./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2276fb64-308c-437d-96f0-52c440e7c98d/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_2276fb64-308c-437d-96f0-52c440e7c98d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2276fb64-308c-437d-96f0-52c440e7c98d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2276fb64-308c-437d-96f0-52c440e7c98d/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2276fb64-308c-437d-96f0-52c440e7c98d/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2276fb64-308c-437d-96f0-52c440e7c98d/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 38d3472c1eb8f4a8d30b3059a3484ecd66f7fba4 ..................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.25-f470102 [2019-12-07 17:09:05,002 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 17:09:05,003 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 17:09:05,011 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 17:09:05,011 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 17:09:05,012 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 17:09:05,013 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 17:09:05,014 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 17:09:05,015 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 17:09:05,016 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 17:09:05,016 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 17:09:05,017 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 17:09:05,017 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 17:09:05,018 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 17:09:05,019 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 17:09:05,019 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 17:09:05,020 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 17:09:05,020 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 17:09:05,022 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 17:09:05,023 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 17:09:05,024 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 17:09:05,025 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 17:09:05,026 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 17:09:05,026 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 17:09:05,028 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 17:09:05,028 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 17:09:05,028 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 17:09:05,029 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 17:09:05,029 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 17:09:05,030 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 17:09:05,030 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 17:09:05,030 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 17:09:05,031 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 17:09:05,031 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 17:09:05,032 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 17:09:05,032 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 17:09:05,032 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 17:09:05,032 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 17:09:05,032 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 17:09:05,033 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 17:09:05,033 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 17:09:05,034 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2276fb64-308c-437d-96f0-52c440e7c98d/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 17:09:05,045 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 17:09:05,045 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 17:09:05,046 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 17:09:05,046 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 17:09:05,046 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 17:09:05,047 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 17:09:05,047 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 17:09:05,047 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 17:09:05,047 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 17:09:05,047 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 17:09:05,047 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 17:09:05,047 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 17:09:05,047 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 17:09:05,048 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 17:09:05,048 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 17:09:05,048 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 17:09:05,048 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 17:09:05,048 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 17:09:05,048 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 17:09:05,048 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 17:09:05,048 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 17:09:05,049 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 17:09:05,049 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 17:09:05,049 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 17:09:05,049 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 17:09:05,049 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 17:09:05,049 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 17:09:05,049 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 17:09:05,049 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 17:09:05,049 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 17:09:05,049 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 17:09:05,050 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 17:09:05,050 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 17:09:05,050 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_2276fb64-308c-437d-96f0-52c440e7c98d/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 -> 38d3472c1eb8f4a8d30b3059a3484ecd66f7fba4 [2019-12-07 17:09:05,148 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 17:09:05,156 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 17:09:05,159 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 17:09:05,160 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 17:09:05,160 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 17:09:05,161 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2276fb64-308c-437d-96f0-52c440e7c98d/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c [2019-12-07 17:09:05,204 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2276fb64-308c-437d-96f0-52c440e7c98d/bin/uautomizer/data/965c42231/1162963f6d664e16afdf234dfab2dd9f/FLAGd8fbf711c [2019-12-07 17:09:05,667 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 17:09:05,668 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2276fb64-308c-437d-96f0-52c440e7c98d/sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c [2019-12-07 17:09:05,677 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2276fb64-308c-437d-96f0-52c440e7c98d/bin/uautomizer/data/965c42231/1162963f6d664e16afdf234dfab2dd9f/FLAGd8fbf711c [2019-12-07 17:09:06,182 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2276fb64-308c-437d-96f0-52c440e7c98d/bin/uautomizer/data/965c42231/1162963f6d664e16afdf234dfab2dd9f [2019-12-07 17:09:06,184 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 17:09:06,185 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 17:09:06,186 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 17:09:06,186 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 17:09:06,188 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 17:09:06,189 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:09:06" (1/1) ... [2019-12-07 17:09:06,190 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71f2f420 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:09:06, skipping insertion in model container [2019-12-07 17:09:06,190 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:09:06" (1/1) ... [2019-12-07 17:09:06,195 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 17:09:06,221 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 17:09:06,422 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:09:06,430 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 17:09:06,476 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:09:06,498 INFO L208 MainTranslator]: Completed translation [2019-12-07 17:09:06,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:09:06 WrapperNode [2019-12-07 17:09:06,498 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 17:09:06,499 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 17:09:06,499 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 17:09:06,499 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 17:09:06,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:09:06" (1/1) ... [2019-12-07 17:09:06,516 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:09:06" (1/1) ... [2019-12-07 17:09:06,542 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 17:09:06,542 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 17:09:06,542 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 17:09:06,542 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 17:09:06,548 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:09:06" (1/1) ... [2019-12-07 17:09:06,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:09:06" (1/1) ... [2019-12-07 17:09:06,552 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:09:06" (1/1) ... [2019-12-07 17:09:06,552 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:09:06" (1/1) ... [2019-12-07 17:09:06,561 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:09:06" (1/1) ... [2019-12-07 17:09:06,566 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:09:06" (1/1) ... [2019-12-07 17:09:06,568 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:09:06" (1/1) ... [2019-12-07 17:09:06,571 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 17:09:06,572 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 17:09:06,572 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 17:09:06,572 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 17:09:06,573 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:09:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2276fb64-308c-437d-96f0-52c440e7c98d/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 [2019-12-07 17:09:06,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 17:09:06,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-07 17:09:06,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 17:09:06,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 17:09:07,041 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 17:09:07,041 INFO L287 CfgBuilder]: Removed 162 assume(true) statements. [2019-12-07 17:09:07,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:09:07 BoogieIcfgContainer [2019-12-07 17:09:07,042 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 17:09:07,042 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 17:09:07,042 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 17:09:07,045 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 17:09:07,045 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 17:09:07,046 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 05:09:06" (1/3) ... [2019-12-07 17:09:07,046 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@423ec3a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 05:09:07, skipping insertion in model container [2019-12-07 17:09:07,046 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 17:09:07,046 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:09:06" (2/3) ... [2019-12-07 17:09:07,047 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@423ec3a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 05:09:07, skipping insertion in model container [2019-12-07 17:09:07,047 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 17:09:07,047 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:09:07" (3/3) ... [2019-12-07 17:09:07,048 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product51.cil.c [2019-12-07 17:09:07,076 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 17:09:07,076 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 17:09:07,076 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 17:09:07,076 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 17:09:07,076 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 17:09:07,076 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 17:09:07,076 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 17:09:07,076 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 17:09:07,088 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 120 states. [2019-12-07 17:09:07,106 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2019-12-07 17:09:07,106 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:09:07,106 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:09:07,111 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:09:07,112 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:09:07,112 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 17:09:07,112 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 120 states. [2019-12-07 17:09:07,117 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2019-12-07 17:09:07,117 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:09:07,117 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:09:07,117 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:09:07,118 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:09:07,121 INFO L794 eck$LassoCheckResult]: Stem: 85#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(110, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 3 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(80, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(117, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(109, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(112, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(32, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string22.base, #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 1 + #t~string22.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(13);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(77, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(101, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(116, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(104, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string33.base, #t~string33.offset, 1);call write~init~int(82, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(73, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(84, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 4 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(75, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 9#L-1true havoc main_#res;havoc main_#t~ret38, main_~retValue_acc~10, main_~tmp~6;havoc main_~retValue_acc~10;havoc main_~tmp~6; 100#L399true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 103#L407true main_#t~ret38 := valid_product_#res;main_~tmp~6 := main_#t~ret38;havoc main_#t~ret38; 3#L599true assume 0 != main_~tmp~6; 107#L575true ~methAndRunningLastTime~0 := 0; 106#L341true 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; 108#L352-1true [2019-12-07 17:09:07,121 INFO L796 eck$LassoCheckResult]: Loop: 108#L352-1true assume !false; 28#L56true assume test_~splverifierCounter~0 < 4; 122#L57true test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 11#L65true assume !(0 != test_~tmp~0); 10#L65-1true test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 45#L75true assume !(0 != test_~tmp___0~0); 43#L75-1true test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 110#L85true assume 0 != test_~tmp___2~0; 55#L91-1true assume !(0 != ~pumpRunning~0); 112#L129true assume !(0 != ~systemActive~0); 18#L136true havoc __utac_acc__Specification2_spec__2_#t~ret25, __utac_acc__Specification2_spec__2_#t~ret26, __utac_acc__Specification2_spec__2_~tmp~5, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~5;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 117#L456true __utac_acc__Specification2_spec__2_#t~ret25 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~5 := __utac_acc__Specification2_spec__2_#t~ret25;havoc __utac_acc__Specification2_spec__2_#t~ret25; 105#L352true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5);~methAndRunningLastTime~0 := 0; 108#L352-1true [2019-12-07 17:09:07,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:09:07,125 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-12-07 17:09:07,131 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:09:07,131 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974968930] [2019-12-07 17:09:07,131 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:09:07,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:09:07,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:09:07,336 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:09:07,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:09:07,337 INFO L82 PathProgramCache]: Analyzing trace with hash 13096595, now seen corresponding path program 1 times [2019-12-07 17:09:07,337 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:09:07,338 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435689105] [2019-12-07 17:09:07,338 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:09:07,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:09:07,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:09:07,349 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:09:07,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:09:07,350 INFO L82 PathProgramCache]: Analyzing trace with hash 846393101, now seen corresponding path program 1 times [2019-12-07 17:09:07,350 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:09:07,350 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410501708] [2019-12-07 17:09:07,350 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:09:07,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:09:07,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:09:07,433 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410501708] [2019-12-07 17:09:07,434 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:09:07,434 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 17:09:07,434 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952360050] [2019-12-07 17:09:07,488 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:09:07,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 17:09:07,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-12-07 17:09:07,500 INFO L87 Difference]: Start difference. First operand 120 states. Second operand 6 states. [2019-12-07 17:09:07,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:09:07,639 INFO L93 Difference]: Finished difference Result 286 states and 415 transitions. [2019-12-07 17:09:07,639 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 17:09:07,640 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 286 states and 415 transitions. [2019-12-07 17:09:07,646 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 183 [2019-12-07 17:09:07,652 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 286 states to 265 states and 394 transitions. [2019-12-07 17:09:07,653 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 265 [2019-12-07 17:09:07,654 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 265 [2019-12-07 17:09:07,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 265 states and 394 transitions. [2019-12-07 17:09:07,656 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 17:09:07,657 INFO L688 BuchiCegarLoop]: Abstraction has 265 states and 394 transitions. [2019-12-07 17:09:07,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states and 394 transitions. [2019-12-07 17:09:07,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 157. [2019-12-07 17:09:07,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2019-12-07 17:09:07,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 232 transitions. [2019-12-07 17:09:07,686 INFO L711 BuchiCegarLoop]: Abstraction has 157 states and 232 transitions. [2019-12-07 17:09:07,686 INFO L591 BuchiCegarLoop]: Abstraction has 157 states and 232 transitions. [2019-12-07 17:09:07,687 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 17:09:07,687 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 157 states and 232 transitions. [2019-12-07 17:09:07,689 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 108 [2019-12-07 17:09:07,689 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:09:07,689 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:09:07,689 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:09:07,690 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:09:07,690 INFO L794 eck$LassoCheckResult]: Stem: 528#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(110, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 3 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(80, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(117, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(109, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(112, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(32, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string22.base, #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 1 + #t~string22.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(13);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(77, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(101, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(116, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(104, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string33.base, #t~string33.offset, 1);call write~init~int(82, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(73, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(84, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 4 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(75, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 436#L-1 havoc main_#res;havoc main_#t~ret38, main_~retValue_acc~10, main_~tmp~6;havoc main_~retValue_acc~10;havoc main_~tmp~6; 437#L399 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 535#L407 main_#t~ret38 := valid_product_#res;main_~tmp~6 := main_#t~ret38;havoc main_#t~ret38; 424#L599 assume 0 != main_~tmp~6; 425#L575 ~methAndRunningLastTime~0 := 0; 537#L341 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; 459#L352-1 [2019-12-07 17:09:07,690 INFO L796 eck$LassoCheckResult]: Loop: 459#L352-1 assume !false; 470#L56 assume test_~splverifierCounter~0 < 4; 471#L57 test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 440#L65 assume !(0 != test_~tmp~0); 438#L65-1 test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 439#L75 assume !(0 != test_~tmp___0~0); 493#L75-1 test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 494#L85 assume 0 != test_~tmp___2~0; 503#L91-1 assume !(0 != ~pumpRunning~0); 477#L129 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret5, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 520#L187 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret4, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 454#L161-1 assume !(0 == ~pumpRunning~0); 449#L136 havoc __utac_acc__Specification2_spec__2_#t~ret25, __utac_acc__Specification2_spec__2_#t~ret26, __utac_acc__Specification2_spec__2_~tmp~5, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~5;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 450#L456 __utac_acc__Specification2_spec__2_#t~ret25 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~5 := __utac_acc__Specification2_spec__2_#t~ret25;havoc __utac_acc__Specification2_spec__2_#t~ret25; 536#L352 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5);~methAndRunningLastTime~0 := 0; 459#L352-1 [2019-12-07 17:09:07,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:09:07,690 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-12-07 17:09:07,691 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:09:07,691 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482104132] [2019-12-07 17:09:07,691 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:09:07,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:09:07,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:09:07,745 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:09:07,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:09:07,746 INFO L82 PathProgramCache]: Analyzing trace with hash 1355202001, now seen corresponding path program 1 times [2019-12-07 17:09:07,746 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:09:07,746 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437478274] [2019-12-07 17:09:07,746 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:09:07,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:09:07,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:09:07,754 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437478274] [2019-12-07 17:09:07,754 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:09:07,754 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 17:09:07,755 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998807844] [2019-12-07 17:09:07,755 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 17:09:07,755 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:09:07,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 17:09:07,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 17:09:07,755 INFO L87 Difference]: Start difference. First operand 157 states and 232 transitions. cyclomatic complexity: 78 Second operand 3 states. [2019-12-07 17:09:07,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:09:07,816 INFO L93 Difference]: Finished difference Result 199 states and 278 transitions. [2019-12-07 17:09:07,816 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 17:09:07,817 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 199 states and 278 transitions. [2019-12-07 17:09:07,818 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 140 [2019-12-07 17:09:07,820 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 199 states to 199 states and 278 transitions. [2019-12-07 17:09:07,820 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 199 [2019-12-07 17:09:07,821 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 199 [2019-12-07 17:09:07,821 INFO L73 IsDeterministic]: Start isDeterministic. Operand 199 states and 278 transitions. [2019-12-07 17:09:07,822 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 17:09:07,822 INFO L688 BuchiCegarLoop]: Abstraction has 199 states and 278 transitions. [2019-12-07 17:09:07,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states and 278 transitions. [2019-12-07 17:09:07,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2019-12-07 17:09:07,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2019-12-07 17:09:07,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 278 transitions. [2019-12-07 17:09:07,830 INFO L711 BuchiCegarLoop]: Abstraction has 199 states and 278 transitions. [2019-12-07 17:09:07,830 INFO L591 BuchiCegarLoop]: Abstraction has 199 states and 278 transitions. [2019-12-07 17:09:07,830 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 17:09:07,830 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 199 states and 278 transitions. [2019-12-07 17:09:07,831 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 140 [2019-12-07 17:09:07,831 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:09:07,832 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:09:07,832 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:09:07,832 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:09:07,832 INFO L794 eck$LassoCheckResult]: Stem: 896#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(110, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 3 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(80, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(117, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(109, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(112, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(32, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string22.base, #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 1 + #t~string22.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(13);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(77, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(101, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(116, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(104, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string33.base, #t~string33.offset, 1);call write~init~int(82, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(73, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(84, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 4 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(75, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 797#L-1 havoc main_#res;havoc main_#t~ret38, main_~retValue_acc~10, main_~tmp~6;havoc main_~retValue_acc~10;havoc main_~tmp~6; 798#L399 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 904#L407 main_#t~ret38 := valid_product_#res;main_~tmp~6 := main_#t~ret38;havoc main_#t~ret38; 786#L599 assume 0 != main_~tmp~6; 787#L575 ~methAndRunningLastTime~0 := 0; 906#L341 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; 907#L352-1 [2019-12-07 17:09:07,833 INFO L796 eck$LassoCheckResult]: Loop: 907#L352-1 assume !false; 964#L56 assume test_~splverifierCounter~0 < 4; 963#L57 test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 962#L65 assume !(0 != test_~tmp~0); 960#L65-1 test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 959#L75 assume !(0 != test_~tmp___0~0); 957#L75-1 test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 909#L85 assume 0 != test_~tmp___2~0; 875#L91-1 assume !(0 != ~pumpRunning~0); 935#L129 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret5, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 888#L187 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret4, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 818#L161-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret23, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 819#L496-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 869#L501-1 isHighWaterLevel_#t~ret23 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret23;havoc isHighWaterLevel_#t~ret23; 880#L289-3 assume 0 != isHighWaterLevel_~tmp~3;isHighWaterLevel_~tmp___0~1 := 0; 879#L289-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 849#L295-1 processEnvironment__wrappee__highWaterSensor_#t~ret4 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~1 := processEnvironment__wrappee__highWaterSensor_#t~ret4;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4; 850#L165-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1); 833#L136 havoc __utac_acc__Specification2_spec__2_#t~ret25, __utac_acc__Specification2_spec__2_#t~ret26, __utac_acc__Specification2_spec__2_~tmp~5, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~5;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 969#L456 __utac_acc__Specification2_spec__2_#t~ret25 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~5 := __utac_acc__Specification2_spec__2_#t~ret25;havoc __utac_acc__Specification2_spec__2_#t~ret25; 967#L352 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5);~methAndRunningLastTime~0 := 0; 907#L352-1 [2019-12-07 17:09:07,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:09:07,833 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-12-07 17:09:07,833 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:09:07,833 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94063725] [2019-12-07 17:09:07,833 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:09:07,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:09:07,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:09:07,883 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:09:07,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:09:07,883 INFO L82 PathProgramCache]: Analyzing trace with hash -803430243, now seen corresponding path program 1 times [2019-12-07 17:09:07,883 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:09:07,884 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448507264] [2019-12-07 17:09:07,884 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:09:07,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:09:07,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:09:07,893 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:09:07,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:09:07,894 INFO L82 PathProgramCache]: Analyzing trace with hash 969711383, now seen corresponding path program 1 times [2019-12-07 17:09:07,894 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:09:07,894 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389819139] [2019-12-07 17:09:07,894 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:09:07,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:09:07,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:09:07,946 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:09:34,550 WARN L192 SmtUtils]: Spent 26.46 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-12-07 17:09:47,387 WARN L192 SmtUtils]: Spent 12.83 s on a formula simplification that was a NOOP. DAG size: 402 [2019-12-07 17:09:47,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 05:09:47 BoogieIcfgContainer [2019-12-07 17:09:47,438 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 17:09:47,438 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 17:09:47,438 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 17:09:47,438 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 17:09:47,439 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:09:07" (3/4) ... [2019-12-07 17:09:47,441 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-12-07 17:09:47,485 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2276fb64-308c-437d-96f0-52c440e7c98d/bin/uautomizer/witness.graphml [2019-12-07 17:09:47,486 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 17:09:47,487 INFO L168 Benchmark]: Toolchain (without parser) took 41301.62 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.8 MB). Free memory was 939.8 MB in the beginning and 983.7 MB in the end (delta: -43.9 MB). Peak memory consumption was 58.9 MB. Max. memory is 11.5 GB. [2019-12-07 17:09:47,487 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 956.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:09:47,488 INFO L168 Benchmark]: CACSL2BoogieTranslator took 312.67 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.4 MB). Free memory was 934.4 MB in the beginning and 1.1 GB in the end (delta: -143.0 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-12-07 17:09:47,488 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.88 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 17:09:47,489 INFO L168 Benchmark]: Boogie Preprocessor took 29.65 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 17:09:47,489 INFO L168 Benchmark]: RCFGBuilder took 470.31 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 59.5 MB). Peak memory consumption was 59.5 MB. Max. memory is 11.5 GB. [2019-12-07 17:09:47,490 INFO L168 Benchmark]: BuchiAutomizer took 40395.77 ms. Allocated memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.4 MB). Free memory was 1.0 GB in the beginning and 985.7 MB in the end (delta: 21.4 MB). Peak memory consumption was 237.9 MB. Max. memory is 11.5 GB. [2019-12-07 17:09:47,490 INFO L168 Benchmark]: Witness Printer took 47.47 ms. Allocated memory is still 1.1 GB. Free memory was 985.7 MB in the beginning and 983.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 11.5 GB. [2019-12-07 17:09:47,492 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 956.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 312.67 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.4 MB). Free memory was 934.4 MB in the beginning and 1.1 GB in the end (delta: -143.0 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 42.88 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.65 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 470.31 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 59.5 MB). Peak memory consumption was 59.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 40395.77 ms. Allocated memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.4 MB). Free memory was 1.0 GB in the beginning and 985.7 MB in the end (delta: 21.4 MB). Peak memory consumption was 237.9 MB. Max. memory is 11.5 GB. * Witness Printer took 47.47 ms. Allocated memory is still 1.1 GB. Free memory was 985.7 MB in the beginning and 983.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 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 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 199 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 40.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 40.0s. Construction of modules took 0.1s. 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, 108 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 199 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 337 SDtfs, 776 SDslu, 836 SDs, 0 SdLazy, 73 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 55]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=5636} State at position 1 is {NULL=0, NULL=0, NULL=5659, NULL=5636, NULL=5641, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@266ee5ed=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57313bac=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6216a746=68, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6766d5ea=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3a33c8da=0, methaneLevelCritical=0, NULL=5660, NULL=5648, tmp___0=0, NULL=0, NULL=0, NULL=5655, retValue_acc=0, NULL=0, NULL=5647, NULL=0, tmp___1=0, NULL=5657, NULL=0, NULL=5645, cleanupTimeShifts=4, tmp=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5266d3d2=0, NULL=5654, NULL=5639, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=5643, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@282c48ba=0, NULL=5644, retValue_acc=0, NULL=0, NULL=5658, \result=0, NULL=0, tmp___0=0, NULL=5649, NULL=0, retValue_acc=0, NULL=0, \result=1, NULL=5637, head=0, pumpRunning=0, retValue_acc=1, NULL=5638, \result=0, NULL=5653, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, tmp=1, NULL=5656, retValue_acc=1, \result=1, NULL=5646, NULL=5651, NULL=5650, NULL=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f87cb08=0, tmp___0=0, tmp___2=68, splverifierCounter=0, NULL=0, methAndRunningLastTime=0, \result=0, NULL=5642, NULL=5661, tmp=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4d1d7082=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4d2ed174=0, NULL=0, NULL=5640, NULL=0, NULL=0, NULL=5652, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L121] int pumpRunning = 0; [L122] int systemActive = 1; [L335] int methAndRunningLastTime ; [L413] int waterLevel = 1; [L414] int methaneLevelCritical = 0; [L516] int cleanupTimeShifts = 4; [L791] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L590] int retValue_acc ; [L591] int tmp ; [L403] int retValue_acc ; [L406] retValue_acc = 1 [L407] return (retValue_acc); [L597] tmp = valid_product() [L599] COND TRUE \read(tmp) [L340] methAndRunningLastTime = 0 [L46] int splverifierCounter ; [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L50] int tmp___2 ; [L53] splverifierCounter = 0 Loop: [L55] COND TRUE 1 [L57] COND TRUE splverifierCounter < 4 [L63] tmp = __VERIFIER_nondet_int() [L65] COND FALSE !(\read(tmp)) [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___2) [L129] COND FALSE !(\read(pumpRunning)) [L136] COND TRUE \read(systemActive) [L184] int tmp ; [L187] COND FALSE !(\read(pumpRunning)) [L158] int tmp ; [L161] COND TRUE ! pumpRunning [L281] int retValue_acc ; [L282] int tmp ; [L283] int tmp___0 ; [L493] int retValue_acc ; [L496] COND TRUE waterLevel < 2 [L497] retValue_acc = 1 [L498] return (retValue_acc); [L287] tmp = isHighWaterSensorDry() [L289] COND TRUE \read(tmp) [L290] tmp___0 = 0 [L294] retValue_acc = tmp___0 [L295] return (retValue_acc); [L163] tmp = isHighWaterLevel() [L165] COND FALSE !(\read(tmp)) [L345] int tmp ; [L346] int tmp___0 ; [L452] int retValue_acc ; [L455] retValue_acc = methaneLevelCritical [L456] return (retValue_acc); [L350] tmp = isMethaneLevelCritical() [L352] COND FALSE !(\read(tmp)) [L368] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...