./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product63.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_26716e04-1a0e-45d3-af16-6c316c6c8c66/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_26716e04-1a0e-45d3-af16-6c316c6c8c66/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_26716e04-1a0e-45d3-af16-6c316c6c8c66/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_26716e04-1a0e-45d3-af16-6c316c6c8c66/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product63.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_26716e04-1a0e-45d3-af16-6c316c6c8c66/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_26716e04-1a0e-45d3-af16-6c316c6c8c66/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 06aae21f289bee6dc7cb083e66e9be5f9a234275 .................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 08:56:10,795 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:56:10,797 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:56:10,807 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:56:10,807 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:56:10,808 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:56:10,809 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:56:10,811 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:56:10,813 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:56:10,814 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:56:10,815 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:56:10,816 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:56:10,816 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:56:10,817 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:56:10,818 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:56:10,819 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:56:10,820 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:56:10,820 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:56:10,822 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:56:10,824 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:56:10,825 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:56:10,826 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:56:10,827 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:56:10,828 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:56:10,831 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:56:10,831 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:56:10,831 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:56:10,832 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:56:10,832 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:56:10,833 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:56:10,834 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:56:10,834 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:56:10,835 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:56:10,835 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:56:10,836 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:56:10,837 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:56:10,837 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:56:10,837 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:56:10,838 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:56:10,838 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:56:10,839 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:56:10,840 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_26716e04-1a0e-45d3-af16-6c316c6c8c66/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-25 08:56:10,854 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:56:10,854 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:56:10,855 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:56:10,855 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:56:10,855 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:56:10,856 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-25 08:56:10,856 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-25 08:56:10,856 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-25 08:56:10,856 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-25 08:56:10,857 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-25 08:56:10,857 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-25 08:56:10,857 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:56:10,857 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:56:10,857 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:56:10,858 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:56:10,858 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:56:10,858 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:56:10,858 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-25 08:56:10,858 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-25 08:56:10,859 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-25 08:56:10,859 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:56:10,859 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:56:10,859 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-25 08:56:10,859 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:56:10,860 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-25 08:56:10,860 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:56:10,860 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:56:10,860 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-25 08:56:10,861 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:56:10,861 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:56:10,861 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-25 08:56:10,862 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-25 08:56:10,862 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_26716e04-1a0e-45d3-af16-6c316c6c8c66/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 -> 06aae21f289bee6dc7cb083e66e9be5f9a234275 [2019-11-25 08:56:10,988 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:56:10,997 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:56:11,000 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:56:11,002 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:56:11,003 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:56:11,003 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_26716e04-1a0e-45d3-af16-6c316c6c8c66/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product63.cil.c [2019-11-25 08:56:11,062 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_26716e04-1a0e-45d3-af16-6c316c6c8c66/bin/uautomizer/data/8a95eca28/5503aa15152648c39270a41d3695e69d/FLAG8e102a13c [2019-11-25 08:56:11,456 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:56:11,456 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_26716e04-1a0e-45d3-af16-6c316c6c8c66/sv-benchmarks/c/product-lines/minepump_spec1_product63.cil.c [2019-11-25 08:56:11,469 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_26716e04-1a0e-45d3-af16-6c316c6c8c66/bin/uautomizer/data/8a95eca28/5503aa15152648c39270a41d3695e69d/FLAG8e102a13c [2019-11-25 08:56:11,864 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_26716e04-1a0e-45d3-af16-6c316c6c8c66/bin/uautomizer/data/8a95eca28/5503aa15152648c39270a41d3695e69d [2019-11-25 08:56:11,866 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:56:11,867 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:56:11,868 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:56:11,869 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:56:11,872 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:56:11,872 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:56:11" (1/1) ... [2019-11-25 08:56:11,875 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d0d6d50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:11, skipping insertion in model container [2019-11-25 08:56:11,875 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:56:11" (1/1) ... [2019-11-25 08:56:11,882 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:56:11,931 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:56:12,264 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:56:12,275 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:56:12,392 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:56:12,433 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:56:12,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:12 WrapperNode [2019-11-25 08:56:12,434 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:56:12,437 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:56:12,437 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:56:12,437 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:56:12,444 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:12" (1/1) ... [2019-11-25 08:56:12,465 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:12" (1/1) ... [2019-11-25 08:56:12,544 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:56:12,545 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:56:12,545 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:56:12,545 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:56:12,553 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:12" (1/1) ... [2019-11-25 08:56:12,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:12" (1/1) ... [2019-11-25 08:56:12,560 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:12" (1/1) ... [2019-11-25 08:56:12,561 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:12" (1/1) ... [2019-11-25 08:56:12,600 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:12" (1/1) ... [2019-11-25 08:56:12,624 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:12" (1/1) ... [2019-11-25 08:56:12,633 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:12" (1/1) ... [2019-11-25 08:56:12,654 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:56:12,657 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:56:12,658 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:56:12,660 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:56:12,661 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_26716e04-1a0e-45d3-af16-6c316c6c8c66/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 08:56:12,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:56:12,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-25 08:56:12,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:56:12,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:56:13,712 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:56:13,712 INFO L284 CfgBuilder]: Removed 352 assume(true) statements. [2019-11-25 08:56:13,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:56:13 BoogieIcfgContainer [2019-11-25 08:56:13,713 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:56:13,714 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-25 08:56:13,714 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-25 08:56:13,717 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-25 08:56:13,718 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:56:13,718 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 08:56:11" (1/3) ... [2019-11-25 08:56:13,719 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2dc07c24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:56:13, skipping insertion in model container [2019-11-25 08:56:13,719 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:56:13,719 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:12" (2/3) ... [2019-11-25 08:56:13,720 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2dc07c24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:56:13, skipping insertion in model container [2019-11-25 08:56:13,720 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:56:13,720 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:56:13" (3/3) ... [2019-11-25 08:56:13,721 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product63.cil.c [2019-11-25 08:56:13,771 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-25 08:56:13,771 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-25 08:56:13,772 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-25 08:56:13,772 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:56:13,772 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:56:13,773 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-25 08:56:13,773 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:56:13,773 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-25 08:56:13,801 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 224 states. [2019-11-25 08:56:13,837 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 147 [2019-11-25 08:56:13,838 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:56:13,838 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:56:13,844 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-25 08:56:13,844 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:56:13,844 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-25 08:56:13,844 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 224 states. [2019-11-25 08:56:13,853 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 147 [2019-11-25 08:56:13,854 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:56:13,854 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:56:13,855 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-25 08:56:13,855 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:56:13,859 INFO L794 eck$LassoCheckResult]: Stem: 107#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(13);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(110, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(102, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(102, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 3 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string12.base, #t~string12.offset, 1);call write~init~int(80, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(117, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(109, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(112, #t~string12.base, 4 + #t~string12.offset, 1);call write~init~int(58, #t~string12.base, 5 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 6 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(110, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string18.base, #t~string18.offset, 1);call write~init~int(32, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string20.base, #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 1 + #t~string20.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(30);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(9);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(21);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(21);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(25);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(77, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(101, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(116, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(104, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string70.base, #t~string70.offset, 1);call write~init~int(82, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(73, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(84, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 4 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(75, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 7#L-1true havoc main_#res;havoc main_#t~ret62, main_~retValue_acc~7, main_~tmp~10;havoc main_~retValue_acc~7;havoc main_~tmp~10; 158#L1003true havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 50#L1011true main_#t~ret62 := valid_product_#res;main_~tmp~10 := main_#t~ret62;havoc main_#t~ret62; 101#L837true assume 0 != main_~tmp~10; 135#L811true havoc test_#t~nondet23, test_#t~nondet24, test_#t~nondet25, test_#t~nondet26, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 102#L859-1true [2019-11-25 08:56:13,860 INFO L796 eck$LassoCheckResult]: Loop: 102#L859-1true assume !false; 131#L321true assume test_~splverifierCounter~0 < 4; 205#L322true test_~tmp~6 := test_#t~nondet23;havoc test_#t~nondet23; 118#L330true assume !(0 != test_~tmp~6); 105#L330-1true test_~tmp___0~2 := test_#t~nondet24;havoc test_#t~nondet24; 8#L340true assume !(0 != test_~tmp___0~2); 9#L340-1true test_~tmp___2~0 := test_#t~nondet25;havoc test_#t~nondet25; 76#L350true assume 0 != test_~tmp___2~0; 44#L356-1true assume !(0 != ~pumpRunning~0); 17#L59true assume !(0 != ~systemActive~0); 112#L66true havoc __utac_acc__Specification1_spec__1_#t~ret63, __utac_acc__Specification1_spec__1_#t~ret64, __utac_acc__Specification1_spec__1_~tmp~11, __utac_acc__Specification1_spec__1_~tmp___0~3;havoc __utac_acc__Specification1_spec__1_~tmp~11;havoc __utac_acc__Specification1_spec__1_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 220#L921-5true __utac_acc__Specification1_spec__1_#t~ret63 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~11 := __utac_acc__Specification1_spec__1_#t~ret63;havoc __utac_acc__Specification1_spec__1_#t~ret63; 100#L859true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~11); 102#L859-1true [2019-11-25 08:56:13,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:13,870 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-11-25 08:56:13,877 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:56:13,878 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137552080] [2019-11-25 08:56:13,878 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:56:14,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:56:14,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:56:14,199 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:56:14,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:14,201 INFO L82 PathProgramCache]: Analyzing trace with hash -1666538037, now seen corresponding path program 1 times [2019-11-25 08:56:14,201 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:56:14,201 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280070767] [2019-11-25 08:56:14,201 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:56:14,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:56:14,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:56:14,215 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:56:14,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:14,217 INFO L82 PathProgramCache]: Analyzing trace with hash 47740901, now seen corresponding path program 1 times [2019-11-25 08:56:14,217 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:56:14,218 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957719916] [2019-11-25 08:56:14,218 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:56:14,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:56:14,399 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 08:56:14,399 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957719916] [2019-11-25 08:56:14,400 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:56:14,400 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-25 08:56:14,401 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561026493] [2019-11-25 08:56:14,486 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:56:14,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-25 08:56:14,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-25 08:56:14,502 INFO L87 Difference]: Start difference. First operand 224 states. Second operand 6 states. [2019-11-25 08:56:14,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:56:14,752 INFO L93 Difference]: Finished difference Result 492 states and 714 transitions. [2019-11-25 08:56:14,755 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-25 08:56:14,757 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 492 states and 714 transitions. [2019-11-25 08:56:14,773 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 321 [2019-11-25 08:56:14,791 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 492 states to 471 states and 693 transitions. [2019-11-25 08:56:14,793 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 471 [2019-11-25 08:56:14,794 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 471 [2019-11-25 08:56:14,795 INFO L73 IsDeterministic]: Start isDeterministic. Operand 471 states and 693 transitions. [2019-11-25 08:56:14,798 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:56:14,798 INFO L688 BuchiCegarLoop]: Abstraction has 471 states and 693 transitions. [2019-11-25 08:56:14,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states and 693 transitions. [2019-11-25 08:56:14,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 258. [2019-11-25 08:56:14,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2019-11-25 08:56:14,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 378 transitions. [2019-11-25 08:56:14,867 INFO L711 BuchiCegarLoop]: Abstraction has 258 states and 378 transitions. [2019-11-25 08:56:14,867 INFO L591 BuchiCegarLoop]: Abstraction has 258 states and 378 transitions. [2019-11-25 08:56:14,868 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-25 08:56:14,868 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 258 states and 378 transitions. [2019-11-25 08:56:14,871 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 176 [2019-11-25 08:56:14,871 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:56:14,871 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:56:14,873 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-25 08:56:14,873 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:56:14,873 INFO L794 eck$LassoCheckResult]: Stem: 877#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(13);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(110, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(102, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(102, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 3 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string12.base, #t~string12.offset, 1);call write~init~int(80, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(117, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(109, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(112, #t~string12.base, 4 + #t~string12.offset, 1);call write~init~int(58, #t~string12.base, 5 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 6 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(110, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string18.base, #t~string18.offset, 1);call write~init~int(32, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string20.base, #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 1 + #t~string20.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(30);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(9);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(21);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(21);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(25);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(77, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(101, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(116, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(104, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string70.base, #t~string70.offset, 1);call write~init~int(82, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(73, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(84, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 4 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(75, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 741#L-1 havoc main_#res;havoc main_#t~ret62, main_~retValue_acc~7, main_~tmp~10;havoc main_~retValue_acc~7;havoc main_~tmp~10; 742#L1003 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 811#L1011 main_#t~ret62 := valid_product_#res;main_~tmp~10 := main_#t~ret62;havoc main_#t~ret62; 812#L837 assume 0 != main_~tmp~10; 871#L811 havoc test_#t~nondet23, test_#t~nondet24, test_#t~nondet25, test_#t~nondet26, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 787#L859-1 [2019-11-25 08:56:14,874 INFO L796 eck$LassoCheckResult]: Loop: 787#L859-1 assume !false; 872#L321 assume test_~splverifierCounter~0 < 4; 907#L322 test_~tmp~6 := test_#t~nondet23;havoc test_#t~nondet23; 893#L330 assume !(0 != test_~tmp~6); 777#L330-1 test_~tmp___0~2 := test_#t~nondet24;havoc test_#t~nondet24; 743#L340 assume !(0 != test_~tmp___0~2); 744#L340-1 test_~tmp___2~0 := test_#t~nondet25;havoc test_#t~nondet25; 746#L350 assume 0 != test_~tmp___2~0; 801#L356-1 assume !(0 != ~pumpRunning~0); 760#L59 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret2, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 761#L143 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret1, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 875#L117-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret0, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 913#L91-3 assume !(0 == ~pumpRunning~0); 779#L66 havoc __utac_acc__Specification1_spec__1_#t~ret63, __utac_acc__Specification1_spec__1_#t~ret64, __utac_acc__Specification1_spec__1_~tmp~11, __utac_acc__Specification1_spec__1_~tmp___0~3;havoc __utac_acc__Specification1_spec__1_~tmp~11;havoc __utac_acc__Specification1_spec__1_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 884#L921-5 __utac_acc__Specification1_spec__1_#t~ret63 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~11 := __utac_acc__Specification1_spec__1_#t~ret63;havoc __utac_acc__Specification1_spec__1_#t~ret63; 870#L859 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~11); 787#L859-1 [2019-11-25 08:56:14,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:14,874 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-11-25 08:56:14,875 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:56:14,875 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492988371] [2019-11-25 08:56:14,875 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:56:14,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:56:14,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:56:14,987 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:56:14,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:14,993 INFO L82 PathProgramCache]: Analyzing trace with hash -1439331007, now seen corresponding path program 1 times [2019-11-25 08:56:14,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:56:14,994 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195947544] [2019-11-25 08:56:14,995 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:56:15,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:56:15,013 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 08:56:15,013 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195947544] [2019-11-25 08:56:15,014 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:56:15,014 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-25 08:56:15,014 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448694598] [2019-11-25 08:56:15,014 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-25 08:56:15,015 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:56:15,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:56:15,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:56:15,015 INFO L87 Difference]: Start difference. First operand 258 states and 378 transitions. cyclomatic complexity: 123 Second operand 3 states. [2019-11-25 08:56:15,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:56:15,159 INFO L93 Difference]: Finished difference Result 252 states and 346 transitions. [2019-11-25 08:56:15,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:56:15,160 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 252 states and 346 transitions. [2019-11-25 08:56:15,162 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 176 [2019-11-25 08:56:15,164 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 252 states to 252 states and 346 transitions. [2019-11-25 08:56:15,164 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 252 [2019-11-25 08:56:15,165 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 252 [2019-11-25 08:56:15,165 INFO L73 IsDeterministic]: Start isDeterministic. Operand 252 states and 346 transitions. [2019-11-25 08:56:15,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:56:15,167 INFO L688 BuchiCegarLoop]: Abstraction has 252 states and 346 transitions. [2019-11-25 08:56:15,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states and 346 transitions. [2019-11-25 08:56:15,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2019-11-25 08:56:15,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2019-11-25 08:56:15,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 346 transitions. [2019-11-25 08:56:15,183 INFO L711 BuchiCegarLoop]: Abstraction has 252 states and 346 transitions. [2019-11-25 08:56:15,184 INFO L591 BuchiCegarLoop]: Abstraction has 252 states and 346 transitions. [2019-11-25 08:56:15,184 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-25 08:56:15,184 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 252 states and 346 transitions. [2019-11-25 08:56:15,187 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 176 [2019-11-25 08:56:15,187 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:56:15,187 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:56:15,188 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-25 08:56:15,188 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:56:15,188 INFO L794 eck$LassoCheckResult]: Stem: 1427#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(13);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(110, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(102, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(102, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 3 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string12.base, #t~string12.offset, 1);call write~init~int(80, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(117, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(109, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(112, #t~string12.base, 4 + #t~string12.offset, 1);call write~init~int(58, #t~string12.base, 5 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 6 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(110, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string18.base, #t~string18.offset, 1);call write~init~int(32, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string20.base, #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 1 + #t~string20.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(30);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(9);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(21);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(21);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(25);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(77, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(101, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(116, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(104, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string70.base, #t~string70.offset, 1);call write~init~int(82, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(73, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(84, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 4 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(75, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 1294#L-1 havoc main_#res;havoc main_#t~ret62, main_~retValue_acc~7, main_~tmp~10;havoc main_~retValue_acc~7;havoc main_~tmp~10; 1295#L1003 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 1357#L1011 main_#t~ret62 := valid_product_#res;main_~tmp~10 := main_#t~ret62;havoc main_#t~ret62; 1361#L837 assume 0 != main_~tmp~10; 1279#L811 havoc test_#t~nondet23, test_#t~nondet24, test_#t~nondet25, test_#t~nondet26, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1280#L859-1 [2019-11-25 08:56:15,189 INFO L796 eck$LassoCheckResult]: Loop: 1280#L859-1 assume !false; 1274#L321 assume test_~splverifierCounter~0 < 4; 1275#L322 test_~tmp~6 := test_#t~nondet23;havoc test_#t~nondet23; 1425#L330 assume !(0 != test_~tmp~6); 1325#L330-1 test_~tmp___0~2 := test_#t~nondet24;havoc test_#t~nondet24; 1291#L340 assume !(0 != test_~tmp___0~2); 1292#L340-1 test_~tmp___2~0 := test_#t~nondet25;havoc test_#t~nondet25; 1296#L350 assume 0 != test_~tmp___2~0; 1346#L356-1 assume !(0 != ~pumpRunning~0); 1317#L59 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret2, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 1318#L143 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret1, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 1287#L117-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret0, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 1288#L91-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret21, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~10;havoc isHighWaterSensorDry_~retValue_acc~10; 1392#L961-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~10 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~10; 1393#L966-3 isHighWaterLevel_#t~ret21 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret21;havoc isHighWaterLevel_#t~ret21; 1352#L262-9 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~0 := 0; 1349#L262-11 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 1330#L268-3 processEnvironment__wrappee__highWaterSensor_#t~ret0 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret0;havoc processEnvironment__wrappee__highWaterSensor_#t~ret0; 1268#L95-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 1269#L66 havoc __utac_acc__Specification1_spec__1_#t~ret63, __utac_acc__Specification1_spec__1_#t~ret64, __utac_acc__Specification1_spec__1_~tmp~11, __utac_acc__Specification1_spec__1_~tmp___0~3;havoc __utac_acc__Specification1_spec__1_~tmp~11;havoc __utac_acc__Specification1_spec__1_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 1429#L921-5 __utac_acc__Specification1_spec__1_#t~ret63 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~11 := __utac_acc__Specification1_spec__1_#t~ret63;havoc __utac_acc__Specification1_spec__1_#t~ret63; 1424#L859 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~11); 1280#L859-1 [2019-11-25 08:56:15,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:15,189 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-11-25 08:56:15,189 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:56:15,189 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130471724] [2019-11-25 08:56:15,189 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:56:15,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:56:15,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:56:15,303 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:56:15,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:15,305 INFO L82 PathProgramCache]: Analyzing trace with hash 1579572237, now seen corresponding path program 1 times [2019-11-25 08:56:15,305 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:56:15,305 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007412784] [2019-11-25 08:56:15,306 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:56:15,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:56:15,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:56:15,323 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:56:15,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:15,324 INFO L82 PathProgramCache]: Analyzing trace with hash -1462089933, now seen corresponding path program 1 times [2019-11-25 08:56:15,324 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:56:15,325 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723570784] [2019-11-25 08:56:15,325 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:56:15,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:56:15,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:56:15,440 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:56:15,590 WARN L192 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2019-11-25 08:56:36,670 WARN L192 SmtUtils]: Spent 21.00 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-11-25 08:56:50,375 WARN L192 SmtUtils]: Spent 13.70 s on a formula simplification that was a NOOP. DAG size: 400 [2019-11-25 08:56:50,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 08:56:50 BoogieIcfgContainer [2019-11-25 08:56:50,444 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-25 08:56:50,445 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:56:50,445 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:56:50,445 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:56:50,448 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:56:13" (3/4) ... [2019-11-25 08:56:50,450 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-25 08:56:50,504 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_26716e04-1a0e-45d3-af16-6c316c6c8c66/bin/uautomizer/witness.graphml [2019-11-25 08:56:50,504 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:56:50,506 INFO L168 Benchmark]: Toolchain (without parser) took 38638.50 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 328.2 MB). Free memory was 938.0 MB in the beginning and 1.2 GB in the end (delta: -281.0 MB). Peak memory consumption was 47.2 MB. Max. memory is 11.5 GB. [2019-11-25 08:56:50,506 INFO L168 Benchmark]: CDTParser took 0.22 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 08:56:50,507 INFO L168 Benchmark]: CACSL2BoogieTranslator took 568.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -198.2 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-11-25 08:56:50,507 INFO L168 Benchmark]: Boogie Procedure Inliner took 107.46 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: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:56:50,508 INFO L168 Benchmark]: Boogie Preprocessor took 111.92 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 08:56:50,508 INFO L168 Benchmark]: RCFGBuilder took 1056.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 88.7 MB). Peak memory consumption was 88.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:56:50,509 INFO L168 Benchmark]: BuchiAutomizer took 36730.41 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 169.9 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -184.2 MB). Peak memory consumption was 364.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:56:50,510 INFO L168 Benchmark]: Witness Printer took 59.97 ms. Allocated memory is still 1.4 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:56:50,512 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 568.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -198.2 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 107.46 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: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 111.92 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 1056.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 88.7 MB). Peak memory consumption was 88.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 36730.41 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 169.9 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -184.2 MB). Peak memory consumption was 364.9 MB. Max. memory is 11.5 GB. * Witness Printer took 59.97 ms. Allocated memory is still 1.4 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 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 252 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 36.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 35.9s. Construction of modules took 0.2s. 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, 213 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 258 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 550 SDtfs, 1444 SDslu, 1274 SDs, 0 SdLazy, 85 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s 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: 320]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=2075} State at position 1 is {NULL=0, NULL=0, NULL=2083, NULL=2079, NULL=0, NULL=2075, NULL=2100, NULL=0, retValue_acc=0, NULL=2082, retValue_acc=1, NULL=2090, methaneLevelCritical=0, NULL=2086, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@734817d7=0, NULL=0, retValue_acc=0, tmp=0, NULL=0, NULL=2097, tmp___1=0, NULL=0, NULL=0, tmp=0, NULL=2099, cleanupTimeShifts=4, tmp=0, tmp___0=0, NULL=2080, NULL=2087, NULL=2096, tmp=1, NULL=0, systemActive=1, waterLevel=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2c2d5650=0, NULL=0, NULL=2088, NULL=0, retValue_acc=0, NULL=0, NULL=2098, \result=0, NULL=0, NULL=2093, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, \result=1, NULL=2095, head=0, pumpRunning=0, NULL=2081, NULL=2091, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2c4f3ed2=0, NULL=2077, NULL=2084, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5eda1f38=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@60a73a76=59, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@61b41698=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4fc9ad39=0, NULL=0, \result=1, NULL=2089, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@74299222=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5248e7e6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@114c03b5=0, NULL=0, tmp=1, NULL=0, tmp___2=59, tmp___0=0, retValue_acc=1, splverifierCounter=0, NULL=0, \result=0, NULL=2076, NULL=2078, NULL=2085, tmp=0, head=0, tmp=0, NULL=0, NULL=2092, NULL=2094, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a4b0eb0=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L51] int pumpRunning = 0; [L52] int systemActive = 1; [L752] int cleanupTimeShifts = 4; [L878] int waterLevel = 1; [L879] int methaneLevelCritical = 0; [L555] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L828] int retValue_acc ; [L829] int tmp ; [L1007] int retValue_acc ; [L1010] retValue_acc = 1 [L1011] return (retValue_acc); [L835] tmp = valid_product() [L837] COND TRUE \read(tmp) [L311] int splverifierCounter ; [L312] int tmp ; [L313] int tmp___0 ; [L314] int tmp___1 ; [L315] int tmp___2 ; [L318] splverifierCounter = 0 Loop: [L320] COND TRUE 1 [L322] COND TRUE splverifierCounter < 4 [L328] tmp = __VERIFIER_nondet_int() [L330] COND FALSE !(\read(tmp)) [L338] tmp___0 = __VERIFIER_nondet_int() [L340] COND FALSE !(\read(tmp___0)) [L348] tmp___2 = __VERIFIER_nondet_int() [L350] COND TRUE \read(tmp___2) [L59] COND FALSE !(\read(pumpRunning)) [L66] COND TRUE \read(systemActive) [L140] int tmp ; [L143] COND FALSE !(\read(pumpRunning)) [L114] int tmp ; [L117] COND FALSE !(\read(pumpRunning)) [L88] int tmp ; [L91] COND TRUE ! pumpRunning [L254] int retValue_acc ; [L255] int tmp ; [L256] int tmp___0 ; [L958] int retValue_acc ; [L961] COND TRUE waterLevel < 2 [L962] retValue_acc = 1 [L963] return (retValue_acc); [L260] tmp = isHighWaterSensorDry() [L262] COND TRUE \read(tmp) [L263] tmp___0 = 0 [L267] retValue_acc = tmp___0 [L268] return (retValue_acc); [L93] tmp = isHighWaterLevel() [L95] COND FALSE !(\read(tmp)) [L852] int tmp ; [L853] int tmp___0 ; [L917] int retValue_acc ; [L920] retValue_acc = methaneLevelCritical [L921] return (retValue_acc); [L857] tmp = isMethaneLevelCritical() [L859] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...