./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product49.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_0ebb01df-26ce-41fc-8b91-ff234e5fa362/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0ebb01df-26ce-41fc-8b91-ff234e5fa362/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0ebb01df-26ce-41fc-8b91-ff234e5fa362/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0ebb01df-26ce-41fc-8b91-ff234e5fa362/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product49.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_0ebb01df-26ce-41fc-8b91-ff234e5fa362/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0ebb01df-26ce-41fc-8b91-ff234e5fa362/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 4b859e272d72137c2ddb07ede97bfa3dea2dc5e9 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 09:01:12,083 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:01:12,084 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:01:12,094 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:01:12,095 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:01:12,096 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:01:12,097 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:01:12,099 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:01:12,101 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:01:12,104 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:01:12,106 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:01:12,107 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:01:12,112 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:01:12,114 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:01:12,115 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:01:12,116 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:01:12,116 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:01:12,117 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:01:12,118 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:01:12,122 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:01:12,125 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:01:12,128 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:01:12,129 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:01:12,131 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:01:12,132 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:01:12,132 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:01:12,133 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:01:12,133 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:01:12,133 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:01:12,134 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:01:12,134 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:01:12,135 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:01:12,135 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:01:12,136 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:01:12,139 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:01:12,139 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:01:12,140 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:01:12,141 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:01:12,141 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:01:12,142 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:01:12,144 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:01:12,144 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0ebb01df-26ce-41fc-8b91-ff234e5fa362/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-10-22 09:01:12,166 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:01:12,166 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:01:12,167 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:01:12,167 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:01:12,167 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:01:12,168 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 09:01:12,168 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 09:01:12,168 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 09:01:12,168 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 09:01:12,168 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 09:01:12,169 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 09:01:12,170 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:01:12,170 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:01:12,170 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 09:01:12,170 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:01:12,170 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:01:12,171 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:01:12,171 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 09:01:12,171 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 09:01:12,171 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 09:01:12,171 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:01:12,171 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:01:12,172 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 09:01:12,172 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:01:12,172 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 09:01:12,172 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:01:12,173 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:01:12,173 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 09:01:12,173 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:01:12,173 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:01:12,173 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 09:01:12,174 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 09:01:12,174 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_0ebb01df-26ce-41fc-8b91-ff234e5fa362/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 -> 4b859e272d72137c2ddb07ede97bfa3dea2dc5e9 [2019-10-22 09:01:12,207 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:01:12,219 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:01:12,222 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:01:12,223 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:01:12,224 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:01:12,224 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0ebb01df-26ce-41fc-8b91-ff234e5fa362/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product49.cil.c [2019-10-22 09:01:12,275 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0ebb01df-26ce-41fc-8b91-ff234e5fa362/bin/uautomizer/data/6a5a3687e/89b3f715bfca447cbf9d573b1e2cff1a/FLAG80fa07aa6 [2019-10-22 09:01:12,711 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:01:12,712 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0ebb01df-26ce-41fc-8b91-ff234e5fa362/sv-benchmarks/c/product-lines/minepump_spec2_product49.cil.c [2019-10-22 09:01:12,726 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0ebb01df-26ce-41fc-8b91-ff234e5fa362/bin/uautomizer/data/6a5a3687e/89b3f715bfca447cbf9d573b1e2cff1a/FLAG80fa07aa6 [2019-10-22 09:01:12,740 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0ebb01df-26ce-41fc-8b91-ff234e5fa362/bin/uautomizer/data/6a5a3687e/89b3f715bfca447cbf9d573b1e2cff1a [2019-10-22 09:01:12,746 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:01:12,748 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:01:12,748 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:01:12,749 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:01:12,752 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:01:12,753 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:01:12" (1/1) ... [2019-10-22 09:01:12,755 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41f6e854 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:12, skipping insertion in model container [2019-10-22 09:01:12,756 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:01:12" (1/1) ... [2019-10-22 09:01:12,762 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:01:12,805 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:01:13,124 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:01:13,147 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:01:13,252 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:01:13,279 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:01:13,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:13 WrapperNode [2019-10-22 09:01:13,279 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:01:13,280 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:01:13,280 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:01:13,280 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:01:13,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:13" (1/1) ... [2019-10-22 09:01:13,303 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:13" (1/1) ... [2019-10-22 09:01:13,337 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:01:13,337 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:01:13,338 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:01:13,338 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:01:13,347 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:13" (1/1) ... [2019-10-22 09:01:13,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:13" (1/1) ... [2019-10-22 09:01:13,353 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:13" (1/1) ... [2019-10-22 09:01:13,353 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:13" (1/1) ... [2019-10-22 09:01:13,373 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:13" (1/1) ... [2019-10-22 09:01:13,385 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:13" (1/1) ... [2019-10-22 09:01:13,387 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:13" (1/1) ... [2019-10-22 09:01:13,403 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:01:13,405 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:01:13,406 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:01:13,406 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:01:13,407 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0ebb01df-26ce-41fc-8b91-ff234e5fa362/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 09:01:13,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 09:01:13,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 09:01:13,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:01:13,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:01:14,334 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:01:14,334 INFO L284 CfgBuilder]: Removed 158 assume(true) statements. [2019-10-22 09:01:14,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:14 BoogieIcfgContainer [2019-10-22 09:01:14,336 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:01:14,336 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 09:01:14,336 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 09:01:14,357 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 09:01:14,358 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:01:14,358 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 09:01:12" (1/3) ... [2019-10-22 09:01:14,359 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3f4b5335 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 09:01:14, skipping insertion in model container [2019-10-22 09:01:14,359 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:01:14,359 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:13" (2/3) ... [2019-10-22 09:01:14,360 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3f4b5335 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 09:01:14, skipping insertion in model container [2019-10-22 09:01:14,360 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:01:14,360 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:14" (3/3) ... [2019-10-22 09:01:14,362 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product49.cil.c [2019-10-22 09:01:14,409 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 09:01:14,409 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 09:01:14,409 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 09:01:14,409 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:01:14,409 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:01:14,409 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 09:01:14,410 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:01:14,410 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 09:01:14,426 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 118 states. [2019-10-22 09:01:14,451 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2019-10-22 09:01:14,451 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:01:14,451 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:01:14,460 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:01:14,460 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:01:14,460 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 09:01:14,461 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 118 states. [2019-10-22 09:01:14,467 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2019-10-22 09:01:14,467 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:01:14,467 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:01:14,467 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:01:14,467 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:01:14,473 INFO L791 eck$LassoCheckResult]: Stem: 85#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string2.base, #t~string2.offset := #Ultimate.allocOnStack(13);call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string4.base, #t~string4.offset, 1);call write~init~int(77, #t~string4.base, 1 + #t~string4.offset, 1);call write~init~int(101, #t~string4.base, 2 + #t~string4.offset, 1);call write~init~int(116, #t~string4.base, 3 + #t~string4.offset, 1);call write~init~int(104, #t~string4.base, 4 + #t~string4.offset, 1);call write~init~int(58, #t~string4.base, 5 + #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 6 + #t~string4.offset, 1);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string6.base, #t~string6.offset, 1);call write~init~int(82, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(73, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(84, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 4 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(75, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string10.base, #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 1 + #t~string10.offset, 1);~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(13);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string27.base, #t~string27.offset, 1);call write~init~int(80, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(117, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(109, #t~string27.base, 3 + #t~string27.offset, 1);call write~init~int(112, #t~string27.base, 4 + #t~string27.offset, 1);call write~init~int(58, #t~string27.base, 5 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 6 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(110, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 3 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string33.base, #t~string33.offset, 1);call write~init~int(32, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string35.base, #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 1 + #t~string35.offset, 1);~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); 13#L-1true havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 118#L957true havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 23#L965true main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 89#L132true assume 0 != main_~tmp~0; 30#L103true ~methAndRunningLastTime~0 := 0; 7#L263true havoc test_#t~nondet13, test_#t~nondet14, test_#t~nondet15, test_#t~nondet16, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 6#L274-1true [2019-10-22 09:01:14,473 INFO L793 eck$LassoCheckResult]: Loop: 6#L274-1true assume !false; 15#L307true assume test_~splverifierCounter~0 < 4; 84#L308true test_~tmp~2 := test_#t~nondet13;havoc test_#t~nondet13; 99#L316true assume !(0 != test_~tmp~2); 101#L316-1true test_~tmp___0~1 := test_#t~nondet14;havoc test_#t~nondet14; 45#L326true assume !(0 != test_~tmp___0~1); 48#L326-1true test_~tmp___2~0 := test_#t~nondet15;havoc test_#t~nondet15; 76#L336true assume 0 != test_~tmp___2~0; 51#L342-2true assume !(0 != ~pumpRunning~0); 43#L370true assume !(0 != ~systemActive~0); 79#L377true havoc __utac_acc__Specification2_spec__2_#t~ret11, __utac_acc__Specification2_spec__2_#t~ret12, __utac_acc__Specification2_spec__2_~tmp~1, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~1;havoc isMethaneLevelCritical_~retValue_acc~1;isMethaneLevelCritical_~retValue_acc~1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~1; 103#L195true __utac_acc__Specification2_spec__2_#t~ret11 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~1 := __utac_acc__Specification2_spec__2_#t~ret11;havoc __utac_acc__Specification2_spec__2_#t~ret11; 9#L274true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1);~methAndRunningLastTime~0 := 0; 6#L274-1true [2019-10-22 09:01:14,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:14,478 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-10-22 09:01:14,484 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:14,485 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078483942] [2019-10-22 09:01:14,485 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:14,485 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:14,485 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:14,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:15,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:15,196 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:01:15,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:15,200 INFO L82 PathProgramCache]: Analyzing trace with hash 4507850, now seen corresponding path program 1 times [2019-10-22 09:01:15,200 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:15,201 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963640947] [2019-10-22 09:01:15,201 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:15,201 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:15,202 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:15,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:15,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:15,221 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:01:15,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:15,227 INFO L82 PathProgramCache]: Analyzing trace with hash 837804356, now seen corresponding path program 1 times [2019-10-22 09:01:15,228 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:15,229 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441587090] [2019-10-22 09:01:15,230 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:15,230 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:15,230 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:15,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:15,402 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 09:01:15,402 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441587090] [2019-10-22 09:01:15,403 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:15,403 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 09:01:15,403 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022652328] [2019-10-22 09:01:15,523 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:15,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 09:01:15,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-22 09:01:15,539 INFO L87 Difference]: Start difference. First operand 118 states. Second operand 6 states. [2019-10-22 09:01:15,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:15,695 INFO L93 Difference]: Finished difference Result 118 states and 170 transitions. [2019-10-22 09:01:15,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 09:01:15,698 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 118 states and 170 transitions. [2019-10-22 09:01:15,703 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2019-10-22 09:01:15,709 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 118 states to 111 states and 163 transitions. [2019-10-22 09:01:15,710 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 111 [2019-10-22 09:01:15,711 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 111 [2019-10-22 09:01:15,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 111 states and 163 transitions. [2019-10-22 09:01:15,713 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 09:01:15,713 INFO L688 BuchiCegarLoop]: Abstraction has 111 states and 163 transitions. [2019-10-22 09:01:15,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states and 163 transitions. [2019-10-22 09:01:15,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2019-10-22 09:01:15,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2019-10-22 09:01:15,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 163 transitions. [2019-10-22 09:01:15,753 INFO L711 BuchiCegarLoop]: Abstraction has 111 states and 163 transitions. [2019-10-22 09:01:15,753 INFO L591 BuchiCegarLoop]: Abstraction has 111 states and 163 transitions. [2019-10-22 09:01:15,754 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 09:01:15,754 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 111 states and 163 transitions. [2019-10-22 09:01:15,756 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2019-10-22 09:01:15,756 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:01:15,756 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:01:15,757 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:01:15,758 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:01:15,758 INFO L791 eck$LassoCheckResult]: Stem: 355#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string2.base, #t~string2.offset := #Ultimate.allocOnStack(13);call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string4.base, #t~string4.offset, 1);call write~init~int(77, #t~string4.base, 1 + #t~string4.offset, 1);call write~init~int(101, #t~string4.base, 2 + #t~string4.offset, 1);call write~init~int(116, #t~string4.base, 3 + #t~string4.offset, 1);call write~init~int(104, #t~string4.base, 4 + #t~string4.offset, 1);call write~init~int(58, #t~string4.base, 5 + #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 6 + #t~string4.offset, 1);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string6.base, #t~string6.offset, 1);call write~init~int(82, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(73, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(84, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 4 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(75, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string10.base, #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 1 + #t~string10.offset, 1);~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(13);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string27.base, #t~string27.offset, 1);call write~init~int(80, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(117, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(109, #t~string27.base, 3 + #t~string27.offset, 1);call write~init~int(112, #t~string27.base, 4 + #t~string27.offset, 1);call write~init~int(58, #t~string27.base, 5 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 6 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(110, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 3 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string33.base, #t~string33.offset, 1);call write~init~int(32, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string35.base, #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 1 + #t~string35.offset, 1);~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); 272#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 273#L957 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 288#L965 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 289#L132 assume 0 != main_~tmp~0; 300#L103 ~methAndRunningLastTime~0 := 0; 262#L263 havoc test_#t~nondet13, test_#t~nondet14, test_#t~nondet15, test_#t~nondet16, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 260#L274-1 [2019-10-22 09:01:15,758 INFO L793 eck$LassoCheckResult]: Loop: 260#L274-1 assume !false; 261#L307 assume test_~splverifierCounter~0 < 4; 276#L308 test_~tmp~2 := test_#t~nondet13;havoc test_#t~nondet13; 354#L316 assume !(0 != test_~tmp~2); 360#L316-1 test_~tmp___0~1 := test_#t~nondet14;havoc test_#t~nondet14; 324#L326 assume !(0 != test_~tmp___0~1); 326#L326-1 test_~tmp___2~0 := test_#t~nondet15;havoc test_#t~nondet15; 329#L336 assume 0 != test_~tmp___2~0; 331#L342-2 assume !(0 != ~pumpRunning~0); 315#L370 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret18, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 301#L428 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret17, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; 303#L402-1 assume !(0 == ~pumpRunning~0); 307#L377 havoc __utac_acc__Specification2_spec__2_#t~ret11, __utac_acc__Specification2_spec__2_#t~ret12, __utac_acc__Specification2_spec__2_~tmp~1, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~1;havoc isMethaneLevelCritical_~retValue_acc~1;isMethaneLevelCritical_~retValue_acc~1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~1; 350#L195 __utac_acc__Specification2_spec__2_#t~ret11 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~1 := __utac_acc__Specification2_spec__2_#t~ret11;havoc __utac_acc__Specification2_spec__2_#t~ret11; 265#L274 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1);~methAndRunningLastTime~0 := 0; 260#L274-1 [2019-10-22 09:01:15,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:15,759 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-10-22 09:01:15,759 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:15,759 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117363953] [2019-10-22 09:01:15,759 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:15,760 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:15,760 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:15,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:16,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:16,091 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:01:16,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:16,092 INFO L82 PathProgramCache]: Analyzing trace with hash 1691352360, now seen corresponding path program 1 times [2019-10-22 09:01:16,092 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:16,092 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511208752] [2019-10-22 09:01:16,093 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:16,093 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:16,093 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:16,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:16,108 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 09:01:16,108 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511208752] [2019-10-22 09:01:16,108 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:16,109 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:01:16,109 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763080463] [2019-10-22 09:01:16,109 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-10-22 09:01:16,109 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:16,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:01:16,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:01:16,110 INFO L87 Difference]: Start difference. First operand 111 states and 163 transitions. cyclomatic complexity: 54 Second operand 3 states. [2019-10-22 09:01:16,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:16,245 INFO L93 Difference]: Finished difference Result 155 states and 217 transitions. [2019-10-22 09:01:16,246 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:01:16,246 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 155 states and 217 transitions. [2019-10-22 09:01:16,249 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2019-10-22 09:01:16,256 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 155 states to 155 states and 217 transitions. [2019-10-22 09:01:16,257 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 155 [2019-10-22 09:01:16,257 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 155 [2019-10-22 09:01:16,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 155 states and 217 transitions. [2019-10-22 09:01:16,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 09:01:16,258 INFO L688 BuchiCegarLoop]: Abstraction has 155 states and 217 transitions. [2019-10-22 09:01:16,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states and 217 transitions. [2019-10-22 09:01:16,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2019-10-22 09:01:16,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2019-10-22 09:01:16,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 217 transitions. [2019-10-22 09:01:16,265 INFO L711 BuchiCegarLoop]: Abstraction has 155 states and 217 transitions. [2019-10-22 09:01:16,265 INFO L591 BuchiCegarLoop]: Abstraction has 155 states and 217 transitions. [2019-10-22 09:01:16,265 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-10-22 09:01:16,265 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 155 states and 217 transitions. [2019-10-22 09:01:16,266 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2019-10-22 09:01:16,267 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:01:16,267 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:01:16,267 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:01:16,267 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 09:01:16,268 INFO L791 eck$LassoCheckResult]: Stem: 630#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string2.base, #t~string2.offset := #Ultimate.allocOnStack(13);call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string4.base, #t~string4.offset, 1);call write~init~int(77, #t~string4.base, 1 + #t~string4.offset, 1);call write~init~int(101, #t~string4.base, 2 + #t~string4.offset, 1);call write~init~int(116, #t~string4.base, 3 + #t~string4.offset, 1);call write~init~int(104, #t~string4.base, 4 + #t~string4.offset, 1);call write~init~int(58, #t~string4.base, 5 + #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 6 + #t~string4.offset, 1);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string6.base, #t~string6.offset, 1);call write~init~int(82, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(73, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(84, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 4 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(75, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string10.base, #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 1 + #t~string10.offset, 1);~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(13);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string27.base, #t~string27.offset, 1);call write~init~int(80, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(117, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(109, #t~string27.base, 3 + #t~string27.offset, 1);call write~init~int(112, #t~string27.base, 4 + #t~string27.offset, 1);call write~init~int(58, #t~string27.base, 5 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 6 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(110, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 3 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string33.base, #t~string33.offset, 1);call write~init~int(32, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string35.base, #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 1 + #t~string35.offset, 1);~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); 547#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 548#L957 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 562#L965 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 563#L132 assume 0 != main_~tmp~0; 574#L103 ~methAndRunningLastTime~0 := 0; 536#L263 havoc test_#t~nondet13, test_#t~nondet14, test_#t~nondet15, test_#t~nondet16, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 532#L274-1 [2019-10-22 09:01:16,268 INFO L793 eck$LassoCheckResult]: Loop: 532#L274-1 assume !false; 533#L307 assume test_~splverifierCounter~0 < 4; 549#L308 test_~tmp~2 := test_#t~nondet13;havoc test_#t~nondet13; 629#L316 assume !(0 != test_~tmp~2); 636#L316-1 test_~tmp___0~1 := test_#t~nondet14;havoc test_#t~nondet14; 598#L326 assume !(0 != test_~tmp___0~1); 600#L326-1 test_~tmp___2~0 := test_#t~nondet15;havoc test_#t~nondet15; 603#L336 assume 0 != test_~tmp___2~0; 606#L342-2 assume !(0 != ~pumpRunning~0); 595#L370 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret18, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 575#L428 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret17, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; 576#L402-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret36, isHighWaterLevel_~retValue_acc~7, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~7;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~3;havoc isHighWaterSensorDry_~retValue_acc~3; 607#L235-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~3 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~3; 608#L240-1 isHighWaterLevel_#t~ret36 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret36;havoc isHighWaterLevel_#t~ret36; 566#L530-3 assume 0 != isHighWaterLevel_~tmp~5;isHighWaterLevel_~tmp___0~2 := 0; 530#L530-5 isHighWaterLevel_~retValue_acc~7 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~7; 531#L536-1 processEnvironment__wrappee__highWaterSensor_#t~ret17 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~3 := processEnvironment__wrappee__highWaterSensor_#t~ret17;havoc processEnvironment__wrappee__highWaterSensor_#t~ret17; 587#L406-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~3); 581#L377 havoc __utac_acc__Specification2_spec__2_#t~ret11, __utac_acc__Specification2_spec__2_#t~ret12, __utac_acc__Specification2_spec__2_~tmp~1, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~1;havoc isMethaneLevelCritical_~retValue_acc~1;isMethaneLevelCritical_~retValue_acc~1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~1; 625#L195 __utac_acc__Specification2_spec__2_#t~ret11 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~1 := __utac_acc__Specification2_spec__2_#t~ret11;havoc __utac_acc__Specification2_spec__2_#t~ret11; 537#L274 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1);~methAndRunningLastTime~0 := 0; 532#L274-1 [2019-10-22 09:01:16,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:16,268 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-10-22 09:01:16,269 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:16,269 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086634653] [2019-10-22 09:01:16,269 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:16,269 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:16,270 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:16,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:16,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:16,523 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:01:16,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:16,528 INFO L82 PathProgramCache]: Analyzing trace with hash -1940252844, now seen corresponding path program 1 times [2019-10-22 09:01:16,528 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:16,528 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421937878] [2019-10-22 09:01:16,529 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:16,529 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:16,529 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:16,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:16,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:16,544 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:01:16,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:16,554 INFO L82 PathProgramCache]: Analyzing trace with hash -167111218, now seen corresponding path program 1 times [2019-10-22 09:01:16,555 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:16,555 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622889694] [2019-10-22 09:01:16,555 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:16,555 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:16,555 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:16,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:16,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:16,813 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:01:16,936 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 51 [2019-10-22 09:01:34,626 WARN L191 SmtUtils]: Spent 17.62 s on a formula simplification. DAG size of input: 455 DAG size of output: 453 [2019-10-22 09:01:45,024 WARN L191 SmtUtils]: Spent 10.39 s on a formula simplification that was a NOOP. DAG size: 451 [2019-10-22 09:01:45,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 09:01:45 BoogieIcfgContainer [2019-10-22 09:01:45,091 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 09:01:45,092 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:01:45,092 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:01:45,092 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:01:45,093 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:14" (3/4) ... [2019-10-22 09:01:45,096 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-10-22 09:01:45,154 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_0ebb01df-26ce-41fc-8b91-ff234e5fa362/bin/uautomizer/witness.graphml [2019-10-22 09:01:45,154 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:01:45,155 INFO L168 Benchmark]: Toolchain (without parser) took 32407.98 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 343.4 MB). Free memory was 937.8 MB in the beginning and 1.3 GB in the end (delta: -320.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:45,156 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:01:45,156 INFO L168 Benchmark]: CACSL2BoogieTranslator took 531.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 937.8 MB in the beginning and 1.1 GB in the end (delta: -200.7 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:45,156 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.40 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:01:45,157 INFO L168 Benchmark]: Boogie Preprocessor took 65.49 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:45,157 INFO L168 Benchmark]: RCFGBuilder took 932.62 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: 59.9 MB). Peak memory consumption was 59.9 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:45,158 INFO L168 Benchmark]: BuchiAutomizer took 30755.18 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 181.9 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -199.6 MB). Peak memory consumption was 374.7 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:45,158 INFO L168 Benchmark]: Witness Printer took 62.45 ms. Allocated memory is still 1.4 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:45,160 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 531.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 937.8 MB in the beginning and 1.1 GB in the end (delta: -200.7 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 57.40 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 65.49 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 932.62 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: 59.9 MB). Peak memory consumption was 59.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 30755.18 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 181.9 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -199.6 MB). Peak memory consumption was 374.7 MB. Max. memory is 11.5 GB. * Witness Printer took 62.45 ms. Allocated memory is still 1.4 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 155 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 30.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 30.1s. 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 155 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 321 SDtfs, 613 SDslu, 74 SDs, 0 SdLazy, 38 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 306]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=8348} State at position 1 is {retValue_acc=0, NULL=0, NULL=-23, retValue_acc=0, NULL=8348, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@78ff09e8=0, retValue_acc=1, NULL=-9, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3b1d41be=0, NULL=-21, tmp___0=0, tmp=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2992ba47=0, NULL=0, NULL=0, NULL=-1, NULL=0, NULL=8347, NULL=0, NULL=-7, retValue_acc=0, tmp___1=0, NULL=-12, NULL=-3, NULL=0, NULL=0, NULL=0, NULL=0, tmp=0, cleanupTimeShifts=4, NULL=-11, NULL=-2, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=8240, NULL=-4, \result=0, NULL=0, NULL=-15, NULL=0, NULL=0, NULL=0, NULL=-5, \result=1, head=0, pumpRunning=0, tmp=1, NULL=-19, \result=0, NULL=-22, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ae5f1fa=0, NULL=-18, NULL=0, NULL=0, NULL=0, NULL=-16, \result=1, tmp___0=0, NULL=-17, NULL=-8, tmp___2=56, tmp=1, tmp___0=0, splverifierCounter=0, NULL=0, methAndRunningLastTime=0, \result=0, NULL=-6, NULL=-10, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@10a046be=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1a636234=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@9ba317b=56, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d92b018=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2233e56=0, NULL=-14, head=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4d60df96=0, NULL=-20, NULL=0, tmp=0, NULL=-13} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L40] int cleanupTimeShifts = 4; [L152] int waterLevel = 1; [L153] int methaneLevelCritical = 0; [L257] int methAndRunningLastTime ; [L363] int pumpRunning = 0; [L364] int systemActive = 1; [L729] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L123] int retValue_acc ; [L124] int tmp ; [L961] int retValue_acc ; [L964] retValue_acc = 1 [L965] return (retValue_acc); [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) [L262] methAndRunningLastTime = 0 [L297] int splverifierCounter ; [L298] int tmp ; [L299] int tmp___0 ; [L300] int tmp___1 ; [L301] int tmp___2 ; [L304] splverifierCounter = 0 Loop: [L306] COND TRUE 1 [L308] COND TRUE splverifierCounter < 4 [L314] tmp = __VERIFIER_nondet_int() [L316] COND FALSE !(\read(tmp)) [L324] tmp___0 = __VERIFIER_nondet_int() [L326] COND FALSE !(\read(tmp___0)) [L334] tmp___2 = __VERIFIER_nondet_int() [L336] COND TRUE \read(tmp___2) [L370] COND FALSE !(\read(pumpRunning)) [L377] COND TRUE \read(systemActive) [L425] int tmp ; [L428] COND FALSE !(\read(pumpRunning)) [L399] int tmp ; [L402] COND TRUE ! pumpRunning [L522] int retValue_acc ; [L523] int tmp ; [L524] int tmp___0 ; [L232] int retValue_acc ; [L235] COND TRUE waterLevel < 2 [L236] retValue_acc = 1 [L237] return (retValue_acc); [L528] tmp = isHighWaterSensorDry() [L530] COND TRUE \read(tmp) [L531] tmp___0 = 0 [L535] retValue_acc = tmp___0 [L536] return (retValue_acc); [L404] tmp = isHighWaterLevel() [L406] COND FALSE !(\read(tmp)) [L267] int tmp ; [L268] int tmp___0 ; [L191] int retValue_acc ; [L194] retValue_acc = methaneLevelCritical [L195] return (retValue_acc); [L272] tmp = isMethaneLevelCritical() [L274] COND FALSE !(\read(tmp)) [L290] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...