./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product48.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_c9aab8d8-ac77-46a7-9276-bebfee0f667e/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c9aab8d8-ac77-46a7-9276-bebfee0f667e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c9aab8d8-ac77-46a7-9276-bebfee0f667e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c9aab8d8-ac77-46a7-9276-bebfee0f667e/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product48.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_c9aab8d8-ac77-46a7-9276-bebfee0f667e/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c9aab8d8-ac77-46a7-9276-bebfee0f667e/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 a22d1d84f43657cc690c98e940f1a10486e8ef5e ............................................................................................................................................................................................................................................................................................................................................................................................................................................. 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-cad4683 [2019-10-22 09:03:00,203 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:03:00,205 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:03:00,214 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:03:00,215 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:03:00,216 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:03:00,217 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:03:00,219 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:03:00,221 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:03:00,223 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:03:00,226 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:03:00,226 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:03:00,231 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:03:00,234 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:03:00,234 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:03:00,235 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:03:00,236 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:03:00,236 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:03:00,237 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:03:00,238 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:03:00,242 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:03:00,243 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:03:00,244 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:03:00,244 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:03:00,246 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:03:00,246 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:03:00,246 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:03:00,247 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:03:00,247 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:03:00,251 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:03:00,251 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:03:00,252 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:03:00,252 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:03:00,253 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:03:00,253 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:03:00,255 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:03:00,256 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:03:00,256 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:03:00,256 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:03:00,257 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:03:00,257 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:03:00,258 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c9aab8d8-ac77-46a7-9276-bebfee0f667e/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-10-22 09:03:00,272 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:03:00,279 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:03:00,280 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:03:00,281 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:03:00,281 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:03:00,281 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 09:03:00,281 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 09:03:00,281 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 09:03:00,283 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 09:03:00,283 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 09:03:00,284 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 09:03:00,284 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:03:00,284 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:03:00,284 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 09:03:00,284 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:03:00,284 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:03:00,285 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:03:00,285 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 09:03:00,285 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 09:03:00,285 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 09:03:00,285 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:03:00,286 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:03:00,286 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 09:03:00,286 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:03:00,286 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 09:03:00,287 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:03:00,287 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:03:00,287 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 09:03:00,287 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:03:00,287 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:03:00,287 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 09:03:00,288 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 09:03:00,288 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/working_dir_c9aab8d8-ac77-46a7-9276-bebfee0f667e/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 -> a22d1d84f43657cc690c98e940f1a10486e8ef5e [2019-10-22 09:03:00,321 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:03:00,332 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:03:00,336 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:03:00,337 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:03:00,338 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:03:00,338 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c9aab8d8-ac77-46a7-9276-bebfee0f667e/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product48.cil.c [2019-10-22 09:03:00,391 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c9aab8d8-ac77-46a7-9276-bebfee0f667e/bin/uautomizer/data/736c06e4e/970d7b024e964d6ca98e54cc0977f29b/FLAG9192ff01f [2019-10-22 09:03:00,811 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:03:00,811 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c9aab8d8-ac77-46a7-9276-bebfee0f667e/sv-benchmarks/c/product-lines/minepump_spec2_product48.cil.c [2019-10-22 09:03:00,822 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c9aab8d8-ac77-46a7-9276-bebfee0f667e/bin/uautomizer/data/736c06e4e/970d7b024e964d6ca98e54cc0977f29b/FLAG9192ff01f [2019-10-22 09:03:01,176 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c9aab8d8-ac77-46a7-9276-bebfee0f667e/bin/uautomizer/data/736c06e4e/970d7b024e964d6ca98e54cc0977f29b [2019-10-22 09:03:01,178 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:03:01,179 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:03:01,180 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:03:01,180 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:03:01,183 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:03:01,184 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:03:01" (1/1) ... [2019-10-22 09:03:01,186 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bdde358 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:01, skipping insertion in model container [2019-10-22 09:03:01,186 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:03:01" (1/1) ... [2019-10-22 09:03:01,193 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:03:01,247 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:03:01,567 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:03:01,578 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:03:01,637 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:03:01,667 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:03:01,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:01 WrapperNode [2019-10-22 09:03:01,667 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:03:01,668 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:03:01,668 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:03:01,668 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:03:01,674 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:01" (1/1) ... [2019-10-22 09:03:01,690 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:01" (1/1) ... [2019-10-22 09:03:01,734 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:03:01,738 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:03:01,738 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:03:01,738 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:03:01,751 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:01" (1/1) ... [2019-10-22 09:03:01,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:01" (1/1) ... [2019-10-22 09:03:01,755 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:01" (1/1) ... [2019-10-22 09:03:01,757 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:01" (1/1) ... [2019-10-22 09:03:01,778 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:01" (1/1) ... [2019-10-22 09:03:01,792 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:01" (1/1) ... [2019-10-22 09:03:01,794 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:01" (1/1) ... [2019-10-22 09:03:01,799 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:03:01,800 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:03:01,800 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:03:01,800 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:03:01,801 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c9aab8d8-ac77-46a7-9276-bebfee0f667e/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 [2019-10-22 09:03:01,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 09:03:01,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 09:03:01,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:03:01,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:03:02,634 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:03:02,635 INFO L284 CfgBuilder]: Removed 200 assume(true) statements. [2019-10-22 09:03:02,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:03:02 BoogieIcfgContainer [2019-10-22 09:03:02,636 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:03:02,637 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 09:03:02,638 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 09:03:02,641 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 09:03:02,641 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:03:02,641 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 09:03:01" (1/3) ... [2019-10-22 09:03:02,642 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6cf1b0d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 09:03:02, skipping insertion in model container [2019-10-22 09:03:02,643 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:03:02,643 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:01" (2/3) ... [2019-10-22 09:03:02,643 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6cf1b0d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 09:03:02, skipping insertion in model container [2019-10-22 09:03:02,643 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:03:02,643 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:03:02" (3/3) ... [2019-10-22 09:03:02,646 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product48.cil.c [2019-10-22 09:03:02,692 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 09:03:02,692 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 09:03:02,692 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 09:03:02,692 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:03:02,692 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:03:02,692 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 09:03:02,693 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:03:02,693 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 09:03:02,713 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 132 states. [2019-10-22 09:03:02,742 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 85 [2019-10-22 09:03:02,743 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:03:02,743 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:03:02,751 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:03:02,751 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:03:02,751 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 09:03:02,751 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 132 states. [2019-10-22 09:03:02,758 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 85 [2019-10-22 09:03:02,759 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:03:02,759 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:03:02,759 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:03:02,760 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:03:02,766 INFO L791 eck$LassoCheckResult]: Stem: 109#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(13);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string26.base, #t~string26.offset, 1);call write~init~int(80, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(117, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(109, #t~string26.base, 3 + #t~string26.offset, 1);call write~init~int(112, #t~string26.base, 4 + #t~string26.offset, 1);call write~init~int(58, #t~string26.base, 5 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 6 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(110, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 3 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string32.base, #t~string32.offset, 1);call write~init~int(32, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string34.base, #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 1 + #t~string34.offset, 1);~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0;call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);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~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);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);~cleanupTimeShifts~0 := 4; 8#L-1true havoc main_#res;havoc main_#t~ret73, main_~retValue_acc~11, main_~tmp~9;havoc main_~retValue_acc~11;havoc main_~tmp~9; 39#L166true havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 74#L174true main_#t~ret73 := valid_product_#res;main_~tmp~9 := main_#t~ret73;havoc main_#t~ret73; 18#L973true assume 0 != main_~tmp~9; 126#L949true ~methAndRunningLastTime~0 := 0; 80#L482true havoc test_#t~nondet11, test_#t~nondet12, test_#t~nondet13, test_#t~nondet14, 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; 82#L493-1true [2019-10-22 09:03:02,766 INFO L793 eck$LassoCheckResult]: Loop: 82#L493-1true assume !false; 28#L194true assume test_~splverifierCounter~0 < 4; 123#L195true test_~tmp~0 := test_#t~nondet11;havoc test_#t~nondet11; 129#L203true assume !(0 != test_~tmp~0); 127#L203-1true test_~tmp___0~0 := test_#t~nondet12;havoc test_#t~nondet12; 49#L213true assume !(0 != test_~tmp___0~0); 21#L213-1true test_~tmp___2~0 := test_#t~nondet13;havoc test_#t~nondet13; 107#L223true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 100#L231-1true assume !(0 != ~pumpRunning~0); 105#L264true assume !(0 != ~systemActive~0); 16#L271true havoc __utac_acc__Specification2_spec__2_#t~ret36, __utac_acc__Specification2_spec__2_#t~ret37, __utac_acc__Specification2_spec__2_~tmp~5, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~5;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 131#L90-3true __utac_acc__Specification2_spec__2_#t~ret36 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~5 := __utac_acc__Specification2_spec__2_#t~ret36;havoc __utac_acc__Specification2_spec__2_#t~ret36; 78#L493true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5);~methAndRunningLastTime~0 := 0; 82#L493-1true [2019-10-22 09:03:02,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:03:02,777 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-10-22 09:03:02,784 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:03:02,784 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38674488] [2019-10-22 09:03:02,785 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:02,785 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:02,785 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:03:03,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:03:03,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:03:03,484 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:03:03,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:03:03,485 INFO L82 PathProgramCache]: Analyzing trace with hash 14512660, now seen corresponding path program 1 times [2019-10-22 09:03:03,486 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:03:03,486 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148099050] [2019-10-22 09:03:03,486 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:03,486 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:03,487 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:03:03,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:03,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:03:03,540 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148099050] [2019-10-22 09:03:03,540 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:03:03,541 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:03:03,541 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638122478] [2019-10-22 09:03:03,546 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-10-22 09:03:03,548 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:03:03,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:03:03,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:03:03,565 INFO L87 Difference]: Start difference. First operand 132 states. Second operand 3 states. [2019-10-22 09:03:03,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:03:03,647 INFO L93 Difference]: Finished difference Result 257 states and 373 transitions. [2019-10-22 09:03:03,651 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:03:03,653 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 257 states and 373 transitions. [2019-10-22 09:03:03,663 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 166 [2019-10-22 09:03:03,673 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 257 states to 243 states and 358 transitions. [2019-10-22 09:03:03,674 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 243 [2019-10-22 09:03:03,675 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 243 [2019-10-22 09:03:03,676 INFO L73 IsDeterministic]: Start isDeterministic. Operand 243 states and 358 transitions. [2019-10-22 09:03:03,678 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 09:03:03,678 INFO L688 BuchiCegarLoop]: Abstraction has 243 states and 358 transitions. [2019-10-22 09:03:03,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states and 358 transitions. [2019-10-22 09:03:03,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 241. [2019-10-22 09:03:03,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2019-10-22 09:03:03,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 355 transitions. [2019-10-22 09:03:03,725 INFO L711 BuchiCegarLoop]: Abstraction has 241 states and 355 transitions. [2019-10-22 09:03:03,725 INFO L591 BuchiCegarLoop]: Abstraction has 241 states and 355 transitions. [2019-10-22 09:03:03,725 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 09:03:03,725 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 241 states and 355 transitions. [2019-10-22 09:03:03,728 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 164 [2019-10-22 09:03:03,732 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:03:03,732 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:03:03,733 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:03:03,733 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:03:03,733 INFO L791 eck$LassoCheckResult]: Stem: 541#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(13);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string26.base, #t~string26.offset, 1);call write~init~int(80, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(117, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(109, #t~string26.base, 3 + #t~string26.offset, 1);call write~init~int(112, #t~string26.base, 4 + #t~string26.offset, 1);call write~init~int(58, #t~string26.base, 5 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 6 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(110, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 3 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string32.base, #t~string32.offset, 1);call write~init~int(32, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string34.base, #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 1 + #t~string34.offset, 1);~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0;call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);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~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);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);~cleanupTimeShifts~0 := 4; 411#L-1 havoc main_#res;havoc main_#t~ret73, main_~retValue_acc~11, main_~tmp~9;havoc main_~retValue_acc~11;havoc main_~tmp~9; 412#L166 havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 458#L174 main_#t~ret73 := valid_product_#res;main_~tmp~9 := main_#t~ret73;havoc main_#t~ret73; 428#L973 assume 0 != main_~tmp~9; 429#L949 ~methAndRunningLastTime~0 := 0; 514#L482 havoc test_#t~nondet11, test_#t~nondet12, test_#t~nondet13, test_#t~nondet14, 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; 416#L493-1 [2019-10-22 09:03:03,733 INFO L793 eck$LassoCheckResult]: Loop: 416#L493-1 assume !false; 560#L194 assume test_~splverifierCounter~0 < 4; 561#L195 test_~tmp~0 := test_#t~nondet11;havoc test_#t~nondet11; 580#L203 assume !(0 != test_~tmp~0); 553#L203-1 test_~tmp___0~0 := test_#t~nondet12;havoc test_#t~nondet12; 554#L213 assume !(0 != test_~tmp___0~0); 577#L213-1 test_~tmp___2~0 := test_#t~nondet13;havoc test_#t~nondet13; 538#L223 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 528#L231-1 assume !(0 != ~pumpRunning~0); 495#L264 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret16, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 535#L322 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret15, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 568#L296-1 assume !(0 == ~pumpRunning~0); 566#L271 havoc __utac_acc__Specification2_spec__2_#t~ret36, __utac_acc__Specification2_spec__2_#t~ret37, __utac_acc__Specification2_spec__2_~tmp~5, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~5;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 565#L90-3 __utac_acc__Specification2_spec__2_#t~ret36 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~5 := __utac_acc__Specification2_spec__2_#t~ret36;havoc __utac_acc__Specification2_spec__2_#t~ret36; 513#L493 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5);~methAndRunningLastTime~0 := 0; 416#L493-1 [2019-10-22 09:03:03,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:03:03,734 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-10-22 09:03:03,734 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:03:03,734 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741680423] [2019-10-22 09:03:03,734 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:03,735 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:03,735 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:03:03,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:03:04,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:03:04,091 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:03:04,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:03:04,092 INFO L82 PathProgramCache]: Analyzing trace with hash -2018522314, now seen corresponding path program 1 times [2019-10-22 09:03:04,092 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:03:04,092 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48641814] [2019-10-22 09:03:04,092 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:04,092 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:04,093 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:03:04,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:04,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:03:04,110 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48641814] [2019-10-22 09:03:04,110 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:03:04,110 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:03:04,110 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434836375] [2019-10-22 09:03:04,111 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-10-22 09:03:04,111 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:03:04,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:03:04,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:03:04,111 INFO L87 Difference]: Start difference. First operand 241 states and 355 transitions. cyclomatic complexity: 117 Second operand 3 states. [2019-10-22 09:03:04,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:03:04,233 INFO L93 Difference]: Finished difference Result 330 states and 467 transitions. [2019-10-22 09:03:04,234 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:03:04,235 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 330 states and 467 transitions. [2019-10-22 09:03:04,238 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 231 [2019-10-22 09:03:04,243 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 330 states to 330 states and 467 transitions. [2019-10-22 09:03:04,244 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 330 [2019-10-22 09:03:04,244 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 330 [2019-10-22 09:03:04,244 INFO L73 IsDeterministic]: Start isDeterministic. Operand 330 states and 467 transitions. [2019-10-22 09:03:04,246 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 09:03:04,246 INFO L688 BuchiCegarLoop]: Abstraction has 330 states and 467 transitions. [2019-10-22 09:03:04,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states and 467 transitions. [2019-10-22 09:03:04,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 330. [2019-10-22 09:03:04,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2019-10-22 09:03:04,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 467 transitions. [2019-10-22 09:03:04,308 INFO L711 BuchiCegarLoop]: Abstraction has 330 states and 467 transitions. [2019-10-22 09:03:04,308 INFO L591 BuchiCegarLoop]: Abstraction has 330 states and 467 transitions. [2019-10-22 09:03:04,309 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-10-22 09:03:04,309 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 330 states and 467 transitions. [2019-10-22 09:03:04,310 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 231 [2019-10-22 09:03:04,310 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:03:04,311 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:03:04,311 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:03:04,311 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] [2019-10-22 09:03:04,311 INFO L791 eck$LassoCheckResult]: Stem: 1110#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(13);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string26.base, #t~string26.offset, 1);call write~init~int(80, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(117, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(109, #t~string26.base, 3 + #t~string26.offset, 1);call write~init~int(112, #t~string26.base, 4 + #t~string26.offset, 1);call write~init~int(58, #t~string26.base, 5 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 6 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(110, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 3 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string32.base, #t~string32.offset, 1);call write~init~int(32, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string34.base, #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 1 + #t~string34.offset, 1);~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0;call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);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~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);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);~cleanupTimeShifts~0 := 4; 988#L-1 havoc main_#res;havoc main_#t~ret73, main_~retValue_acc~11, main_~tmp~9;havoc main_~retValue_acc~11;havoc main_~tmp~9; 989#L166 havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 1040#L174 main_#t~ret73 := valid_product_#res;main_~tmp~9 := main_#t~ret73;havoc main_#t~ret73; 1007#L973 assume 0 != main_~tmp~9; 1008#L949 ~methAndRunningLastTime~0 := 0; 1091#L482 havoc test_#t~nondet11, test_#t~nondet12, test_#t~nondet13, test_#t~nondet14, 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; 993#L493-1 [2019-10-22 09:03:04,312 INFO L793 eck$LassoCheckResult]: Loop: 993#L493-1 assume !false; 1198#L194 assume test_~splverifierCounter~0 < 4; 1121#L195 test_~tmp~0 := test_#t~nondet11;havoc test_#t~nondet11; 1122#L203 assume !(0 != test_~tmp~0); 1196#L203-1 test_~tmp___0~0 := test_#t~nondet12;havoc test_#t~nondet12; 1195#L213 assume !(0 != test_~tmp___0~0); 1193#L213-1 test_~tmp___2~0 := test_#t~nondet13;havoc test_#t~nondet13; 1192#L223 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1108#L231-1 assume !(0 != ~pumpRunning~0); 1165#L264 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret16, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 1190#L322 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret15, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 983#L296-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret35, isHighWaterLevel_~retValue_acc~7, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~7;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 984#L130-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 1081#L135-1 isHighWaterLevel_#t~ret35 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret35;havoc isHighWaterLevel_#t~ret35; 1088#L441-3 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~1 := 0; 1184#L441-5 isHighWaterLevel_~retValue_acc~7 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~7; 1011#L447-1 processEnvironment__wrappee__methaneQuery_#t~ret15 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~1 := processEnvironment__wrappee__methaneQuery_#t~ret15;havoc processEnvironment__wrappee__methaneQuery_#t~ret15; 1012#L300-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~1); 1112#L271 havoc __utac_acc__Specification2_spec__2_#t~ret36, __utac_acc__Specification2_spec__2_#t~ret37, __utac_acc__Specification2_spec__2_~tmp~5, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~5;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 1201#L90-3 __utac_acc__Specification2_spec__2_#t~ret36 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~5 := __utac_acc__Specification2_spec__2_#t~ret36;havoc __utac_acc__Specification2_spec__2_#t~ret36; 1089#L493 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5);~methAndRunningLastTime~0 := 0; 993#L493-1 [2019-10-22 09:03:04,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:03:04,313 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-10-22 09:03:04,313 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:03:04,313 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326385495] [2019-10-22 09:03:04,313 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:04,313 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:04,313 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:03:04,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:03:04,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:03:04,564 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:03:04,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:03:04,565 INFO L82 PathProgramCache]: Analyzing trace with hash 1917413410, now seen corresponding path program 1 times [2019-10-22 09:03:04,565 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:03:04,566 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404630565] [2019-10-22 09:03:04,566 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:04,567 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:04,567 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:03:04,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:03:04,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:03:04,578 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:03:04,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:03:04,579 INFO L82 PathProgramCache]: Analyzing trace with hash -604412260, now seen corresponding path program 1 times [2019-10-22 09:03:04,579 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:03:04,579 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719123501] [2019-10-22 09:03:04,579 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:04,580 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:04,580 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:03:04,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:03:04,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:03:04,839 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:03:04,950 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2019-10-22 09:03:21,723 WARN L191 SmtUtils]: Spent 16.71 s on a formula simplification. DAG size of input: 455 DAG size of output: 453 [2019-10-22 09:03:32,306 WARN L191 SmtUtils]: Spent 10.57 s on a formula simplification that was a NOOP. DAG size: 451 [2019-10-22 09:03:32,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 09:03:32 BoogieIcfgContainer [2019-10-22 09:03:32,372 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 09:03:32,372 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:03:32,372 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:03:32,372 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:03:32,373 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:03:02" (3/4) ... [2019-10-22 09:03:32,376 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-10-22 09:03:32,429 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_c9aab8d8-ac77-46a7-9276-bebfee0f667e/bin/uautomizer/witness.graphml [2019-10-22 09:03:32,429 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:03:32,430 INFO L168 Benchmark]: Toolchain (without parser) took 31251.88 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 382.2 MB). Free memory was 938.0 MB in the beginning and 1.2 GB in the end (delta: -276.3 MB). Peak memory consumption was 105.9 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:32,431 INFO L168 Benchmark]: CDTParser took 0.30 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. [2019-10-22 09:03:32,431 INFO L168 Benchmark]: CACSL2BoogieTranslator took 488.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 191.9 MB). Free memory was 938.0 MB in the beginning and 1.2 GB in the end (delta: -233.0 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:32,431 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.90 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:03:32,432 INFO L168 Benchmark]: Boogie Preprocessor took 61.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:32,432 INFO L168 Benchmark]: RCFGBuilder took 837.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 71.2 MB). Peak memory consumption was 71.2 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:32,433 INFO L168 Benchmark]: BuchiAutomizer took 29734.21 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 190.3 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -126.8 MB). Peak memory consumption was 366.4 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:32,433 INFO L168 Benchmark]: Witness Printer took 57.39 ms. Allocated memory is still 1.4 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:32,435 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 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 488.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 191.9 MB). Free memory was 938.0 MB in the beginning and 1.2 GB in the end (delta: -233.0 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 69.90 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 61.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 837.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 71.2 MB). Peak memory consumption was 71.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 29734.21 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 190.3 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -126.8 MB). Peak memory consumption was 366.4 MB. Max. memory is 11.5 GB. * Witness Printer took 57.39 ms. Allocated memory is still 1.4 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 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 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 3 locations. The remainder module has 330 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 29.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 29.1s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 330 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 357 SDtfs, 325 SDslu, 242 SDs, 0 SdLazy, 41 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 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: 193]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=0} State at position 1 is {NULL=0, retValue_acc=0, NULL=-22, NULL=0, NULL=-13, NULL=0, NULL=0, NULL=-25, methaneLevelCritical=0, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3e3175d9=0, NULL=-18, NULL=0, retValue_acc=0, tmp___1=0, NULL=-11, NULL=-15, cleanupTimeShifts=4, tmp=0, NULL=-12, NULL=0, systemActive=1, waterLevel=1, NULL=-19, NULL=0, NULL=0, NULL=-4, \result=0, tmp___0=0, NULL=-8, NULL=0, NULL=0, NULL=0, retValue_acc=0, \result=1, head=0, pumpRunning=0, NULL=-2, \result=0, NULL=-5, retValue_acc=1, NULL=0, NULL=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5d514f72=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5f0f615e=0, NULL=-23, NULL=-6, NULL=-24, tmp=1, NULL=-16, tmp___2=61, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7eebc78a=0, NULL=-9, NULL=-17, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, methAndRunningLastTime=0, \result=0, NULL=-3, NULL=-21, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@da40d22=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7f0d98e0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3208da93=61, NULL=-1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1bcc805a=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6d42122d=0, head=0, tmp=0, NULL=0, NULL=0, NULL=-10, NULL=0, tmp=1, NULL=0, NULL=-14, NULL=-20, NULL=0, tmp=0, NULL=-7, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6deb3d6a=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L256] int pumpRunning = 0; [L257] int systemActive = 1; [L476] int methAndRunningLastTime ; [L684] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L890] int cleanupTimeShifts = 4; [L964] int retValue_acc ; [L965] int tmp ; [L170] int retValue_acc ; [L173] retValue_acc = 1 [L174] return (retValue_acc); [L971] tmp = valid_product() [L973] COND TRUE \read(tmp) [L481] methAndRunningLastTime = 0 [L184] int splverifierCounter ; [L185] int tmp ; [L186] int tmp___0 ; [L187] int tmp___1 ; [L188] int tmp___2 ; [L191] splverifierCounter = 0 Loop: [L193] COND TRUE 1 [L195] COND TRUE splverifierCounter < 4 [L201] tmp = __VERIFIER_nondet_int() [L203] COND FALSE !(\read(tmp)) [L211] tmp___0 = __VERIFIER_nondet_int() [L213] COND FALSE !(\read(tmp___0)) [L221] tmp___2 = __VERIFIER_nondet_int() [L223] COND TRUE \read(tmp___2) [L470] systemActive = 1 [L264] COND FALSE !(\read(pumpRunning)) [L271] COND TRUE \read(systemActive) [L319] int tmp ; [L322] COND FALSE !(\read(pumpRunning)) [L293] int tmp ; [L296] COND TRUE ! pumpRunning [L433] int retValue_acc ; [L434] int tmp ; [L435] int tmp___0 ; [L127] int retValue_acc ; [L130] COND TRUE waterLevel < 2 [L131] retValue_acc = 1 [L132] return (retValue_acc); [L439] tmp = isHighWaterSensorDry() [L441] COND TRUE \read(tmp) [L442] tmp___0 = 0 [L446] retValue_acc = tmp___0 [L447] return (retValue_acc); [L298] tmp = isHighWaterLevel() [L300] COND FALSE !(\read(tmp)) [L486] int tmp ; [L487] int tmp___0 ; [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); [L491] tmp = isMethaneLevelCritical() [L493] COND FALSE !(\read(tmp)) [L509] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...