./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product61.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_19507f4c-9ec4-4d89-9e71-f1ef853895b9/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_19507f4c-9ec4-4d89-9e71-f1ef853895b9/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_19507f4c-9ec4-4d89-9e71-f1ef853895b9/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_19507f4c-9ec4-4d89-9e71-f1ef853895b9/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product61.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_19507f4c-9ec4-4d89-9e71-f1ef853895b9/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_19507f4c-9ec4-4d89-9e71-f1ef853895b9/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 8b70f1184a0eb3743d86be3e0236101e1312b9f0 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-19 23:43:00,102 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 23:43:00,105 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 23:43:00,125 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 23:43:00,126 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 23:43:00,127 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 23:43:00,130 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 23:43:00,147 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 23:43:00,149 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 23:43:00,153 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 23:43:00,155 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 23:43:00,156 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 23:43:00,157 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 23:43:00,160 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 23:43:00,161 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 23:43:00,162 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 23:43:00,163 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 23:43:00,164 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 23:43:00,167 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 23:43:00,169 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 23:43:00,171 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 23:43:00,173 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 23:43:00,174 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 23:43:00,175 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 23:43:00,178 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 23:43:00,179 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 23:43:00,179 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 23:43:00,180 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 23:43:00,180 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 23:43:00,182 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 23:43:00,182 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 23:43:00,183 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 23:43:00,183 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 23:43:00,184 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 23:43:00,185 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 23:43:00,186 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 23:43:00,187 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 23:43:00,187 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 23:43:00,187 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 23:43:00,188 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 23:43:00,189 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 23:43:00,190 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_19507f4c-9ec4-4d89-9e71-f1ef853895b9/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-19 23:43:00,210 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 23:43:00,210 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 23:43:00,211 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 23:43:00,212 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 23:43:00,212 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 23:43:00,212 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-19 23:43:00,212 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-19 23:43:00,213 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-19 23:43:00,213 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-19 23:43:00,213 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-19 23:43:00,213 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-19 23:43:00,214 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 23:43:00,214 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 23:43:00,214 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-19 23:43:00,214 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 23:43:00,215 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 23:43:00,215 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 23:43:00,215 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-19 23:43:00,215 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-19 23:43:00,216 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-19 23:43:00,216 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 23:43:00,216 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 23:43:00,216 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-19 23:43:00,216 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 23:43:00,217 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-19 23:43:00,217 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 23:43:00,217 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 23:43:00,217 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-19 23:43:00,218 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 23:43:00,218 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 23:43:00,218 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-19 23:43:00,219 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-19 23:43:00,220 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_19507f4c-9ec4-4d89-9e71-f1ef853895b9/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 -> 8b70f1184a0eb3743d86be3e0236101e1312b9f0 [2019-11-19 23:43:00,402 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 23:43:00,417 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 23:43:00,421 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 23:43:00,423 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 23:43:00,423 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 23:43:00,424 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_19507f4c-9ec4-4d89-9e71-f1ef853895b9/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product61.cil.c [2019-11-19 23:43:00,519 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_19507f4c-9ec4-4d89-9e71-f1ef853895b9/bin/uautomizer/data/99e1e1ae5/e8569ac64b424a10b64731ca21790b0c/FLAGbb5d86420 [2019-11-19 23:43:01,128 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 23:43:01,129 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_19507f4c-9ec4-4d89-9e71-f1ef853895b9/sv-benchmarks/c/product-lines/minepump_spec5_product61.cil.c [2019-11-19 23:43:01,146 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_19507f4c-9ec4-4d89-9e71-f1ef853895b9/bin/uautomizer/data/99e1e1ae5/e8569ac64b424a10b64731ca21790b0c/FLAGbb5d86420 [2019-11-19 23:43:01,382 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_19507f4c-9ec4-4d89-9e71-f1ef853895b9/bin/uautomizer/data/99e1e1ae5/e8569ac64b424a10b64731ca21790b0c [2019-11-19 23:43:01,386 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 23:43:01,387 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 23:43:01,388 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 23:43:01,388 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 23:43:01,392 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 23:43:01,393 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:43:01" (1/1) ... [2019-11-19 23:43:01,395 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a304361 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:43:01, skipping insertion in model container [2019-11-19 23:43:01,395 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:43:01" (1/1) ... [2019-11-19 23:43:01,402 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 23:43:01,464 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 23:43:01,937 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:43:01,954 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 23:43:02,086 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:43:02,150 INFO L192 MainTranslator]: Completed translation [2019-11-19 23:43:02,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:43:02 WrapperNode [2019-11-19 23:43:02,151 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 23:43:02,152 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 23:43:02,152 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 23:43:02,152 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 23:43:02,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:43:02" (1/1) ... [2019-11-19 23:43:02,186 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:43:02" (1/1) ... [2019-11-19 23:43:02,281 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 23:43:02,281 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 23:43:02,282 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 23:43:02,282 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 23:43:02,295 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:43:02" (1/1) ... [2019-11-19 23:43:02,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:43:02" (1/1) ... [2019-11-19 23:43:02,306 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:43:02" (1/1) ... [2019-11-19 23:43:02,307 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:43:02" (1/1) ... [2019-11-19 23:43:02,351 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:43:02" (1/1) ... [2019-11-19 23:43:02,368 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:43:02" (1/1) ... [2019-11-19 23:43:02,373 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:43:02" (1/1) ... [2019-11-19 23:43:02,382 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 23:43:02,383 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 23:43:02,383 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 23:43:02,383 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 23:43:02,385 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:43:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_19507f4c-9ec4-4d89-9e71-f1ef853895b9/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 [2019-11-19 23:43:02,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 23:43:02,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-19 23:43:02,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 23:43:02,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 23:43:03,861 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 23:43:03,861 INFO L285 CfgBuilder]: Removed 362 assume(true) statements. [2019-11-19 23:43:03,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:43:03 BoogieIcfgContainer [2019-11-19 23:43:03,863 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 23:43:03,864 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-19 23:43:03,864 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-19 23:43:03,869 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-19 23:43:03,870 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 23:43:03,870 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 11:43:01" (1/3) ... [2019-11-19 23:43:03,872 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@9232851 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 11:43:03, skipping insertion in model container [2019-11-19 23:43:03,872 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 23:43:03,873 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:43:02" (2/3) ... [2019-11-19 23:43:03,874 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@9232851 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 11:43:03, skipping insertion in model container [2019-11-19 23:43:03,875 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 23:43:03,875 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:43:03" (3/3) ... [2019-11-19 23:43:03,880 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product61.cil.c [2019-11-19 23:43:03,953 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-19 23:43:03,953 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-19 23:43:03,953 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-19 23:43:03,953 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 23:43:03,954 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 23:43:03,954 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-19 23:43:03,954 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 23:43:03,954 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-19 23:43:03,997 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 231 states. [2019-11-19 23:43:04,040 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 151 [2019-11-19 23:43:04,040 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 23:43:04,040 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 23:43:04,050 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:43:04,050 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:43:04,050 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-19 23:43:04,050 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 231 states. [2019-11-19 23:43:04,065 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 151 [2019-11-19 23:43:04,066 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 23:43:04,066 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 23:43:04,067 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:43:04,068 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:43:04,074 INFO L794 eck$LassoCheckResult]: Stem: 90#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(13);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string16.base, #t~string16.offset, 1);call write~init~int(80, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(117, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(109, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(112, #t~string16.base, 4 + #t~string16.offset, 1);call write~init~int(58, #t~string16.base, 5 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 6 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string22.base, #t~string22.offset, 1);call write~init~int(32, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string24.base, #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 1 + #t~string24.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(13);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string30.base, #t~string30.offset, 1);call write~init~int(77, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(101, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(116, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(104, #t~string30.base, 4 + #t~string30.offset, 1);call write~init~int(58, #t~string30.base, 5 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 6 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string32.base, #t~string32.offset, 1);call write~init~int(82, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(73, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(84, #t~string32.base, 3 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 4 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(75, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string36.base, #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 1 + #t~string36.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 3#L-1true havoc main_#res;havoc main_#t~ret76, main_~retValue_acc~13, main_~tmp~11;havoc main_~retValue_acc~13;havoc main_~tmp~11; 109#L908true havoc valid_product_#res;havoc valid_product_~retValue_acc~12;havoc valid_product_~retValue_acc~12;valid_product_~retValue_acc~12 := 1;valid_product_#res := valid_product_~retValue_acc~12; 215#L916true main_#t~ret76 := valid_product_#res;main_~tmp~11 := main_#t~ret76;havoc main_#t~ret76; 82#L1013true assume 0 != main_~tmp~11; 14#L989true ~switchedOnBeforeTS~0 := 0; 38#L840true havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 224#L861-1true [2019-11-19 23:43:04,075 INFO L796 eck$LassoCheckResult]: Loop: 224#L861-1true assume !false; 96#L55true assume test_~splverifierCounter~0 < 4; 164#L56true test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 35#L64true assume !(0 != test_~tmp~0); 33#L64-1true test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 217#L74true assume !(0 != test_~tmp___0~0); 203#L74-1true test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 129#L84true assume 0 != test_~tmp___2~0; 233#L90-2true havoc __utac_acc__Specification5_spec__2_#t~ret72;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 27#L284true __utac_acc__Specification5_spec__2_#t~ret72 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret72;havoc __utac_acc__Specification5_spec__2_#t~ret72; 222#L850true assume !(0 != ~pumpRunning~0); 43#L130true assume !(0 != ~systemActive~0); 120#L137true havoc __utac_acc__Specification5_spec__3_#t~ret73, __utac_acc__Specification5_spec__3_#t~ret74, __utac_acc__Specification5_spec__3_~tmp~10, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~10;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 4#L439true __utac_acc__Specification5_spec__3_#t~ret73 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~10 := __utac_acc__Specification5_spec__3_#t~ret73;havoc __utac_acc__Specification5_spec__3_#t~ret73; 220#L861true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~10); 224#L861-1true [2019-11-19 23:43:04,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:43:04,082 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-11-19 23:43:04,091 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:43:04,092 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187984780] [2019-11-19 23:43:04,092 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:43:04,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:43:04,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:43:04,507 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:43:04,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:43:04,513 INFO L82 PathProgramCache]: Analyzing trace with hash 100753900, now seen corresponding path program 1 times [2019-11-19 23:43:04,513 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:43:04,513 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738369227] [2019-11-19 23:43:04,514 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:43:04,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:43:04,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:43:04,550 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:43:04,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:43:04,558 INFO L82 PathProgramCache]: Analyzing trace with hash 2034779110, now seen corresponding path program 1 times [2019-11-19 23:43:04,559 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:43:04,560 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700738174] [2019-11-19 23:43:04,560 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:43:04,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:43:04,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:43:04,785 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700738174] [2019-11-19 23:43:04,786 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 23:43:04,786 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-19 23:43:04,787 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059152660] [2019-11-19 23:43:04,969 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:43:05,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-19 23:43:05,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-19 23:43:05,005 INFO L87 Difference]: Start difference. First operand 231 states. Second operand 6 states. [2019-11-19 23:43:05,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:43:05,259 INFO L93 Difference]: Finished difference Result 231 states and 334 transitions. [2019-11-19 23:43:05,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-19 23:43:05,262 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 231 states and 334 transitions. [2019-11-19 23:43:05,271 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 149 [2019-11-19 23:43:05,282 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 231 states to 224 states and 327 transitions. [2019-11-19 23:43:05,284 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 224 [2019-11-19 23:43:05,286 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 224 [2019-11-19 23:43:05,287 INFO L73 IsDeterministic]: Start isDeterministic. Operand 224 states and 327 transitions. [2019-11-19 23:43:05,290 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 23:43:05,290 INFO L688 BuchiCegarLoop]: Abstraction has 224 states and 327 transitions. [2019-11-19 23:43:05,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states and 327 transitions. [2019-11-19 23:43:05,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2019-11-19 23:43:05,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2019-11-19 23:43:05,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 327 transitions. [2019-11-19 23:43:05,353 INFO L711 BuchiCegarLoop]: Abstraction has 224 states and 327 transitions. [2019-11-19 23:43:05,353 INFO L591 BuchiCegarLoop]: Abstraction has 224 states and 327 transitions. [2019-11-19 23:43:05,354 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-19 23:43:05,354 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 224 states and 327 transitions. [2019-11-19 23:43:05,358 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 149 [2019-11-19 23:43:05,358 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 23:43:05,359 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 23:43:05,360 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:43:05,360 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:43:05,361 INFO L794 eck$LassoCheckResult]: Stem: 611#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(13);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string16.base, #t~string16.offset, 1);call write~init~int(80, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(117, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(109, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(112, #t~string16.base, 4 + #t~string16.offset, 1);call write~init~int(58, #t~string16.base, 5 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 6 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string22.base, #t~string22.offset, 1);call write~init~int(32, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string24.base, #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 1 + #t~string24.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(13);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string30.base, #t~string30.offset, 1);call write~init~int(77, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(101, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(116, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(104, #t~string30.base, 4 + #t~string30.offset, 1);call write~init~int(58, #t~string30.base, 5 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 6 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string32.base, #t~string32.offset, 1);call write~init~int(82, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(73, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(84, #t~string32.base, 3 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 4 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(75, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string36.base, #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 1 + #t~string36.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 480#L-1 havoc main_#res;havoc main_#t~ret76, main_~retValue_acc~13, main_~tmp~11;havoc main_~retValue_acc~13;havoc main_~tmp~11; 481#L908 havoc valid_product_#res;havoc valid_product_~retValue_acc~12;havoc valid_product_~retValue_acc~12;valid_product_~retValue_acc~12 := 1;valid_product_#res := valid_product_~retValue_acc~12; 636#L916 main_#t~ret76 := valid_product_#res;main_~tmp~11 := main_#t~ret76;havoc main_#t~ret76; 604#L1013 assume 0 != main_~tmp~11; 497#L989 ~switchedOnBeforeTS~0 := 0; 498#L840 havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 537#L861-1 [2019-11-19 23:43:05,362 INFO L796 eck$LassoCheckResult]: Loop: 537#L861-1 assume !false; 621#L55 assume test_~splverifierCounter~0 < 4; 622#L56 test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 531#L64 assume !(0 != test_~tmp~0); 527#L64-1 test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 528#L74 assume !(0 != test_~tmp___0~0); 700#L74-1 test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 654#L84 assume 0 != test_~tmp___2~0; 656#L90-2 havoc __utac_acc__Specification5_spec__2_#t~ret72;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 520#L284 __utac_acc__Specification5_spec__2_#t~ret72 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret72;havoc __utac_acc__Specification5_spec__2_#t~ret72; 521#L850 assume !(0 != ~pumpRunning~0); 544#L130 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret6, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 545#L214 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret5, processEnvironment__wrappee__methaneQuery_~tmp~2;havoc processEnvironment__wrappee__methaneQuery_~tmp~2; 650#L188-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret4, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 683#L162-3 assume !(0 == ~pumpRunning~0); 509#L137 havoc __utac_acc__Specification5_spec__3_#t~ret73, __utac_acc__Specification5_spec__3_#t~ret74, __utac_acc__Specification5_spec__3_~tmp~10, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~10;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 482#L439 __utac_acc__Specification5_spec__3_#t~ret73 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~10 := __utac_acc__Specification5_spec__3_#t~ret73;havoc __utac_acc__Specification5_spec__3_#t~ret73; 483#L861 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~10); 537#L861-1 [2019-11-19 23:43:05,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:43:05,362 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-11-19 23:43:05,363 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:43:05,363 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110824473] [2019-11-19 23:43:05,363 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:43:05,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:43:05,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:43:05,491 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:43:05,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:43:05,492 INFO L82 PathProgramCache]: Analyzing trace with hash 245468073, now seen corresponding path program 1 times [2019-11-19 23:43:05,493 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:43:05,493 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332341072] [2019-11-19 23:43:05,493 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:43:05,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:43:05,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:43:05,516 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332341072] [2019-11-19 23:43:05,516 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 23:43:05,516 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-19 23:43:05,517 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866272666] [2019-11-19 23:43:05,517 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-19 23:43:05,518 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:43:05,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 23:43:05,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 23:43:05,519 INFO L87 Difference]: Start difference. First operand 224 states and 327 transitions. cyclomatic complexity: 105 Second operand 3 states. [2019-11-19 23:43:05,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:43:05,748 INFO L93 Difference]: Finished difference Result 228 states and 314 transitions. [2019-11-19 23:43:05,749 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 23:43:05,750 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 228 states and 314 transitions. [2019-11-19 23:43:05,754 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 156 [2019-11-19 23:43:05,763 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 228 states to 228 states and 314 transitions. [2019-11-19 23:43:05,763 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 228 [2019-11-19 23:43:05,766 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 228 [2019-11-19 23:43:05,766 INFO L73 IsDeterministic]: Start isDeterministic. Operand 228 states and 314 transitions. [2019-11-19 23:43:05,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 23:43:05,773 INFO L688 BuchiCegarLoop]: Abstraction has 228 states and 314 transitions. [2019-11-19 23:43:05,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states and 314 transitions. [2019-11-19 23:43:05,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2019-11-19 23:43:05,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2019-11-19 23:43:05,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 314 transitions. [2019-11-19 23:43:05,803 INFO L711 BuchiCegarLoop]: Abstraction has 228 states and 314 transitions. [2019-11-19 23:43:05,803 INFO L591 BuchiCegarLoop]: Abstraction has 228 states and 314 transitions. [2019-11-19 23:43:05,804 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-19 23:43:05,804 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 228 states and 314 transitions. [2019-11-19 23:43:05,808 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 156 [2019-11-19 23:43:05,808 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 23:43:05,809 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 23:43:05,813 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:43:05,814 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:43:05,814 INFO L794 eck$LassoCheckResult]: Stem: 1111#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(13);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string16.base, #t~string16.offset, 1);call write~init~int(80, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(117, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(109, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(112, #t~string16.base, 4 + #t~string16.offset, 1);call write~init~int(58, #t~string16.base, 5 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 6 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string22.base, #t~string22.offset, 1);call write~init~int(32, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string24.base, #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 1 + #t~string24.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(13);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string30.base, #t~string30.offset, 1);call write~init~int(77, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(101, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(116, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(104, #t~string30.base, 4 + #t~string30.offset, 1);call write~init~int(58, #t~string30.base, 5 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 6 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string32.base, #t~string32.offset, 1);call write~init~int(82, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(73, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(84, #t~string32.base, 3 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 4 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(75, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string36.base, #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 1 + #t~string36.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 945#L-1 havoc main_#res;havoc main_#t~ret76, main_~retValue_acc~13, main_~tmp~11;havoc main_~retValue_acc~13;havoc main_~tmp~11; 946#L908 havoc valid_product_#res;havoc valid_product_~retValue_acc~12;havoc valid_product_~retValue_acc~12;valid_product_~retValue_acc~12 := 1;valid_product_#res := valid_product_~retValue_acc~12; 1121#L916 main_#t~ret76 := valid_product_#res;main_~tmp~11 := main_#t~ret76;havoc main_#t~ret76; 1105#L1013 assume 0 != main_~tmp~11; 1005#L989 ~switchedOnBeforeTS~0 := 0; 1006#L840 havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 939#L861-1 [2019-11-19 23:43:05,816 INFO L796 eck$LassoCheckResult]: Loop: 939#L861-1 assume !false; 1115#L55 assume test_~splverifierCounter~0 < 4; 1022#L56 test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 1023#L64 assume !(0 != test_~tmp~0); 1051#L64-1 test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 1052#L74 assume !(0 != test_~tmp___0~0); 1084#L74-1 test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 942#L84 assume 0 != test_~tmp___2~0; 944#L90-2 havoc __utac_acc__Specification5_spec__2_#t~ret72;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 1044#L284 __utac_acc__Specification5_spec__2_#t~ret72 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret72;havoc __utac_acc__Specification5_spec__2_#t~ret72; 1045#L850 assume !(0 != ~pumpRunning~0); 1062#L130 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret6, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 1063#L214 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret5, processEnvironment__wrappee__methaneQuery_~tmp~2;havoc processEnvironment__wrappee__methaneQuery_~tmp~2; 989#L188-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret4, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 990#L162-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret25, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 974#L447-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 975#L452-3 isHighWaterLevel_#t~ret25 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret25;havoc isHighWaterLevel_#t~ret25; 1047#L333-9 assume 0 != isHighWaterLevel_~tmp~5;isHighWaterLevel_~tmp___0~1 := 0; 1070#L333-11 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 1066#L339-3 processEnvironment__wrappee__highWaterSensor_#t~ret4 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~1 := processEnvironment__wrappee__highWaterSensor_#t~ret4;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4; 1027#L166-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1); 987#L137 havoc __utac_acc__Specification5_spec__3_#t~ret73, __utac_acc__Specification5_spec__3_#t~ret74, __utac_acc__Specification5_spec__3_~tmp~10, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~10;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 954#L439 __utac_acc__Specification5_spec__3_#t~ret73 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~10 := __utac_acc__Specification5_spec__3_#t~ret73;havoc __utac_acc__Specification5_spec__3_#t~ret73; 955#L861 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~10); 939#L861-1 [2019-11-19 23:43:05,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:43:05,817 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-11-19 23:43:05,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:43:05,817 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472881389] [2019-11-19 23:43:05,818 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:43:05,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:43:05,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:43:05,991 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:43:05,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:43:05,999 INFO L82 PathProgramCache]: Analyzing trace with hash 804540373, now seen corresponding path program 1 times [2019-11-19 23:43:05,999 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:43:06,000 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453037544] [2019-11-19 23:43:06,001 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:43:06,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:43:06,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:43:06,075 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453037544] [2019-11-19 23:43:06,075 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 23:43:06,076 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-19 23:43:06,076 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115987113] [2019-11-19 23:43:06,077 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-19 23:43:06,077 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:43:06,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-19 23:43:06,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-19 23:43:06,078 INFO L87 Difference]: Start difference. First operand 228 states and 314 transitions. cyclomatic complexity: 88 Second operand 5 states. [2019-11-19 23:43:06,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:43:06,634 INFO L93 Difference]: Finished difference Result 1078 states and 1497 transitions. [2019-11-19 23:43:06,635 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-19 23:43:06,635 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1078 states and 1497 transitions. [2019-11-19 23:43:06,650 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 733 [2019-11-19 23:43:06,664 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1078 states to 1078 states and 1497 transitions. [2019-11-19 23:43:06,664 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1078 [2019-11-19 23:43:06,666 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1078 [2019-11-19 23:43:06,666 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1078 states and 1497 transitions. [2019-11-19 23:43:06,670 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 23:43:06,671 INFO L688 BuchiCegarLoop]: Abstraction has 1078 states and 1497 transitions. [2019-11-19 23:43:06,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1078 states and 1497 transitions. [2019-11-19 23:43:06,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078 to 446. [2019-11-19 23:43:06,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 446 states. [2019-11-19 23:43:06,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 609 transitions. [2019-11-19 23:43:06,709 INFO L711 BuchiCegarLoop]: Abstraction has 446 states and 609 transitions. [2019-11-19 23:43:06,709 INFO L591 BuchiCegarLoop]: Abstraction has 446 states and 609 transitions. [2019-11-19 23:43:06,709 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-19 23:43:06,710 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 446 states and 609 transitions. [2019-11-19 23:43:06,715 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 310 [2019-11-19 23:43:06,715 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 23:43:06,715 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 23:43:06,717 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:43:06,717 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:43:06,718 INFO L794 eck$LassoCheckResult]: Stem: 2451#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(13);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string16.base, #t~string16.offset, 1);call write~init~int(80, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(117, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(109, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(112, #t~string16.base, 4 + #t~string16.offset, 1);call write~init~int(58, #t~string16.base, 5 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 6 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string22.base, #t~string22.offset, 1);call write~init~int(32, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string24.base, #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 1 + #t~string24.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(13);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string30.base, #t~string30.offset, 1);call write~init~int(77, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(101, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(116, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(104, #t~string30.base, 4 + #t~string30.offset, 1);call write~init~int(58, #t~string30.base, 5 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 6 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string32.base, #t~string32.offset, 1);call write~init~int(82, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(73, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(84, #t~string32.base, 3 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 4 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(75, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string36.base, #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 1 + #t~string36.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 2272#L-1 havoc main_#res;havoc main_#t~ret76, main_~retValue_acc~13, main_~tmp~11;havoc main_~retValue_acc~13;havoc main_~tmp~11; 2273#L908 havoc valid_product_#res;havoc valid_product_~retValue_acc~12;havoc valid_product_~retValue_acc~12;valid_product_~retValue_acc~12 := 1;valid_product_#res := valid_product_~retValue_acc~12; 2466#L916 main_#t~ret76 := valid_product_#res;main_~tmp~11 := main_#t~ret76;havoc main_#t~ret76; 2444#L1013 assume 0 != main_~tmp~11; 2336#L989 ~switchedOnBeforeTS~0 := 0; 2337#L840 havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2391#L861-1 [2019-11-19 23:43:06,718 INFO L796 eck$LassoCheckResult]: Loop: 2391#L861-1 assume !false; 2669#L55 assume test_~splverifierCounter~0 < 4; 2670#L56 test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 2700#L64 assume !(0 != test_~tmp~0); 2697#L64-1 test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 2696#L74 assume !(0 != test_~tmp___0~0); 2694#L74-1 test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 2693#L84 assume 0 != test_~tmp___2~0; 2691#L90-2 havoc __utac_acc__Specification5_spec__2_#t~ret72;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 2690#L284 __utac_acc__Specification5_spec__2_#t~ret72 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret72;havoc __utac_acc__Specification5_spec__2_#t~ret72; 2679#L850 assume !(0 != ~pumpRunning~0); 2397#L130 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret6, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 2398#L214 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret5, processEnvironment__wrappee__methaneQuery_~tmp~2;havoc processEnvironment__wrappee__methaneQuery_~tmp~2; 2320#L188-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret4, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 2321#L162-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret25, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 2303#L447-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 2304#L452-3 isHighWaterLevel_#t~ret25 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret25;havoc isHighWaterLevel_#t~ret25; 2379#L333-9 assume 0 != isHighWaterLevel_~tmp~5;isHighWaterLevel_~tmp___0~1 := 0; 2406#L333-11 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 2401#L339-3 processEnvironment__wrappee__highWaterSensor_#t~ret4 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~1 := processEnvironment__wrappee__highWaterSensor_#t~ret4;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4; 2360#L166-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1); 2318#L137 havoc __utac_acc__Specification5_spec__3_#t~ret73, __utac_acc__Specification5_spec__3_#t~ret74, __utac_acc__Specification5_spec__3_~tmp~10, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~10;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 2282#L439 __utac_acc__Specification5_spec__3_#t~ret73 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~10 := __utac_acc__Specification5_spec__3_#t~ret73;havoc __utac_acc__Specification5_spec__3_#t~ret73; 2283#L861 assume 2 != __utac_acc__Specification5_spec__3_~tmp~10;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 2374#L284-1 __utac_acc__Specification5_spec__3_#t~ret74 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~3 := __utac_acc__Specification5_spec__3_#t~ret74;havoc __utac_acc__Specification5_spec__3_#t~ret74; 2375#L865 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~3); 2391#L861-1 [2019-11-19 23:43:06,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:43:06,719 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2019-11-19 23:43:06,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:43:06,719 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485571640] [2019-11-19 23:43:06,720 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:43:06,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:43:06,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:43:06,849 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:43:06,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:43:06,850 INFO L82 PathProgramCache]: Analyzing trace with hash 69177840, now seen corresponding path program 1 times [2019-11-19 23:43:06,851 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:43:06,851 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829189620] [2019-11-19 23:43:06,852 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:43:06,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:43:06,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:43:06,890 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:43:06,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:43:06,892 INFO L82 PathProgramCache]: Analyzing trace with hash -1897033802, now seen corresponding path program 1 times [2019-11-19 23:43:06,892 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:43:06,893 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196673884] [2019-11-19 23:43:06,893 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:43:06,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:43:06,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:43:07,012 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:43:07,267 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2019-11-19 23:43:07,395 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2019-11-19 23:43:38,765 WARN L191 SmtUtils]: Spent 31.36 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-11-19 23:43:55,236 WARN L191 SmtUtils]: Spent 16.46 s on a formula simplification that was a NOOP. DAG size: 402 [2019-11-19 23:43:55,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 11:43:55 BoogieIcfgContainer [2019-11-19 23:43:55,317 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-19 23:43:55,318 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 23:43:55,318 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 23:43:55,318 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 23:43:55,319 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:43:03" (3/4) ... [2019-11-19 23:43:55,322 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-19 23:43:55,393 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_19507f4c-9ec4-4d89-9e71-f1ef853895b9/bin/uautomizer/witness.graphml [2019-11-19 23:43:55,393 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 23:43:55,395 INFO L168 Benchmark]: Toolchain (without parser) took 54008.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 208.1 MB). Free memory was 944.7 MB in the beginning and 977.0 MB in the end (delta: -32.3 MB). Peak memory consumption was 175.8 MB. Max. memory is 11.5 GB. [2019-11-19 23:43:55,396 INFO L168 Benchmark]: CDTParser took 0.36 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. [2019-11-19 23:43:55,396 INFO L168 Benchmark]: CACSL2BoogieTranslator took 763.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -186.8 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-11-19 23:43:55,397 INFO L168 Benchmark]: Boogie Procedure Inliner took 129.45 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. [2019-11-19 23:43:55,397 INFO L168 Benchmark]: Boogie Preprocessor took 100.94 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-19 23:43:55,398 INFO L168 Benchmark]: RCFGBuilder took 1480.37 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. [2019-11-19 23:43:55,399 INFO L168 Benchmark]: BuchiAutomizer took 51453.66 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 59.2 MB). Free memory was 1.0 GB in the beginning and 987.3 MB in the end (delta: 41.2 MB). Peak memory consumption was 206.9 MB. Max. memory is 11.5 GB. [2019-11-19 23:43:55,399 INFO L168 Benchmark]: Witness Printer took 75.68 ms. Allocated memory is still 1.2 GB. Free memory was 987.3 MB in the beginning and 977.0 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 11.5 GB. [2019-11-19 23:43:55,402 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 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 763.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -186.8 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 129.45 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 100.94 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1480.37 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 51453.66 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 59.2 MB). Free memory was 1.0 GB in the beginning and 987.3 MB in the end (delta: 41.2 MB). Peak memory consumption was 206.9 MB. Max. memory is 11.5 GB. * Witness Printer took 75.68 ms. Allocated memory is still 1.2 GB. Free memory was 987.3 MB in the beginning and 977.0 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 446 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 51.3s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 49.8s. Construction of modules took 0.6s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 632 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 446 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1046 SDtfs, 2438 SDslu, 1361 SDs, 0 SdLazy, 237 SolverSat, 70 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time LassoAnalysisResults: nont1 unkn0 SFLI2 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: 54]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=8038} State at position 1 is {NULL=0, NULL=0, NULL=8041, NULL=8047, NULL=8038, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@388b07c5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@40688ec9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@26f8b09c=65, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@161d3d83=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e11ff19=0, retValue_acc=1, NULL=8043, methaneLevelCritical=0, NULL=0, retValue_acc=0, NULL=8051, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@52c6457f=0, tmp___1=0, NULL=8055, NULL=8063, cleanupTimeShifts=4, tmp=0, NULL=8057, tmp=1, waterLevel=1, NULL=0, NULL=8062, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@50c0e1bb=0, NULL=0, tmp___0=0, NULL=8054, \result=1, head=0, pumpRunning=0, NULL=8048, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@49079002=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@51d2a397=0, NULL=0, NULL=0, \result=1, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7bb7d75e=0, tmp=1, NULL=8058, retValue_acc=1, NULL=8042, tmp=0, head=0, NULL=0, NULL=8040, NULL=8052, tmp=0, NULL=8049, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=8056, tmp=0, NULL=8060, switchedOnBeforeTS=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@40bebc=0, \result=0, NULL=0, systemActive=1, NULL=8059, \result=1, NULL=0, NULL=0, NULL=8050, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=8039, \result=0, tmp___0=0, NULL=8061, NULL=0, NULL=0, NULL=8046, NULL=8044, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@41a26f24=0, tmp___2=65, splverifierCounter=0, NULL=0, retValue_acc=0, NULL=0, NULL=0, NULL=8053, NULL=0, NULL=8045} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L118] int pumpRunning = 0; [L119] int systemActive = 1; [L364] int waterLevel = 1; [L365] int methaneLevelCritical = 0; [L636] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L834] int switchedOnBeforeTS ; [L930] int cleanupTimeShifts = 4; [L1004] int retValue_acc ; [L1005] int tmp ; [L912] int retValue_acc ; [L915] retValue_acc = 1 [L916] return (retValue_acc); [L1011] tmp = valid_product() [L1013] COND TRUE \read(tmp) [L839] switchedOnBeforeTS = 0 [L45] int splverifierCounter ; [L46] int tmp ; [L47] int tmp___0 ; [L48] int tmp___1 ; [L49] int tmp___2 ; [L52] splverifierCounter = 0 Loop: [L54] COND TRUE 1 [L56] COND TRUE splverifierCounter < 4 [L62] tmp = __VERIFIER_nondet_int() [L64] COND FALSE !(\read(tmp)) [L72] tmp___0 = __VERIFIER_nondet_int() [L74] COND FALSE !(\read(tmp___0)) [L82] tmp___2 = __VERIFIER_nondet_int() [L84] COND TRUE \read(tmp___2) [L280] int retValue_acc ; [L283] retValue_acc = pumpRunning [L284] return (retValue_acc); [L848] switchedOnBeforeTS = isPumpRunning() [L130] COND FALSE !(\read(pumpRunning)) [L137] COND TRUE \read(systemActive) [L211] int tmp ; [L214] COND FALSE !(\read(pumpRunning)) [L185] int tmp ; [L188] COND FALSE !(\read(pumpRunning)) [L159] int tmp ; [L162] COND TRUE ! pumpRunning [L325] int retValue_acc ; [L326] int tmp ; [L327] int tmp___0 ; [L444] int retValue_acc ; [L447] COND TRUE waterLevel < 2 [L448] retValue_acc = 1 [L449] return (retValue_acc); [L331] tmp = isHighWaterSensorDry() [L333] COND TRUE \read(tmp) [L334] tmp___0 = 0 [L338] retValue_acc = tmp___0 [L339] return (retValue_acc); [L164] tmp = isHighWaterLevel() [L166] COND FALSE !(\read(tmp)) [L854] int tmp ; [L855] int tmp___0 ; [L435] int retValue_acc ; [L438] retValue_acc = waterLevel [L439] return (retValue_acc); [L859] tmp = getWaterLevel() [L861] COND TRUE tmp != 2 [L280] int retValue_acc ; [L283] retValue_acc = pumpRunning [L284] return (retValue_acc); [L863] tmp___0 = isPumpRunning() [L865] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...