./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ef644fdb-9b90-4953-8cdd-f348527c3c93/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_ef644fdb-9b90-4953-8cdd-f348527c3c93/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ef644fdb-9b90-4953-8cdd-f348527c3c93/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ef644fdb-9b90-4953-8cdd-f348527c3c93/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ef644fdb-9b90-4953-8cdd-f348527c3c93/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ef644fdb-9b90-4953-8cdd-f348527c3c93/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 c300c29b8d9fc061a97d8a30a731a0ec640f0644 .................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.24-6b5699a [2019-11-25 08:52:26,853 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:52:26,855 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:52:26,865 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:52:26,865 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:52:26,866 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:52:26,868 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:52:26,870 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:52:26,871 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:52:26,872 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:52:26,873 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:52:26,874 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:52:26,875 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:52:26,876 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:52:26,876 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:52:26,878 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:52:26,878 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:52:26,879 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:52:26,881 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:52:26,883 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:52:26,885 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:52:26,886 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:52:26,887 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:52:26,888 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:52:26,890 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:52:26,891 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:52:26,891 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:52:26,892 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:52:26,892 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:52:26,893 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:52:26,893 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:52:26,894 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:52:26,895 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:52:26,895 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:52:26,896 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:52:26,897 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:52:26,897 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:52:26,897 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:52:26,898 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:52:26,899 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:52:26,899 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:52:26,900 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ef644fdb-9b90-4953-8cdd-f348527c3c93/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-25 08:52:26,921 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:52:26,921 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:52:26,923 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:52:26,923 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:52:26,923 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:52:26,923 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-25 08:52:26,923 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-25 08:52:26,923 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-25 08:52:26,924 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-25 08:52:26,924 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-25 08:52:26,925 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-25 08:52:26,925 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:52:26,925 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:52:26,925 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:52:26,925 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:52:26,926 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:52:26,926 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:52:26,926 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-25 08:52:26,926 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-25 08:52:26,926 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-25 08:52:26,927 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:52:26,927 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:52:26,927 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-25 08:52:26,927 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:52:26,927 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-25 08:52:26,928 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:52:26,928 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:52:26,928 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-25 08:52:26,928 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:52:26,928 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:52:26,928 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-25 08:52:26,929 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-25 08:52:26,929 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_ef644fdb-9b90-4953-8cdd-f348527c3c93/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 -> c300c29b8d9fc061a97d8a30a731a0ec640f0644 [2019-11-25 08:52:27,070 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:52:27,079 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:52:27,081 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:52:27,083 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:52:27,083 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:52:27,084 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ef644fdb-9b90-4953-8cdd-f348527c3c93/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c [2019-11-25 08:52:27,135 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ef644fdb-9b90-4953-8cdd-f348527c3c93/bin/uautomizer/data/ccb53bc75/8a9ef25f41fc461b8f9cf1b93ffbc220/FLAGf65f843a1 [2019-11-25 08:52:27,579 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:52:27,580 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ef644fdb-9b90-4953-8cdd-f348527c3c93/sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c [2019-11-25 08:52:27,595 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ef644fdb-9b90-4953-8cdd-f348527c3c93/bin/uautomizer/data/ccb53bc75/8a9ef25f41fc461b8f9cf1b93ffbc220/FLAGf65f843a1 [2019-11-25 08:52:28,103 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ef644fdb-9b90-4953-8cdd-f348527c3c93/bin/uautomizer/data/ccb53bc75/8a9ef25f41fc461b8f9cf1b93ffbc220 [2019-11-25 08:52:28,106 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:52:28,107 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:52:28,108 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:52:28,108 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:52:28,111 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:52:28,112 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:52:28" (1/1) ... [2019-11-25 08:52:28,115 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b1f37b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:28, skipping insertion in model container [2019-11-25 08:52:28,115 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:52:28" (1/1) ... [2019-11-25 08:52:28,122 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:52:28,180 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:52:28,495 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:52:28,509 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:52:28,604 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:52:28,634 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:52:28,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:28 WrapperNode [2019-11-25 08:52:28,634 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:52:28,635 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:52:28,635 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:52:28,635 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:52:28,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:28" (1/1) ... [2019-11-25 08:52:28,665 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:28" (1/1) ... [2019-11-25 08:52:28,710 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:52:28,711 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:52:28,711 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:52:28,711 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:52:28,720 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:28" (1/1) ... [2019-11-25 08:52:28,721 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:28" (1/1) ... [2019-11-25 08:52:28,725 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:28" (1/1) ... [2019-11-25 08:52:28,725 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:28" (1/1) ... [2019-11-25 08:52:28,735 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:28" (1/1) ... [2019-11-25 08:52:28,754 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:28" (1/1) ... [2019-11-25 08:52:28,760 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:28" (1/1) ... [2019-11-25 08:52:28,764 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:52:28,764 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:52:28,764 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:52:28,765 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:52:28,765 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ef644fdb-9b90-4953-8cdd-f348527c3c93/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 [2019-11-25 08:52:28,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:52:28,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-25 08:52:28,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:52:28,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:52:29,593 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:52:29,594 INFO L284 CfgBuilder]: Removed 102 assume(true) statements. [2019-11-25 08:52:29,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:52:29 BoogieIcfgContainer [2019-11-25 08:52:29,595 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:52:29,595 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-25 08:52:29,596 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-25 08:52:29,599 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-25 08:52:29,599 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:52:29,600 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 08:52:28" (1/3) ... [2019-11-25 08:52:29,601 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2b3c0e30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:52:29, skipping insertion in model container [2019-11-25 08:52:29,601 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:52:29,601 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:28" (2/3) ... [2019-11-25 08:52:29,602 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2b3c0e30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:52:29, skipping insertion in model container [2019-11-25 08:52:29,602 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:52:29,602 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:52:29" (3/3) ... [2019-11-25 08:52:29,604 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product35.cil.c [2019-11-25 08:52:29,641 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-25 08:52:29,642 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-25 08:52:29,642 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-25 08:52:29,642 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:52:29,642 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:52:29,642 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-25 08:52:29,642 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:52:29,642 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-25 08:52:29,657 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 81 states. [2019-11-25 08:52:29,682 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2019-11-25 08:52:29,682 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:52:29,682 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:52:29,690 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:52:29,690 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:52:29,690 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-25 08:52:29,691 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 81 states. [2019-11-25 08:52:29,702 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2019-11-25 08:52:29,702 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:52:29,702 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:52:29,704 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:52:29,704 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:52:29,709 INFO L794 eck$LassoCheckResult]: Stem: 40#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(13);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string40.base, #t~string40.offset, 1);call write~init~int(110, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 2 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(102, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(102, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 3 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string44.base, #t~string44.offset, 1);call write~init~int(80, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(117, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(109, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(112, #t~string44.base, 4 + #t~string44.offset, 1);call write~init~int(58, #t~string44.base, 5 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 6 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string50.base, #t~string50.offset, 1);call write~init~int(32, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 2 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string52.base, #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 1 + #t~string52.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(77, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(101, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(116, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(104, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string67.base, #t~string67.offset, 1);call write~init~int(82, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(73, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(84, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 4 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(75, #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(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 1 + #t~string71.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 18#L-1true havoc main_#res;havoc main_#t~ret61, main_~retValue_acc~8, main_~tmp~7;havoc main_~retValue_acc~8;havoc main_~tmp~7; 83#L719true havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 7#L727true main_#t~ret61 := valid_product_#res;main_~tmp~7 := main_#t~ret61;havoc main_#t~ret61; 52#L824true assume 0 != main_~tmp~7; 12#L800true ~methAndRunningLastTime~0 := 0; 15#L661true havoc test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 17#L672-1true [2019-11-25 08:52:29,710 INFO L796 eck$LassoCheckResult]: Loop: 17#L672-1true assume !false; 68#L598true assume test_~splverifierCounter~0 < 4; 8#L599true test_~tmp~5 := test_#t~nondet54;havoc test_#t~nondet54; 37#L607true assume !(0 != test_~tmp~5); 19#L607-1true test_~tmp___0~1 := test_#t~nondet55;havoc test_#t~nondet55; 72#L617true assume !(0 != test_~tmp___0~1); 75#L617-1true test_~tmp___2~0 := test_#t~nondet56;havoc test_#t~nondet56; 58#L627true assume 0 != test_~tmp___2~0; 32#L633-1true assume !(0 != ~pumpRunning~0); 20#L424true assume !(0 != ~systemActive~0); 28#L431true havoc __utac_acc__Specification2_spec__2_#t~ret58, __utac_acc__Specification2_spec__2_#t~ret59, __utac_acc__Specification2_spec__2_~tmp~6, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~6;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 43#L882true __utac_acc__Specification2_spec__2_#t~ret58 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~6 := __utac_acc__Specification2_spec__2_#t~ret58;havoc __utac_acc__Specification2_spec__2_#t~ret58; 13#L672true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~6);~methAndRunningLastTime~0 := 0; 17#L672-1true [2019-11-25 08:52:29,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:29,716 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-11-25 08:52:29,727 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:29,727 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436745120] [2019-11-25 08:52:29,727 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:29,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:52:30,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:52:30,114 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:52:30,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:30,116 INFO L82 PathProgramCache]: Analyzing trace with hash 11341907, now seen corresponding path program 1 times [2019-11-25 08:52:30,116 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:30,116 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124331100] [2019-11-25 08:52:30,116 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:30,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:52:30,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:52:30,135 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:52:30,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:30,139 INFO L82 PathProgramCache]: Analyzing trace with hash 844638413, now seen corresponding path program 1 times [2019-11-25 08:52:30,139 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:30,139 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640693019] [2019-11-25 08:52:30,140 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:30,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:30,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:30,316 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640693019] [2019-11-25 08:52:30,317 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:52:30,317 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-25 08:52:30,318 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176313908] [2019-11-25 08:52:30,448 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2019-11-25 08:52:30,497 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:52:30,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-25 08:52:30,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-25 08:52:30,513 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 6 states. [2019-11-25 08:52:30,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:30,683 INFO L93 Difference]: Finished difference Result 208 states and 295 transitions. [2019-11-25 08:52:30,683 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-25 08:52:30,685 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 208 states and 295 transitions. [2019-11-25 08:52:30,692 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 131 [2019-11-25 08:52:30,698 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 208 states to 187 states and 274 transitions. [2019-11-25 08:52:30,699 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 187 [2019-11-25 08:52:30,700 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 187 [2019-11-25 08:52:30,701 INFO L73 IsDeterministic]: Start isDeterministic. Operand 187 states and 274 transitions. [2019-11-25 08:52:30,702 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:52:30,702 INFO L688 BuchiCegarLoop]: Abstraction has 187 states and 274 transitions. [2019-11-25 08:52:30,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states and 274 transitions. [2019-11-25 08:52:30,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 118. [2019-11-25 08:52:30,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2019-11-25 08:52:30,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 172 transitions. [2019-11-25 08:52:30,739 INFO L711 BuchiCegarLoop]: Abstraction has 118 states and 172 transitions. [2019-11-25 08:52:30,739 INFO L591 BuchiCegarLoop]: Abstraction has 118 states and 172 transitions. [2019-11-25 08:52:30,739 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-25 08:52:30,739 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 118 states and 172 transitions. [2019-11-25 08:52:30,742 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 82 [2019-11-25 08:52:30,742 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:52:30,742 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:52:30,743 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:52:30,743 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:52:30,743 INFO L794 eck$LassoCheckResult]: Stem: 359#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(13);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string40.base, #t~string40.offset, 1);call write~init~int(110, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 2 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(102, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(102, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 3 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string44.base, #t~string44.offset, 1);call write~init~int(80, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(117, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(109, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(112, #t~string44.base, 4 + #t~string44.offset, 1);call write~init~int(58, #t~string44.base, 5 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 6 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string50.base, #t~string50.offset, 1);call write~init~int(32, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 2 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string52.base, #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 1 + #t~string52.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(77, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(101, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(116, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(104, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string67.base, #t~string67.offset, 1);call write~init~int(82, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(73, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(84, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 4 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(75, #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(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 1 + #t~string71.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 333#L-1 havoc main_#res;havoc main_#t~ret61, main_~retValue_acc~8, main_~tmp~7;havoc main_~retValue_acc~8;havoc main_~tmp~7; 334#L719 havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 317#L727 main_#t~ret61 := valid_product_#res;main_~tmp~7 := main_#t~ret61;havoc main_#t~ret61; 318#L824 assume 0 != main_~tmp~7; 327#L800 ~methAndRunningLastTime~0 := 0; 328#L661 havoc test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 308#L672-1 [2019-11-25 08:52:30,744 INFO L796 eck$LassoCheckResult]: Loop: 308#L672-1 assume !false; 332#L598 assume test_~splverifierCounter~0 < 4; 319#L599 test_~tmp~5 := test_#t~nondet54;havoc test_#t~nondet54; 320#L607 assume !(0 != test_~tmp~5); 335#L607-1 test_~tmp___0~1 := test_#t~nondet55;havoc test_#t~nondet55; 336#L617 assume !(0 != test_~tmp___0~1); 381#L617-1 test_~tmp___2~0 := test_#t~nondet56;havoc test_#t~nondet56; 370#L627 assume 0 != test_~tmp___2~0; 353#L633-1 assume !(0 != ~pumpRunning~0); 337#L424 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret35, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 338#L456 assume !(0 == ~pumpRunning~0); 322#L431 havoc __utac_acc__Specification2_spec__2_#t~ret58, __utac_acc__Specification2_spec__2_#t~ret59, __utac_acc__Specification2_spec__2_~tmp~6, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~6;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 348#L882 __utac_acc__Specification2_spec__2_#t~ret58 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~6 := __utac_acc__Specification2_spec__2_#t~ret58;havoc __utac_acc__Specification2_spec__2_#t~ret58; 329#L672 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~6);~methAndRunningLastTime~0 := 0; 308#L672-1 [2019-11-25 08:52:30,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:30,744 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-11-25 08:52:30,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:30,745 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716367980] [2019-11-25 08:52:30,745 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:30,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:52:30,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:52:30,842 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:52:30,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:30,843 INFO L82 PathProgramCache]: Analyzing trace with hash 319988417, now seen corresponding path program 1 times [2019-11-25 08:52:30,843 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:30,843 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375931534] [2019-11-25 08:52:30,843 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:30,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:30,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:30,855 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375931534] [2019-11-25 08:52:30,855 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:52:30,855 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-25 08:52:30,855 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406588235] [2019-11-25 08:52:30,856 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-25 08:52:30,856 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:52:30,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:52:30,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:52:30,857 INFO L87 Difference]: Start difference. First operand 118 states and 172 transitions. cyclomatic complexity: 57 Second operand 3 states. [2019-11-25 08:52:30,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:30,925 INFO L93 Difference]: Finished difference Result 160 states and 221 transitions. [2019-11-25 08:52:30,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:52:30,927 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 160 states and 221 transitions. [2019-11-25 08:52:30,930 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 114 [2019-11-25 08:52:30,932 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 160 states to 160 states and 221 transitions. [2019-11-25 08:52:30,932 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 160 [2019-11-25 08:52:30,933 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 160 [2019-11-25 08:52:30,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 160 states and 221 transitions. [2019-11-25 08:52:30,934 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:52:30,934 INFO L688 BuchiCegarLoop]: Abstraction has 160 states and 221 transitions. [2019-11-25 08:52:30,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states and 221 transitions. [2019-11-25 08:52:30,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2019-11-25 08:52:30,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2019-11-25 08:52:30,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 221 transitions. [2019-11-25 08:52:30,947 INFO L711 BuchiCegarLoop]: Abstraction has 160 states and 221 transitions. [2019-11-25 08:52:30,947 INFO L591 BuchiCegarLoop]: Abstraction has 160 states and 221 transitions. [2019-11-25 08:52:30,948 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-25 08:52:30,948 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 160 states and 221 transitions. [2019-11-25 08:52:30,950 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 114 [2019-11-25 08:52:30,950 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:52:30,950 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:52:30,952 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:52:30,953 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] [2019-11-25 08:52:30,953 INFO L794 eck$LassoCheckResult]: Stem: 652#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(13);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string40.base, #t~string40.offset, 1);call write~init~int(110, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 2 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(102, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(102, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 3 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string44.base, #t~string44.offset, 1);call write~init~int(80, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(117, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(109, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(112, #t~string44.base, 4 + #t~string44.offset, 1);call write~init~int(58, #t~string44.base, 5 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 6 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string50.base, #t~string50.offset, 1);call write~init~int(32, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 2 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string52.base, #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 1 + #t~string52.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(77, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(101, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(116, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(104, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string67.base, #t~string67.offset, 1);call write~init~int(82, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(73, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(84, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 4 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(75, #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(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 1 + #t~string71.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 622#L-1 havoc main_#res;havoc main_#t~ret61, main_~retValue_acc~8, main_~tmp~7;havoc main_~retValue_acc~8;havoc main_~tmp~7; 623#L719 havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 603#L727 main_#t~ret61 := valid_product_#res;main_~tmp~7 := main_#t~ret61;havoc main_#t~ret61; 604#L824 assume 0 != main_~tmp~7; 614#L800 ~methAndRunningLastTime~0 := 0; 615#L661 havoc test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 592#L672-1 [2019-11-25 08:52:30,954 INFO L796 eck$LassoCheckResult]: Loop: 592#L672-1 assume !false; 621#L598 assume test_~splverifierCounter~0 < 4; 601#L599 test_~tmp~5 := test_#t~nondet54;havoc test_#t~nondet54; 602#L607 assume !(0 != test_~tmp~5); 624#L607-1 test_~tmp___0~1 := test_#t~nondet55;havoc test_#t~nondet55; 625#L617 assume !(0 != test_~tmp___0~1); 676#L617-1 test_~tmp___2~0 := test_#t~nondet56;havoc test_#t~nondet56; 664#L627 assume 0 != test_~tmp___2~0; 641#L633-1 assume !(0 != ~pumpRunning~0); 646#L424 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret35, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 679#L456 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret53, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 660#L922 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 661#L927 isHighWaterLevel_#t~ret53 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret53;havoc isHighWaterLevel_#t~ret53; 671#L558 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~0 := 0; 672#L558-2 isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; 651#L564 processEnvironment_#t~ret35 := isHighWaterLevel_#res;processEnvironment_~tmp~3 := processEnvironment_#t~ret35;havoc processEnvironment_#t~ret35; 605#L460 assume !(0 != processEnvironment_~tmp~3); 607#L431 havoc __utac_acc__Specification2_spec__2_#t~ret58, __utac_acc__Specification2_spec__2_#t~ret59, __utac_acc__Specification2_spec__2_~tmp~6, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~6;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 638#L882 __utac_acc__Specification2_spec__2_#t~ret58 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~6 := __utac_acc__Specification2_spec__2_#t~ret58;havoc __utac_acc__Specification2_spec__2_#t~ret58; 616#L672 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~6);~methAndRunningLastTime~0 := 0; 592#L672-1 [2019-11-25 08:52:30,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:30,954 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-11-25 08:52:30,955 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:30,955 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146916241] [2019-11-25 08:52:30,955 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:31,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:52:31,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:52:31,088 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:52:31,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:31,089 INFO L82 PathProgramCache]: Analyzing trace with hash 333532013, now seen corresponding path program 1 times [2019-11-25 08:52:31,089 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:31,089 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863005543] [2019-11-25 08:52:31,089 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:31,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:52:31,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:52:31,118 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:52:31,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:31,119 INFO L82 PathProgramCache]: Analyzing trace with hash 1499108787, now seen corresponding path program 1 times [2019-11-25 08:52:31,120 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:31,120 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279804272] [2019-11-25 08:52:31,120 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:31,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:52:31,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:52:31,240 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:52:31,405 WARN L192 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 51 [2019-11-25 08:53:00,052 WARN L192 SmtUtils]: Spent 28.57 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-11-25 08:53:13,621 WARN L192 SmtUtils]: Spent 13.56 s on a formula simplification that was a NOOP. DAG size: 402 [2019-11-25 08:53:13,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 08:53:13 BoogieIcfgContainer [2019-11-25 08:53:13,701 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-25 08:53:13,702 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:53:13,702 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:53:13,702 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:53:13,702 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:52:29" (3/4) ... [2019-11-25 08:53:13,704 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-25 08:53:13,773 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ef644fdb-9b90-4953-8cdd-f348527c3c93/bin/uautomizer/witness.graphml [2019-11-25 08:53:13,780 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:53:13,782 INFO L168 Benchmark]: Toolchain (without parser) took 45674.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 184.0 MB). Free memory was 946.0 MB in the beginning and 1.0 GB in the end (delta: -93.5 MB). Peak memory consumption was 90.5 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:13,782 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:53:13,783 INFO L168 Benchmark]: CACSL2BoogieTranslator took 526.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -179.9 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:13,785 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.20 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. [2019-11-25 08:53:13,785 INFO L168 Benchmark]: Boogie Preprocessor took 53.46 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:53:13,786 INFO L168 Benchmark]: RCFGBuilder took 830.76 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: 60.0 MB). Peak memory consumption was 60.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:13,786 INFO L168 Benchmark]: BuchiAutomizer took 44106.07 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 46.1 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 5.8 MB). Peak memory consumption was 235.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:13,786 INFO L168 Benchmark]: Witness Printer took 78.53 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: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:13,788 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 526.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -179.9 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 75.20 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 53.46 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 830.76 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: 60.0 MB). Peak memory consumption was 60.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 44106.07 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 46.1 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 5.8 MB). Peak memory consumption was 235.0 MB. Max. memory is 11.5 GB. * Witness Printer took 78.53 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: 9.9 MB). Peak memory consumption was 9.9 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 160 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 44.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 43.6s. 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, 69 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 160 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 232 SDtfs, 510 SDslu, 638 SDs, 0 SdLazy, 64 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 597]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=9273} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=9273, NULL=29878, NULL=0, NULL=29876, NULL=0, NULL=17892, NULL=23178, retValue_acc=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5ce82b44=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7bf3ed79=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1fe58fb=0, tmp___0=0, retValue_acc=0, NULL=0, NULL=0, tmp=0, NULL=0, tmp___1=0, NULL=29874, NULL=23175, NULL=10159, NULL=17891, cleanupTimeShifts=4, NULL=10158, NULL=29873, NULL=23176, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=23171, NULL=0, NULL=0, NULL=0, retValue_acc=0, \result=0, NULL=29875, NULL=0, NULL=0, \result=1, NULL=17893, head=0, pumpRunning=0, \result=0, NULL=23169, NULL=29877, NULL=0, tmp=1, NULL=0, \result=1, NULL=23179, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7fe6c95f=0, NULL=17894, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2b7d460d=0, retValue_acc=1, NULL=17890, NULL=0, tmp=1, tmp___2=53, retValue_acc=1, NULL=23170, tmp___0=0, tmp___0=0, splverifierCounter=0, methAndRunningLastTime=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7ef4b6b5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@11e9f361=53, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@42642e1a=0, tmp=0, head=0, NULL=0, NULL=17889, NULL=23172, NULL=0, NULL=23173, NULL=0, NULL=0, NULL=23174, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@65478d71=0, NULL=0, NULL=23177, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L416] int pumpRunning = 0; [L417] int systemActive = 1; [L655] int methAndRunningLastTime ; [L741] int cleanupTimeShifts = 4; [L839] int waterLevel = 1; [L840] int methaneLevelCritical = 0; [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L815] int retValue_acc ; [L816] int tmp ; [L723] int retValue_acc ; [L726] retValue_acc = 1 [L727] return (retValue_acc); [L822] tmp = valid_product() [L824] COND TRUE \read(tmp) [L660] methAndRunningLastTime = 0 [L588] int splverifierCounter ; [L589] int tmp ; [L590] int tmp___0 ; [L591] int tmp___1 ; [L592] int tmp___2 ; [L595] splverifierCounter = 0 Loop: [L597] COND TRUE 1 [L599] COND TRUE splverifierCounter < 4 [L605] tmp = __VERIFIER_nondet_int() [L607] COND FALSE !(\read(tmp)) [L615] tmp___0 = __VERIFIER_nondet_int() [L617] COND FALSE !(\read(tmp___0)) [L625] tmp___2 = __VERIFIER_nondet_int() [L627] COND TRUE \read(tmp___2) [L424] COND FALSE !(\read(pumpRunning)) [L431] COND TRUE \read(systemActive) [L453] int tmp ; [L456] COND TRUE ! pumpRunning [L550] int retValue_acc ; [L551] int tmp ; [L552] int tmp___0 ; [L919] int retValue_acc ; [L922] COND TRUE waterLevel < 2 [L923] retValue_acc = 1 [L924] return (retValue_acc); [L556] tmp = isHighWaterSensorDry() [L558] COND TRUE \read(tmp) [L559] tmp___0 = 0 [L563] retValue_acc = tmp___0 [L564] return (retValue_acc); [L458] tmp = isHighWaterLevel() [L460] COND FALSE !(\read(tmp)) [L665] int tmp ; [L666] int tmp___0 ; [L878] int retValue_acc ; [L881] retValue_acc = methaneLevelCritical [L882] return (retValue_acc); [L670] tmp = isMethaneLevelCritical() [L672] COND FALSE !(\read(tmp)) [L688] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...