./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_1795a209-833c-40f4-a279-77c678dc039b/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_1795a209-833c-40f4-a279-77c678dc039b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1795a209-833c-40f4-a279-77c678dc039b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1795a209-833c-40f4-a279-77c678dc039b/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1795a209-833c-40f4-a279-77c678dc039b/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1795a209-833c-40f4-a279-77c678dc039b/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 35186e76d3512165346b803182d73298e94993df ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.24-6b5699a [2019-11-25 08:50:17,965 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:50:17,967 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:50:17,977 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:50:17,977 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:50:17,978 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:50:17,980 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:50:17,982 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:50:17,983 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:50:17,984 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:50:17,985 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:50:17,986 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:50:17,986 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:50:17,987 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:50:17,988 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:50:17,989 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:50:17,990 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:50:17,991 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:50:17,993 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:50:17,994 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:50:17,996 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:50:17,997 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:50:17,998 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:50:17,998 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:50:18,001 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:50:18,001 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:50:18,002 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:50:18,002 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:50:18,003 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:50:18,004 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:50:18,004 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:50:18,004 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:50:18,005 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:50:18,006 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:50:18,007 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:50:18,007 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:50:18,008 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:50:18,008 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:50:18,008 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:50:18,009 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:50:18,009 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:50:18,010 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1795a209-833c-40f4-a279-77c678dc039b/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-25 08:50:18,024 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:50:18,025 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:50:18,026 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:50:18,026 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:50:18,026 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:50:18,026 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-25 08:50:18,027 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-25 08:50:18,027 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-25 08:50:18,027 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-25 08:50:18,027 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-25 08:50:18,027 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-25 08:50:18,028 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:50:18,028 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:50:18,028 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:50:18,028 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:50:18,028 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:50:18,029 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:50:18,029 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-25 08:50:18,029 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-25 08:50:18,029 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-25 08:50:18,030 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:50:18,030 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:50:18,030 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-25 08:50:18,030 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:50:18,030 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-25 08:50:18,031 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:50:18,031 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:50:18,031 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-25 08:50:18,031 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:50:18,032 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:50:18,032 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-25 08:50:18,032 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-25 08:50:18,033 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_1795a209-833c-40f4-a279-77c678dc039b/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 -> 35186e76d3512165346b803182d73298e94993df [2019-11-25 08:50:18,192 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:50:18,208 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:50:18,212 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:50:18,219 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:50:18,219 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:50:18,220 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1795a209-833c-40f4-a279-77c678dc039b/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c [2019-11-25 08:50:18,272 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1795a209-833c-40f4-a279-77c678dc039b/bin/uautomizer/data/fc16a3e0a/812bb6e54fee45d69ffc600b24a9c35f/FLAGd94ae0b24 [2019-11-25 08:50:18,755 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:50:18,756 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1795a209-833c-40f4-a279-77c678dc039b/sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c [2019-11-25 08:50:18,769 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1795a209-833c-40f4-a279-77c678dc039b/bin/uautomizer/data/fc16a3e0a/812bb6e54fee45d69ffc600b24a9c35f/FLAGd94ae0b24 [2019-11-25 08:50:19,042 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1795a209-833c-40f4-a279-77c678dc039b/bin/uautomizer/data/fc16a3e0a/812bb6e54fee45d69ffc600b24a9c35f [2019-11-25 08:50:19,045 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:50:19,046 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:50:19,047 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:50:19,048 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:50:19,051 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:50:19,052 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:50:19" (1/1) ... [2019-11-25 08:50:19,055 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d6781b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:19, skipping insertion in model container [2019-11-25 08:50:19,056 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:50:19" (1/1) ... [2019-11-25 08:50:19,070 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:50:19,136 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:50:19,525 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:50:19,545 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:50:19,615 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:50:19,641 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:50:19,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:19 WrapperNode [2019-11-25 08:50:19,642 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:50:19,642 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:50:19,642 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:50:19,643 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:50:19,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:19" (1/1) ... [2019-11-25 08:50:19,668 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:19" (1/1) ... [2019-11-25 08:50:19,700 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:50:19,701 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:50:19,701 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:50:19,701 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:50:19,710 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:19" (1/1) ... [2019-11-25 08:50:19,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:19" (1/1) ... [2019-11-25 08:50:19,715 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:19" (1/1) ... [2019-11-25 08:50:19,716 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:19" (1/1) ... [2019-11-25 08:50:19,726 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:19" (1/1) ... [2019-11-25 08:50:19,733 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:19" (1/1) ... [2019-11-25 08:50:19,736 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:19" (1/1) ... [2019-11-25 08:50:19,740 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:50:19,741 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:50:19,741 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:50:19,741 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:50:19,742 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1795a209-833c-40f4-a279-77c678dc039b/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:50:19,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:50:19,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-25 08:50:19,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:50:19,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:50:20,517 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:50:20,517 INFO L284 CfgBuilder]: Removed 126 assume(true) statements. [2019-11-25 08:50:20,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:50:20 BoogieIcfgContainer [2019-11-25 08:50:20,518 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:50:20,519 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-25 08:50:20,519 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-25 08:50:20,522 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-25 08:50:20,523 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:50:20,523 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 08:50:19" (1/3) ... [2019-11-25 08:50:20,524 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@38e6509b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:50:20, skipping insertion in model container [2019-11-25 08:50:20,525 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:50:20,525 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:19" (2/3) ... [2019-11-25 08:50:20,525 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@38e6509b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:50:20, skipping insertion in model container [2019-11-25 08:50:20,525 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:50:20,526 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:50:20" (3/3) ... [2019-11-25 08:50:20,527 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product44.cil.c [2019-11-25 08:50:20,567 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-25 08:50:20,567 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-25 08:50:20,568 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-25 08:50:20,568 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:50:20,568 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:50:20,568 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-25 08:50:20,568 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:50:20,569 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-25 08:50:20,596 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 92 states. [2019-11-25 08:50:20,618 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 59 [2019-11-25 08:50:20,618 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:50:20,618 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:50:20,624 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-25 08:50:20,624 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:50:20,624 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-25 08:50:20,625 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 92 states. [2019-11-25 08:50:20,630 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 59 [2019-11-25 08:50:20,630 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:50:20,631 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:50:20,631 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-25 08:50:20,631 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:50:20,635 INFO L794 eck$LassoCheckResult]: Stem: 29#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(13);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string7.base, #t~string7.offset, 1);call write~init~int(77, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(101, #t~string7.base, 2 + #t~string7.offset, 1);call write~init~int(116, #t~string7.base, 3 + #t~string7.offset, 1);call write~init~int(104, #t~string7.base, 4 + #t~string7.offset, 1);call write~init~int(58, #t~string7.base, 5 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 6 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string9.base, #t~string9.offset, 1);call write~init~int(82, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(73, #t~string9.base, 2 + #t~string9.offset, 1);call write~init~int(84, #t~string9.base, 3 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 4 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(75, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 2 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string13.base, #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 1 + #t~string13.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(30);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(9);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(21);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(21);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(25);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(30);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(9);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(25);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(13);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(110, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 3 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string60.base, #t~string60.offset, 1);call write~init~int(80, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(117, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(109, #t~string60.base, 3 + #t~string60.offset, 1);call write~init~int(112, #t~string60.base, 4 + #t~string60.offset, 1);call write~init~int(58, #t~string60.base, 5 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 6 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string66.base, #t~string66.offset, 1);call write~init~int(32, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string68.base, #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 1 + #t~string68.offset, 1);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 10#L-1true havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 62#L301true 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; 81#L309true main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 90#L130true assume 0 != main_~tmp~0; 25#L103true havoc test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_#t~nondet73, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 91#L163-1true [2019-11-25 08:50:20,636 INFO L796 eck$LassoCheckResult]: Loop: 91#L163-1true assume !false; 43#L897true assume test_~splverifierCounter~0 < 4; 76#L898true test_~tmp~8 := test_#t~nondet70;havoc test_#t~nondet70; 9#L906true assume !(0 != test_~tmp~8); 83#L906-1true test_~tmp___0~2 := test_#t~nondet71;havoc test_#t~nondet71; 50#L916true assume !(0 != test_~tmp___0~2); 54#L916-1true test_~tmp___2~0 := test_#t~nondet72;havoc test_#t~nondet72; 27#L926true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 67#L934-1true assume !(0 != ~pumpRunning~0); 59#L700true assume !(0 != ~systemActive~0); 41#L707true havoc __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_#t~ret3, __utac_acc__Specification3_spec__1_~tmp~1, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~1;havoc isMethaneLevelCritical_~retValue_acc~1;isMethaneLevelCritical_~retValue_acc~1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~1; 66#L228-1true __utac_acc__Specification3_spec__1_#t~ret1 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~1 := __utac_acc__Specification3_spec__1_#t~ret1;havoc __utac_acc__Specification3_spec__1_#t~ret1; 8#L157true assume 0 != __utac_acc__Specification3_spec__1_~tmp~1; 91#L163-1true [2019-11-25 08:50:20,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:50:20,642 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-11-25 08:50:20,654 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:50:20,656 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892676484] [2019-11-25 08:50:20,656 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:50:20,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:50:20,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:50:20,995 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:50:20,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:50:20,996 INFO L82 PathProgramCache]: Analyzing trace with hash -1671648193, now seen corresponding path program 1 times [2019-11-25 08:50:20,996 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:50:20,997 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237578407] [2019-11-25 08:50:20,997 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:50:21,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:50:21,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:50:21,055 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237578407] [2019-11-25 08:50:21,056 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:50:21,056 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-25 08:50:21,056 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112917731] [2019-11-25 08:50:21,061 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-25 08:50:21,063 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:50:21,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:50:21,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:50:21,077 INFO L87 Difference]: Start difference. First operand 92 states. Second operand 3 states. [2019-11-25 08:50:21,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:50:21,154 INFO L93 Difference]: Finished difference Result 178 states and 252 transitions. [2019-11-25 08:50:21,155 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:50:21,157 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 178 states and 252 transitions. [2019-11-25 08:50:21,164 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 114 [2019-11-25 08:50:21,170 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 178 states to 164 states and 237 transitions. [2019-11-25 08:50:21,171 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 164 [2019-11-25 08:50:21,173 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 164 [2019-11-25 08:50:21,173 INFO L73 IsDeterministic]: Start isDeterministic. Operand 164 states and 237 transitions. [2019-11-25 08:50:21,175 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:50:21,175 INFO L688 BuchiCegarLoop]: Abstraction has 164 states and 237 transitions. [2019-11-25 08:50:21,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states and 237 transitions. [2019-11-25 08:50:21,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 162. [2019-11-25 08:50:21,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2019-11-25 08:50:21,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 234 transitions. [2019-11-25 08:50:21,215 INFO L711 BuchiCegarLoop]: Abstraction has 162 states and 234 transitions. [2019-11-25 08:50:21,216 INFO L591 BuchiCegarLoop]: Abstraction has 162 states and 234 transitions. [2019-11-25 08:50:21,216 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-25 08:50:21,216 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 162 states and 234 transitions. [2019-11-25 08:50:21,219 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 112 [2019-11-25 08:50:21,222 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:50:21,222 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:50:21,223 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-25 08:50:21,223 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:50:21,223 INFO L794 eck$LassoCheckResult]: Stem: 322#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(13);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string7.base, #t~string7.offset, 1);call write~init~int(77, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(101, #t~string7.base, 2 + #t~string7.offset, 1);call write~init~int(116, #t~string7.base, 3 + #t~string7.offset, 1);call write~init~int(104, #t~string7.base, 4 + #t~string7.offset, 1);call write~init~int(58, #t~string7.base, 5 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 6 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string9.base, #t~string9.offset, 1);call write~init~int(82, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(73, #t~string9.base, 2 + #t~string9.offset, 1);call write~init~int(84, #t~string9.base, 3 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 4 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(75, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 2 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string13.base, #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 1 + #t~string13.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(30);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(9);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(21);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(21);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(25);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(30);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(9);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(25);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(13);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(110, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 3 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string60.base, #t~string60.offset, 1);call write~init~int(80, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(117, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(109, #t~string60.base, 3 + #t~string60.offset, 1);call write~init~int(112, #t~string60.base, 4 + #t~string60.offset, 1);call write~init~int(58, #t~string60.base, 5 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 6 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string66.base, #t~string66.offset, 1);call write~init~int(32, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string68.base, #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 1 + #t~string68.offset, 1);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 294#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 295#L301 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; 358#L309 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 369#L130 assume 0 != main_~tmp~0; 313#L103 havoc test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_#t~nondet73, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 289#L163-1 [2019-11-25 08:50:21,224 INFO L796 eck$LassoCheckResult]: Loop: 289#L163-1 assume !false; 342#L897 assume test_~splverifierCounter~0 < 4; 343#L898 test_~tmp~8 := test_#t~nondet70;havoc test_#t~nondet70; 291#L906 assume !(0 != test_~tmp~8); 293#L906-1 test_~tmp___0~2 := test_#t~nondet71;havoc test_#t~nondet71; 350#L916 assume !(0 != test_~tmp___0~2); 300#L916-1 test_~tmp___2~0 := test_#t~nondet72;havoc test_#t~nondet72; 319#L926 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 320#L934-1 assume !(0 != ~pumpRunning~0); 352#L700 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret50, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 323#L732 assume !(0 == ~pumpRunning~0); 325#L707 havoc __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_#t~ret3, __utac_acc__Specification3_spec__1_~tmp~1, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~1;havoc isMethaneLevelCritical_~retValue_acc~1;isMethaneLevelCritical_~retValue_acc~1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~1; 339#L228-1 __utac_acc__Specification3_spec__1_#t~ret1 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~1 := __utac_acc__Specification3_spec__1_#t~ret1;havoc __utac_acc__Specification3_spec__1_#t~ret1; 288#L157 assume 0 != __utac_acc__Specification3_spec__1_~tmp~1; 289#L163-1 [2019-11-25 08:50:21,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:50:21,224 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-11-25 08:50:21,224 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:50:21,224 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539681465] [2019-11-25 08:50:21,225 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:50:21,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:50:21,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:50:21,329 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:50:21,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:50:21,330 INFO L82 PathProgramCache]: Analyzing trace with hash -323255282, now seen corresponding path program 1 times [2019-11-25 08:50:21,330 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:50:21,331 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355530205] [2019-11-25 08:50:21,331 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:50:21,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:50:21,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:50:21,348 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355530205] [2019-11-25 08:50:21,349 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:50:21,349 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-25 08:50:21,349 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580622198] [2019-11-25 08:50:21,349 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-25 08:50:21,350 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:50:21,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:50:21,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:50:21,350 INFO L87 Difference]: Start difference. First operand 162 states and 234 transitions. cyclomatic complexity: 75 Second operand 3 states. [2019-11-25 08:50:21,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:50:21,446 INFO L93 Difference]: Finished difference Result 257 states and 358 transitions. [2019-11-25 08:50:21,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:50:21,447 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 257 states and 358 transitions. [2019-11-25 08:50:21,451 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 183 [2019-11-25 08:50:21,456 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 257 states to 257 states and 358 transitions. [2019-11-25 08:50:21,456 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 257 [2019-11-25 08:50:21,457 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 257 [2019-11-25 08:50:21,457 INFO L73 IsDeterministic]: Start isDeterministic. Operand 257 states and 358 transitions. [2019-11-25 08:50:21,459 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:50:21,459 INFO L688 BuchiCegarLoop]: Abstraction has 257 states and 358 transitions. [2019-11-25 08:50:21,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states and 358 transitions. [2019-11-25 08:50:21,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 257. [2019-11-25 08:50:21,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2019-11-25 08:50:21,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 358 transitions. [2019-11-25 08:50:21,486 INFO L711 BuchiCegarLoop]: Abstraction has 257 states and 358 transitions. [2019-11-25 08:50:21,486 INFO L591 BuchiCegarLoop]: Abstraction has 257 states and 358 transitions. [2019-11-25 08:50:21,494 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-25 08:50:21,495 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 257 states and 358 transitions. [2019-11-25 08:50:21,497 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 183 [2019-11-25 08:50:21,499 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:50:21,499 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:50:21,501 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-25 08:50:21,501 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] [2019-11-25 08:50:21,502 INFO L794 eck$LassoCheckResult]: Stem: 748#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(13);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string7.base, #t~string7.offset, 1);call write~init~int(77, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(101, #t~string7.base, 2 + #t~string7.offset, 1);call write~init~int(116, #t~string7.base, 3 + #t~string7.offset, 1);call write~init~int(104, #t~string7.base, 4 + #t~string7.offset, 1);call write~init~int(58, #t~string7.base, 5 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 6 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string9.base, #t~string9.offset, 1);call write~init~int(82, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(73, #t~string9.base, 2 + #t~string9.offset, 1);call write~init~int(84, #t~string9.base, 3 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 4 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(75, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 2 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string13.base, #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 1 + #t~string13.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(30);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(9);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(21);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(21);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(25);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(30);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(9);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(25);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(13);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(110, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 3 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string60.base, #t~string60.offset, 1);call write~init~int(80, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(117, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(109, #t~string60.base, 3 + #t~string60.offset, 1);call write~init~int(112, #t~string60.base, 4 + #t~string60.offset, 1);call write~init~int(58, #t~string60.base, 5 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 6 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string66.base, #t~string66.offset, 1);call write~init~int(32, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string68.base, #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 1 + #t~string68.offset, 1);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 719#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 720#L301 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; 790#L309 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 804#L130 assume 0 != main_~tmp~0; 738#L103 havoc test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_#t~nondet73, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 739#L163-1 [2019-11-25 08:50:21,502 INFO L796 eck$LassoCheckResult]: Loop: 739#L163-1 assume !false; 854#L897 assume test_~splverifierCounter~0 < 4; 853#L898 test_~tmp~8 := test_#t~nondet70;havoc test_#t~nondet70; 852#L906 assume !(0 != test_~tmp~8); 850#L906-1 test_~tmp___0~2 := test_#t~nondet71;havoc test_#t~nondet71; 849#L916 assume !(0 != test_~tmp___0~2); 846#L916-1 test_~tmp___2~0 := test_#t~nondet72;havoc test_#t~nondet72; 845#L926 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 743#L934-1 assume !(0 != ~pumpRunning~0); 789#L700 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret50, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 750#L732 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret69, isHighWaterLevel_~retValue_acc~11, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~11;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~3;havoc isHighWaterSensorDry_~retValue_acc~3; 751#L268 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~3 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~3; 786#L273 isHighWaterLevel_#t~ret69 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret69;havoc isHighWaterLevel_#t~ret69; 721#L852 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 722#L852-2 isHighWaterLevel_~retValue_acc~11 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~11; 723#L858 processEnvironment_#t~ret50 := isHighWaterLevel_#res;processEnvironment_~tmp~5 := processEnvironment_#t~ret50;havoc processEnvironment_#t~ret50; 809#L736 assume !(0 != processEnvironment_~tmp~5); 840#L707 havoc __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_#t~ret3, __utac_acc__Specification3_spec__1_~tmp~1, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~1;havoc isMethaneLevelCritical_~retValue_acc~1;isMethaneLevelCritical_~retValue_acc~1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~1; 841#L228-1 __utac_acc__Specification3_spec__1_#t~ret1 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~1 := __utac_acc__Specification3_spec__1_#t~ret1;havoc __utac_acc__Specification3_spec__1_#t~ret1; 858#L157 assume 0 != __utac_acc__Specification3_spec__1_~tmp~1; 739#L163-1 [2019-11-25 08:50:21,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:50:21,503 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-11-25 08:50:21,503 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:50:21,504 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769173009] [2019-11-25 08:50:21,504 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:50:21,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:50:21,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:50:21,667 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:50:21,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:50:21,668 INFO L82 PathProgramCache]: Analyzing trace with hash -1551152038, now seen corresponding path program 1 times [2019-11-25 08:50:21,668 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:50:21,668 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991776578] [2019-11-25 08:50:21,669 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:50:21,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:50:21,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:50:21,685 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:50:21,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:50:21,686 INFO L82 PathProgramCache]: Analyzing trace with hash -1536440064, now seen corresponding path program 1 times [2019-11-25 08:50:21,686 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:50:21,686 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173903619] [2019-11-25 08:50:21,686 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:50:21,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:50:21,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:50:21,801 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173903619] [2019-11-25 08:50:21,802 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:50:21,802 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-25 08:50:21,802 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664784654] [2019-11-25 08:50:21,956 WARN L192 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2019-11-25 08:50:22,046 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:50:22,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-25 08:50:22,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:50:22,047 INFO L87 Difference]: Start difference. First operand 257 states and 358 transitions. cyclomatic complexity: 104 Second operand 5 states. [2019-11-25 08:50:22,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:50:22,282 INFO L93 Difference]: Finished difference Result 856 states and 1198 transitions. [2019-11-25 08:50:22,283 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-25 08:50:22,283 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 856 states and 1198 transitions. [2019-11-25 08:50:22,294 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 646 [2019-11-25 08:50:22,302 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 856 states to 856 states and 1198 transitions. [2019-11-25 08:50:22,303 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 856 [2019-11-25 08:50:22,304 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 856 [2019-11-25 08:50:22,304 INFO L73 IsDeterministic]: Start isDeterministic. Operand 856 states and 1198 transitions. [2019-11-25 08:50:22,310 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:50:22,310 INFO L688 BuchiCegarLoop]: Abstraction has 856 states and 1198 transitions. [2019-11-25 08:50:22,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states and 1198 transitions. [2019-11-25 08:50:22,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 508. [2019-11-25 08:50:22,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 508 states. [2019-11-25 08:50:22,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 694 transitions. [2019-11-25 08:50:22,353 INFO L711 BuchiCegarLoop]: Abstraction has 508 states and 694 transitions. [2019-11-25 08:50:22,353 INFO L591 BuchiCegarLoop]: Abstraction has 508 states and 694 transitions. [2019-11-25 08:50:22,353 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-25 08:50:22,354 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 508 states and 694 transitions. [2019-11-25 08:50:22,357 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 366 [2019-11-25 08:50:22,358 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:50:22,358 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:50:22,359 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-25 08:50:22,360 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:50:22,361 INFO L794 eck$LassoCheckResult]: Stem: 1878#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(13);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string7.base, #t~string7.offset, 1);call write~init~int(77, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(101, #t~string7.base, 2 + #t~string7.offset, 1);call write~init~int(116, #t~string7.base, 3 + #t~string7.offset, 1);call write~init~int(104, #t~string7.base, 4 + #t~string7.offset, 1);call write~init~int(58, #t~string7.base, 5 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 6 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string9.base, #t~string9.offset, 1);call write~init~int(82, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(73, #t~string9.base, 2 + #t~string9.offset, 1);call write~init~int(84, #t~string9.base, 3 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 4 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(75, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 2 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string13.base, #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 1 + #t~string13.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(30);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(9);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(21);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(21);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(25);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(30);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(9);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(25);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(13);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(110, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 3 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string60.base, #t~string60.offset, 1);call write~init~int(80, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(117, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(109, #t~string60.base, 3 + #t~string60.offset, 1);call write~init~int(112, #t~string60.base, 4 + #t~string60.offset, 1);call write~init~int(58, #t~string60.base, 5 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 6 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string66.base, #t~string66.offset, 1);call write~init~int(32, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string68.base, #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 1 + #t~string68.offset, 1);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 1848#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 1849#L301 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; 1926#L309 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 1943#L130 assume 0 != main_~tmp~0; 1868#L103 havoc test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_#t~nondet73, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1869#L163-1 [2019-11-25 08:50:22,361 INFO L796 eck$LassoCheckResult]: Loop: 1869#L163-1 assume !false; 2115#L897 assume test_~splverifierCounter~0 < 4; 2114#L898 test_~tmp~8 := test_#t~nondet70;havoc test_#t~nondet70; 2113#L906 assume !(0 != test_~tmp~8); 2111#L906-1 test_~tmp___0~2 := test_#t~nondet71;havoc test_#t~nondet71; 2109#L916 assume !(0 != test_~tmp___0~2); 2110#L916-1 test_~tmp___2~0 := test_#t~nondet72;havoc test_#t~nondet72; 2108#L926 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 2078#L934-1 assume !(0 != ~pumpRunning~0); 2053#L700 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret50, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 2076#L732 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret69, isHighWaterLevel_~retValue_acc~11, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~11;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~3;havoc isHighWaterSensorDry_~retValue_acc~3; 2037#L268 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~3 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~3; 2067#L273 isHighWaterLevel_#t~ret69 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret69;havoc isHighWaterLevel_#t~ret69; 2054#L852 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 2048#L852-2 isHighWaterLevel_~retValue_acc~11 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~11; 2042#L858 processEnvironment_#t~ret50 := isHighWaterLevel_#res;processEnvironment_~tmp~5 := processEnvironment_#t~ret50;havoc processEnvironment_#t~ret50; 2033#L736 assume !(0 != processEnvironment_~tmp~5); 2034#L707 havoc __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_#t~ret3, __utac_acc__Specification3_spec__1_~tmp~1, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~1;havoc isMethaneLevelCritical_~retValue_acc~1;isMethaneLevelCritical_~retValue_acc~1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~1; 2121#L228-1 __utac_acc__Specification3_spec__1_#t~ret1 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~1 := __utac_acc__Specification3_spec__1_#t~ret1;havoc __utac_acc__Specification3_spec__1_#t~ret1; 2120#L157 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~1);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~2;havoc getWaterLevel_~retValue_acc~2;getWaterLevel_~retValue_acc~2 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~2; 2119#L260 __utac_acc__Specification3_spec__1_#t~ret2 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret2;havoc __utac_acc__Specification3_spec__1_#t~ret2; 2116#L163 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0); 1869#L163-1 [2019-11-25 08:50:22,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:50:22,362 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 4 times [2019-11-25 08:50:22,362 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:50:22,363 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388335290] [2019-11-25 08:50:22,363 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:50:22,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:50:22,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:50:22,469 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:50:22,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:50:22,470 INFO L82 PathProgramCache]: Analyzing trace with hash -303450068, now seen corresponding path program 1 times [2019-11-25 08:50:22,471 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:50:22,471 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957052273] [2019-11-25 08:50:22,471 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:50:22,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:50:22,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:50:22,490 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:50:22,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:50:22,491 INFO L82 PathProgramCache]: Analyzing trace with hash 949855058, now seen corresponding path program 1 times [2019-11-25 08:50:22,491 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:50:22,491 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811444175] [2019-11-25 08:50:22,491 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:50:22,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:50:22,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:50:22,625 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:50:22,795 WARN L192 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2019-11-25 08:50:51,116 WARN L192 SmtUtils]: Spent 28.24 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-11-25 08:51:04,368 WARN L192 SmtUtils]: Spent 13.25 s on a formula simplification that was a NOOP. DAG size: 400 [2019-11-25 08:51:04,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 08:51:04 BoogieIcfgContainer [2019-11-25 08:51:04,440 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-25 08:51:04,440 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:51:04,441 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:51:04,441 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:51:04,441 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:50:20" (3/4) ... [2019-11-25 08:51:04,444 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-25 08:51:04,531 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1795a209-833c-40f4-a279-77c678dc039b/bin/uautomizer/witness.graphml [2019-11-25 08:51:04,531 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:51:04,533 INFO L168 Benchmark]: Toolchain (without parser) took 45486.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 201.9 MB). Free memory was 944.7 MB in the beginning and 1.0 GB in the end (delta: -65.9 MB). Peak memory consumption was 136.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:04,533 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:51:04,534 INFO L168 Benchmark]: CACSL2BoogieTranslator took 594.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -189.5 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:04,534 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:04,535 INFO L168 Benchmark]: Boogie Preprocessor took 39.60 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:51:04,536 INFO L168 Benchmark]: RCFGBuilder took 777.86 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: 65.3 MB). Peak memory consumption was 65.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:04,537 INFO L168 Benchmark]: BuchiAutomizer took 43921.39 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 57.1 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 37.0 MB). Peak memory consumption was 235.5 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:04,537 INFO L168 Benchmark]: Witness Printer took 90.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:04,540 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 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 594.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -189.5 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 58.10 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 39.60 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 777.86 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: 65.3 MB). Peak memory consumption was 65.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 43921.39 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 57.1 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 37.0 MB). Peak memory consumption was 235.5 MB. Max. memory is 11.5 GB. * Witness Printer took 90.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 508 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 43.8s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 43.1s. Construction of modules took 0.2s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 350 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 508 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 419 SDtfs, 688 SDslu, 689 SDs, 0 SdLazy, 111 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 896]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1174} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@71ec4276=0, retValue_acc=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5ef91562=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@508b3bfc=0, retValue_acc=0, NULL=0, NULL=1174, NULL=1199, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@14645ec0=0, NULL=0, NULL=0, NULL=1183, NULL=0, NULL=1181, NULL=0, NULL=0, NULL=1175, NULL=1187, NULL=1193, methaneLevelCritical=0, NULL=1188, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4de98044=0, tmp___0=0, NULL=0, NULL=1182, NULL=0, NULL=1176, tmp___1=0, tmp=0, tmp___0=1, NULL=1190, tmp=0, cleanupTimeShifts=4, NULL=1191, NULL=1179, NULL=1186, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=1177, \result=0, NULL=1194, NULL=1180, NULL=0, retValue_acc=1, NULL=1185, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, tmp=1, \result=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@8ab143a=0, NULL=0, NULL=1197, NULL=0, NULL=0, NULL=0, NULL=1184, retValue_acc=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5aa9a7f2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f8cfac1=59, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7928bd58=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@159b2a35=0, retValue_acc=0, NULL=1178, tmp=1, tmp___2=59, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, NULL=0, \result=0, NULL=1192, tmp___1=0, head=0, tmp=0, NULL=0, NULL=1198, NULL=0, NULL=0, NULL=1189, NULL=1196, NULL=1195} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L40] int cleanupTimeShifts = 4; [L185] int waterLevel = 1; [L186] int methaneLevelCritical = 0; [L693] int pumpRunning = 0; [L694] int systemActive = 1; [L492] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L121] int retValue_acc ; [L122] int tmp ; [L305] int retValue_acc ; [L308] retValue_acc = 1 [L309] return (retValue_acc); [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L887] int splverifierCounter ; [L888] int tmp ; [L889] int tmp___0 ; [L890] int tmp___1 ; [L891] int tmp___2 ; [L894] splverifierCounter = 0 Loop: [L896] COND TRUE 1 [L898] COND TRUE splverifierCounter < 4 [L904] tmp = __VERIFIER_nondet_int() [L906] COND FALSE !(\read(tmp)) [L914] tmp___0 = __VERIFIER_nondet_int() [L916] COND FALSE !(\read(tmp___0)) [L924] tmp___2 = __VERIFIER_nondet_int() [L926] COND TRUE \read(tmp___2) [L881] systemActive = 1 [L700] COND FALSE !(\read(pumpRunning)) [L707] COND TRUE \read(systemActive) [L729] int tmp ; [L732] COND TRUE ! pumpRunning [L844] int retValue_acc ; [L845] int tmp ; [L846] int tmp___0 ; [L265] int retValue_acc ; [L268] COND TRUE waterLevel < 2 [L269] retValue_acc = 1 [L270] return (retValue_acc); [L850] tmp = isHighWaterSensorDry() [L852] COND TRUE \read(tmp) [L853] tmp___0 = 0 [L857] retValue_acc = tmp___0 [L858] return (retValue_acc); [L734] tmp = isHighWaterLevel() [L736] COND FALSE !(\read(tmp)) [L149] int tmp ; [L150] int tmp___0 ; [L151] int tmp___1 ; [L224] int retValue_acc ; [L227] retValue_acc = methaneLevelCritical [L228] return (retValue_acc); [L155] tmp = isMethaneLevelCritical() [L157] COND FALSE !(\read(tmp)) [L256] int retValue_acc ; [L259] retValue_acc = waterLevel [L260] return (retValue_acc); [L161] tmp___0 = getWaterLevel() [L163] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...