./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product56.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_9286aadf-af06-4a6d-bacf-e0b6d3c722d6/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_9286aadf-af06-4a6d-bacf-e0b6d3c722d6/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9286aadf-af06-4a6d-bacf-e0b6d3c722d6/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9286aadf-af06-4a6d-bacf-e0b6d3c722d6/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product56.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9286aadf-af06-4a6d-bacf-e0b6d3c722d6/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9286aadf-af06-4a6d-bacf-e0b6d3c722d6/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 38247fcadf5b4c668eea6d964bf6488ba6812482 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 09:56:30,834 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 09:56:30,836 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 09:56:30,846 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 09:56:30,847 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 09:56:30,848 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 09:56:30,849 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 09:56:30,851 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 09:56:30,852 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 09:56:30,853 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 09:56:30,854 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 09:56:30,855 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 09:56:30,855 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 09:56:30,856 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 09:56:30,857 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 09:56:30,858 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 09:56:30,859 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 09:56:30,860 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 09:56:30,862 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 09:56:30,864 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 09:56:30,865 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 09:56:30,866 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 09:56:30,867 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 09:56:30,868 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 09:56:30,873 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 09:56:30,874 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 09:56:30,874 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 09:56:30,875 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 09:56:30,875 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 09:56:30,876 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 09:56:30,876 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 09:56:30,877 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 09:56:30,877 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 09:56:30,878 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 09:56:30,879 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 09:56:30,879 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 09:56:30,880 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 09:56:30,880 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 09:56:30,880 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 09:56:30,881 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 09:56:30,882 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 09:56:30,882 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9286aadf-af06-4a6d-bacf-e0b6d3c722d6/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-20 09:56:30,910 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 09:56:30,910 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 09:56:30,912 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 09:56:30,912 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 09:56:30,912 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 09:56:30,913 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 09:56:30,913 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 09:56:30,913 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 09:56:30,913 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 09:56:30,913 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 09:56:30,914 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 09:56:30,914 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 09:56:30,914 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 09:56:30,915 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 09:56:30,915 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 09:56:30,915 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 09:56:30,915 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 09:56:30,915 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 09:56:30,915 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 09:56:30,916 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 09:56:30,916 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 09:56:30,916 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 09:56:30,916 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 09:56:30,916 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 09:56:30,917 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 09:56:30,917 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 09:56:30,917 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 09:56:30,917 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 09:56:30,917 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 09:56:30,917 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 09:56:30,918 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 09:56:30,919 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 09:56:30,919 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_9286aadf-af06-4a6d-bacf-e0b6d3c722d6/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 -> 38247fcadf5b4c668eea6d964bf6488ba6812482 [2019-11-20 09:56:31,069 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 09:56:31,078 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 09:56:31,082 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 09:56:31,083 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 09:56:31,083 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 09:56:31,084 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9286aadf-af06-4a6d-bacf-e0b6d3c722d6/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product56.cil.c [2019-11-20 09:56:31,146 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9286aadf-af06-4a6d-bacf-e0b6d3c722d6/bin/uautomizer/data/5a25cdf25/2519ac5ccdc949febe8276275e1fec72/FLAG6066d6dd6 [2019-11-20 09:56:31,658 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 09:56:31,665 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9286aadf-af06-4a6d-bacf-e0b6d3c722d6/sv-benchmarks/c/product-lines/minepump_spec5_product56.cil.c [2019-11-20 09:56:31,682 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9286aadf-af06-4a6d-bacf-e0b6d3c722d6/bin/uautomizer/data/5a25cdf25/2519ac5ccdc949febe8276275e1fec72/FLAG6066d6dd6 [2019-11-20 09:56:32,160 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9286aadf-af06-4a6d-bacf-e0b6d3c722d6/bin/uautomizer/data/5a25cdf25/2519ac5ccdc949febe8276275e1fec72 [2019-11-20 09:56:32,162 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 09:56:32,163 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 09:56:32,164 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 09:56:32,164 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 09:56:32,167 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 09:56:32,168 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:56:32" (1/1) ... [2019-11-20 09:56:32,170 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@452de228 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:56:32, skipping insertion in model container [2019-11-20 09:56:32,170 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:56:32" (1/1) ... [2019-11-20 09:56:32,177 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 09:56:32,218 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 09:56:32,560 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 09:56:32,573 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 09:56:32,679 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 09:56:32,710 INFO L192 MainTranslator]: Completed translation [2019-11-20 09:56:32,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:56:32 WrapperNode [2019-11-20 09:56:32,711 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 09:56:32,711 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 09:56:32,711 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 09:56:32,712 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 09:56:32,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:56:32" (1/1) ... [2019-11-20 09:56:32,734 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:56:32" (1/1) ... [2019-11-20 09:56:32,794 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 09:56:32,794 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 09:56:32,794 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 09:56:32,794 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 09:56:32,801 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:56:32" (1/1) ... [2019-11-20 09:56:32,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:56:32" (1/1) ... [2019-11-20 09:56:32,808 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:56:32" (1/1) ... [2019-11-20 09:56:32,809 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:56:32" (1/1) ... [2019-11-20 09:56:32,838 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:56:32" (1/1) ... [2019-11-20 09:56:32,857 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:56:32" (1/1) ... [2019-11-20 09:56:32,861 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:56:32" (1/1) ... [2019-11-20 09:56:32,872 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 09:56:32,872 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 09:56:32,872 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 09:56:32,872 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 09:56:32,873 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:56:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9286aadf-af06-4a6d-bacf-e0b6d3c722d6/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 09:56:32,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 09:56:32,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-20 09:56:32,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 09:56:32,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 09:56:33,809 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 09:56:33,810 INFO L285 CfgBuilder]: Removed 296 assume(true) statements. [2019-11-20 09:56:33,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:56:33 BoogieIcfgContainer [2019-11-20 09:56:33,812 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 09:56:33,812 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 09:56:33,812 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 09:56:33,815 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 09:56:33,816 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 09:56:33,816 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 09:56:32" (1/3) ... [2019-11-20 09:56:33,818 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@c1cfd89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 09:56:33, skipping insertion in model container [2019-11-20 09:56:33,818 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 09:56:33,818 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:56:32" (2/3) ... [2019-11-20 09:56:33,819 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@c1cfd89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 09:56:33, skipping insertion in model container [2019-11-20 09:56:33,819 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 09:56:33,819 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:56:33" (3/3) ... [2019-11-20 09:56:33,824 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product56.cil.c [2019-11-20 09:56:33,877 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 09:56:33,877 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 09:56:33,877 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 09:56:33,878 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 09:56:33,878 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 09:56:33,878 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 09:56:33,878 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 09:56:33,878 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 09:56:33,897 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 197 states. [2019-11-20 09:56:33,927 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 129 [2019-11-20 09:56:33,927 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 09:56:33,928 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 09:56:33,936 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:56:33,936 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:56:33,936 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 09:56:33,936 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 197 states. [2019-11-20 09:56:33,946 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 129 [2019-11-20 09:56:33,947 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 09:56:33,947 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 09:56:33,948 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:56:33,948 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:56:33,953 INFO L794 eck$LassoCheckResult]: Stem: 85#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4; 15#L-1true havoc main_#res;havoc main_#t~ret75, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 156#L504true havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 82#L512true main_#t~ret75 := valid_product_#res;main_~tmp~10 := main_#t~ret75;havoc main_#t~ret75; 83#L1024true assume 0 != main_~tmp~10; 75#L1000true ~switchedOnBeforeTS~0 := 0; 71#L532true havoc test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_#t~nondet35, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 173#L553-1true [2019-11-20 09:56:33,954 INFO L796 eck$LassoCheckResult]: Loop: 173#L553-1true assume !false; 179#L421true assume test_~splverifierCounter~0 < 4; 79#L422true test_~tmp~5 := test_#t~nondet32;havoc test_#t~nondet32; 148#L430true assume !(0 != test_~tmp~5); 149#L430-1true test_~tmp___0~2 := test_#t~nondet33;havoc test_#t~nondet33; 87#L440true assume !(0 != test_~tmp___0~2); 88#L440-1true test_~tmp___2~0 := test_#t~nondet34;havoc test_#t~nondet34; 42#L450true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 113#L458-1true havoc __utac_acc__Specification5_spec__2_#t~ret37;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 18#L307true __utac_acc__Specification5_spec__2_#t~ret37 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret37;havoc __utac_acc__Specification5_spec__2_#t~ret37; 172#L542true assume !(0 != ~pumpRunning~0); 102#L170true assume !(0 != ~systemActive~0); 128#L177true havoc __utac_acc__Specification5_spec__3_#t~ret38, __utac_acc__Specification5_spec__3_#t~ret39, __utac_acc__Specification5_spec__3_~tmp~6, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~6;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 195#L123true __utac_acc__Specification5_spec__3_#t~ret38 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret38;havoc __utac_acc__Specification5_spec__3_#t~ret38; 171#L553true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6); 173#L553-1true [2019-11-20 09:56:33,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:56:33,959 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-11-20 09:56:33,967 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:56:33,967 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546013570] [2019-11-20 09:56:33,967 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:56:34,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 09:56:34,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 09:56:34,238 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 09:56:34,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:56:34,239 INFO L82 PathProgramCache]: Analyzing trace with hash 680336182, now seen corresponding path program 1 times [2019-11-20 09:56:34,239 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:56:34,240 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244772818] [2019-11-20 09:56:34,240 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:56:34,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:56:34,292 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 09:56:34,292 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244772818] [2019-11-20 09:56:34,292 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:56:34,293 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 09:56:34,293 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431136466] [2019-11-20 09:56:34,298 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-20 09:56:34,299 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 09:56:34,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 09:56:34,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 09:56:34,315 INFO L87 Difference]: Start difference. First operand 197 states. Second operand 3 states. [2019-11-20 09:56:34,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:56:34,410 INFO L93 Difference]: Finished difference Result 387 states and 575 transitions. [2019-11-20 09:56:34,415 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 09:56:34,417 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 387 states and 575 transitions. [2019-11-20 09:56:34,434 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 254 [2019-11-20 09:56:34,443 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 387 states to 373 states and 560 transitions. [2019-11-20 09:56:34,444 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 373 [2019-11-20 09:56:34,445 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 373 [2019-11-20 09:56:34,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 373 states and 560 transitions. [2019-11-20 09:56:34,448 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 09:56:34,448 INFO L688 BuchiCegarLoop]: Abstraction has 373 states and 560 transitions. [2019-11-20 09:56:34,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states and 560 transitions. [2019-11-20 09:56:34,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 371. [2019-11-20 09:56:34,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 371 states. [2019-11-20 09:56:34,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 557 transitions. [2019-11-20 09:56:34,503 INFO L711 BuchiCegarLoop]: Abstraction has 371 states and 557 transitions. [2019-11-20 09:56:34,503 INFO L591 BuchiCegarLoop]: Abstraction has 371 states and 557 transitions. [2019-11-20 09:56:34,503 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-20 09:56:34,504 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 371 states and 557 transitions. [2019-11-20 09:56:34,507 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 252 [2019-11-20 09:56:34,507 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 09:56:34,507 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 09:56:34,508 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:56:34,508 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:56:34,508 INFO L794 eck$LassoCheckResult]: Stem: 795#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4; 616#L-1 havoc main_#res;havoc main_#t~ret75, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 617#L504 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 781#L512 main_#t~ret75 := valid_product_#res;main_~tmp~10 := main_#t~ret75;havoc main_#t~ret75; 791#L1024 assume 0 != main_~tmp~10; 755#L1000 ~switchedOnBeforeTS~0 := 0; 752#L532 havoc test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_#t~nondet35, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 726#L553-1 [2019-11-20 09:56:34,509 INFO L796 eck$LassoCheckResult]: Loop: 726#L553-1 assume !false; 796#L421 assume test_~splverifierCounter~0 < 4; 762#L422 test_~tmp~5 := test_#t~nondet32;havoc test_#t~nondet32; 763#L430 assume !(0 != test_~tmp~5); 772#L430-1 test_~tmp___0~2 := test_#t~nondet33;havoc test_#t~nondet33; 773#L440 assume !(0 != test_~tmp___0~2); 767#L440-1 test_~tmp___2~0 := test_#t~nondet34;havoc test_#t~nondet34; 838#L450 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 670#L458-1 havoc __utac_acc__Specification5_spec__2_#t~ret37;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 622#L307 __utac_acc__Specification5_spec__2_#t~ret37 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret37;havoc __utac_acc__Specification5_spec__2_#t~ret37; 623#L542 assume !(0 != ~pumpRunning~0); 832#L170 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret12, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 833#L254 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret11, processEnvironment__wrappee__lowWaterSensor_~tmp~1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~1; 859#L228-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret10, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 671#L202-3 assume !(0 == ~pumpRunning~0); 672#L177 havoc __utac_acc__Specification5_spec__3_#t~ret38, __utac_acc__Specification5_spec__3_#t~ret39, __utac_acc__Specification5_spec__3_~tmp~6, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~6;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 827#L123 __utac_acc__Specification5_spec__3_#t~ret38 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret38;havoc __utac_acc__Specification5_spec__3_#t~ret38; 793#L553 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6); 726#L553-1 [2019-11-20 09:56:34,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:56:34,509 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-11-20 09:56:34,509 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:56:34,510 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216918542] [2019-11-20 09:56:34,510 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:56:34,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 09:56:34,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 09:56:34,610 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 09:56:34,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:56:34,611 INFO L82 PathProgramCache]: Analyzing trace with hash 1848123806, now seen corresponding path program 1 times [2019-11-20 09:56:34,611 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:56:34,611 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581007127] [2019-11-20 09:56:34,612 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:56:34,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:56:34,625 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 09:56:34,626 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581007127] [2019-11-20 09:56:34,626 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:56:34,626 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 09:56:34,626 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757034528] [2019-11-20 09:56:34,627 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-20 09:56:34,627 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 09:56:34,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 09:56:34,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 09:56:34,627 INFO L87 Difference]: Start difference. First operand 371 states and 557 transitions. cyclomatic complexity: 189 Second operand 3 states. [2019-11-20 09:56:34,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:56:34,783 INFO L93 Difference]: Finished difference Result 398 states and 559 transitions. [2019-11-20 09:56:34,783 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 09:56:34,784 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 398 states and 559 transitions. [2019-11-20 09:56:34,791 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 279 [2019-11-20 09:56:34,796 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 398 states to 398 states and 559 transitions. [2019-11-20 09:56:34,798 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 398 [2019-11-20 09:56:34,800 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 398 [2019-11-20 09:56:34,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 398 states and 559 transitions. [2019-11-20 09:56:34,804 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 09:56:34,806 INFO L688 BuchiCegarLoop]: Abstraction has 398 states and 559 transitions. [2019-11-20 09:56:34,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states and 559 transitions. [2019-11-20 09:56:34,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 398. [2019-11-20 09:56:34,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 398 states. [2019-11-20 09:56:34,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 559 transitions. [2019-11-20 09:56:34,838 INFO L711 BuchiCegarLoop]: Abstraction has 398 states and 559 transitions. [2019-11-20 09:56:34,838 INFO L591 BuchiCegarLoop]: Abstraction has 398 states and 559 transitions. [2019-11-20 09:56:34,845 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-20 09:56:34,846 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 398 states and 559 transitions. [2019-11-20 09:56:34,849 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 279 [2019-11-20 09:56:34,850 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 09:56:34,850 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 09:56:34,851 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:56:34,853 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 09:56:34,853 INFO L794 eck$LassoCheckResult]: Stem: 1518#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4; 1385#L-1 havoc main_#res;havoc main_#t~ret75, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 1386#L504 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 1510#L512 main_#t~ret75 := valid_product_#res;main_~tmp~10 := main_#t~ret75;havoc main_#t~ret75; 1515#L1024 assume 0 != main_~tmp~10; 1490#L1000 ~switchedOnBeforeTS~0 := 0; 1487#L532 havoc test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_#t~nondet35, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1488#L553-1 [2019-11-20 09:56:34,854 INFO L796 eck$LassoCheckResult]: Loop: 1488#L553-1 assume !false; 1562#L421 assume test_~splverifierCounter~0 < 4; 1557#L422 test_~tmp~5 := test_#t~nondet32;havoc test_#t~nondet32; 1558#L430 assume !(0 != test_~tmp~5); 1552#L430-1 test_~tmp___0~2 := test_#t~nondet33;havoc test_#t~nondet33; 1553#L440 assume !(0 != test_~tmp___0~2); 1547#L440-1 test_~tmp___2~0 := test_#t~nondet34;havoc test_#t~nondet34; 1548#L450 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1439#L458-1 havoc __utac_acc__Specification5_spec__2_#t~ret37;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 1391#L307 __utac_acc__Specification5_spec__2_#t~ret37 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret37;havoc __utac_acc__Specification5_spec__2_#t~ret37; 1392#L542 assume !(0 != ~pumpRunning~0); 1517#L170 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret12, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 1481#L254 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret11, processEnvironment__wrappee__lowWaterSensor_~tmp~1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~1; 1482#L228-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret10, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 1428#L202-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret30, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 1389#L131-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 1390#L136-3 isHighWaterLevel_#t~ret30 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret30;havoc isHighWaterLevel_#t~ret30; 1418#L356-9 assume 0 != isHighWaterLevel_~tmp~3;isHighWaterLevel_~tmp___0~0 := 0; 1415#L356-11 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 1399#L362-3 processEnvironment__wrappee__highWaterSensor_#t~ret10 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret10;havoc processEnvironment__wrappee__highWaterSensor_#t~ret10; 1400#L206-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 1479#L177 havoc __utac_acc__Specification5_spec__3_#t~ret38, __utac_acc__Specification5_spec__3_#t~ret39, __utac_acc__Specification5_spec__3_~tmp~6, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~6;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 1568#L123 __utac_acc__Specification5_spec__3_#t~ret38 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret38;havoc __utac_acc__Specification5_spec__3_#t~ret38; 1569#L553 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6); 1488#L553-1 [2019-11-20 09:56:34,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:56:34,855 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-11-20 09:56:34,855 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:56:34,855 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584974908] [2019-11-20 09:56:34,856 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:56:34,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 09:56:34,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 09:56:35,007 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 09:56:35,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:56:35,008 INFO L82 PathProgramCache]: Analyzing trace with hash 1709468010, now seen corresponding path program 1 times [2019-11-20 09:56:35,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:56:35,009 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127924336] [2019-11-20 09:56:35,009 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:56:35,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:56:35,057 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 09:56:35,057 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127924336] [2019-11-20 09:56:35,057 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:56:35,057 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 09:56:35,058 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27080316] [2019-11-20 09:56:35,058 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-20 09:56:35,058 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 09:56:35,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 09:56:35,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 09:56:35,059 INFO L87 Difference]: Start difference. First operand 398 states and 559 transitions. cyclomatic complexity: 164 Second operand 5 states. [2019-11-20 09:56:35,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:56:35,411 INFO L93 Difference]: Finished difference Result 1823 states and 2579 transitions. [2019-11-20 09:56:35,412 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 09:56:35,412 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1823 states and 2579 transitions. [2019-11-20 09:56:35,429 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 1262 [2019-11-20 09:56:35,446 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1823 states to 1823 states and 2579 transitions. [2019-11-20 09:56:35,446 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1823 [2019-11-20 09:56:35,449 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1823 [2019-11-20 09:56:35,449 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1823 states and 2579 transitions. [2019-11-20 09:56:35,452 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 09:56:35,452 INFO L688 BuchiCegarLoop]: Abstraction has 1823 states and 2579 transitions. [2019-11-20 09:56:35,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1823 states and 2579 transitions. [2019-11-20 09:56:35,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1823 to 783. [2019-11-20 09:56:35,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 783 states. [2019-11-20 09:56:35,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 783 states to 783 states and 1087 transitions. [2019-11-20 09:56:35,507 INFO L711 BuchiCegarLoop]: Abstraction has 783 states and 1087 transitions. [2019-11-20 09:56:35,507 INFO L591 BuchiCegarLoop]: Abstraction has 783 states and 1087 transitions. [2019-11-20 09:56:35,507 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-20 09:56:35,507 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 783 states and 1087 transitions. [2019-11-20 09:56:35,512 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 554 [2019-11-20 09:56:35,512 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 09:56:35,512 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 09:56:35,515 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:56:35,515 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, 1, 1] [2019-11-20 09:56:35,515 INFO L794 eck$LassoCheckResult]: Stem: 3769#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4; 3623#L-1 havoc main_#res;havoc main_#t~ret75, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 3624#L504 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 3754#L512 main_#t~ret75 := valid_product_#res;main_~tmp~10 := main_#t~ret75;havoc main_#t~ret75; 3763#L1024 assume 0 != main_~tmp~10; 3735#L1000 ~switchedOnBeforeTS~0 := 0; 3732#L532 havoc test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_#t~nondet35, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 3733#L553-1 [2019-11-20 09:56:35,517 INFO L796 eck$LassoCheckResult]: Loop: 3733#L553-1 assume !false; 4028#L421 assume test_~splverifierCounter~0 < 4; 4027#L422 test_~tmp~5 := test_#t~nondet32;havoc test_#t~nondet32; 4026#L430 assume !(0 != test_~tmp~5); 4024#L430-1 test_~tmp___0~2 := test_#t~nondet33;havoc test_#t~nondet33; 4023#L440 assume !(0 != test_~tmp___0~2); 4021#L440-1 test_~tmp___2~0 := test_#t~nondet34;havoc test_#t~nondet34; 4020#L450 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 3988#L458-1 havoc __utac_acc__Specification5_spec__2_#t~ret37;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 4352#L307 __utac_acc__Specification5_spec__2_#t~ret37 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret37;havoc __utac_acc__Specification5_spec__2_#t~ret37; 3767#L542 assume !(0 != ~pumpRunning~0); 3768#L170 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret12, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 3727#L254 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret11, processEnvironment__wrappee__lowWaterSensor_~tmp~1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~1; 3728#L228-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret10, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 3671#L202-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret30, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 3631#L131-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 3632#L136-3 isHighWaterLevel_#t~ret30 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret30;havoc isHighWaterLevel_#t~ret30; 4102#L356-9 assume 0 != isHighWaterLevel_~tmp~3;isHighWaterLevel_~tmp___0~0 := 0; 4101#L356-11 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 3640#L362-3 processEnvironment__wrappee__highWaterSensor_#t~ret10 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret10;havoc processEnvironment__wrappee__highWaterSensor_#t~ret10; 3641#L206-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 3725#L177 havoc __utac_acc__Specification5_spec__3_#t~ret38, __utac_acc__Specification5_spec__3_#t~ret39, __utac_acc__Specification5_spec__3_~tmp~6, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~6;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 4033#L123 __utac_acc__Specification5_spec__3_#t~ret38 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret38;havoc __utac_acc__Specification5_spec__3_#t~ret38; 4032#L553 assume 2 != __utac_acc__Specification5_spec__3_~tmp~6;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 4031#L307-1 __utac_acc__Specification5_spec__3_#t~ret39 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~3 := __utac_acc__Specification5_spec__3_#t~ret39;havoc __utac_acc__Specification5_spec__3_#t~ret39; 4029#L557 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~3); 3733#L553-1 [2019-11-20 09:56:35,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:56:35,518 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2019-11-20 09:56:35,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:56:35,519 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172384100] [2019-11-20 09:56:35,519 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:56:35,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 09:56:35,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 09:56:35,632 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 09:56:35,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:56:35,633 INFO L82 PathProgramCache]: Analyzing trace with hash 2121242117, now seen corresponding path program 1 times [2019-11-20 09:56:35,634 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:56:35,634 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335986952] [2019-11-20 09:56:35,634 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:56:35,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 09:56:35,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 09:56:35,649 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 09:56:35,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:56:35,650 INFO L82 PathProgramCache]: Analyzing trace with hash 155030475, now seen corresponding path program 1 times [2019-11-20 09:56:35,650 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:56:35,651 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708168033] [2019-11-20 09:56:35,651 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:56:35,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 09:56:35,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 09:56:35,760 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 09:56:35,941 WARN L191 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2019-11-20 09:56:57,281 WARN L191 SmtUtils]: Spent 21.25 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-11-20 09:57:09,821 WARN L191 SmtUtils]: Spent 12.54 s on a formula simplification that was a NOOP. DAG size: 402 [2019-11-20 09:57:09,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 09:57:09 BoogieIcfgContainer [2019-11-20 09:57:09,885 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-20 09:57:09,885 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 09:57:09,885 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 09:57:09,885 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 09:57:09,886 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:56:33" (3/4) ... [2019-11-20 09:57:09,888 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-20 09:57:09,944 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9286aadf-af06-4a6d-bacf-e0b6d3c722d6/bin/uautomizer/witness.graphml [2019-11-20 09:57:09,944 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 09:57:09,946 INFO L168 Benchmark]: Toolchain (without parser) took 37782.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 218.6 MB). Free memory was 938.1 MB in the beginning and 943.4 MB in the end (delta: -5.3 MB). Peak memory consumption was 213.3 MB. Max. memory is 11.5 GB. [2019-11-20 09:57:09,946 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 09:57:09,947 INFO L168 Benchmark]: CACSL2BoogieTranslator took 547.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 938.1 MB in the beginning and 1.1 GB in the end (delta: -189.2 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-11-20 09:57:09,947 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.72 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 09:57:09,948 INFO L168 Benchmark]: Boogie Preprocessor took 77.61 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 09:57:09,948 INFO L168 Benchmark]: RCFGBuilder took 939.62 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: 81.5 MB). Peak memory consumption was 81.5 MB. Max. memory is 11.5 GB. [2019-11-20 09:57:09,949 INFO L168 Benchmark]: BuchiAutomizer took 36072.56 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 73.9 MB). Free memory was 1.0 GB in the beginning and 946.4 MB in the end (delta: 88.6 MB). Peak memory consumption was 227.2 MB. Max. memory is 11.5 GB. [2019-11-20 09:57:09,949 INFO L168 Benchmark]: Witness Printer took 59.36 ms. Allocated memory is still 1.2 GB. Free memory was 946.4 MB in the beginning and 943.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 11.5 GB. [2019-11-20 09:57:09,952 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 547.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 938.1 MB in the beginning and 1.1 GB in the end (delta: -189.2 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 82.72 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 77.61 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 939.62 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: 81.5 MB). Peak memory consumption was 81.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 36072.56 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 73.9 MB). Free memory was 1.0 GB in the beginning and 946.4 MB in the end (delta: 88.6 MB). Peak memory consumption was 227.2 MB. Max. memory is 11.5 GB. * Witness Printer took 59.36 ms. Allocated memory is still 1.2 GB. Free memory was 946.4 MB in the beginning and 943.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 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 5 locations. The remainder module has 783 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 35.9s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 35.0s. 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 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 1042 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 783 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 950 SDtfs, 1462 SDslu, 1515 SDs, 0 SdLazy, 242 SolverSat, 72 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc0 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=8195} State at position 1 is {NULL=0, NULL=8197, NULL=0, NULL=8195, NULL=8196, NULL=8202, NULL=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@755140c8=0, tmp=0, NULL=0, NULL=8213, NULL=0, tmp___1=0, NULL=8212, retValue_acc=0, NULL=8200, cleanupTimeShifts=4, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5f9d8844=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@97387e8=52, NULL=8201, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6cdcab38=0, NULL=0, NULL=0, waterLevel=1, NULL=8218, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2016d2ff=0, NULL=8215, \result=1, retValue_acc=1, head=0, pumpRunning=0, retValue_acc=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@17740b98=0, \result=1, NULL=8209, NULL=0, NULL=0, tmp=1, tmp___0=0, NULL=8199, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6573bcd5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@17986e77=0, NULL=8216, tmp=0, head=0, NULL=8210, NULL=8211, NULL=8203, NULL=0, NULL=0, NULL=8214, NULL=8206, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@16fba54=0, tmp=0, tmp=1, tmp___0=0, NULL=0, tmp=0, switchedOnBeforeTS=0, NULL=8220, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, NULL=8208, \result=1, \result=0, NULL=0, retValue_acc=0, \result=0, tmp___0=0, NULL=8204, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@67e70531=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7cf7b50b=0, NULL=8219, retValue_acc=1, NULL=8198, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1e7d2f2c=0, tmp___2=52, splverifierCounter=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=8207, NULL=8205, NULL=8217, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L48] int waterLevel = 1; [L49] int methaneLevelCritical = 0; [L158] int pumpRunning = 0; [L159] int systemActive = 1; [L526] int switchedOnBeforeTS ; [L744] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L941] int cleanupTimeShifts = 4; [L1015] int retValue_acc ; [L1016] int tmp ; [L508] int retValue_acc ; [L511] retValue_acc = 1 [L512] return (retValue_acc); [L1022] tmp = valid_product() [L1024] COND TRUE \read(tmp) [L531] 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) [L404] systemActive = 1 [L303] int retValue_acc ; [L306] retValue_acc = pumpRunning [L307] return (retValue_acc); [L540] switchedOnBeforeTS = isPumpRunning() [L170] COND FALSE !(\read(pumpRunning)) [L177] COND TRUE \read(systemActive) [L251] int tmp ; [L254] COND FALSE !(\read(pumpRunning)) [L225] int tmp ; [L228] COND FALSE !(\read(pumpRunning)) [L199] int tmp ; [L202] COND TRUE ! pumpRunning [L348] int retValue_acc ; [L349] int tmp ; [L350] int tmp___0 ; [L128] int retValue_acc ; [L131] COND TRUE waterLevel < 2 [L132] retValue_acc = 1 [L133] return (retValue_acc); [L354] tmp = isHighWaterSensorDry() [L356] COND TRUE \read(tmp) [L357] tmp___0 = 0 [L361] retValue_acc = tmp___0 [L362] return (retValue_acc); [L204] tmp = isHighWaterLevel() [L206] COND FALSE !(\read(tmp)) [L546] int tmp ; [L547] int tmp___0 ; [L119] int retValue_acc ; [L122] retValue_acc = waterLevel [L123] return (retValue_acc); [L551] tmp = getWaterLevel() [L553] COND TRUE tmp != 2 [L303] int retValue_acc ; [L306] retValue_acc = pumpRunning [L307] return (retValue_acc); [L555] tmp___0 = isPumpRunning() [L557] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...