./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_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_b0ec3140-5667-4aa0-ac3c-f3785fdc96c2/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_b0ec3140-5667-4aa0-ac3c-f3785fdc96c2/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b0ec3140-5667-4aa0-ac3c-f3785fdc96c2/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b0ec3140-5667-4aa0-ac3c-f3785fdc96c2/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product63.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b0ec3140-5667-4aa0-ac3c-f3785fdc96c2/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b0ec3140-5667-4aa0-ac3c-f3785fdc96c2/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 2e5cd7f0160b88327fd5a74ba9af5182d0c658c6 ....................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 08:47:22,987 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:47:22,989 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:47:23,004 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:47:23,004 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:47:23,005 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:47:23,007 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:47:23,016 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:47:23,020 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:47:23,024 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:47:23,025 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:47:23,026 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:47:23,027 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:47:23,029 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:47:23,030 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:47:23,031 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:47:23,032 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:47:23,033 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:47:23,035 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:47:23,039 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:47:23,042 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:47:23,046 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:47:23,047 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:47:23,048 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:47:23,051 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:47:23,051 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:47:23,052 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:47:23,053 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:47:23,054 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:47:23,054 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:47:23,055 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:47:23,055 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:47:23,056 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:47:23,057 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:47:23,058 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:47:23,058 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:47:23,059 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:47:23,059 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:47:23,059 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:47:23,060 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:47:23,061 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:47:23,062 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b0ec3140-5667-4aa0-ac3c-f3785fdc96c2/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-25 08:47:23,088 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:47:23,098 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:47:23,099 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:47:23,099 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:47:23,100 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:47:23,100 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-25 08:47:23,100 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-25 08:47:23,100 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-25 08:47:23,101 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-25 08:47:23,101 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-25 08:47:23,101 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-25 08:47:23,101 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:47:23,101 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:47:23,102 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:47:23,102 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:47:23,102 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:47:23,102 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:47:23,102 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-25 08:47:23,103 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-25 08:47:23,103 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-25 08:47:23,104 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:47:23,104 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:47:23,104 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-25 08:47:23,104 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:47:23,105 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-25 08:47:23,105 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:47:23,105 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:47:23,106 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-25 08:47:23,106 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:47:23,107 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:47:23,107 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-25 08:47:23,107 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-25 08:47:23,108 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_b0ec3140-5667-4aa0-ac3c-f3785fdc96c2/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 -> 2e5cd7f0160b88327fd5a74ba9af5182d0c658c6 [2019-11-25 08:47:23,279 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:47:23,295 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:47:23,298 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:47:23,299 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:47:23,300 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:47:23,300 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b0ec3140-5667-4aa0-ac3c-f3785fdc96c2/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product63.cil.c [2019-11-25 08:47:23,359 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b0ec3140-5667-4aa0-ac3c-f3785fdc96c2/bin/uautomizer/data/923b56c7f/3aa44541ab3b4102b435ca062be9a9c1/FLAG8bd57059c [2019-11-25 08:47:23,815 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:47:23,815 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b0ec3140-5667-4aa0-ac3c-f3785fdc96c2/sv-benchmarks/c/product-lines/minepump_spec2_product63.cil.c [2019-11-25 08:47:23,829 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b0ec3140-5667-4aa0-ac3c-f3785fdc96c2/bin/uautomizer/data/923b56c7f/3aa44541ab3b4102b435ca062be9a9c1/FLAG8bd57059c [2019-11-25 08:47:24,143 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b0ec3140-5667-4aa0-ac3c-f3785fdc96c2/bin/uautomizer/data/923b56c7f/3aa44541ab3b4102b435ca062be9a9c1 [2019-11-25 08:47:24,146 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:47:24,147 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:47:24,147 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:47:24,148 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:47:24,151 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:47:24,152 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:47:24" (1/1) ... [2019-11-25 08:47:24,154 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43664afa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:24, skipping insertion in model container [2019-11-25 08:47:24,155 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:47:24" (1/1) ... [2019-11-25 08:47:24,162 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:47:24,203 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:47:24,569 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:47:24,596 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:47:24,707 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:47:24,751 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:47:24,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:24 WrapperNode [2019-11-25 08:47:24,752 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:47:24,755 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:47:24,755 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:47:24,755 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:47:24,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:24" (1/1) ... [2019-11-25 08:47:24,798 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:24" (1/1) ... [2019-11-25 08:47:24,884 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:47:24,894 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:47:24,897 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:47:24,897 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:47:24,906 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:24" (1/1) ... [2019-11-25 08:47:24,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:24" (1/1) ... [2019-11-25 08:47:24,918 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:24" (1/1) ... [2019-11-25 08:47:24,927 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:24" (1/1) ... [2019-11-25 08:47:24,959 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:24" (1/1) ... [2019-11-25 08:47:24,980 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:24" (1/1) ... [2019-11-25 08:47:24,996 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:24" (1/1) ... [2019-11-25 08:47:25,003 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:47:25,003 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:47:25,003 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:47:25,004 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:47:25,004 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b0ec3140-5667-4aa0-ac3c-f3785fdc96c2/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 08:47:25,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:47:25,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-25 08:47:25,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:47:25,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:47:26,135 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:47:26,135 INFO L284 CfgBuilder]: Removed 354 assume(true) statements. [2019-11-25 08:47:26,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:47:26 BoogieIcfgContainer [2019-11-25 08:47:26,137 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:47:26,137 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-25 08:47:26,137 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-25 08:47:26,140 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-25 08:47:26,141 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:47:26,142 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 08:47:24" (1/3) ... [2019-11-25 08:47:26,143 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@59ed500f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:47:26, skipping insertion in model container [2019-11-25 08:47:26,143 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:47:26,143 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:24" (2/3) ... [2019-11-25 08:47:26,144 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@59ed500f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:47:26, skipping insertion in model container [2019-11-25 08:47:26,144 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:47:26,144 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:47:26" (3/3) ... [2019-11-25 08:47:26,147 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product63.cil.c [2019-11-25 08:47:26,189 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-25 08:47:26,189 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-25 08:47:26,189 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-25 08:47:26,189 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:47:26,190 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:47:26,193 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-25 08:47:26,194 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:47:26,194 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-25 08:47:26,227 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 228 states. [2019-11-25 08:47:26,262 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 149 [2019-11-25 08:47:26,262 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:47:26,263 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:47:26,271 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:47:26,271 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:47:26,271 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-25 08:47:26,271 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 228 states. [2019-11-25 08:47:26,286 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 149 [2019-11-25 08:47:26,286 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:47:26,286 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:47:26,287 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:47:26,287 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:47:26,293 INFO L794 eck$LassoCheckResult]: Stem: 94#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string6.base, #t~string6.offset, 1);call write~init~int(77, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(101, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(116, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(104, #t~string6.base, 4 + #t~string6.offset, 1);call write~init~int(58, #t~string6.base, 5 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 6 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string8.base, #t~string8.offset, 1);call write~init~int(82, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(73, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(84, #t~string8.base, 3 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 4 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(75, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string12.base, #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 1 + #t~string12.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(13);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(110, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 3 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string29.base, #t~string29.offset, 1);call write~init~int(80, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(117, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(109, #t~string29.base, 3 + #t~string29.offset, 1);call write~init~int(112, #t~string29.base, 4 + #t~string29.offset, 1);call write~init~int(58, #t~string29.base, 5 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 6 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(110, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 2 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(102, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(102, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 3 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string35.base, #t~string35.offset, 1);call write~init~int(32, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 8#L-1true havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 110#L651true havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 26#L659true main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 96#L132true assume 0 != main_~tmp~0; 19#L103true ~methAndRunningLastTime~0 := 0; 70#L163true havoc test_#t~nondet13, test_#t~nondet14, test_#t~nondet15, test_#t~nondet16, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 67#L174-1true [2019-11-25 08:47:26,293 INFO L796 eck$LassoCheckResult]: Loop: 67#L174-1true assume !false; 210#L316true assume test_~splverifierCounter~0 < 4; 59#L317true test_~tmp~2 := test_#t~nondet13;havoc test_#t~nondet13; 89#L325true assume !(0 != test_~tmp~2); 76#L325-1true test_~tmp___0~1 := test_#t~nondet14;havoc test_#t~nondet14; 99#L335true assume !(0 != test_~tmp___0~1); 98#L335-1true test_~tmp___2~0 := test_#t~nondet15;havoc test_#t~nondet15; 27#L345true assume 0 != test_~tmp___2~0; 10#L351-1true assume !(0 != ~pumpRunning~0); 120#L381true assume !(0 != ~systemActive~0); 189#L388true havoc __utac_acc__Specification2_spec__2_#t~ret1, __utac_acc__Specification2_spec__2_#t~ret2, __utac_acc__Specification2_spec__2_~tmp~1, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~1;havoc isMethaneLevelCritical_~retValue_acc~1;isMethaneLevelCritical_~retValue_acc~1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~1; 213#L244-5true __utac_acc__Specification2_spec__2_#t~ret1 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~1 := __utac_acc__Specification2_spec__2_#t~ret1;havoc __utac_acc__Specification2_spec__2_#t~ret1; 72#L174true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1);~methAndRunningLastTime~0 := 0; 67#L174-1true [2019-11-25 08:47:26,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:26,298 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-11-25 08:47:26,305 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:47:26,305 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902778785] [2019-11-25 08:47:26,305 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:47:26,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:47:26,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:47:26,723 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:47:26,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:26,724 INFO L82 PathProgramCache]: Analyzing trace with hash 17744979, now seen corresponding path program 1 times [2019-11-25 08:47:26,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:47:26,724 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969195077] [2019-11-25 08:47:26,724 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:47:26,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:47:26,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:47:26,741 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:47:26,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:26,743 INFO L82 PathProgramCache]: Analyzing trace with hash 851041485, now seen corresponding path program 1 times [2019-11-25 08:47:26,743 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:47:26,743 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789422246] [2019-11-25 08:47:26,743 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:47:26,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:47:26,866 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 08:47:26,867 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789422246] [2019-11-25 08:47:26,867 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:47:26,868 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-25 08:47:26,868 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509615672] [2019-11-25 08:47:26,966 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:47:26,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-25 08:47:26,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-25 08:47:26,983 INFO L87 Difference]: Start difference. First operand 228 states. Second operand 6 states. [2019-11-25 08:47:27,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:47:27,260 INFO L93 Difference]: Finished difference Result 502 states and 733 transitions. [2019-11-25 08:47:27,261 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-25 08:47:27,263 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 502 states and 733 transitions. [2019-11-25 08:47:27,274 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 327 [2019-11-25 08:47:27,286 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 502 states to 481 states and 712 transitions. [2019-11-25 08:47:27,288 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 481 [2019-11-25 08:47:27,289 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 481 [2019-11-25 08:47:27,290 INFO L73 IsDeterministic]: Start isDeterministic. Operand 481 states and 712 transitions. [2019-11-25 08:47:27,293 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:47:27,293 INFO L688 BuchiCegarLoop]: Abstraction has 481 states and 712 transitions. [2019-11-25 08:47:27,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states and 712 transitions. [2019-11-25 08:47:27,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 265. [2019-11-25 08:47:27,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2019-11-25 08:47:27,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 391 transitions. [2019-11-25 08:47:27,360 INFO L711 BuchiCegarLoop]: Abstraction has 265 states and 391 transitions. [2019-11-25 08:47:27,360 INFO L591 BuchiCegarLoop]: Abstraction has 265 states and 391 transitions. [2019-11-25 08:47:27,361 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-25 08:47:27,361 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 265 states and 391 transitions. [2019-11-25 08:47:27,364 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 180 [2019-11-25 08:47:27,365 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:47:27,365 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:47:27,366 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:47:27,367 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 08:47:27,367 INFO L794 eck$LassoCheckResult]: Stem: 901#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string6.base, #t~string6.offset, 1);call write~init~int(77, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(101, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(116, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(104, #t~string6.base, 4 + #t~string6.offset, 1);call write~init~int(58, #t~string6.base, 5 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 6 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string8.base, #t~string8.offset, 1);call write~init~int(82, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(73, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(84, #t~string8.base, 3 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 4 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(75, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string12.base, #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 1 + #t~string12.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(13);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(110, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 3 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string29.base, #t~string29.offset, 1);call write~init~int(80, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(117, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(109, #t~string29.base, 3 + #t~string29.offset, 1);call write~init~int(112, #t~string29.base, 4 + #t~string29.offset, 1);call write~init~int(58, #t~string29.base, 5 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 6 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(110, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 2 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(102, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(102, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 3 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string35.base, #t~string35.offset, 1);call write~init~int(32, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 759#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 760#L651 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 804#L659 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 805#L132 assume 0 != main_~tmp~0; 788#L103 ~methAndRunningLastTime~0 := 0; 789#L163 havoc test_#t~nondet13, test_#t~nondet14, test_#t~nondet15, test_#t~nondet16, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 876#L174-1 [2019-11-25 08:47:27,367 INFO L796 eck$LassoCheckResult]: Loop: 876#L174-1 assume !false; 877#L316 assume test_~splverifierCounter~0 < 4; 862#L317 test_~tmp~2 := test_#t~nondet13;havoc test_#t~nondet13; 863#L325 assume !(0 != test_~tmp~2); 752#L325-1 test_~tmp___0~1 := test_#t~nondet14;havoc test_#t~nondet14; 889#L335 assume !(0 != test_~tmp___0~1); 899#L335-1 test_~tmp___2~0 := test_#t~nondet15;havoc test_#t~nondet15; 806#L345 assume 0 != test_~tmp___2~0; 764#L351-1 assume !(0 != ~pumpRunning~0); 766#L381 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret19, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 922#L465 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret18, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 792#L439-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret17, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; 793#L413-3 assume !(0 == ~pumpRunning~0); 768#L388 havoc __utac_acc__Specification2_spec__2_#t~ret1, __utac_acc__Specification2_spec__2_#t~ret2, __utac_acc__Specification2_spec__2_~tmp~1, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~1;havoc isMethaneLevelCritical_~retValue_acc~1;isMethaneLevelCritical_~retValue_acc~1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~1; 964#L244-5 __utac_acc__Specification2_spec__2_#t~ret1 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~1 := __utac_acc__Specification2_spec__2_#t~ret1;havoc __utac_acc__Specification2_spec__2_#t~ret1; 882#L174 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1);~methAndRunningLastTime~0 := 0; 876#L174-1 [2019-11-25 08:47:27,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:27,368 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-11-25 08:47:27,368 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:47:27,369 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38985050] [2019-11-25 08:47:27,369 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:47:27,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:47:27,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:47:27,499 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:47:27,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:27,499 INFO L82 PathProgramCache]: Analyzing trace with hash 1227870023, now seen corresponding path program 1 times [2019-11-25 08:47:27,500 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:47:27,500 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905964570] [2019-11-25 08:47:27,500 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:47:27,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:47:27,513 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 08:47:27,513 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905964570] [2019-11-25 08:47:27,513 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:47:27,513 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-25 08:47:27,514 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142839994] [2019-11-25 08:47:27,514 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-25 08:47:27,514 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:47:27,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:47:27,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:47:27,515 INFO L87 Difference]: Start difference. First operand 265 states and 391 transitions. cyclomatic complexity: 129 Second operand 3 states. [2019-11-25 08:47:27,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:47:27,656 INFO L93 Difference]: Finished difference Result 262 states and 365 transitions. [2019-11-25 08:47:27,656 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:47:27,657 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 262 states and 365 transitions. [2019-11-25 08:47:27,660 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 182 [2019-11-25 08:47:27,663 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 262 states to 262 states and 365 transitions. [2019-11-25 08:47:27,663 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 262 [2019-11-25 08:47:27,663 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 262 [2019-11-25 08:47:27,663 INFO L73 IsDeterministic]: Start isDeterministic. Operand 262 states and 365 transitions. [2019-11-25 08:47:27,665 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:47:27,665 INFO L688 BuchiCegarLoop]: Abstraction has 262 states and 365 transitions. [2019-11-25 08:47:27,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states and 365 transitions. [2019-11-25 08:47:27,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2019-11-25 08:47:27,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2019-11-25 08:47:27,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 365 transitions. [2019-11-25 08:47:27,674 INFO L711 BuchiCegarLoop]: Abstraction has 262 states and 365 transitions. [2019-11-25 08:47:27,674 INFO L591 BuchiCegarLoop]: Abstraction has 262 states and 365 transitions. [2019-11-25 08:47:27,674 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-25 08:47:27,674 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 262 states and 365 transitions. [2019-11-25 08:47:27,676 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 182 [2019-11-25 08:47:27,676 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:47:27,677 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:47:27,678 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:47:27,678 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 08:47:27,678 INFO L794 eck$LassoCheckResult]: Stem: 1462#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string6.base, #t~string6.offset, 1);call write~init~int(77, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(101, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(116, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(104, #t~string6.base, 4 + #t~string6.offset, 1);call write~init~int(58, #t~string6.base, 5 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 6 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string8.base, #t~string8.offset, 1);call write~init~int(82, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(73, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(84, #t~string8.base, 3 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 4 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(75, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string12.base, #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 1 + #t~string12.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(13);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(110, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 3 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string29.base, #t~string29.offset, 1);call write~init~int(80, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(117, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(109, #t~string29.base, 3 + #t~string29.offset, 1);call write~init~int(112, #t~string29.base, 4 + #t~string29.offset, 1);call write~init~int(58, #t~string29.base, 5 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 6 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(110, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 2 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(102, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(102, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 3 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string35.base, #t~string35.offset, 1);call write~init~int(32, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 1292#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 1293#L651 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 1329#L659 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 1342#L132 assume 0 != main_~tmp~0; 1322#L103 ~methAndRunningLastTime~0 := 0; 1323#L163 havoc test_#t~nondet13, test_#t~nondet14, test_#t~nondet15, test_#t~nondet16, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1429#L174-1 [2019-11-25 08:47:27,679 INFO L796 eck$LassoCheckResult]: Loop: 1429#L174-1 assume !false; 1430#L316 assume test_~splverifierCounter~0 < 4; 1417#L317 test_~tmp~2 := test_#t~nondet13;havoc test_#t~nondet13; 1418#L325 assume !(0 != test_~tmp~2); 1285#L325-1 test_~tmp___0~1 := test_#t~nondet14;havoc test_#t~nondet14; 1439#L335 assume !(0 != test_~tmp___0~1); 1460#L335-1 test_~tmp___2~0 := test_#t~nondet15;havoc test_#t~nondet15; 1351#L345 assume 0 != test_~tmp___2~0; 1294#L351-1 assume !(0 != ~pumpRunning~0); 1295#L381 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret19, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 1343#L465 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret18, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 1326#L439-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret17, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; 1327#L413-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret38, isHighWaterLevel_~retValue_acc~7, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~7;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~3;havoc isHighWaterSensorDry_~retValue_acc~3; 1436#L284-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~3 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~3; 1437#L289-3 isHighWaterLevel_#t~ret38 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret38;havoc isHighWaterLevel_#t~ret38; 1400#L584-9 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~2 := 0; 1375#L584-11 isHighWaterLevel_~retValue_acc~7 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~7; 1362#L590-3 processEnvironment__wrappee__highWaterSensor_#t~ret17 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~3 := processEnvironment__wrappee__highWaterSensor_#t~ret17;havoc processEnvironment__wrappee__highWaterSensor_#t~ret17; 1296#L417-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~3); 1297#L388 havoc __utac_acc__Specification2_spec__2_#t~ret1, __utac_acc__Specification2_spec__2_#t~ret2, __utac_acc__Specification2_spec__2_~tmp~1, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~1;havoc isMethaneLevelCritical_~retValue_acc~1;isMethaneLevelCritical_~retValue_acc~1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~1; 1456#L244-5 __utac_acc__Specification2_spec__2_#t~ret1 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~1 := __utac_acc__Specification2_spec__2_#t~ret1;havoc __utac_acc__Specification2_spec__2_#t~ret1; 1433#L174 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1);~methAndRunningLastTime~0 := 0; 1429#L174-1 [2019-11-25 08:47:27,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:27,679 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-11-25 08:47:27,679 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:47:27,680 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069309545] [2019-11-25 08:47:27,680 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:47:27,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:47:27,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:47:27,757 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:47:27,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:27,758 INFO L82 PathProgramCache]: Analyzing trace with hash -1200754989, now seen corresponding path program 1 times [2019-11-25 08:47:27,758 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:47:27,758 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982828928] [2019-11-25 08:47:27,759 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:47:27,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:47:27,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:47:27,777 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:47:27,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:27,778 INFO L82 PathProgramCache]: Analyzing trace with hash -2067939431, now seen corresponding path program 1 times [2019-11-25 08:47:27,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:47:27,779 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840100876] [2019-11-25 08:47:27,779 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:47:27,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:47:27,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:47:27,890 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:47:28,088 WARN L192 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 51 [2019-11-25 08:47:56,052 WARN L192 SmtUtils]: Spent 27.88 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-11-25 08:48:09,808 WARN L192 SmtUtils]: Spent 13.74 s on a formula simplification that was a NOOP. DAG size: 402 [2019-11-25 08:48:09,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 08:48:09 BoogieIcfgContainer [2019-11-25 08:48:09,872 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-25 08:48:09,873 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:48:09,873 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:48:09,873 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:48:09,874 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:47:26" (3/4) ... [2019-11-25 08:48:09,876 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-25 08:48:09,929 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b0ec3140-5667-4aa0-ac3c-f3785fdc96c2/bin/uautomizer/witness.graphml [2019-11-25 08:48:09,929 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:48:09,931 INFO L168 Benchmark]: Toolchain (without parser) took 45784.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 192.4 MB). Free memory was 943.4 MB in the beginning and 1.0 GB in the end (delta: -76.0 MB). Peak memory consumption was 116.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:48:09,931 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:48:09,932 INFO L168 Benchmark]: CACSL2BoogieTranslator took 606.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -162.0 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:48:09,932 INFO L168 Benchmark]: Boogie Procedure Inliner took 138.82 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 08:48:09,933 INFO L168 Benchmark]: Boogie Preprocessor took 108.90 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 08:48:09,933 INFO L168 Benchmark]: RCFGBuilder took 1133.40 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: 86.9 MB). Peak memory consumption was 86.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:48:09,934 INFO L168 Benchmark]: BuchiAutomizer took 43735.28 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 69.7 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: -14.0 MB). Peak memory consumption was 218.2 MB. Max. memory is 11.5 GB. [2019-11-25 08:48:09,934 INFO L168 Benchmark]: Witness Printer took 56.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:48:09,937 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 606.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -162.0 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 138.82 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 108.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1133.40 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: 86.9 MB). Peak memory consumption was 86.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 43735.28 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 69.7 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: -14.0 MB). Peak memory consumption was 218.2 MB. Max. memory is 11.5 GB. * Witness Printer took 56.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 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 262 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 43.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 42.9s. 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, 216 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 265 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 573 SDtfs, 1795 SDslu, 1253 SDs, 0 SdLazy, 81 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: 315]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=3829} State at position 1 is {retValue_acc=0, NULL=0, NULL=0, NULL=0, NULL=25835, NULL=0, retValue_acc=0, NULL=3829, NULL=10576, NULL=0, NULL=0, NULL=10567, NULL=3833, NULL=25836, methaneLevelCritical=0, NULL=3831, NULL=10568, tmp___0=0, retValue_acc=1, tmp=0, NULL=0, NULL=0, NULL=10573, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1f5fb8b=0, NULL=3832, retValue_acc=0, tmp___1=0, NULL=10577, NULL=16799, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43767a38=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4995d894=0, cleanupTimeShifts=4, NULL=3830, NULL=16802, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=16800, NULL=0, NULL=10574, \result=0, NULL=0, NULL=10565, NULL=10570, \result=1, head=0, pumpRunning=0, tmp=1, \result=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@32e2f588=0, NULL=0, NULL=0, NULL=0, NULL=16801, \result=1, tmp___0=0, NULL=16798, NULL=0, NULL=0, NULL=0, tmp=1, tmp___2=52, tmp___0=0, splverifierCounter=0, NULL=0, methAndRunningLastTime=0, \result=0, NULL=10571, NULL=16797, NULL=10566, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57af8c77=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a675d5e=52, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e6429a2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4f13c11f=0, NULL=10569, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@19bf2b0e=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59b4a8eb=0, tmp=0, NULL=10575, NULL=0, NULL=0, tmp=0, NULL=10572, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@33c95df9=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L40] int cleanupTimeShifts = 4; [L157] int methAndRunningLastTime ; [L201] int waterLevel = 1; [L202] int methaneLevelCritical = 0; [L374] int pumpRunning = 0; [L375] int systemActive = 1; [L833] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L123] int retValue_acc ; [L124] int tmp ; [L655] int retValue_acc ; [L658] retValue_acc = 1 [L659] return (retValue_acc); [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) [L162] methAndRunningLastTime = 0 [L306] int splverifierCounter ; [L307] int tmp ; [L308] int tmp___0 ; [L309] int tmp___1 ; [L310] int tmp___2 ; [L313] splverifierCounter = 0 Loop: [L315] COND TRUE 1 [L317] COND TRUE splverifierCounter < 4 [L323] tmp = __VERIFIER_nondet_int() [L325] COND FALSE !(\read(tmp)) [L333] tmp___0 = __VERIFIER_nondet_int() [L335] COND FALSE !(\read(tmp___0)) [L343] tmp___2 = __VERIFIER_nondet_int() [L345] COND TRUE \read(tmp___2) [L381] COND FALSE !(\read(pumpRunning)) [L388] COND TRUE \read(systemActive) [L462] int tmp ; [L465] COND FALSE !(\read(pumpRunning)) [L436] int tmp ; [L439] COND FALSE !(\read(pumpRunning)) [L410] int tmp ; [L413] COND TRUE ! pumpRunning [L576] int retValue_acc ; [L577] int tmp ; [L578] int tmp___0 ; [L281] int retValue_acc ; [L284] COND TRUE waterLevel < 2 [L285] retValue_acc = 1 [L286] return (retValue_acc); [L582] tmp = isHighWaterSensorDry() [L584] COND TRUE \read(tmp) [L585] tmp___0 = 0 [L589] retValue_acc = tmp___0 [L590] return (retValue_acc); [L415] tmp = isHighWaterLevel() [L417] COND FALSE !(\read(tmp)) [L167] int tmp ; [L168] int tmp___0 ; [L240] int retValue_acc ; [L243] retValue_acc = methaneLevelCritical [L244] return (retValue_acc); [L172] tmp = isMethaneLevelCritical() [L174] COND FALSE !(\read(tmp)) [L190] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...