./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product61.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_76c33b96-73fc-4c35-9e1c-29cb423b0e96/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_76c33b96-73fc-4c35-9e1c-29cb423b0e96/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_76c33b96-73fc-4c35-9e1c-29cb423b0e96/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_76c33b96-73fc-4c35-9e1c-29cb423b0e96/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product61.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_76c33b96-73fc-4c35-9e1c-29cb423b0e96/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_76c33b96-73fc-4c35-9e1c-29cb423b0e96/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8b70f1184a0eb3743d86be3e0236101e1312b9f0 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 20:49:23,069 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 20:49:23,072 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 20:49:23,089 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 20:49:23,090 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 20:49:23,092 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 20:49:23,094 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 20:49:23,105 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 20:49:23,111 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 20:49:23,113 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 20:49:23,116 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 20:49:23,118 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 20:49:23,119 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 20:49:23,122 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 20:49:23,123 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 20:49:23,125 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 20:49:23,126 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 20:49:23,128 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 20:49:23,131 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 20:49:23,135 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 20:49:23,139 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 20:49:23,141 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 20:49:23,145 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 20:49:23,146 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 20:49:23,149 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 20:49:23,149 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 20:49:23,149 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 20:49:23,151 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 20:49:23,152 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 20:49:23,153 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 20:49:23,153 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 20:49:23,154 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 20:49:23,155 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 20:49:23,155 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 20:49:23,157 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 20:49:23,158 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 20:49:23,159 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 20:49:23,159 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 20:49:23,159 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 20:49:23,160 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 20:49:23,161 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 20:49:23,163 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_76c33b96-73fc-4c35-9e1c-29cb423b0e96/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-15 20:49:23,196 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 20:49:23,209 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 20:49:23,211 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 20:49:23,211 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 20:49:23,211 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 20:49:23,212 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-15 20:49:23,212 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-15 20:49:23,212 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-15 20:49:23,213 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-15 20:49:23,213 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-15 20:49:23,213 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-15 20:49:23,214 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 20:49:23,214 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 20:49:23,214 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 20:49:23,215 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 20:49:23,215 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 20:49:23,215 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 20:49:23,216 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-15 20:49:23,216 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-15 20:49:23,216 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-15 20:49:23,216 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 20:49:23,217 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 20:49:23,217 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-15 20:49:23,217 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 20:49:23,218 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-15 20:49:23,218 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 20:49:23,218 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 20:49:23,219 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-15 20:49:23,219 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 20:49:23,219 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 20:49:23,220 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-15 20:49:23,221 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-15 20:49:23,221 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_76c33b96-73fc-4c35-9e1c-29cb423b0e96/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8b70f1184a0eb3743d86be3e0236101e1312b9f0 [2019-11-15 20:49:23,253 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 20:49:23,266 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 20:49:23,270 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 20:49:23,273 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 20:49:23,273 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 20:49:23,274 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_76c33b96-73fc-4c35-9e1c-29cb423b0e96/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product61.cil.c [2019-11-15 20:49:23,362 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_76c33b96-73fc-4c35-9e1c-29cb423b0e96/bin/uautomizer/data/4de594f8c/fc2fec18be644a2e9f72ba4ae05a67d0/FLAG48d84cbc4 [2019-11-15 20:49:23,981 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 20:49:23,982 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_76c33b96-73fc-4c35-9e1c-29cb423b0e96/sv-benchmarks/c/product-lines/minepump_spec5_product61.cil.c [2019-11-15 20:49:23,996 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_76c33b96-73fc-4c35-9e1c-29cb423b0e96/bin/uautomizer/data/4de594f8c/fc2fec18be644a2e9f72ba4ae05a67d0/FLAG48d84cbc4 [2019-11-15 20:49:24,221 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_76c33b96-73fc-4c35-9e1c-29cb423b0e96/bin/uautomizer/data/4de594f8c/fc2fec18be644a2e9f72ba4ae05a67d0 [2019-11-15 20:49:24,225 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 20:49:24,226 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 20:49:24,228 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 20:49:24,228 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 20:49:24,233 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 20:49:24,234 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:49:24" (1/1) ... [2019-11-15 20:49:24,237 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24da03c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:49:24, skipping insertion in model container [2019-11-15 20:49:24,237 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:49:24" (1/1) ... [2019-11-15 20:49:24,246 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 20:49:24,319 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 20:49:24,809 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:49:24,837 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 20:49:24,955 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:49:25,015 INFO L192 MainTranslator]: Completed translation [2019-11-15 20:49:25,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:49:25 WrapperNode [2019-11-15 20:49:25,015 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 20:49:25,016 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 20:49:25,016 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 20:49:25,017 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 20:49:25,024 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:49:25" (1/1) ... [2019-11-15 20:49:25,044 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:49:25" (1/1) ... [2019-11-15 20:49:25,119 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 20:49:25,119 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 20:49:25,120 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 20:49:25,120 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 20:49:25,131 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:49:25" (1/1) ... [2019-11-15 20:49:25,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:49:25" (1/1) ... [2019-11-15 20:49:25,142 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:49:25" (1/1) ... [2019-11-15 20:49:25,150 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:49:25" (1/1) ... [2019-11-15 20:49:25,207 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:49:25" (1/1) ... [2019-11-15 20:49:25,221 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:49:25" (1/1) ... [2019-11-15 20:49:25,239 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:49:25" (1/1) ... [2019-11-15 20:49:25,251 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 20:49:25,252 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 20:49:25,253 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 20:49:25,258 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 20:49:25,259 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:49:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_76c33b96-73fc-4c35-9e1c-29cb423b0e96/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 20:49:25,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 20:49:25,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-15 20:49:25,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 20:49:25,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 20:49:26,889 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 20:49:26,889 INFO L284 CfgBuilder]: Removed 362 assume(true) statements. [2019-11-15 20:49:26,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:49:26 BoogieIcfgContainer [2019-11-15 20:49:26,891 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 20:49:26,891 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-15 20:49:26,891 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-15 20:49:26,895 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-15 20:49:26,896 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 20:49:26,896 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.11 08:49:24" (1/3) ... [2019-11-15 20:49:26,897 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2e43811e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 08:49:26, skipping insertion in model container [2019-11-15 20:49:26,897 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 20:49:26,898 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:49:25" (2/3) ... [2019-11-15 20:49:26,898 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2e43811e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 08:49:26, skipping insertion in model container [2019-11-15 20:49:26,898 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 20:49:26,898 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:49:26" (3/3) ... [2019-11-15 20:49:26,900 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product61.cil.c [2019-11-15 20:49:26,955 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-15 20:49:26,955 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-15 20:49:26,955 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-15 20:49:26,956 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 20:49:26,956 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 20:49:26,956 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-15 20:49:26,956 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 20:49:26,956 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-15 20:49:26,988 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 231 states. [2019-11-15 20:49:27,028 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 151 [2019-11-15 20:49:27,028 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 20:49:27,029 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 20:49:27,039 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:49:27,039 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:49:27,039 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-15 20:49:27,040 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 231 states. [2019-11-15 20:49:27,052 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 151 [2019-11-15 20:49:27,053 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 20:49:27,053 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 20:49:27,054 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:49:27,055 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:49:27,061 INFO L791 eck$LassoCheckResult]: Stem: 90#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(13);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string16.base, #t~string16.offset, 1);call write~init~int(80, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(117, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(109, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(112, #t~string16.base, 4 + #t~string16.offset, 1);call write~init~int(58, #t~string16.base, 5 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 6 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string22.base, #t~string22.offset, 1);call write~init~int(32, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string24.base, #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 1 + #t~string24.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(13);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string30.base, #t~string30.offset, 1);call write~init~int(77, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(101, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(116, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(104, #t~string30.base, 4 + #t~string30.offset, 1);call write~init~int(58, #t~string30.base, 5 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 6 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string32.base, #t~string32.offset, 1);call write~init~int(82, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(73, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(84, #t~string32.base, 3 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 4 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(75, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string36.base, #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 1 + #t~string36.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 3#L-1true havoc main_#res;havoc main_#t~ret76, main_~retValue_acc~13, main_~tmp~11;havoc main_~retValue_acc~13;havoc main_~tmp~11; 109#L908true havoc valid_product_#res;havoc valid_product_~retValue_acc~12;havoc valid_product_~retValue_acc~12;valid_product_~retValue_acc~12 := 1;valid_product_#res := valid_product_~retValue_acc~12; 215#L916true main_#t~ret76 := valid_product_#res;main_~tmp~11 := main_#t~ret76;havoc main_#t~ret76; 82#L1013true assume 0 != main_~tmp~11; 14#L989true ~switchedOnBeforeTS~0 := 0; 38#L840true havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 224#L861-1true [2019-11-15 20:49:27,062 INFO L793 eck$LassoCheckResult]: Loop: 224#L861-1true assume !false; 96#L55true assume test_~splverifierCounter~0 < 4; 164#L56true test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 35#L64true assume !(0 != test_~tmp~0); 33#L64-1true test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 217#L74true assume !(0 != test_~tmp___0~0); 203#L74-1true test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 129#L84true assume 0 != test_~tmp___2~0; 233#L90-2true havoc __utac_acc__Specification5_spec__2_#t~ret72;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 27#L284true __utac_acc__Specification5_spec__2_#t~ret72 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret72;havoc __utac_acc__Specification5_spec__2_#t~ret72; 222#L850true assume !(0 != ~pumpRunning~0); 43#L130true assume !(0 != ~systemActive~0); 120#L137true havoc __utac_acc__Specification5_spec__3_#t~ret73, __utac_acc__Specification5_spec__3_#t~ret74, __utac_acc__Specification5_spec__3_~tmp~10, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~10;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 4#L439true __utac_acc__Specification5_spec__3_#t~ret73 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~10 := __utac_acc__Specification5_spec__3_#t~ret73;havoc __utac_acc__Specification5_spec__3_#t~ret73; 220#L861true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~10); 224#L861-1true [2019-11-15 20:49:27,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:49:27,068 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-11-15 20:49:27,078 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:49:27,078 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597168992] [2019-11-15 20:49:27,078 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:49:27,079 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:49:27,079 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:49:27,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:49:28,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:49:28,409 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:49:28,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:49:28,411 INFO L82 PathProgramCache]: Analyzing trace with hash 100753900, now seen corresponding path program 1 times [2019-11-15 20:49:28,411 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:49:28,412 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701509497] [2019-11-15 20:49:28,412 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:49:28,412 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:49:28,412 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:49:28,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:49:28,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:49:28,430 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:49:28,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:49:28,433 INFO L82 PathProgramCache]: Analyzing trace with hash 2034779110, now seen corresponding path program 1 times [2019-11-15 20:49:28,433 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:49:28,433 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017897107] [2019-11-15 20:49:28,434 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:49:28,434 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:49:28,434 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:49:28,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:49:28,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:49:28,595 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017897107] [2019-11-15 20:49:28,596 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:49:28,596 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 20:49:28,596 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811846629] [2019-11-15 20:49:28,722 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:49:28,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 20:49:28,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-15 20:49:28,742 INFO L87 Difference]: Start difference. First operand 231 states. Second operand 6 states. [2019-11-15 20:49:28,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:49:28,906 INFO L93 Difference]: Finished difference Result 231 states and 334 transitions. [2019-11-15 20:49:28,911 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 20:49:28,913 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 231 states and 334 transitions. [2019-11-15 20:49:28,920 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 149 [2019-11-15 20:49:28,938 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 231 states to 224 states and 327 transitions. [2019-11-15 20:49:28,940 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 224 [2019-11-15 20:49:28,942 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 224 [2019-11-15 20:49:28,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 224 states and 327 transitions. [2019-11-15 20:49:28,945 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 20:49:28,945 INFO L688 BuchiCegarLoop]: Abstraction has 224 states and 327 transitions. [2019-11-15 20:49:28,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states and 327 transitions. [2019-11-15 20:49:28,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2019-11-15 20:49:28,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2019-11-15 20:49:28,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 327 transitions. [2019-11-15 20:49:29,000 INFO L711 BuchiCegarLoop]: Abstraction has 224 states and 327 transitions. [2019-11-15 20:49:29,000 INFO L591 BuchiCegarLoop]: Abstraction has 224 states and 327 transitions. [2019-11-15 20:49:29,000 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-15 20:49:29,000 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 224 states and 327 transitions. [2019-11-15 20:49:29,003 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 149 [2019-11-15 20:49:29,003 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 20:49:29,004 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 20:49:29,005 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:49:29,005 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:49:29,005 INFO L791 eck$LassoCheckResult]: Stem: 611#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(13);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string16.base, #t~string16.offset, 1);call write~init~int(80, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(117, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(109, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(112, #t~string16.base, 4 + #t~string16.offset, 1);call write~init~int(58, #t~string16.base, 5 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 6 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string22.base, #t~string22.offset, 1);call write~init~int(32, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string24.base, #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 1 + #t~string24.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(13);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string30.base, #t~string30.offset, 1);call write~init~int(77, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(101, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(116, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(104, #t~string30.base, 4 + #t~string30.offset, 1);call write~init~int(58, #t~string30.base, 5 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 6 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string32.base, #t~string32.offset, 1);call write~init~int(82, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(73, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(84, #t~string32.base, 3 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 4 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(75, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string36.base, #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 1 + #t~string36.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 480#L-1 havoc main_#res;havoc main_#t~ret76, main_~retValue_acc~13, main_~tmp~11;havoc main_~retValue_acc~13;havoc main_~tmp~11; 481#L908 havoc valid_product_#res;havoc valid_product_~retValue_acc~12;havoc valid_product_~retValue_acc~12;valid_product_~retValue_acc~12 := 1;valid_product_#res := valid_product_~retValue_acc~12; 636#L916 main_#t~ret76 := valid_product_#res;main_~tmp~11 := main_#t~ret76;havoc main_#t~ret76; 604#L1013 assume 0 != main_~tmp~11; 497#L989 ~switchedOnBeforeTS~0 := 0; 498#L840 havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 537#L861-1 [2019-11-15 20:49:29,006 INFO L793 eck$LassoCheckResult]: Loop: 537#L861-1 assume !false; 621#L55 assume test_~splverifierCounter~0 < 4; 622#L56 test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 531#L64 assume !(0 != test_~tmp~0); 527#L64-1 test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 528#L74 assume !(0 != test_~tmp___0~0); 700#L74-1 test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 654#L84 assume 0 != test_~tmp___2~0; 656#L90-2 havoc __utac_acc__Specification5_spec__2_#t~ret72;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 520#L284 __utac_acc__Specification5_spec__2_#t~ret72 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret72;havoc __utac_acc__Specification5_spec__2_#t~ret72; 521#L850 assume !(0 != ~pumpRunning~0); 544#L130 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret6, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 545#L214 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret5, processEnvironment__wrappee__methaneQuery_~tmp~2;havoc processEnvironment__wrappee__methaneQuery_~tmp~2; 650#L188-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret4, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 683#L162-3 assume !(0 == ~pumpRunning~0); 509#L137 havoc __utac_acc__Specification5_spec__3_#t~ret73, __utac_acc__Specification5_spec__3_#t~ret74, __utac_acc__Specification5_spec__3_~tmp~10, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~10;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 482#L439 __utac_acc__Specification5_spec__3_#t~ret73 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~10 := __utac_acc__Specification5_spec__3_#t~ret73;havoc __utac_acc__Specification5_spec__3_#t~ret73; 483#L861 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~10); 537#L861-1 [2019-11-15 20:49:29,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:49:29,006 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-11-15 20:49:29,007 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:49:29,007 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304089452] [2019-11-15 20:49:29,007 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:49:29,007 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:49:29,008 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:49:29,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:49:29,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:49:29,611 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:49:29,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:49:29,612 INFO L82 PathProgramCache]: Analyzing trace with hash 245468073, now seen corresponding path program 1 times [2019-11-15 20:49:29,612 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:49:29,612 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097297135] [2019-11-15 20:49:29,613 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:49:29,613 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:49:29,613 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:49:29,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:49:29,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:49:29,642 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097297135] [2019-11-15 20:49:29,643 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:49:29,643 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 20:49:29,643 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899668479] [2019-11-15 20:49:29,644 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-11-15 20:49:29,644 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:49:29,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 20:49:29,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 20:49:29,645 INFO L87 Difference]: Start difference. First operand 224 states and 327 transitions. cyclomatic complexity: 105 Second operand 3 states. [2019-11-15 20:49:29,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:49:29,859 INFO L93 Difference]: Finished difference Result 228 states and 314 transitions. [2019-11-15 20:49:29,859 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 20:49:29,860 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 228 states and 314 transitions. [2019-11-15 20:49:29,863 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 156 [2019-11-15 20:49:29,867 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 228 states to 228 states and 314 transitions. [2019-11-15 20:49:29,867 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 228 [2019-11-15 20:49:29,868 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 228 [2019-11-15 20:49:29,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 228 states and 314 transitions. [2019-11-15 20:49:29,870 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 20:49:29,871 INFO L688 BuchiCegarLoop]: Abstraction has 228 states and 314 transitions. [2019-11-15 20:49:29,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states and 314 transitions. [2019-11-15 20:49:29,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2019-11-15 20:49:29,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2019-11-15 20:49:29,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 314 transitions. [2019-11-15 20:49:29,885 INFO L711 BuchiCegarLoop]: Abstraction has 228 states and 314 transitions. [2019-11-15 20:49:29,885 INFO L591 BuchiCegarLoop]: Abstraction has 228 states and 314 transitions. [2019-11-15 20:49:29,885 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-15 20:49:29,886 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 228 states and 314 transitions. [2019-11-15 20:49:29,888 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 156 [2019-11-15 20:49:29,888 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 20:49:29,888 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 20:49:29,891 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:49:29,891 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:49:29,892 INFO L791 eck$LassoCheckResult]: Stem: 1111#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(13);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string16.base, #t~string16.offset, 1);call write~init~int(80, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(117, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(109, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(112, #t~string16.base, 4 + #t~string16.offset, 1);call write~init~int(58, #t~string16.base, 5 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 6 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string22.base, #t~string22.offset, 1);call write~init~int(32, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string24.base, #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 1 + #t~string24.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(13);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string30.base, #t~string30.offset, 1);call write~init~int(77, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(101, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(116, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(104, #t~string30.base, 4 + #t~string30.offset, 1);call write~init~int(58, #t~string30.base, 5 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 6 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string32.base, #t~string32.offset, 1);call write~init~int(82, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(73, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(84, #t~string32.base, 3 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 4 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(75, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string36.base, #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 1 + #t~string36.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 945#L-1 havoc main_#res;havoc main_#t~ret76, main_~retValue_acc~13, main_~tmp~11;havoc main_~retValue_acc~13;havoc main_~tmp~11; 946#L908 havoc valid_product_#res;havoc valid_product_~retValue_acc~12;havoc valid_product_~retValue_acc~12;valid_product_~retValue_acc~12 := 1;valid_product_#res := valid_product_~retValue_acc~12; 1121#L916 main_#t~ret76 := valid_product_#res;main_~tmp~11 := main_#t~ret76;havoc main_#t~ret76; 1105#L1013 assume 0 != main_~tmp~11; 1005#L989 ~switchedOnBeforeTS~0 := 0; 1006#L840 havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 939#L861-1 [2019-11-15 20:49:29,893 INFO L793 eck$LassoCheckResult]: Loop: 939#L861-1 assume !false; 1115#L55 assume test_~splverifierCounter~0 < 4; 1022#L56 test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 1023#L64 assume !(0 != test_~tmp~0); 1051#L64-1 test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 1052#L74 assume !(0 != test_~tmp___0~0); 1084#L74-1 test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 942#L84 assume 0 != test_~tmp___2~0; 944#L90-2 havoc __utac_acc__Specification5_spec__2_#t~ret72;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 1044#L284 __utac_acc__Specification5_spec__2_#t~ret72 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret72;havoc __utac_acc__Specification5_spec__2_#t~ret72; 1045#L850 assume !(0 != ~pumpRunning~0); 1062#L130 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret6, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 1063#L214 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret5, processEnvironment__wrappee__methaneQuery_~tmp~2;havoc processEnvironment__wrappee__methaneQuery_~tmp~2; 989#L188-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret4, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 990#L162-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret25, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 974#L447-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 975#L452-3 isHighWaterLevel_#t~ret25 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret25;havoc isHighWaterLevel_#t~ret25; 1047#L333-9 assume 0 != isHighWaterLevel_~tmp~5;isHighWaterLevel_~tmp___0~1 := 0; 1070#L333-11 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 1066#L339-3 processEnvironment__wrappee__highWaterSensor_#t~ret4 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~1 := processEnvironment__wrappee__highWaterSensor_#t~ret4;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4; 1027#L166-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1); 987#L137 havoc __utac_acc__Specification5_spec__3_#t~ret73, __utac_acc__Specification5_spec__3_#t~ret74, __utac_acc__Specification5_spec__3_~tmp~10, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~10;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 954#L439 __utac_acc__Specification5_spec__3_#t~ret73 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~10 := __utac_acc__Specification5_spec__3_#t~ret73;havoc __utac_acc__Specification5_spec__3_#t~ret73; 955#L861 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~10); 939#L861-1 [2019-11-15 20:49:29,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:49:29,893 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-11-15 20:49:29,894 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:49:29,894 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902748148] [2019-11-15 20:49:29,894 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:49:29,894 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:49:29,895 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:49:30,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:49:30,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:49:30,281 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:49:30,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:49:30,282 INFO L82 PathProgramCache]: Analyzing trace with hash 804540373, now seen corresponding path program 1 times [2019-11-15 20:49:30,282 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:49:30,282 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299342462] [2019-11-15 20:49:30,283 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:49:30,283 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:49:30,283 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:49:30,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:49:30,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:49:30,347 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299342462] [2019-11-15 20:49:30,347 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:49:30,347 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 20:49:30,348 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27781384] [2019-11-15 20:49:30,348 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-11-15 20:49:30,348 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:49:30,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 20:49:30,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-15 20:49:30,349 INFO L87 Difference]: Start difference. First operand 228 states and 314 transitions. cyclomatic complexity: 88 Second operand 5 states. [2019-11-15 20:49:30,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:49:30,821 INFO L93 Difference]: Finished difference Result 1078 states and 1497 transitions. [2019-11-15 20:49:30,822 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-15 20:49:30,822 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1078 states and 1497 transitions. [2019-11-15 20:49:30,834 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 733 [2019-11-15 20:49:30,850 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1078 states to 1078 states and 1497 transitions. [2019-11-15 20:49:30,850 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1078 [2019-11-15 20:49:30,853 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1078 [2019-11-15 20:49:30,854 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1078 states and 1497 transitions. [2019-11-15 20:49:30,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 20:49:30,864 INFO L688 BuchiCegarLoop]: Abstraction has 1078 states and 1497 transitions. [2019-11-15 20:49:30,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1078 states and 1497 transitions. [2019-11-15 20:49:30,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078 to 446. [2019-11-15 20:49:30,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 446 states. [2019-11-15 20:49:30,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 609 transitions. [2019-11-15 20:49:30,894 INFO L711 BuchiCegarLoop]: Abstraction has 446 states and 609 transitions. [2019-11-15 20:49:30,894 INFO L591 BuchiCegarLoop]: Abstraction has 446 states and 609 transitions. [2019-11-15 20:49:30,894 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-15 20:49:30,895 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 446 states and 609 transitions. [2019-11-15 20:49:30,898 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 310 [2019-11-15 20:49:30,899 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 20:49:30,899 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 20:49:30,900 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:49:30,900 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:49:30,900 INFO L791 eck$LassoCheckResult]: Stem: 2451#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(13);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string16.base, #t~string16.offset, 1);call write~init~int(80, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(117, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(109, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(112, #t~string16.base, 4 + #t~string16.offset, 1);call write~init~int(58, #t~string16.base, 5 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 6 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string22.base, #t~string22.offset, 1);call write~init~int(32, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string24.base, #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 1 + #t~string24.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(13);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string30.base, #t~string30.offset, 1);call write~init~int(77, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(101, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(116, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(104, #t~string30.base, 4 + #t~string30.offset, 1);call write~init~int(58, #t~string30.base, 5 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 6 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string32.base, #t~string32.offset, 1);call write~init~int(82, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(73, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(84, #t~string32.base, 3 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 4 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(75, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string36.base, #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 1 + #t~string36.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 2272#L-1 havoc main_#res;havoc main_#t~ret76, main_~retValue_acc~13, main_~tmp~11;havoc main_~retValue_acc~13;havoc main_~tmp~11; 2273#L908 havoc valid_product_#res;havoc valid_product_~retValue_acc~12;havoc valid_product_~retValue_acc~12;valid_product_~retValue_acc~12 := 1;valid_product_#res := valid_product_~retValue_acc~12; 2466#L916 main_#t~ret76 := valid_product_#res;main_~tmp~11 := main_#t~ret76;havoc main_#t~ret76; 2444#L1013 assume 0 != main_~tmp~11; 2336#L989 ~switchedOnBeforeTS~0 := 0; 2337#L840 havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2391#L861-1 [2019-11-15 20:49:30,901 INFO L793 eck$LassoCheckResult]: Loop: 2391#L861-1 assume !false; 2669#L55 assume test_~splverifierCounter~0 < 4; 2670#L56 test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 2700#L64 assume !(0 != test_~tmp~0); 2697#L64-1 test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 2696#L74 assume !(0 != test_~tmp___0~0); 2694#L74-1 test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 2693#L84 assume 0 != test_~tmp___2~0; 2691#L90-2 havoc __utac_acc__Specification5_spec__2_#t~ret72;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 2690#L284 __utac_acc__Specification5_spec__2_#t~ret72 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret72;havoc __utac_acc__Specification5_spec__2_#t~ret72; 2679#L850 assume !(0 != ~pumpRunning~0); 2397#L130 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret6, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 2398#L214 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret5, processEnvironment__wrappee__methaneQuery_~tmp~2;havoc processEnvironment__wrappee__methaneQuery_~tmp~2; 2320#L188-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret4, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 2321#L162-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret25, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 2303#L447-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 2304#L452-3 isHighWaterLevel_#t~ret25 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret25;havoc isHighWaterLevel_#t~ret25; 2379#L333-9 assume 0 != isHighWaterLevel_~tmp~5;isHighWaterLevel_~tmp___0~1 := 0; 2406#L333-11 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 2401#L339-3 processEnvironment__wrappee__highWaterSensor_#t~ret4 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~1 := processEnvironment__wrappee__highWaterSensor_#t~ret4;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4; 2360#L166-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1); 2318#L137 havoc __utac_acc__Specification5_spec__3_#t~ret73, __utac_acc__Specification5_spec__3_#t~ret74, __utac_acc__Specification5_spec__3_~tmp~10, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~10;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 2282#L439 __utac_acc__Specification5_spec__3_#t~ret73 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~10 := __utac_acc__Specification5_spec__3_#t~ret73;havoc __utac_acc__Specification5_spec__3_#t~ret73; 2283#L861 assume 2 != __utac_acc__Specification5_spec__3_~tmp~10;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 2374#L284-1 __utac_acc__Specification5_spec__3_#t~ret74 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~3 := __utac_acc__Specification5_spec__3_#t~ret74;havoc __utac_acc__Specification5_spec__3_#t~ret74; 2375#L865 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~3); 2391#L861-1 [2019-11-15 20:49:30,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:49:30,901 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2019-11-15 20:49:30,901 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:49:30,902 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943342449] [2019-11-15 20:49:30,902 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:49:30,902 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:49:30,902 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:49:31,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:49:31,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:49:31,293 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:49:31,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:49:31,294 INFO L82 PathProgramCache]: Analyzing trace with hash 69177840, now seen corresponding path program 1 times [2019-11-15 20:49:31,294 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:49:31,294 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898484643] [2019-11-15 20:49:31,295 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:49:31,295 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:49:31,295 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:49:31,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:49:31,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:49:31,311 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:49:31,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:49:31,312 INFO L82 PathProgramCache]: Analyzing trace with hash -1897033802, now seen corresponding path program 1 times [2019-11-15 20:49:31,312 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:49:31,312 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640431299] [2019-11-15 20:49:31,313 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:49:31,313 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:49:31,313 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:49:31,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:49:31,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:49:31,776 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:49:32,005 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2019-11-15 20:49:57,764 WARN L191 SmtUtils]: Spent 25.65 s on a formula simplification. DAG size of input: 455 DAG size of output: 453 [2019-11-15 20:50:12,902 WARN L191 SmtUtils]: Spent 15.13 s on a formula simplification that was a NOOP. DAG size: 451 [2019-11-15 20:50:12,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.11 08:50:12 BoogieIcfgContainer [2019-11-15 20:50:12,976 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-15 20:50:12,976 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 20:50:12,977 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 20:50:12,977 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 20:50:12,978 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:49:26" (3/4) ... [2019-11-15 20:50:12,981 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-15 20:50:13,052 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_76c33b96-73fc-4c35-9e1c-29cb423b0e96/bin/uautomizer/witness.graphml [2019-11-15 20:50:13,052 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 20:50:13,054 INFO L168 Benchmark]: Toolchain (without parser) took 48827.89 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 380.6 MB). Free memory was 941.1 MB in the beginning and 1.1 GB in the end (delta: -136.7 MB). Peak memory consumption was 244.0 MB. Max. memory is 11.5 GB. [2019-11-15 20:50:13,054 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:50:13,055 INFO L168 Benchmark]: CACSL2BoogieTranslator took 788.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 941.1 MB in the beginning and 1.1 GB in the end (delta: -175.7 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-11-15 20:50:13,056 INFO L168 Benchmark]: Boogie Procedure Inliner took 102.89 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-15 20:50:13,056 INFO L168 Benchmark]: Boogie Preprocessor took 132.39 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:50:13,057 INFO L168 Benchmark]: RCFGBuilder took 1638.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 88.7 MB). Peak memory consumption was 88.7 MB. Max. memory is 11.5 GB. [2019-11-15 20:50:13,057 INFO L168 Benchmark]: BuchiAutomizer took 46084.87 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 240.1 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -72.4 MB). Peak memory consumption was 383.5 MB. Max. memory is 11.5 GB. [2019-11-15 20:50:13,058 INFO L168 Benchmark]: Witness Printer took 75.92 ms. Allocated memory is still 1.4 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 11.5 GB. [2019-11-15 20:50:13,061 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 788.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 941.1 MB in the beginning and 1.1 GB in the end (delta: -175.7 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 102.89 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 132.39 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1638.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 88.7 MB). Peak memory consumption was 88.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 46084.87 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 240.1 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -72.4 MB). Peak memory consumption was 383.5 MB. Max. memory is 11.5 GB. * Witness Printer took 75.92 ms. Allocated memory is still 1.4 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 446 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 46.0s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 44.7s. Construction of modules took 0.5s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 632 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 446 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1046 SDtfs, 2438 SDslu, 1361 SDs, 0 SdLazy, 237 SolverSat, 70 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 54]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=0} State at position 1 is {NULL=0, NULL=0, NULL=-6, NULL=-9, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@54509084=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@b542e6a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6654ca68=68, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@547bbaeb=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5c5f706=0, retValue_acc=1, NULL=-23, methaneLevelCritical=0, NULL=0, retValue_acc=0, NULL=-24, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ac62397=0, tmp___1=0, NULL=-10, NULL=-8, cleanupTimeShifts=4, tmp=0, NULL=-5, tmp=1, waterLevel=1, NULL=0, NULL=-22, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@33fed55e=0, NULL=0, tmp___0=0, NULL=-20, \result=1, head=0, pumpRunning=0, NULL=-16, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@da17e46=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@219cb71f=0, NULL=0, NULL=0, \result=1, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@d636346=0, tmp=1, NULL=-11, retValue_acc=1, NULL=-21, tmp=0, head=0, NULL=0, NULL=-13, NULL=-14, tmp=0, NULL=-1, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=-25, tmp=0, NULL=-4, switchedOnBeforeTS=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@363a0c43=0, \result=0, NULL=0, systemActive=1, NULL=-2, \result=1, NULL=0, NULL=0, NULL=-3, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=-15, \result=0, tmp___0=0, NULL=-18, NULL=0, NULL=0, NULL=-17, NULL=-12, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@51995da6=0, tmp___2=68, splverifierCounter=0, NULL=0, retValue_acc=0, NULL=0, NULL=0, NULL=-7, NULL=0, NULL=-19} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L118] int pumpRunning = 0; [L119] int systemActive = 1; [L364] int waterLevel = 1; [L365] int methaneLevelCritical = 0; [L636] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L834] int switchedOnBeforeTS ; [L930] int cleanupTimeShifts = 4; [L1004] int retValue_acc ; [L1005] int tmp ; [L912] int retValue_acc ; [L915] retValue_acc = 1 [L916] return (retValue_acc); [L1011] tmp = valid_product() [L1013] COND TRUE \read(tmp) [L839] switchedOnBeforeTS = 0 [L45] int splverifierCounter ; [L46] int tmp ; [L47] int tmp___0 ; [L48] int tmp___1 ; [L49] int tmp___2 ; [L52] splverifierCounter = 0 Loop: [L54] COND TRUE 1 [L56] COND TRUE splverifierCounter < 4 [L62] tmp = __VERIFIER_nondet_int() [L64] COND FALSE !(\read(tmp)) [L72] tmp___0 = __VERIFIER_nondet_int() [L74] COND FALSE !(\read(tmp___0)) [L82] tmp___2 = __VERIFIER_nondet_int() [L84] COND TRUE \read(tmp___2) [L280] int retValue_acc ; [L283] retValue_acc = pumpRunning [L284] return (retValue_acc); [L848] switchedOnBeforeTS = isPumpRunning() [L130] COND FALSE !(\read(pumpRunning)) [L137] COND TRUE \read(systemActive) [L211] int tmp ; [L214] COND FALSE !(\read(pumpRunning)) [L185] int tmp ; [L188] COND FALSE !(\read(pumpRunning)) [L159] int tmp ; [L162] COND TRUE ! pumpRunning [L325] int retValue_acc ; [L326] int tmp ; [L327] int tmp___0 ; [L444] int retValue_acc ; [L447] COND TRUE waterLevel < 2 [L448] retValue_acc = 1 [L449] return (retValue_acc); [L331] tmp = isHighWaterSensorDry() [L333] COND TRUE \read(tmp) [L334] tmp___0 = 0 [L338] retValue_acc = tmp___0 [L339] return (retValue_acc); [L164] tmp = isHighWaterLevel() [L166] COND FALSE !(\read(tmp)) [L854] int tmp ; [L855] int tmp___0 ; [L435] int retValue_acc ; [L438] retValue_acc = waterLevel [L439] return (retValue_acc); [L859] tmp = getWaterLevel() [L861] COND TRUE tmp != 2 [L280] int retValue_acc ; [L283] retValue_acc = pumpRunning [L284] return (retValue_acc); [L863] tmp___0 = isPumpRunning() [L865] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...