./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product19.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_e3ad1984-a1ab-486a-a73c-9bcd73d2eccb/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_e3ad1984-a1ab-486a-a73c-9bcd73d2eccb/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e3ad1984-a1ab-486a-a73c-9bcd73d2eccb/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e3ad1984-a1ab-486a-a73c-9bcd73d2eccb/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product19.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e3ad1984-a1ab-486a-a73c-9bcd73d2eccb/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e3ad1984-a1ab-486a-a73c-9bcd73d2eccb/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 d64d9b1029a36f4dbed006d1e1d8543a0c6e0731 ............................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.25-f470102 [2019-12-07 17:48:30,815 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 17:48:30,816 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 17:48:30,824 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 17:48:30,824 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 17:48:30,825 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 17:48:30,826 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 17:48:30,827 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 17:48:30,828 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 17:48:30,829 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 17:48:30,829 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 17:48:30,830 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 17:48:30,831 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 17:48:30,831 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 17:48:30,832 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 17:48:30,833 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 17:48:30,833 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 17:48:30,834 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 17:48:30,835 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 17:48:30,837 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 17:48:30,838 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 17:48:30,839 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 17:48:30,839 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 17:48:30,840 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 17:48:30,842 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 17:48:30,842 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 17:48:30,842 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 17:48:30,842 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 17:48:30,843 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 17:48:30,843 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 17:48:30,843 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 17:48:30,844 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 17:48:30,844 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 17:48:30,845 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 17:48:30,845 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 17:48:30,845 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 17:48:30,846 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 17:48:30,846 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 17:48:30,846 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 17:48:30,847 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 17:48:30,847 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 17:48:30,848 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e3ad1984-a1ab-486a-a73c-9bcd73d2eccb/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 17:48:30,861 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 17:48:30,861 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 17:48:30,862 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 17:48:30,862 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 17:48:30,862 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 17:48:30,862 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 17:48:30,862 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 17:48:30,863 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 17:48:30,863 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 17:48:30,863 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 17:48:30,863 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 17:48:30,863 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 17:48:30,863 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 17:48:30,863 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 17:48:30,864 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 17:48:30,864 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 17:48:30,864 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 17:48:30,864 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 17:48:30,864 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 17:48:30,864 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 17:48:30,864 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 17:48:30,864 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 17:48:30,865 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 17:48:30,865 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 17:48:30,865 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 17:48:30,865 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 17:48:30,865 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 17:48:30,865 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 17:48:30,865 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 17:48:30,865 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 17:48:30,866 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 17:48:30,866 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 17:48:30,866 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 17:48:30,866 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_e3ad1984-a1ab-486a-a73c-9bcd73d2eccb/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 -> d64d9b1029a36f4dbed006d1e1d8543a0c6e0731 [2019-12-07 17:48:30,976 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 17:48:30,983 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 17:48:30,986 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 17:48:30,986 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 17:48:30,987 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 17:48:30,987 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e3ad1984-a1ab-486a-a73c-9bcd73d2eccb/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product19.cil.c [2019-12-07 17:48:31,028 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e3ad1984-a1ab-486a-a73c-9bcd73d2eccb/bin/uautomizer/data/bfd1aedb5/62a2f93800dd4507842c459d9dd2d8a0/FLAG97a36ac88 [2019-12-07 17:48:31,465 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 17:48:31,466 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e3ad1984-a1ab-486a-a73c-9bcd73d2eccb/sv-benchmarks/c/product-lines/minepump_spec3_product19.cil.c [2019-12-07 17:48:31,476 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e3ad1984-a1ab-486a-a73c-9bcd73d2eccb/bin/uautomizer/data/bfd1aedb5/62a2f93800dd4507842c459d9dd2d8a0/FLAG97a36ac88 [2019-12-07 17:48:31,485 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e3ad1984-a1ab-486a-a73c-9bcd73d2eccb/bin/uautomizer/data/bfd1aedb5/62a2f93800dd4507842c459d9dd2d8a0 [2019-12-07 17:48:31,487 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 17:48:31,488 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 17:48:31,488 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 17:48:31,489 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 17:48:31,491 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 17:48:31,491 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:48:31" (1/1) ... [2019-12-07 17:48:31,493 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@581b80cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:48:31, skipping insertion in model container [2019-12-07 17:48:31,493 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:48:31" (1/1) ... [2019-12-07 17:48:31,498 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 17:48:31,529 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 17:48:31,745 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:48:31,753 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 17:48:31,796 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:48:31,815 INFO L208 MainTranslator]: Completed translation [2019-12-07 17:48:31,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:48:31 WrapperNode [2019-12-07 17:48:31,815 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 17:48:31,816 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 17:48:31,816 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 17:48:31,816 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 17:48:31,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:48:31" (1/1) ... [2019-12-07 17:48:31,833 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:48:31" (1/1) ... [2019-12-07 17:48:31,855 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 17:48:31,856 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 17:48:31,856 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 17:48:31,856 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 17:48:31,862 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:48:31" (1/1) ... [2019-12-07 17:48:31,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:48:31" (1/1) ... [2019-12-07 17:48:31,865 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:48:31" (1/1) ... [2019-12-07 17:48:31,865 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:48:31" (1/1) ... [2019-12-07 17:48:31,872 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:48:31" (1/1) ... [2019-12-07 17:48:31,876 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:48:31" (1/1) ... [2019-12-07 17:48:31,878 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:48:31" (1/1) ... [2019-12-07 17:48:31,881 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 17:48:31,881 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 17:48:31,881 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 17:48:31,881 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 17:48:31,882 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:48:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e3ad1984-a1ab-486a-a73c-9bcd73d2eccb/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 [2019-12-07 17:48:31,924 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 17:48:31,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-07 17:48:31,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 17:48:31,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 17:48:32,277 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 17:48:32,277 INFO L287 CfgBuilder]: Removed 106 assume(true) statements. [2019-12-07 17:48:32,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:48:32 BoogieIcfgContainer [2019-12-07 17:48:32,278 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 17:48:32,278 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 17:48:32,278 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 17:48:32,281 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 17:48:32,281 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 17:48:32,281 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 05:48:31" (1/3) ... [2019-12-07 17:48:32,282 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4745304 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 05:48:32, skipping insertion in model container [2019-12-07 17:48:32,282 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 17:48:32,282 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:48:31" (2/3) ... [2019-12-07 17:48:32,282 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4745304 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 05:48:32, skipping insertion in model container [2019-12-07 17:48:32,282 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 17:48:32,282 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:48:32" (3/3) ... [2019-12-07 17:48:32,283 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product19.cil.c [2019-12-07 17:48:32,311 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 17:48:32,311 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 17:48:32,311 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 17:48:32,312 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 17:48:32,312 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 17:48:32,312 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 17:48:32,312 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 17:48:32,312 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 17:48:32,323 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 80 states. [2019-12-07 17:48:32,340 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2019-12-07 17:48:32,340 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:48:32,340 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:48:32,346 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 17:48:32,346 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:48:32,346 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 17:48:32,346 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 80 states. [2019-12-07 17:48:32,350 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2019-12-07 17:48:32,350 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:48:32,350 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:48:32,350 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 17:48:32,351 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:48:32,354 INFO L794 eck$LassoCheckResult]: Stem: 35#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(13);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string43.base, #t~string43.offset, 1);call write~init~int(77, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(101, #t~string43.base, 2 + #t~string43.offset, 1);call write~init~int(116, #t~string43.base, 3 + #t~string43.offset, 1);call write~init~int(104, #t~string43.base, 4 + #t~string43.offset, 1);call write~init~int(58, #t~string43.base, 5 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 6 + #t~string43.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string45.base, #t~string45.offset, 1);call write~init~int(82, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(73, #t~string45.base, 2 + #t~string45.offset, 1);call write~init~int(84, #t~string45.base, 3 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 4 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(75, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 2 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string49.base, #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 1 + #t~string49.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(13);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);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(80, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(117, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(109, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(112, #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(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(32, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string71.base, #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 1 + #t~string71.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 10#L-1true havoc main_#res;havoc main_#t~ret39, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; 55#L74true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 50#L82true main_#t~ret39 := valid_product_#res;main_~tmp~4 := main_#t~ret39;havoc main_#t~ret39; 5#L577true assume 0 != main_~tmp~4; 32#L553true havoc test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_#t~nondet53, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 70#L105-1true [2019-12-07 17:48:32,354 INFO L796 eck$LassoCheckResult]: Loop: 70#L105-1true assume !false; 26#L695true assume test_~splverifierCounter~0 < 4; 47#L696true test_~tmp~5 := test_#t~nondet50;havoc test_#t~nondet50; 71#L704true assume !(0 != test_~tmp~5); 74#L704-1true test_~tmp___0~1 := test_#t~nondet51;havoc test_#t~nondet51; 54#L714true assume !(0 != test_~tmp___0~1); 33#L714-1true test_~tmp___2~0 := test_#t~nondet52;havoc test_#t~nondet52; 11#L724true assume 0 != test_~tmp___2~0; 62#L730-1true assume !(0 != ~pumpRunning~0); 3#L760true assume !(0 != ~systemActive~0); 9#L767true havoc __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_#t~ret3, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 37#L637true __utac_acc__Specification3_spec__1_#t~ret1 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret1;havoc __utac_acc__Specification3_spec__1_#t~ret1; 42#L99true assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 70#L105-1true [2019-12-07 17:48:32,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:48:32,358 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-12-07 17:48:32,364 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:48:32,364 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642859981] [2019-12-07 17:48:32,365 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:48:32,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:48:32,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:48:32,564 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:48:32,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:48:32,565 INFO L82 PathProgramCache]: Analyzing trace with hash -1673095042, now seen corresponding path program 1 times [2019-12-07 17:48:32,565 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:48:32,565 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772822170] [2019-12-07 17:48:32,565 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:48:32,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:48:32,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:48:32,575 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:48:32,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:48:32,576 INFO L82 PathProgramCache]: Analyzing trace with hash 41183896, now seen corresponding path program 1 times [2019-12-07 17:48:32,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:48:32,577 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674718261] [2019-12-07 17:48:32,577 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:48:32,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:48:32,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:48:32,653 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674718261] [2019-12-07 17:48:32,654 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:48:32,654 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 17:48:32,654 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626611349] [2019-12-07 17:48:32,707 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:48:32,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 17:48:32,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-12-07 17:48:32,718 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 6 states. [2019-12-07 17:48:32,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:48:32,847 INFO L93 Difference]: Finished difference Result 210 states and 291 transitions. [2019-12-07 17:48:32,847 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 17:48:32,848 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 210 states and 291 transitions. [2019-12-07 17:48:32,854 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 133 [2019-12-07 17:48:32,859 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 210 states to 189 states and 270 transitions. [2019-12-07 17:48:32,860 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 189 [2019-12-07 17:48:32,861 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 189 [2019-12-07 17:48:32,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 189 states and 270 transitions. [2019-12-07 17:48:32,862 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 17:48:32,862 INFO L688 BuchiCegarLoop]: Abstraction has 189 states and 270 transitions. [2019-12-07 17:48:32,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states and 270 transitions. [2019-12-07 17:48:32,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 120. [2019-12-07 17:48:32,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2019-12-07 17:48:32,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 171 transitions. [2019-12-07 17:48:32,888 INFO L711 BuchiCegarLoop]: Abstraction has 120 states and 171 transitions. [2019-12-07 17:48:32,888 INFO L591 BuchiCegarLoop]: Abstraction has 120 states and 171 transitions. [2019-12-07 17:48:32,888 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 17:48:32,888 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 120 states and 171 transitions. [2019-12-07 17:48:32,890 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 84 [2019-12-07 17:48:32,890 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:48:32,890 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:48:32,891 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 17:48:32,891 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:48:32,891 INFO L794 eck$LassoCheckResult]: Stem: 355#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(13);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string43.base, #t~string43.offset, 1);call write~init~int(77, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(101, #t~string43.base, 2 + #t~string43.offset, 1);call write~init~int(116, #t~string43.base, 3 + #t~string43.offset, 1);call write~init~int(104, #t~string43.base, 4 + #t~string43.offset, 1);call write~init~int(58, #t~string43.base, 5 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 6 + #t~string43.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string45.base, #t~string45.offset, 1);call write~init~int(82, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(73, #t~string45.base, 2 + #t~string45.offset, 1);call write~init~int(84, #t~string45.base, 3 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 4 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(75, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 2 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string49.base, #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 1 + #t~string49.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(13);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);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(80, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(117, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(109, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(112, #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(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(32, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string71.base, #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 1 + #t~string71.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 320#L-1 havoc main_#res;havoc main_#t~ret39, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; 321#L74 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 370#L82 main_#t~ret39 := valid_product_#res;main_~tmp~4 := main_#t~ret39;havoc main_#t~ret39; 313#L577 assume 0 != main_~tmp~4; 314#L553 havoc test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_#t~nondet53, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 334#L105-1 [2019-12-07 17:48:32,891 INFO L796 eck$LassoCheckResult]: Loop: 334#L105-1 assume !false; 345#L695 assume test_~splverifierCounter~0 < 4; 346#L696 test_~tmp~5 := test_#t~nondet50;havoc test_#t~nondet50; 367#L704 assume !(0 != test_~tmp~5); 363#L704-1 test_~tmp___0~1 := test_#t~nondet51;havoc test_#t~nondet51; 372#L714 assume !(0 != test_~tmp___0~1); 354#L714-1 test_~tmp___2~0 := test_#t~nondet52;havoc test_#t~nondet52; 322#L724 assume 0 != test_~tmp___2~0; 323#L730-1 assume !(0 != ~pumpRunning~0); 308#L760 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret54, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 309#L792 assume !(0 != ~pumpRunning~0); 318#L767 havoc __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_#t~ret3, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 319#L637 __utac_acc__Specification3_spec__1_#t~ret1 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret1;havoc __utac_acc__Specification3_spec__1_#t~ret1; 356#L99 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 334#L105-1 [2019-12-07 17:48:32,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:48:32,891 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-12-07 17:48:32,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:48:32,892 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422556727] [2019-12-07 17:48:32,892 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:48:32,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:48:32,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:48:32,946 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:48:32,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:48:32,947 INFO L82 PathProgramCache]: Analyzing trace with hash -353331282, now seen corresponding path program 1 times [2019-12-07 17:48:32,947 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:48:32,947 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854320733] [2019-12-07 17:48:32,947 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:48:32,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:48:32,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:48:32,954 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:48:32,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:48:32,955 INFO L82 PathProgramCache]: Analyzing trace with hash 1249708244, now seen corresponding path program 1 times [2019-12-07 17:48:32,955 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:48:32,955 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433665203] [2019-12-07 17:48:32,955 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:48:32,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:48:32,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:48:32,991 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433665203] [2019-12-07 17:48:32,991 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:48:32,991 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 17:48:32,992 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213278430] [2019-12-07 17:48:33,039 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:48:33,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 17:48:33,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 17:48:33,039 INFO L87 Difference]: Start difference. First operand 120 states and 171 transitions. cyclomatic complexity: 54 Second operand 5 states. [2019-12-07 17:48:33,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:48:33,114 INFO L93 Difference]: Finished difference Result 397 states and 578 transitions. [2019-12-07 17:48:33,114 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 17:48:33,114 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 397 states and 578 transitions. [2019-12-07 17:48:33,119 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 294 [2019-12-07 17:48:33,122 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 397 states to 397 states and 578 transitions. [2019-12-07 17:48:33,123 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 397 [2019-12-07 17:48:33,124 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 397 [2019-12-07 17:48:33,124 INFO L73 IsDeterministic]: Start isDeterministic. Operand 397 states and 578 transitions. [2019-12-07 17:48:33,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 17:48:33,126 INFO L688 BuchiCegarLoop]: Abstraction has 397 states and 578 transitions. [2019-12-07 17:48:33,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states and 578 transitions. [2019-12-07 17:48:33,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 234. [2019-12-07 17:48:33,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2019-12-07 17:48:33,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 328 transitions. [2019-12-07 17:48:33,140 INFO L711 BuchiCegarLoop]: Abstraction has 234 states and 328 transitions. [2019-12-07 17:48:33,140 INFO L591 BuchiCegarLoop]: Abstraction has 234 states and 328 transitions. [2019-12-07 17:48:33,140 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 17:48:33,140 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 234 states and 328 transitions. [2019-12-07 17:48:33,142 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 168 [2019-12-07 17:48:33,142 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:48:33,142 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:48:33,142 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 17:48:33,142 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:48:33,143 INFO L794 eck$LassoCheckResult]: Stem: 893#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(13);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string43.base, #t~string43.offset, 1);call write~init~int(77, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(101, #t~string43.base, 2 + #t~string43.offset, 1);call write~init~int(116, #t~string43.base, 3 + #t~string43.offset, 1);call write~init~int(104, #t~string43.base, 4 + #t~string43.offset, 1);call write~init~int(58, #t~string43.base, 5 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 6 + #t~string43.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string45.base, #t~string45.offset, 1);call write~init~int(82, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(73, #t~string45.base, 2 + #t~string45.offset, 1);call write~init~int(84, #t~string45.base, 3 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 4 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(75, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 2 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string49.base, #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 1 + #t~string49.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(13);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);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(80, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(117, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(109, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(112, #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(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(32, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string71.base, #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 1 + #t~string71.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 855#L-1 havoc main_#res;havoc main_#t~ret39, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; 856#L74 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 916#L82 main_#t~ret39 := valid_product_#res;main_~tmp~4 := main_#t~ret39;havoc main_#t~ret39; 848#L577 assume 0 != main_~tmp~4; 849#L553 havoc test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_#t~nondet53, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 870#L105-1 [2019-12-07 17:48:33,143 INFO L796 eck$LassoCheckResult]: Loop: 870#L105-1 assume !false; 973#L695 assume test_~splverifierCounter~0 < 4; 911#L696 test_~tmp~5 := test_#t~nondet50;havoc test_#t~nondet50; 912#L704 assume !(0 != test_~tmp~5); 905#L704-1 test_~tmp___0~1 := test_#t~nondet51;havoc test_#t~nondet51; 918#L714 assume !(0 != test_~tmp___0~1); 892#L714-1 test_~tmp___2~0 := test_#t~nondet52;havoc test_#t~nondet52; 857#L724 assume 0 != test_~tmp___2~0; 858#L730-1 assume !(0 != ~pumpRunning~0); 843#L760 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret54, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 844#L792 assume !(0 != ~pumpRunning~0); 853#L767 havoc __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_#t~ret3, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 854#L637 __utac_acc__Specification3_spec__1_#t~ret1 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret1;havoc __utac_acc__Specification3_spec__1_#t~ret1; 902#L99 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~0);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 903#L669 __utac_acc__Specification3_spec__1_#t~ret2 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret2;havoc __utac_acc__Specification3_spec__1_#t~ret2; 939#L105 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0); 870#L105-1 [2019-12-07 17:48:33,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:48:33,143 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-12-07 17:48:33,143 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:48:33,144 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531732717] [2019-12-07 17:48:33,144 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:48:33,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:48:33,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:48:33,192 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:48:33,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:48:33,192 INFO L82 PathProgramCache]: Analyzing trace with hash -248939424, now seen corresponding path program 1 times [2019-12-07 17:48:33,193 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:48:33,193 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711401865] [2019-12-07 17:48:33,193 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:48:33,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:48:33,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:48:33,200 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:48:33,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:48:33,200 INFO L82 PathProgramCache]: Analyzing trace with hash -1621214202, now seen corresponding path program 1 times [2019-12-07 17:48:33,201 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:48:33,201 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810774099] [2019-12-07 17:48:33,201 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:48:33,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:48:33,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:48:33,248 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:48:55,614 WARN L192 SmtUtils]: Spent 22.30 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-12-07 17:49:07,012 WARN L192 SmtUtils]: Spent 11.40 s on a formula simplification that was a NOOP. DAG size: 400 [2019-12-07 17:49:07,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 05:49:07 BoogieIcfgContainer [2019-12-07 17:49:07,063 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 17:49:07,063 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 17:49:07,063 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 17:49:07,063 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 17:49:07,063 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:48:32" (3/4) ... [2019-12-07 17:49:07,066 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-12-07 17:49:07,110 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e3ad1984-a1ab-486a-a73c-9bcd73d2eccb/bin/uautomizer/witness.graphml [2019-12-07 17:49:07,111 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 17:49:07,112 INFO L168 Benchmark]: Toolchain (without parser) took 35624.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 944.8 MB in the beginning and 1.0 GB in the end (delta: -89.7 MB). Peak memory consumption was 64.0 MB. Max. memory is 11.5 GB. [2019-12-07 17:49:07,113 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:49:07,113 INFO L168 Benchmark]: CACSL2BoogieTranslator took 327.09 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.3 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -147.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-12-07 17:49:07,113 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.73 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 17:49:07,114 INFO L168 Benchmark]: Boogie Preprocessor took 25.10 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:49:07,114 INFO L168 Benchmark]: RCFGBuilder took 397.12 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 55.9 MB). Peak memory consumption was 55.9 MB. Max. memory is 11.5 GB. [2019-12-07 17:49:07,115 INFO L168 Benchmark]: BuchiAutomizer took 34784.33 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 50.3 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: -11.3 MB). Peak memory consumption was 244.9 MB. Max. memory is 11.5 GB. [2019-12-07 17:49:07,115 INFO L168 Benchmark]: Witness Printer took 47.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 11.5 GB. [2019-12-07 17:49:07,117 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 327.09 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.3 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -147.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 39.73 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.10 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 397.12 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 55.9 MB). Peak memory consumption was 55.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 34784.33 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 50.3 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: -11.3 MB). Peak memory consumption was 244.9 MB. Max. memory is 11.5 GB. * Witness Printer took 47.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 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 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 234 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 34.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 34.4s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 232 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 234 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 255 SDtfs, 799 SDslu, 1021 SDs, 0 SdLazy, 85 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 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: 694]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=780} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@733f6d7b=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6c614a79=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@384cf466=0, NULL=0, NULL=780, NULL=784, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=781, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@26bb9b6c=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4c8682ca=63, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6ecd055a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5d43ff90=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@62137e75=0, NULL=0, NULL=0, tmp=0, NULL=796, NULL=800, NULL=0, tmp___1=0, NULL=783, tmp___0=1, NULL=801, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57f763f0=0, tmp=0, cleanupTimeShifts=4, NULL=804, NULL=799, NULL=790, NULL=802, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=787, \result=1, NULL=0, retValue_acc=0, NULL=0, NULL=798, NULL=0, \result=1, head=0, pumpRunning=0, NULL=789, NULL=792, \result=0, tmp=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=788, NULL=791, NULL=797, NULL=803, NULL=0, retValue_acc=1, retValue_acc=1, tmp___2=63, tmp___0=0, NULL=805, splverifierCounter=0, NULL=0, \result=0, NULL=795, tmp___1=0, head=0, NULL=0, NULL=786, NULL=0, tmp=0, NULL=794, NULL=782, NULL=0, NULL=0, NULL=793, NULL=785} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L293] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L490] int cleanupTimeShifts = 4; [L594] int waterLevel = 1; [L595] int methaneLevelCritical = 0; [L753] int pumpRunning = 0; [L754] int systemActive = 1; [L568] int retValue_acc ; [L569] int tmp ; [L78] int retValue_acc ; [L81] retValue_acc = 1 [L82] return (retValue_acc); [L575] tmp = valid_product() [L577] COND TRUE \read(tmp) [L685] int splverifierCounter ; [L686] int tmp ; [L687] int tmp___0 ; [L688] int tmp___1 ; [L689] int tmp___2 ; [L692] splverifierCounter = 0 Loop: [L694] COND TRUE 1 [L696] COND TRUE splverifierCounter < 4 [L702] tmp = __VERIFIER_nondet_int() [L704] COND FALSE !(\read(tmp)) [L712] tmp___0 = __VERIFIER_nondet_int() [L714] COND FALSE !(\read(tmp___0)) [L722] tmp___2 = __VERIFIER_nondet_int() [L724] COND TRUE \read(tmp___2) [L760] COND FALSE !(\read(pumpRunning)) [L767] COND TRUE \read(systemActive) [L789] int tmp ; [L792] COND FALSE !(\read(pumpRunning)) [L91] int tmp ; [L92] int tmp___0 ; [L93] int tmp___1 ; [L633] int retValue_acc ; [L636] retValue_acc = methaneLevelCritical [L637] return (retValue_acc); [L97] tmp = isMethaneLevelCritical() [L99] COND FALSE !(\read(tmp)) [L665] int retValue_acc ; [L668] retValue_acc = waterLevel [L669] return (retValue_acc); [L103] tmp___0 = getWaterLevel() [L105] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...