; 24#L450true assume 0 != test_~tmp___2~0; 83#L456-2true havoc __utac_acc__Specification5_spec__2_#t~ret70;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; 67#L580true __utac_acc__Specification5_spec__2_#t~ret70 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret70;havoc __utac_acc__Specification5_spec__2_#t~ret70; 28#L896true assume !(0 != ~pumpRunning~0); 65#L495true assume !(0 != ~systemActive~0); 51#L502true havoc __utac_acc__Specification5_spec__3_#t~ret71, __utac_acc__Specification5_spec__3_#t~ret72, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 56#L861true __utac_acc__Specification5_spec__3_#t~ret71 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret71;havoc __utac_acc__Specification5_spec__3_#t~ret71; 26#L907true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7); 30#L907-1true [2019-11-20 05:36:24,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:36:24,976 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-11-20 05:36:24,984 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:36:24,985 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787780489] [2019-11-20 05:36:24,985 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:36:25,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:36:25,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:36:25,275 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 05:36:25,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:36:25,276 INFO L82 PathProgramCache]: Analyzing trace with hash 94350828, now seen corresponding path program 1 times [2019-11-20 05:36:25,277 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:36:25,277 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845120095] [2019-11-20 05:36:25,277 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:36:25,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:36:25,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:36:25,293 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 05:36:25,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:36:25,294 INFO L82 PathProgramCache]: Analyzing trace with hash 2028376038, now seen corresponding path program 1 times [2019-11-20 05:36:25,295 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:36:25,295 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373492170] [2019-11-20 05:36:25,295 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:36:25,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:36:25,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:36:25,473 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373492170] [2019-11-20 05:36:25,473 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 05:36:25,474 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 05:36:25,474 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736425688] [2019-11-20 05:36:25,618 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:36:25,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 05:36:25,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-20 05:36:25,635 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 6 states. [2019-11-20 05:36:25,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:36:25,824 INFO L93 Difference]: Finished difference Result 84 states and 115 transitions. [2019-11-20 05:36:25,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 05:36:25,829 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 84 states and 115 transitions. [2019-11-20 05:36:25,833 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2019-11-20 05:36:25,848 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 84 states to 77 states and 108 transitions. [2019-11-20 05:36:25,850 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 77 [2019-11-20 05:36:25,850 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 77 [2019-11-20 05:36:25,851 INFO L73 IsDeterministic]: Start isDeterministic. Operand 77 states and 108 transitions. [2019-11-20 05:36:25,852 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 05:36:25,852 INFO L688 BuchiCegarLoop]: Abstraction has 77 states and 108 transitions. [2019-11-20 05:36:25,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states and 108 transitions. [2019-11-20 05:36:25,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2019-11-20 05:36:25,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2019-11-20 05:36:25,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 108 transitions. [2019-11-20 05:36:25,898 INFO L711 BuchiCegarLoop]: Abstraction has 77 states and 108 transitions. [2019-11-20 05:36:25,898 INFO L591 BuchiCegarLoop]: Abstraction has 77 states and 108 transitions. [2019-11-20 05:36:25,898 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-20 05:36:25,899 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 77 states and 108 transitions. [2019-11-20 05:36:25,905 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2019-11-20 05:36:25,905 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 05:36:25,905 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 05:36:25,908 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:36:25,908 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:36:25,908 INFO L794 eck$LassoCheckResult]: Stem: 240#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~head~0.base, ~head~0.offset := 0, 0;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(13);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string44.base, #t~string44.offset, 1);call write~init~int(110, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 2 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(102, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(102, #t~string46.base, 2 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 3 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string48.base, #t~string48.offset, 1);call write~init~int(80, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(117, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(109, #t~string48.base, 3 + #t~string48.offset, 1);call write~init~int(112, #t~string48.base, 4 + #t~string48.offset, 1);call write~init~int(58, #t~string48.base, 5 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 6 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string50.base, #t~string50.offset, 1);call write~init~int(110, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 2 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(102, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(102, #t~string52.base, 2 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 3 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string54.base, #t~string54.offset, 1);call write~init~int(32, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string56.base, #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 1 + #t~string56.offset, 1);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(77, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(101, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(116, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(104, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string65.base, #t~string65.offset, 1);call write~init~int(82, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(73, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(84, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 4 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(75, #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.allocOnStack(2);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~switchedOnBeforeTS~0 := 0; 192#L-1 havoc main_#res;havoc main_#t~ret59, main_~retValue_acc~8, main_~tmp~6;havoc main_~retValue_acc~8;havoc main_~tmp~6; 188#L665 havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 189#L673 main_#t~ret59 := valid_product_#res;main_~tmp~6 := main_#t~ret59;havoc main_#t~ret59; 222#L762 assume 0 != main_~tmp~6; 259#L737 ~switchedOnBeforeTS~0 := 0; 253#L886 havoc test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 225#L907-1 [2019-11-20 05:36:25,909 INFO L796 eck$LassoCheckResult]: Loop: 225#L907-1 assume !false; 233#L421 assume test_~splverifierCounter~0 < 4; 245#L422 test_~tmp~3 := test_#t~nondet35;havoc test_#t~nondet35; 258#L430 assume !(0 != test_~tmp~3); 187#L430-1 test_~tmp___0~0 := test_#t~nondet36;havoc test_#t~nondet36; 251#L440 assume !(0 != test_~tmp___0~0); 244#L440-1 test_~tmp___2~0 := test_#t~nondet37;havoc test_#t~nondet37; 219#L450 assume 0 != test_~tmp___2~0; 221#L456-2 havoc __utac_acc__Specification5_spec__2_#t~ret70;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; 261#L580 __utac_acc__Specification5_spec__2_#t~ret70 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret70;havoc __utac_acc__Specification5_spec__2_#t~ret70; 228#L896 assume !(0 != ~pumpRunning~0); 229#L495 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret39, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 247#L527 assume !(0 == ~pumpRunning~0); 239#L502 havoc __utac_acc__Specification5_spec__3_#t~ret71, __utac_acc__Specification5_spec__3_#t~ret72, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 252#L861 __utac_acc__Specification5_spec__3_#t~ret71 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret71;havoc __utac_acc__Specification5_spec__3_#t~ret71; 223#L907 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7); 225#L907-1 [2019-11-20 05:36:25,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:36:25,909 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-11-20 05:36:25,910 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:36:25,910 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329943470] [2019-11-20 05:36:25,910 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:36:25,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:36:26,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:36:26,031 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 05:36:26,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:36:26,040 INFO L82 PathProgramCache]: Analyzing trace with hash -1401702333, now seen corresponding path program 1 times [2019-11-20 05:36:26,041 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:36:26,041 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115276243] [2019-11-20 05:36:26,041 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:36:26,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:36:26,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:36:26,058 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115276243] [2019-11-20 05:36:26,058 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 05:36:26,058 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 05:36:26,058 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791830059] [2019-11-20 05:36:26,059 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-20 05:36:26,059 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:36:26,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 05:36:26,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 05:36:26,059 INFO L87 Difference]: Start difference. First operand 77 states and 108 transitions. cyclomatic complexity: 33 Second operand 3 states. [2019-11-20 05:36:26,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:36:26,138 INFO L93 Difference]: Finished difference Result 126 states and 170 transitions. [2019-11-20 05:36:26,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 05:36:26,139 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 126 states and 170 transitions. [2019-11-20 05:36:26,142 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 88 [2019-11-20 05:36:26,144 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 126 states to 126 states and 170 transitions. [2019-11-20 05:36:26,144 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 126 [2019-11-20 05:36:26,145 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 126 [2019-11-20 05:36:26,145 INFO L73 IsDeterministic]: Start isDeterministic. Operand 126 states and 170 transitions. [2019-11-20 05:36:26,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 05:36:26,146 INFO L688 BuchiCegarLoop]: Abstraction has 126 states and 170 transitions. [2019-11-20 05:36:26,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states and 170 transitions. [2019-11-20 05:36:26,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2019-11-20 05:36:26,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2019-11-20 05:36:26,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 170 transitions. [2019-11-20 05:36:26,160 INFO L711 BuchiCegarLoop]: Abstraction has 126 states and 170 transitions. [2019-11-20 05:36:26,160 INFO L591 BuchiCegarLoop]: Abstraction has 126 states and 170 transitions. [2019-11-20 05:36:26,160 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-20 05:36:26,160 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 126 states and 170 transitions. [2019-11-20 05:36:26,163 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 88 [2019-11-20 05:36:26,164 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 05:36:26,164 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 05:36:26,166 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:36:26,168 INFO L850 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] [2019-11-20 05:36:26,168 INFO L794 eck$LassoCheckResult]: Stem: 443#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~head~0.base, ~head~0.offset := 0, 0;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(13);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string44.base, #t~string44.offset, 1);call write~init~int(110, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 2 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(102, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(102, #t~string46.base, 2 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 3 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string48.base, #t~string48.offset, 1);call write~init~int(80, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(117, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(109, #t~string48.base, 3 + #t~string48.offset, 1);call write~init~int(112, #t~string48.base, 4 + #t~string48.offset, 1);call write~init~int(58, #t~string48.base, 5 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 6 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string50.base, #t~string50.offset, 1);call write~init~int(110, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 2 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(102, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(102, #t~string52.base, 2 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 3 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string54.base, #t~string54.offset, 1);call write~init~int(32, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string56.base, #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 1 + #t~string56.offset, 1);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(77, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(101, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(116, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(104, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string65.base, #t~string65.offset, 1);call write~init~int(82, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(73, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(84, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 4 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(75, #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.allocOnStack(2);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~switchedOnBeforeTS~0 := 0; 401#L-1 havoc main_#res;havoc main_#t~ret59, main_~retValue_acc~8, main_~tmp~6;havoc main_~retValue_acc~8;havoc main_~tmp~6; 397#L665 havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 398#L673 main_#t~ret59 := valid_product_#res;main_~tmp~6 := main_#t~ret59;havoc main_#t~ret59; 428#L762 assume 0 != main_~tmp~6; 472#L737 ~switchedOnBeforeTS~0 := 0; 462#L886 havoc test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 463#L907-1 [2019-11-20 05:36:26,169 INFO L796 eck$LassoCheckResult]: Loop: 463#L907-1 assume !false; 454#L421 assume test_~splverifierCounter~0 < 4; 455#L422 test_~tmp~3 := test_#t~nondet35;havoc test_#t~nondet35; 471#L430 assume !(0 != test_~tmp~3); 396#L430-1 test_~tmp___0~0 := test_#t~nondet36;havoc test_#t~nondet36; 461#L440 assume !(0 != test_~tmp___0~0); 453#L440-1 test_~tmp___2~0 := test_#t~nondet37;havoc test_#t~nondet37; 425#L450 assume 0 != test_~tmp___2~0; 427#L456-2 havoc __utac_acc__Specification5_spec__2_#t~ret70;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; 474#L580 __utac_acc__Specification5_spec__2_#t~ret70 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret70;havoc __utac_acc__Specification5_spec__2_#t~ret70; 434#L896 assume !(0 != ~pumpRunning~0); 435#L495 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret39, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 457#L527 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret57, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 458#L869 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 438#L874 isHighWaterLevel_#t~ret57 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret57;havoc isHighWaterLevel_#t~ret57; 436#L629 assume 0 != isHighWaterLevel_~tmp~5;isHighWaterLevel_~tmp___0~1 := 0; 409#L629-2 isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; 410#L635 processEnvironment_#t~ret39 := isHighWaterLevel_#res;processEnvironment_~tmp~4 := processEnvironment_#t~ret39;havoc processEnvironment_#t~ret39; 444#L531 assume !(0 != processEnvironment_~tmp~4); 446#L502 havoc __utac_acc__Specification5_spec__3_#t~ret71, __utac_acc__Specification5_spec__3_#t~ret72, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 517#L861 __utac_acc__Specification5_spec__3_#t~ret71 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret71;havoc __utac_acc__Specification5_spec__3_#t~ret71; 511#L907 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7); 463#L907-1 [2019-11-20 05:36:26,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:36:26,170 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-11-20 05:36:26,170 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:36:26,171 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166868530] [2019-11-20 05:36:26,171 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:36:26,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:36:26,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:36:26,305 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 05:36:26,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:36:26,308 INFO L82 PathProgramCache]: Analyzing trace with hash 393719183, now seen corresponding path program 1 times [2019-11-20 05:36:26,308 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:36:26,309 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815305727] [2019-11-20 05:36:26,309 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:36:26,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:36:26,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:36:26,384 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815305727] [2019-11-20 05:36:26,384 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 05:36:26,384 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 05:36:26,385 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588717568] [2019-11-20 05:36:26,386 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-20 05:36:26,386 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:36:26,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 05:36:26,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 05:36:26,386 INFO L87 Difference]: Start difference. First operand 126 states and 170 transitions. cyclomatic complexity: 46 Second operand 5 states. [2019-11-20 05:36:26,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:36:26,600 INFO L93 Difference]: Finished difference Result 466 states and 633 transitions. [2019-11-20 05:36:26,601 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 05:36:26,601 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 466 states and 633 transitions. [2019-11-20 05:36:26,607 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 325 [2019-11-20 05:36:26,612 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 466 states to 466 states and 633 transitions. [2019-11-20 05:36:26,613 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 466 [2019-11-20 05:36:26,614 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 466 [2019-11-20 05:36:26,614 INFO L73 IsDeterministic]: Start isDeterministic. Operand 466 states and 633 transitions. [2019-11-20 05:36:26,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 05:36:26,622 INFO L688 BuchiCegarLoop]: Abstraction has 466 states and 633 transitions. [2019-11-20 05:36:26,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states and 633 transitions. [2019-11-20 05:36:26,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 242. [2019-11-20 05:36:26,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2019-11-20 05:36:26,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 321 transitions. [2019-11-20 05:36:26,650 INFO L711 BuchiCegarLoop]: Abstraction has 242 states and 321 transitions. [2019-11-20 05:36:26,650 INFO L591 BuchiCegarLoop]: Abstraction has 242 states and 321 transitions. [2019-11-20 05:36:26,650 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-20 05:36:26,650 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 242 states and 321 transitions. [2019-11-20 05:36:26,653 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 174 [2019-11-20 05:36:26,654 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 05:36:26,654 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 05:36:26,655 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:36:26,656 INFO L850 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] [2019-11-20 05:36:26,658 INFO L794 eck$LassoCheckResult]: Stem: 1057#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~head~0.base, ~head~0.offset := 0, 0;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(13);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string44.base, #t~string44.offset, 1);call write~init~int(110, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 2 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(102, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(102, #t~string46.base, 2 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 3 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string48.base, #t~string48.offset, 1);call write~init~int(80, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(117, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(109, #t~string48.base, 3 + #t~string48.offset, 1);call write~init~int(112, #t~string48.base, 4 + #t~string48.offset, 1);call write~init~int(58, #t~string48.base, 5 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 6 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string50.base, #t~string50.offset, 1);call write~init~int(110, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 2 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(102, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(102, #t~string52.base, 2 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 3 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string54.base, #t~string54.offset, 1);call write~init~int(32, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string56.base, #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 1 + #t~string56.offset, 1);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(77, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(101, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(116, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(104, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string65.base, #t~string65.offset, 1);call write~init~int(82, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(73, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(84, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 4 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(75, #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.allocOnStack(2);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~switchedOnBeforeTS~0 := 0; 1012#L-1 havoc main_#res;havoc main_#t~ret59, main_~retValue_acc~8, main_~tmp~6;havoc main_~retValue_acc~8;havoc main_~tmp~6; 1008#L665 havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 1009#L673 main_#t~ret59 := valid_product_#res;main_~tmp~6 := main_#t~ret59;havoc main_#t~ret59; 1041#L762 assume 0 != main_~tmp~6; 1093#L737 ~switchedOnBeforeTS~0 := 0; 1077#L886 havoc test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1049#L907-1 [2019-11-20 05:36:26,658 INFO L796 eck$LassoCheckResult]: Loop: 1049#L907-1 assume !false; 1050#L421 assume test_~splverifierCounter~0 < 4; 1068#L422 test_~tmp~3 := test_#t~nondet35;havoc test_#t~nondet35; 1240#L430 assume !(0 != test_~tmp~3); 1224#L430-1 test_~tmp___0~0 := test_#t~nondet36;havoc test_#t~nondet36; 1223#L440 assume !(0 != test_~tmp___0~0); 1206#L440-1 test_~tmp___2~0 := test_#t~nondet37;havoc test_#t~nondet37; 1205#L450 assume 0 != test_~tmp___2~0; 1202#L456-2 havoc __utac_acc__Specification5_spec__2_#t~ret70;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; 1199#L580 __utac_acc__Specification5_spec__2_#t~ret70 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret70;havoc __utac_acc__Specification5_spec__2_#t~ret70; 1198#L896 assume !(0 != ~pumpRunning~0); 1197#L495 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret39, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 1196#L527 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret57, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 1110#L869 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 1111#L874 isHighWaterLevel_#t~ret57 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret57;havoc isHighWaterLevel_#t~ret57; 1048#L629 assume 0 != isHighWaterLevel_~tmp~5;isHighWaterLevel_~tmp___0~1 := 0; 1019#L629-2 isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; 1020#L635 processEnvironment_#t~ret39 := isHighWaterLevel_#res;processEnvironment_~tmp~4 := processEnvironment_#t~ret39;havoc processEnvironment_#t~ret39; 1058#L531 assume !(0 != processEnvironment_~tmp~4); 1060#L502 havoc __utac_acc__Specification5_spec__3_#t~ret71, __utac_acc__Specification5_spec__3_#t~ret72, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 1078#L861 __utac_acc__Specification5_spec__3_#t~ret71 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret71;havoc __utac_acc__Specification5_spec__3_#t~ret71; 1130#L907 assume 2 != __utac_acc__Specification5_spec__3_~tmp~7;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; 1131#L580-1 __utac_acc__Specification5_spec__3_#t~ret72 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~2 := __utac_acc__Specification5_spec__3_#t~ret72;havoc __utac_acc__Specification5_spec__3_#t~ret72; 1072#L911 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2); 1049#L907-1 [2019-11-20 05:36:26,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:36:26,659 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2019-11-20 05:36:26,659 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:36:26,660 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591781235] [2019-11-20 05:36:26,660 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:36:26,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:36:26,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:36:26,744 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 05:36:26,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:36:26,745 INFO L82 PathProgramCache]: Analyzing trace with hash 406998826, now seen corresponding path program 1 times [2019-11-20 05:36:26,745 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:36:26,746 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432529123] [2019-11-20 05:36:26,746 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:36:26,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:36:26,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:36:26,759 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 05:36:26,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:36:26,760 INFO L82 PathProgramCache]: Analyzing trace with hash 266405488, now seen corresponding path program 1 times [2019-11-20 05:36:26,760 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:36:26,761 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247776292] [2019-11-20 05:36:26,761 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:36:26,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:36:26,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:36:26,848 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 05:36:27,051 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2019-11-20 05:36:52,905 WARN L191 SmtUtils]: Spent 25.76 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-11-20 05:37:06,611 WARN L191 SmtUtils]: Spent 13.70 s on a formula simplification that was a NOOP. DAG size: 402 [2019-11-20 05:37:06,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 05:37:06 BoogieIcfgContainer [2019-11-20 05:37:06,686 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-20 05:37:06,686 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 05:37:06,686 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 05:37:06,686 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 05:37:06,687 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:36:24" (3/4) ... [2019-11-20 05:37:06,689 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-20 05:37:06,741 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9546e544-eb4b-45cc-8808-56ae0ddaa543/bin/uautomizer/witness.graphml [2019-11-20 05:37:06,741 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 05:37:06,743 INFO L168 Benchmark]: Toolchain (without parser) took 43363.77 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 309.3 MB). Free memory was 950.1 MB in the beginning and 1.2 GB in the end (delta: -269.2 MB). Peak memory consumption was 40.2 MB. Max. memory is 11.5 GB. [2019-11-20 05:37:06,743 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 05:37:06,744 INFO L168 Benchmark]: CACSL2BoogieTranslator took 583.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -162.0 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2019-11-20 05:37:06,744 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.22 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-11-20 05:37:06,745 INFO L168 Benchmark]: Boogie Preprocessor took 39.05 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 05:37:06,745 INFO L168 Benchmark]: RCFGBuilder took 793.25 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: 56.1 MB). Peak memory consumption was 56.1 MB. Max. memory is 11.5 GB. [2019-11-20 05:37:06,746 INFO L168 Benchmark]: BuchiAutomizer took 41823.85 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 178.3 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -178.6 MB). Peak memory consumption was 409.0 MB. Max. memory is 11.5 GB. [2019-11-20 05:37:06,746 INFO L168 Benchmark]: Witness Printer took 55.07 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2019-11-20 05:37:06,749 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 583.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -162.0 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 65.22 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.05 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 793.25 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: 56.1 MB). Peak memory consumption was 56.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 41823.85 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 178.3 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -178.6 MB). Peak memory consumption was 409.0 MB. Max. memory is 11.5 GB. * Witness Printer took 55.07 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 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 242 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 41.7s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 41.0s. Construction of modules took 0.3s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 224 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 242 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 387 SDtfs, 971 SDslu, 497 SDs, 0 SdLazy, 131 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s 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: 420]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=247} State at position 1 is {NULL=0, NULL=0, NULL=0, retValue_acc=1, NULL=247, NULL=263, NULL=0, NULL=0, NULL=262, retValue_acc=0, NULL=0, NULL=259, methaneLevelCritical=0, tmp=1, tmp___0=0, retValue_acc=0, tmp=0, NULL=0, NULL=0, NULL=0, tmp___1=0, NULL=270, NULL=248, NULL=251, NULL=271, cleanupTimeShifts=4, switchedOnBeforeTS=0, NULL=265, NULL=272, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@69ceb8fc=0, NULL=258, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@687df86=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@42b80709=57, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@742ae66e=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@20e53d5e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@67bfab9=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=254, \result=1, NULL=0, NULL=0, \result=0, NULL=269, NULL=0, tmp___0=0, NULL=0, NULL=0, NULL=0, \result=1, NULL=250, head=0, pumpRunning=0, tmp___0=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@40558819=0, NULL=257, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@52fb2d2c=0, NULL=268, NULL=0, NULL=0, tmp=1, \result=1, NULL=261, NULL=253, NULL=256, retValue_acc=1, NULL=260, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6520f428=0, tmp___2=57, tmp=1, retValue_acc=1, NULL=255, splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25c4e9c5=0, head=0, tmp=0, NULL=0, NULL=267, NULL=249, NULL=0, NULL=266, NULL=0, NULL=0, NULL=264, NULL=0, NULL=252, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L483] int pumpRunning = 0; [L484] int systemActive = 1; [L678] int cleanupTimeShifts = 4; [L786] int waterLevel = 1; [L787] int methaneLevelCritical = 0; [L880] int switchedOnBeforeTS ; [L753] int retValue_acc ; [L754] int tmp ; [L669] int retValue_acc ; [L672] retValue_acc = 1 [L673] return (retValue_acc); [L760] tmp = valid_product() [L762] COND TRUE \read(tmp) [L885] switchedOnBeforeTS = 0 [L411] int splverifierCounter ; [L412] int tmp ; [L413] int tmp___0 ; [L414] int tmp___1 ; [L415] int tmp___2 ; [L418] splverifierCounter = 0 Loop: [L420] COND TRUE 1 [L422] COND TRUE splverifierCounter < 4 [L428] tmp = __VERIFIER_nondet_int() [L430] COND FALSE !(\read(tmp)) [L438] tmp___0 = __VERIFIER_nondet_int() [L440] COND FALSE !(\read(tmp___0)) [L448] tmp___2 = __VERIFIER_nondet_int() [L450] COND TRUE \read(tmp___2) [L576] int retValue_acc ; [L579] retValue_acc = pumpRunning [L580] return (retValue_acc); [L894] switchedOnBeforeTS = isPumpRunning() [L495] COND FALSE !(\read(pumpRunning)) [L502] COND TRUE \read(systemActive) [L524] int tmp ; [L527] COND TRUE ! pumpRunning [L621] int retValue_acc ; [L622] int tmp ; [L623] int tmp___0 ; [L866] int retValue_acc ; [L869] COND TRUE waterLevel < 2 [L870] retValue_acc = 1 [L871] return (retValue_acc); [L627] tmp = isHighWaterSensorDry() [L629] COND TRUE \read(tmp) [L630] tmp___0 = 0 [L634] retValue_acc = tmp___0 [L635] return (retValue_acc); [L529] tmp = isHighWaterLevel() [L531] COND FALSE !(\read(tmp)) [L900] int tmp ; [L901] int tmp___0 ; [L857] int retValue_acc ; [L860] retValue_acc = waterLevel [L861] return (retValue_acc); [L905] tmp = getWaterLevel() [L907] COND TRUE tmp != 2 [L576] int retValue_acc ; [L579] retValue_acc = pumpRunning [L580] return (retValue_acc); [L909] tmp___0 = isPumpRunning() [L911] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...