./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product42.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_23e7fd30-b8fd-44f7-a06f-cf1d9a256df7/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_23e7fd30-b8fd-44f7-a06f-cf1d9a256df7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_23e7fd30-b8fd-44f7-a06f-cf1d9a256df7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_23e7fd30-b8fd-44f7-a06f-cf1d9a256df7/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product42.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_23e7fd30-b8fd-44f7-a06f-cf1d9a256df7/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_23e7fd30-b8fd-44f7-a06f-cf1d9a256df7/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 c0851c41d1dd56ed840a839dd5bb938ccfe6bf65 ........................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 09:02:23,083 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:02:23,086 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:02:23,096 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:02:23,097 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:02:23,098 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:02:23,099 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:02:23,101 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:02:23,104 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:02:23,106 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:02:23,108 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:02:23,109 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:02:23,110 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:02:23,110 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:02:23,111 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:02:23,112 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:02:23,112 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:02:23,113 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:02:23,114 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:02:23,115 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:02:23,116 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:02:23,117 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:02:23,118 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:02:23,119 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:02:23,120 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:02:23,121 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:02:23,121 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:02:23,122 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:02:23,122 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:02:23,123 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:02:23,123 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:02:23,123 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:02:23,124 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:02:23,125 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:02:23,125 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:02:23,125 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:02:23,126 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:02:23,126 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:02:23,126 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:02:23,127 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:02:23,127 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:02:23,128 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_23e7fd30-b8fd-44f7-a06f-cf1d9a256df7/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-10-22 09:02:23,138 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:02:23,139 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:02:23,140 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:02:23,140 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:02:23,140 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:02:23,140 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 09:02:23,140 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 09:02:23,141 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 09:02:23,141 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 09:02:23,141 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 09:02:23,141 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 09:02:23,141 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:02:23,141 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:02:23,141 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 09:02:23,142 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:02:23,142 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:02:23,142 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:02:23,142 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 09:02:23,142 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 09:02:23,142 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 09:02:23,142 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:02:23,143 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:02:23,143 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 09:02:23,143 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:02:23,143 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 09:02:23,143 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:02:23,143 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:02:23,144 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 09:02:23,144 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:02:23,144 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:02:23,144 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 09:02:23,145 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 09:02:23,145 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_23e7fd30-b8fd-44f7-a06f-cf1d9a256df7/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 -> c0851c41d1dd56ed840a839dd5bb938ccfe6bf65 [2019-10-22 09:02:23,167 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:02:23,175 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:02:23,180 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:02:23,181 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:02:23,182 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:02:23,182 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_23e7fd30-b8fd-44f7-a06f-cf1d9a256df7/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product42.cil.c [2019-10-22 09:02:23,233 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_23e7fd30-b8fd-44f7-a06f-cf1d9a256df7/bin/uautomizer/data/69f4d1a1b/b7cf125d23d84cbdb166613f023052ea/FLAG83c0496cb [2019-10-22 09:02:23,666 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:02:23,667 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_23e7fd30-b8fd-44f7-a06f-cf1d9a256df7/sv-benchmarks/c/product-lines/minepump_spec4_product42.cil.c [2019-10-22 09:02:23,675 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_23e7fd30-b8fd-44f7-a06f-cf1d9a256df7/bin/uautomizer/data/69f4d1a1b/b7cf125d23d84cbdb166613f023052ea/FLAG83c0496cb [2019-10-22 09:02:23,685 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_23e7fd30-b8fd-44f7-a06f-cf1d9a256df7/bin/uautomizer/data/69f4d1a1b/b7cf125d23d84cbdb166613f023052ea [2019-10-22 09:02:23,687 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:02:23,688 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:02:23,689 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:02:23,689 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:02:23,693 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:02:23,693 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:02:23" (1/1) ... [2019-10-22 09:02:23,695 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fc74767 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:23, skipping insertion in model container [2019-10-22 09:02:23,696 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:02:23" (1/1) ... [2019-10-22 09:02:23,702 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:02:23,742 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:02:24,061 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:02:24,074 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:02:24,136 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:02:24,164 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:02:24,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:24 WrapperNode [2019-10-22 09:02:24,165 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:02:24,165 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:02:24,165 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:02:24,166 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:02:24,173 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:24" (1/1) ... [2019-10-22 09:02:24,197 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:24" (1/1) ... [2019-10-22 09:02:24,229 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:02:24,229 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:02:24,229 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:02:24,230 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:02:24,244 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:24" (1/1) ... [2019-10-22 09:02:24,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:24" (1/1) ... [2019-10-22 09:02:24,247 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:24" (1/1) ... [2019-10-22 09:02:24,248 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:24" (1/1) ... [2019-10-22 09:02:24,257 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:24" (1/1) ... [2019-10-22 09:02:24,263 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:24" (1/1) ... [2019-10-22 09:02:24,265 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:24" (1/1) ... [2019-10-22 09:02:24,269 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:02:24,270 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:02:24,270 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:02:24,270 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:02:24,271 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_23e7fd30-b8fd-44f7-a06f-cf1d9a256df7/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:02:24,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 09:02:24,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 09:02:24,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:02:24,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:02:24,997 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:02:24,997 INFO L284 CfgBuilder]: Removed 116 assume(true) statements. [2019-10-22 09:02:24,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:24 BoogieIcfgContainer [2019-10-22 09:02:24,999 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:02:24,999 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 09:02:24,999 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 09:02:25,003 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 09:02:25,004 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:02:25,004 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 09:02:23" (1/3) ... [2019-10-22 09:02:25,005 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3de444e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 09:02:25, skipping insertion in model container [2019-10-22 09:02:25,005 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:02:25,005 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:24" (2/3) ... [2019-10-22 09:02:25,005 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3de444e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 09:02:25, skipping insertion in model container [2019-10-22 09:02:25,005 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:02:25,006 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:24" (3/3) ... [2019-10-22 09:02:25,011 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product42.cil.c [2019-10-22 09:02:25,058 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 09:02:25,058 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 09:02:25,058 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 09:02:25,058 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:02:25,060 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:02:25,060 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 09:02:25,060 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:02:25,060 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 09:02:25,080 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 84 states. [2019-10-22 09:02:25,106 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2019-10-22 09:02:25,106 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:02:25,106 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:02:25,115 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 09:02:25,115 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:25,116 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 09:02:25,116 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 84 states. [2019-10-22 09:02:25,121 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2019-10-22 09:02:25,121 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:02:25,121 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:02:25,122 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 09:02:25,122 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:25,128 INFO L791 eck$LassoCheckResult]: Stem: 34#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(13);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(80, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(117, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(109, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(112, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(32, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string71.base, #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 1 + #t~string71.offset, 1); 14#L-1true havoc main_#res;havoc main_#t~ret48, main_~retValue_acc~8, main_~tmp~4;havoc main_~retValue_acc~8;havoc main_~tmp~4; 49#L532true havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 75#L540true main_#t~ret48 := valid_product_#res;main_~tmp~4 := main_#t~ret48;havoc main_#t~ret48; 19#L658true assume 0 != main_~tmp~4; 55#L634true havoc test_#t~nondet49, test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 12#L555-1true [2019-10-22 09:02:25,129 INFO L793 eck$LassoCheckResult]: Loop: 12#L555-1true assume !false; 29#L684true assume test_~splverifierCounter~0 < 4; 42#L685true test_~tmp~5 := test_#t~nondet49;havoc test_#t~nondet49; 63#L693true assume !(0 != test_~tmp~5); 50#L693-1true test_~tmp___0~1 := test_#t~nondet50;havoc test_#t~nondet50; 47#L703true assume !(0 != test_~tmp___0~1); 33#L703-1true test_~tmp___2~0 := test_#t~nondet51;havoc test_#t~nondet51; 16#L713true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 38#L721-2true assume !(0 != ~pumpRunning~0); 6#L749true assume !(0 != ~systemActive~0); 65#L756true havoc __utac_acc__Specification4_spec__1_#t~ret46, __utac_acc__Specification4_spec__1_#t~ret47, __utac_acc__Specification4_spec__1_~tmp~3, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~3;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 40#L122true __utac_acc__Specification4_spec__1_#t~ret46 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~3 := __utac_acc__Specification4_spec__1_#t~ret46;havoc __utac_acc__Specification4_spec__1_#t~ret46; 10#L555true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3); 12#L555-1true [2019-10-22 09:02:25,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:25,134 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-10-22 09:02:25,142 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:25,142 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271714847] [2019-10-22 09:02:25,142 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:25,142 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:25,143 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:25,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:25,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:25,911 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:25,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:25,912 INFO L82 PathProgramCache]: Analyzing trace with hash -1680236925, now seen corresponding path program 1 times [2019-10-22 09:02:25,913 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:25,913 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440916502] [2019-10-22 09:02:25,913 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:25,913 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:25,913 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:25,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:25,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:25,973 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440916502] [2019-10-22 09:02:25,974 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:25,974 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:02:25,974 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711971776] [2019-10-22 09:02:25,979 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-10-22 09:02:25,980 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:25,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:02:25,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:02:25,991 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 3 states. [2019-10-22 09:02:26,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:26,040 INFO L93 Difference]: Finished difference Result 84 states and 116 transitions. [2019-10-22 09:02:26,040 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:02:26,042 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 84 states and 116 transitions. [2019-10-22 09:02:26,045 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2019-10-22 09:02:26,050 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 84 states to 77 states and 108 transitions. [2019-10-22 09:02:26,051 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 77 [2019-10-22 09:02:26,052 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 77 [2019-10-22 09:02:26,053 INFO L73 IsDeterministic]: Start isDeterministic. Operand 77 states and 108 transitions. [2019-10-22 09:02:26,053 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 09:02:26,053 INFO L688 BuchiCegarLoop]: Abstraction has 77 states and 108 transitions. [2019-10-22 09:02:26,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states and 108 transitions. [2019-10-22 09:02:26,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2019-10-22 09:02:26,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2019-10-22 09:02:26,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 108 transitions. [2019-10-22 09:02:26,113 INFO L711 BuchiCegarLoop]: Abstraction has 77 states and 108 transitions. [2019-10-22 09:02:26,114 INFO L591 BuchiCegarLoop]: Abstraction has 77 states and 108 transitions. [2019-10-22 09:02:26,114 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 09:02:26,114 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 77 states and 108 transitions. [2019-10-22 09:02:26,116 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2019-10-22 09:02:26,116 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:02:26,116 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:02:26,117 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 09:02:26,117 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:26,117 INFO L791 eck$LassoCheckResult]: Stem: 225#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(13);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(80, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(117, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(109, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(112, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(32, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string71.base, #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 1 + #t~string71.offset, 1); 200#L-1 havoc main_#res;havoc main_#t~ret48, main_~retValue_acc~8, main_~tmp~4;havoc main_~retValue_acc~8;havoc main_~tmp~4; 201#L532 havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 234#L540 main_#t~ret48 := valid_product_#res;main_~tmp~4 := main_#t~ret48;havoc main_#t~ret48; 209#L658 assume 0 != main_~tmp~4; 210#L634 havoc test_#t~nondet49, test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 191#L555-1 [2019-10-22 09:02:26,117 INFO L793 eck$LassoCheckResult]: Loop: 191#L555-1 assume !false; 198#L684 assume test_~splverifierCounter~0 < 4; 219#L685 test_~tmp~5 := test_#t~nondet49;havoc test_#t~nondet49; 231#L693 assume !(0 != test_~tmp~5); 212#L693-1 test_~tmp___0~1 := test_#t~nondet50;havoc test_#t~nondet50; 233#L703 assume !(0 != test_~tmp___0~1); 224#L703-1 test_~tmp___2~0 := test_#t~nondet51;havoc test_#t~nondet51; 204#L713 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 205#L721-2 assume !(0 != ~pumpRunning~0); 183#L749 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret53, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 184#L781 assume !(0 == ~pumpRunning~0); 245#L756 havoc __utac_acc__Specification4_spec__1_#t~ret46, __utac_acc__Specification4_spec__1_#t~ret47, __utac_acc__Specification4_spec__1_~tmp~3, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~3;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 229#L122 __utac_acc__Specification4_spec__1_#t~ret46 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~3 := __utac_acc__Specification4_spec__1_#t~ret46;havoc __utac_acc__Specification4_spec__1_#t~ret46; 190#L555 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3); 191#L555-1 [2019-10-22 09:02:26,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:26,118 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-10-22 09:02:26,118 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:26,118 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799356209] [2019-10-22 09:02:26,118 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:26,118 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:26,127 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:26,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:26,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:26,420 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:26,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:26,421 INFO L82 PathProgramCache]: Analyzing trace with hash -589506373, now seen corresponding path program 1 times [2019-10-22 09:02:26,421 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:26,421 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037814770] [2019-10-22 09:02:26,421 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:26,422 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:26,422 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:26,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:26,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:26,434 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037814770] [2019-10-22 09:02:26,434 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:26,434 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:02:26,435 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707592447] [2019-10-22 09:02:26,435 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-10-22 09:02:26,435 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:26,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:02:26,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:02:26,436 INFO L87 Difference]: Start difference. First operand 77 states and 108 transitions. cyclomatic complexity: 33 Second operand 3 states. [2019-10-22 09:02:26,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:26,522 INFO L93 Difference]: Finished difference Result 118 states and 159 transitions. [2019-10-22 09:02:26,522 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:02:26,523 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 118 states and 159 transitions. [2019-10-22 09:02:26,526 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 82 [2019-10-22 09:02:26,527 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 118 states to 118 states and 159 transitions. [2019-10-22 09:02:26,528 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 118 [2019-10-22 09:02:26,529 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 118 [2019-10-22 09:02:26,529 INFO L73 IsDeterministic]: Start isDeterministic. Operand 118 states and 159 transitions. [2019-10-22 09:02:26,529 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 09:02:26,530 INFO L688 BuchiCegarLoop]: Abstraction has 118 states and 159 transitions. [2019-10-22 09:02:26,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states and 159 transitions. [2019-10-22 09:02:26,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2019-10-22 09:02:26,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2019-10-22 09:02:26,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 159 transitions. [2019-10-22 09:02:26,539 INFO L711 BuchiCegarLoop]: Abstraction has 118 states and 159 transitions. [2019-10-22 09:02:26,539 INFO L591 BuchiCegarLoop]: Abstraction has 118 states and 159 transitions. [2019-10-22 09:02:26,539 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-10-22 09:02:26,540 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 118 states and 159 transitions. [2019-10-22 09:02:26,541 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 82 [2019-10-22 09:02:26,542 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:02:26,542 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:02:26,547 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 09:02:26,547 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] [2019-10-22 09:02:26,547 INFO L791 eck$LassoCheckResult]: Stem: 424#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(13);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(80, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(117, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(109, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(112, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(32, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string71.base, #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 1 + #t~string71.offset, 1); 399#L-1 havoc main_#res;havoc main_#t~ret48, main_~retValue_acc~8, main_~tmp~4;havoc main_~retValue_acc~8;havoc main_~tmp~4; 400#L532 havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 437#L540 main_#t~ret48 := valid_product_#res;main_~tmp~4 := main_#t~ret48;havoc main_#t~ret48; 408#L658 assume 0 != main_~tmp~4; 409#L634 havoc test_#t~nondet49, test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 392#L555-1 [2019-10-22 09:02:26,548 INFO L793 eck$LassoCheckResult]: Loop: 392#L555-1 assume !false; 396#L684 assume test_~splverifierCounter~0 < 4; 418#L685 test_~tmp~5 := test_#t~nondet49;havoc test_#t~nondet49; 432#L693 assume !(0 != test_~tmp~5); 411#L693-1 test_~tmp___0~1 := test_#t~nondet50;havoc test_#t~nondet50; 436#L703 assume !(0 != test_~tmp___0~1); 423#L703-1 test_~tmp___2~0 := test_#t~nondet51;havoc test_#t~nondet51; 402#L713 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 403#L721-2 assume !(0 != ~pumpRunning~0); 427#L749 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret53, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 448#L781 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret72, isHighWaterLevel_~retValue_acc~11, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~11;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 449#L130 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 388#L135 isHighWaterLevel_#t~ret72 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret72;havoc isHighWaterLevel_#t~ret72; 389#L901 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~2 := 0; 431#L901-2 isHighWaterLevel_~retValue_acc~11 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~11; 419#L907 processEnvironment_#t~ret53 := isHighWaterLevel_#res;processEnvironment_~tmp~6 := processEnvironment_#t~ret53;havoc processEnvironment_#t~ret53; 420#L785 assume !(0 != processEnvironment_~tmp~6); 455#L756 havoc __utac_acc__Specification4_spec__1_#t~ret46, __utac_acc__Specification4_spec__1_#t~ret47, __utac_acc__Specification4_spec__1_~tmp~3, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~3;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 430#L122 __utac_acc__Specification4_spec__1_#t~ret46 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~3 := __utac_acc__Specification4_spec__1_#t~ret46;havoc __utac_acc__Specification4_spec__1_#t~ret46; 391#L555 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3); 392#L555-1 [2019-10-22 09:02:26,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:26,548 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-10-22 09:02:26,548 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:26,549 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774410017] [2019-10-22 09:02:26,549 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:26,549 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:26,549 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:26,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:26,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:26,769 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:26,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:26,770 INFO L82 PathProgramCache]: Analyzing trace with hash -1033634393, now seen corresponding path program 1 times [2019-10-22 09:02:26,770 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:26,770 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986964392] [2019-10-22 09:02:26,770 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:26,770 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:26,771 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:26,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:26,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:26,780 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:26,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:26,781 INFO L82 PathProgramCache]: Analyzing trace with hash -1018922419, now seen corresponding path program 1 times [2019-10-22 09:02:26,781 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:26,781 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455806703] [2019-10-22 09:02:26,782 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:26,782 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:26,782 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:26,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:26,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:27,012 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:27,117 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2019-10-22 09:02:51,791 WARN L191 SmtUtils]: Spent 24.62 s on a formula simplification. DAG size of input: 451 DAG size of output: 449 [2019-10-22 09:03:03,646 WARN L191 SmtUtils]: Spent 11.85 s on a formula simplification that was a NOOP. DAG size: 449 [2019-10-22 09:03:03,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 09:03:03 BoogieIcfgContainer [2019-10-22 09:03:03,696 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 09:03:03,696 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:03:03,697 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:03:03,697 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:03:03,697 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:24" (3/4) ... [2019-10-22 09:03:03,700 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-10-22 09:03:03,744 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_23e7fd30-b8fd-44f7-a06f-cf1d9a256df7/bin/uautomizer/witness.graphml [2019-10-22 09:03:03,744 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:03:03,746 INFO L168 Benchmark]: Toolchain (without parser) took 40057.82 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 331.9 MB). Free memory was 939.1 MB in the beginning and 957.8 MB in the end (delta: -18.6 MB). Peak memory consumption was 313.2 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:03,746 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:03:03,746 INFO L168 Benchmark]: CACSL2BoogieTranslator took 476.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -196.0 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:03,747 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.81 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. [2019-10-22 09:03:03,747 INFO L168 Benchmark]: Boogie Preprocessor took 39.99 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:03,748 INFO L168 Benchmark]: RCFGBuilder took 729.27 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: 67.9 MB). Peak memory consumption was 67.9 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:03,748 INFO L168 Benchmark]: BuchiAutomizer took 38696.92 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 181.4 MB). Free memory was 1.1 GB in the beginning and 971.6 MB in the end (delta: 87.2 MB). Peak memory consumption was 399.5 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:03,748 INFO L168 Benchmark]: Witness Printer took 47.98 ms. Allocated memory is still 1.4 GB. Free memory was 971.6 MB in the beginning and 957.8 MB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:03,751 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 476.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -196.0 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 63.81 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 39.99 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 729.27 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: 67.9 MB). Peak memory consumption was 67.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 38696.92 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 181.4 MB). Free memory was 1.1 GB in the beginning and 971.6 MB in the end (delta: 87.2 MB). Peak memory consumption was 399.5 MB. Max. memory is 11.5 GB. * Witness Printer took 47.98 ms. Allocated memory is still 1.4 GB. Free memory was 971.6 MB in the beginning and 957.8 MB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 118 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 38.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 38.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 118 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 219 SDtfs, 203 SDslu, 48 SDs, 0 SdLazy, 24 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 683]: 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=-23, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2e200b6c=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@12d82558=0, NULL=-13, NULL=0, NULL=-14, NULL=0, NULL=-5, NULL=-17, retValue_acc=0, NULL=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4e2c8f7e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2c1cdc22=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@355c1307=54, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@9995ce5=0, NULL=-9, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3392045c=0, tmp___0=0, NULL=0, NULL=0, tmp=0, NULL=-12, NULL=-3, NULL=0, tmp___1=0, NULL=-19, tmp___0=0, NULL=-24, NULL=-16, cleanupTimeShifts=4, NULL=-8, NULL=-25, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=-2, \result=1, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@269b4489=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@48e911e5=0, \result=0, NULL=0, \result=1, retValue_acc=1, head=0, pumpRunning=0, NULL=-20, \result=0, tmp=1, retValue_acc=1, NULL=0, \result=1, NULL=-7, NULL=-15, retValue_acc=1, NULL=0, tmp=1, retValue_acc=0, NULL=-22, tmp=1, tmp___2=54, NULL=-11, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=-21, NULL=-4, head=0, NULL=0, tmp=0, NULL=-1, NULL=0, NULL=0, NULL=-18, NULL=0, NULL=-10, NULL=-6} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L310] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L573] int cleanupTimeShifts = 4; [L742] int pumpRunning = 0; [L743] int systemActive = 1; [L649] int retValue_acc ; [L650] int tmp ; [L536] int retValue_acc ; [L539] retValue_acc = 1 [L540] return (retValue_acc); [L656] tmp = valid_product() [L658] COND TRUE \read(tmp) [L674] int splverifierCounter ; [L675] int tmp ; [L676] int tmp___0 ; [L677] int tmp___1 ; [L678] int tmp___2 ; [L681] splverifierCounter = 0 Loop: [L683] COND TRUE 1 [L685] COND TRUE splverifierCounter < 4 [L691] tmp = __VERIFIER_nondet_int() [L693] COND FALSE !(\read(tmp)) [L701] tmp___0 = __VERIFIER_nondet_int() [L703] COND FALSE !(\read(tmp___0)) [L711] tmp___2 = __VERIFIER_nondet_int() [L713] COND TRUE \read(tmp___2) [L915] systemActive = 1 [L749] COND FALSE !(\read(pumpRunning)) [L756] COND TRUE \read(systemActive) [L778] int tmp ; [L781] COND TRUE ! pumpRunning [L893] int retValue_acc ; [L894] int tmp ; [L895] int tmp___0 ; [L127] int retValue_acc ; [L130] COND TRUE waterLevel < 2 [L131] retValue_acc = 1 [L132] return (retValue_acc); [L899] tmp = isHighWaterSensorDry() [L901] COND TRUE \read(tmp) [L902] tmp___0 = 0 [L906] retValue_acc = tmp___0 [L907] return (retValue_acc); [L783] tmp = isHighWaterLevel() [L785] COND FALSE !(\read(tmp)) [L548] int tmp ; [L549] int tmp___0 ; [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); [L553] tmp = getWaterLevel() [L555] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...