./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product60.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_9cd76cf8-c90b-4968-9a95-44996b310dc6/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_9cd76cf8-c90b-4968-9a95-44996b310dc6/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9cd76cf8-c90b-4968-9a95-44996b310dc6/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9cd76cf8-c90b-4968-9a95-44996b310dc6/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product60.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9cd76cf8-c90b-4968-9a95-44996b310dc6/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9cd76cf8-c90b-4968-9a95-44996b310dc6/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 9f9d802e48c20b812c0aeb303e5b9a04b1c7ed3d ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 11:25:46,370 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 11:25:46,371 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 11:25:46,379 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 11:25:46,379 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 11:25:46,380 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 11:25:46,381 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 11:25:46,382 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 11:25:46,383 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 11:25:46,384 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 11:25:46,384 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 11:25:46,385 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 11:25:46,385 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 11:25:46,386 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 11:25:46,387 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 11:25:46,387 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 11:25:46,388 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 11:25:46,389 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 11:25:46,390 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 11:25:46,392 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 11:25:46,393 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 11:25:46,394 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 11:25:46,395 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 11:25:46,395 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 11:25:46,398 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 11:25:46,398 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 11:25:46,398 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 11:25:46,399 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 11:25:46,399 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 11:25:46,399 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 11:25:46,400 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 11:25:46,400 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 11:25:46,400 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 11:25:46,401 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 11:25:46,401 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 11:25:46,402 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 11:25:46,402 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 11:25:46,402 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 11:25:46,402 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 11:25:46,403 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 11:25:46,403 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 11:25:46,404 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9cd76cf8-c90b-4968-9a95-44996b310dc6/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 11:25:46,418 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 11:25:46,418 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 11:25:46,419 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 11:25:46,419 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 11:25:46,419 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 11:25:46,419 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 11:25:46,420 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 11:25:46,420 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 11:25:46,420 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 11:25:46,420 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 11:25:46,420 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 11:25:46,421 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 11:25:46,421 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 11:25:46,421 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 11:25:46,421 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 11:25:46,421 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 11:25:46,422 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 11:25:46,422 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 11:25:46,422 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 11:25:46,422 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 11:25:46,422 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 11:25:46,422 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 11:25:46,423 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 11:25:46,423 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 11:25:46,423 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 11:25:46,423 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 11:25:46,423 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 11:25:46,423 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 11:25:46,424 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 11:25:46,424 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 11:25:46,424 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 11:25:46,424 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 11:25:46,425 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 11:25:46,425 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_9cd76cf8-c90b-4968-9a95-44996b310dc6/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 -> 9f9d802e48c20b812c0aeb303e5b9a04b1c7ed3d [2019-12-07 11:25:46,535 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 11:25:46,542 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 11:25:46,544 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 11:25:46,545 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 11:25:46,546 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 11:25:46,546 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9cd76cf8-c90b-4968-9a95-44996b310dc6/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product60.cil.c [2019-12-07 11:25:46,582 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9cd76cf8-c90b-4968-9a95-44996b310dc6/bin/uautomizer/data/950dcfb29/39686dab677b4603a51f090f5ead3b53/FLAG7d126259e [2019-12-07 11:25:47,016 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 11:25:47,017 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9cd76cf8-c90b-4968-9a95-44996b310dc6/sv-benchmarks/c/product-lines/minepump_spec2_product60.cil.c [2019-12-07 11:25:47,025 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9cd76cf8-c90b-4968-9a95-44996b310dc6/bin/uautomizer/data/950dcfb29/39686dab677b4603a51f090f5ead3b53/FLAG7d126259e [2019-12-07 11:25:47,034 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9cd76cf8-c90b-4968-9a95-44996b310dc6/bin/uautomizer/data/950dcfb29/39686dab677b4603a51f090f5ead3b53 [2019-12-07 11:25:47,036 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 11:25:47,036 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 11:25:47,037 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 11:25:47,037 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 11:25:47,039 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 11:25:47,040 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:25:47" (1/1) ... [2019-12-07 11:25:47,041 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c2b2671 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:25:47, skipping insertion in model container [2019-12-07 11:25:47,042 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:25:47" (1/1) ... [2019-12-07 11:25:47,046 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 11:25:47,073 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 11:25:47,281 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:25:47,288 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 11:25:47,336 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:25:47,360 INFO L208 MainTranslator]: Completed translation [2019-12-07 11:25:47,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:25:47 WrapperNode [2019-12-07 11:25:47,360 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 11:25:47,361 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 11:25:47,361 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 11:25:47,361 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 11:25:47,366 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:25:47" (1/1) ... [2019-12-07 11:25:47,379 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:25:47" (1/1) ... [2019-12-07 11:25:47,406 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 11:25:47,407 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 11:25:47,407 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 11:25:47,407 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 11:25:47,413 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:25:47" (1/1) ... [2019-12-07 11:25:47,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:25:47" (1/1) ... [2019-12-07 11:25:47,417 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:25:47" (1/1) ... [2019-12-07 11:25:47,417 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:25:47" (1/1) ... [2019-12-07 11:25:47,426 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:25:47" (1/1) ... [2019-12-07 11:25:47,432 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:25:47" (1/1) ... [2019-12-07 11:25:47,435 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:25:47" (1/1) ... [2019-12-07 11:25:47,438 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 11:25:47,438 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 11:25:47,439 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 11:25:47,439 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 11:25:47,439 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:25:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9cd76cf8-c90b-4968-9a95-44996b310dc6/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 11:25:47,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 11:25:47,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-07 11:25:47,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 11:25:47,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 11:25:47,960 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 11:25:47,960 INFO L287 CfgBuilder]: Removed 200 assume(true) statements. [2019-12-07 11:25:47,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:25:47 BoogieIcfgContainer [2019-12-07 11:25:47,961 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 11:25:47,962 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 11:25:47,962 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 11:25:47,964 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 11:25:47,965 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 11:25:47,965 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 11:25:47" (1/3) ... [2019-12-07 11:25:47,965 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@28add025 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 11:25:47, skipping insertion in model container [2019-12-07 11:25:47,965 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 11:25:47,965 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:25:47" (2/3) ... [2019-12-07 11:25:47,966 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@28add025 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 11:25:47, skipping insertion in model container [2019-12-07 11:25:47,966 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 11:25:47,966 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:25:47" (3/3) ... [2019-12-07 11:25:47,967 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product60.cil.c [2019-12-07 11:25:47,995 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 11:25:47,995 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 11:25:47,996 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 11:25:47,996 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 11:25:47,996 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 11:25:47,996 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 11:25:47,996 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 11:25:47,996 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 11:25:48,009 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 138 states. [2019-12-07 11:25:48,029 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 89 [2019-12-07 11:25:48,029 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 11:25:48,029 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 11:25:48,035 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:25:48,035 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:25:48,035 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 11:25:48,035 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 138 states. [2019-12-07 11:25:48,040 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 89 [2019-12-07 11:25:48,040 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 11:25:48,040 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 11:25:48,041 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:25:48,041 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:25:48,045 INFO L794 eck$LassoCheckResult]: Stem: 117#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(21);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(21);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(30);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(9);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(25);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(25);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(13);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(80, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(117, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(109, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(112, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(32, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string70.base, #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 1 + #t~string70.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0; 5#L-1true havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~4, main_~tmp~0;havoc main_~retValue_acc~4;havoc main_~tmp~0; 112#L286true havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 130#L294true main_#t~ret10 := valid_product_#res;main_~tmp~0 := main_#t~ret10;havoc main_#t~ret10; 129#L250true assume 0 != main_~tmp~0; 41#L221true ~methAndRunningLastTime~0 := 0; 18#L984true havoc test_#t~nondet12, test_#t~nondet13, test_#t~nondet14, test_#t~nondet15, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 21#L995-1true [2019-12-07 11:25:48,045 INFO L796 eck$LassoCheckResult]: Loop: 21#L995-1true assume !false; 39#L312true assume test_~splverifierCounter~0 < 4; 137#L313true test_~tmp~1 := test_#t~nondet12;havoc test_#t~nondet12; 3#L321true assume !(0 != test_~tmp~1); 4#L321-1true test_~tmp___0~0 := test_#t~nondet13;havoc test_#t~nondet13; 55#L331true assume !(0 != test_~tmp___0~0); 59#L331-1true test_~tmp___2~0 := test_#t~nondet14;havoc test_#t~nondet14; 131#L341true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 134#L349-1true assume !(0 != ~pumpRunning~0); 42#L747true assume !(0 != ~systemActive~0); 120#L754true havoc __utac_acc__Specification2_spec__2_#t~ret73, __utac_acc__Specification2_spec__2_#t~ret74, __utac_acc__Specification2_spec__2_~tmp~10, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~10;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 96#L91-2true __utac_acc__Specification2_spec__2_#t~ret73 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~10 := __utac_acc__Specification2_spec__2_#t~ret73;havoc __utac_acc__Specification2_spec__2_#t~ret73; 16#L995true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~10);~methAndRunningLastTime~0 := 0; 21#L995-1true [2019-12-07 11:25:48,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:25:48,049 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-12-07 11:25:48,055 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:25:48,055 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672649845] [2019-12-07 11:25:48,055 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:25:48,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:25:48,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:25:48,274 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 11:25:48,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:25:48,275 INFO L82 PathProgramCache]: Analyzing trace with hash 14728148, now seen corresponding path program 1 times [2019-12-07 11:25:48,275 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:25:48,275 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674542517] [2019-12-07 11:25:48,275 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:25:48,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:25:48,308 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 11:25:48,309 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674542517] [2019-12-07 11:25:48,309 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:25:48,309 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 11:25:48,310 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245889318] [2019-12-07 11:25:48,313 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 11:25:48,314 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 11:25:48,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 11:25:48,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 11:25:48,325 INFO L87 Difference]: Start difference. First operand 138 states. Second operand 3 states. [2019-12-07 11:25:48,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:25:48,382 INFO L93 Difference]: Finished difference Result 269 states and 391 transitions. [2019-12-07 11:25:48,382 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 11:25:48,384 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 269 states and 391 transitions. [2019-12-07 11:25:48,391 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 174 [2019-12-07 11:25:48,398 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 269 states to 255 states and 376 transitions. [2019-12-07 11:25:48,399 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 255 [2019-12-07 11:25:48,400 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 255 [2019-12-07 11:25:48,401 INFO L73 IsDeterministic]: Start isDeterministic. Operand 255 states and 376 transitions. [2019-12-07 11:25:48,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 11:25:48,403 INFO L688 BuchiCegarLoop]: Abstraction has 255 states and 376 transitions. [2019-12-07 11:25:48,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states and 376 transitions. [2019-12-07 11:25:48,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 253. [2019-12-07 11:25:48,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2019-12-07 11:25:48,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 373 transitions. [2019-12-07 11:25:48,445 INFO L711 BuchiCegarLoop]: Abstraction has 253 states and 373 transitions. [2019-12-07 11:25:48,445 INFO L591 BuchiCegarLoop]: Abstraction has 253 states and 373 transitions. [2019-12-07 11:25:48,445 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 11:25:48,445 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 253 states and 373 transitions. [2019-12-07 11:25:48,448 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 172 [2019-12-07 11:25:48,448 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 11:25:48,448 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 11:25:48,449 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:25:48,449 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:25:48,449 INFO L794 eck$LassoCheckResult]: Stem: 553#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(21);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(21);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(30);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(9);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(25);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(25);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(13);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(80, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(117, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(109, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(112, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(32, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string70.base, #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 1 + #t~string70.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0; 420#L-1 havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~4, main_~tmp~0;havoc main_~retValue_acc~4;havoc main_~tmp~0; 421#L286 havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 552#L294 main_#t~ret10 := valid_product_#res;main_~tmp~0 := main_#t~ret10;havoc main_#t~ret10; 557#L250 assume 0 != main_~tmp~0; 484#L221 ~methAndRunningLastTime~0 := 0; 449#L984 havoc test_#t~nondet12, test_#t~nondet13, test_#t~nondet14, test_#t~nondet15, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 450#L995-1 [2019-12-07 11:25:48,450 INFO L796 eck$LassoCheckResult]: Loop: 450#L995-1 assume !false; 580#L312 assume test_~splverifierCounter~0 < 4; 579#L313 test_~tmp~1 := test_#t~nondet12;havoc test_#t~nondet12; 578#L321 assume !(0 != test_~tmp~1); 576#L321-1 test_~tmp___0~0 := test_#t~nondet13;havoc test_#t~nondet13; 575#L331 assume !(0 != test_~tmp___0~0); 573#L331-1 test_~tmp___2~0 := test_#t~nondet14;havoc test_#t~nondet14; 572#L341 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 559#L349-1 assume !(0 != ~pumpRunning~0); 429#L747 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret52, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 485#L805 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret51, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 593#L779-1 assume !(0 == ~pumpRunning~0); 586#L754 havoc __utac_acc__Specification2_spec__2_#t~ret73, __utac_acc__Specification2_spec__2_#t~ret74, __utac_acc__Specification2_spec__2_~tmp~10, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~10;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 585#L91-2 __utac_acc__Specification2_spec__2_#t~ret73 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~10 := __utac_acc__Specification2_spec__2_#t~ret73;havoc __utac_acc__Specification2_spec__2_#t~ret73; 583#L995 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~10);~methAndRunningLastTime~0 := 0; 450#L995-1 [2019-12-07 11:25:48,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:25:48,450 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-12-07 11:25:48,450 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:25:48,450 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669191835] [2019-12-07 11:25:48,451 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:25:48,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:25:48,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:25:48,535 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 11:25:48,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:25:48,536 INFO L82 PathProgramCache]: Analyzing trace with hash -2011842179, now seen corresponding path program 1 times [2019-12-07 11:25:48,536 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:25:48,536 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476144205] [2019-12-07 11:25:48,536 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:25:48,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:25:48,547 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 11:25:48,547 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476144205] [2019-12-07 11:25:48,548 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:25:48,548 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 11:25:48,548 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561914400] [2019-12-07 11:25:48,548 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 11:25:48,549 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 11:25:48,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 11:25:48,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 11:25:48,549 INFO L87 Difference]: Start difference. First operand 253 states and 373 transitions. cyclomatic complexity: 123 Second operand 3 states. [2019-12-07 11:25:48,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:25:48,607 INFO L93 Difference]: Finished difference Result 342 states and 485 transitions. [2019-12-07 11:25:48,608 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 11:25:48,608 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 342 states and 485 transitions. [2019-12-07 11:25:48,610 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 239 [2019-12-07 11:25:48,613 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 342 states to 342 states and 485 transitions. [2019-12-07 11:25:48,613 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 342 [2019-12-07 11:25:48,614 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 342 [2019-12-07 11:25:48,614 INFO L73 IsDeterministic]: Start isDeterministic. Operand 342 states and 485 transitions. [2019-12-07 11:25:48,615 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 11:25:48,615 INFO L688 BuchiCegarLoop]: Abstraction has 342 states and 485 transitions. [2019-12-07 11:25:48,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states and 485 transitions. [2019-12-07 11:25:48,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2019-12-07 11:25:48,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 342 states. [2019-12-07 11:25:48,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 485 transitions. [2019-12-07 11:25:48,626 INFO L711 BuchiCegarLoop]: Abstraction has 342 states and 485 transitions. [2019-12-07 11:25:48,626 INFO L591 BuchiCegarLoop]: Abstraction has 342 states and 485 transitions. [2019-12-07 11:25:48,626 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 11:25:48,626 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 342 states and 485 transitions. [2019-12-07 11:25:48,628 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 239 [2019-12-07 11:25:48,628 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 11:25:48,628 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 11:25:48,629 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:25:48,629 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 11:25:48,629 INFO L794 eck$LassoCheckResult]: Stem: 1156#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(21);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(21);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(30);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(9);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(25);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(25);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(13);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(80, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(117, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(109, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(112, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(32, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string70.base, #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 1 + #t~string70.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0; 1021#L-1 havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~4, main_~tmp~0;havoc main_~retValue_acc~4;havoc main_~tmp~0; 1022#L286 havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 1154#L294 main_#t~ret10 := valid_product_#res;main_~tmp~0 := main_#t~ret10;havoc main_#t~ret10; 1161#L250 assume 0 != main_~tmp~0; 1084#L221 ~methAndRunningLastTime~0 := 0; 1048#L984 havoc test_#t~nondet12, test_#t~nondet13, test_#t~nondet14, test_#t~nondet15, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1049#L995-1 [2019-12-07 11:25:48,629 INFO L796 eck$LassoCheckResult]: Loop: 1049#L995-1 assume !false; 1185#L312 assume test_~splverifierCounter~0 < 4; 1183#L313 test_~tmp~1 := test_#t~nondet12;havoc test_#t~nondet12; 1184#L321 assume !(0 != test_~tmp~1); 1266#L321-1 test_~tmp___0~0 := test_#t~nondet13;havoc test_#t~nondet13; 1178#L331 assume !(0 != test_~tmp___0~0); 1175#L331-1 test_~tmp___2~0 := test_#t~nondet14;havoc test_#t~nondet14; 1176#L341 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1166#L349-1 assume !(0 != ~pumpRunning~0); 1085#L747 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret52, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 1076#L805 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret51, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 1077#L779-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret71, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 1033#L131-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 1034#L136-1 isHighWaterLevel_#t~ret71 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret71;havoc isHighWaterLevel_#t~ret71; 1057#L925-3 assume !(0 != isHighWaterLevel_~tmp~8);isHighWaterLevel_~tmp___0~1 := 1; 1140#L925-5 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 1242#L931-1 processEnvironment__wrappee__highWaterSensor_#t~ret51 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret51;havoc processEnvironment__wrappee__highWaterSensor_#t~ret51; 1235#L783-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5); 1232#L754 havoc __utac_acc__Specification2_spec__2_#t~ret73, __utac_acc__Specification2_spec__2_#t~ret74, __utac_acc__Specification2_spec__2_~tmp~10, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~10;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 1230#L91-2 __utac_acc__Specification2_spec__2_#t~ret73 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~10 := __utac_acc__Specification2_spec__2_#t~ret73;havoc __utac_acc__Specification2_spec__2_#t~ret73; 1193#L995 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~10);~methAndRunningLastTime~0 := 0; 1049#L995-1 [2019-12-07 11:25:48,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:25:48,629 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-12-07 11:25:48,629 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:25:48,629 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605166714] [2019-12-07 11:25:48,630 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:25:48,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:25:48,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:25:48,679 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 11:25:48,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:25:48,680 INFO L82 PathProgramCache]: Analyzing trace with hash 235083, now seen corresponding path program 1 times [2019-12-07 11:25:48,680 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:25:48,680 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333891961] [2019-12-07 11:25:48,680 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:25:48,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:25:48,697 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 11:25:48,698 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333891961] [2019-12-07 11:25:48,698 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:25:48,698 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 11:25:48,698 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198086925] [2019-12-07 11:25:48,698 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 11:25:48,699 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 11:25:48,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 11:25:48,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 11:25:48,699 INFO L87 Difference]: Start difference. First operand 342 states and 485 transitions. cyclomatic complexity: 146 Second operand 4 states. [2019-12-07 11:25:48,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:25:48,772 INFO L93 Difference]: Finished difference Result 665 states and 927 transitions. [2019-12-07 11:25:48,773 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 11:25:48,773 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 665 states and 927 transitions. [2019-12-07 11:25:48,777 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 470 [2019-12-07 11:25:48,781 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 665 states to 665 states and 927 transitions. [2019-12-07 11:25:48,781 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 665 [2019-12-07 11:25:48,782 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 665 [2019-12-07 11:25:48,782 INFO L73 IsDeterministic]: Start isDeterministic. Operand 665 states and 927 transitions. [2019-12-07 11:25:48,784 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 11:25:48,784 INFO L688 BuchiCegarLoop]: Abstraction has 665 states and 927 transitions. [2019-12-07 11:25:48,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states and 927 transitions. [2019-12-07 11:25:48,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 366. [2019-12-07 11:25:48,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 366 states. [2019-12-07 11:25:48,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 509 transitions. [2019-12-07 11:25:48,799 INFO L711 BuchiCegarLoop]: Abstraction has 366 states and 509 transitions. [2019-12-07 11:25:48,799 INFO L591 BuchiCegarLoop]: Abstraction has 366 states and 509 transitions. [2019-12-07 11:25:48,799 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-12-07 11:25:48,799 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 366 states and 509 transitions. [2019-12-07 11:25:48,801 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 255 [2019-12-07 11:25:48,801 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 11:25:48,801 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 11:25:48,802 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:25:48,802 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 11:25:48,802 INFO L794 eck$LassoCheckResult]: Stem: 2199#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(21);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(21);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(30);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(9);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(25);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(25);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(13);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(80, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(117, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(109, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(112, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(32, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string70.base, #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 1 + #t~string70.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0; 2038#L-1 havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~4, main_~tmp~0;havoc main_~retValue_acc~4;havoc main_~tmp~0; 2039#L286 havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 2196#L294 main_#t~ret10 := valid_product_#res;main_~tmp~0 := main_#t~ret10;havoc main_#t~ret10; 2201#L250 assume 0 != main_~tmp~0; 2107#L221 ~methAndRunningLastTime~0 := 0; 2071#L984 havoc test_#t~nondet12, test_#t~nondet13, test_#t~nondet14, test_#t~nondet15, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2072#L995-1 [2019-12-07 11:25:48,802 INFO L796 eck$LassoCheckResult]: Loop: 2072#L995-1 assume !false; 2291#L312 assume test_~splverifierCounter~0 < 4; 2290#L313 test_~tmp~1 := test_#t~nondet12;havoc test_#t~nondet12; 2289#L321 assume !(0 != test_~tmp~1); 2287#L321-1 test_~tmp___0~0 := test_#t~nondet13;havoc test_#t~nondet13; 2124#L331 assume !(0 != test_~tmp___0~0); 2116#L331-1 test_~tmp___2~0 := test_#t~nondet14;havoc test_#t~nondet14; 2277#L341 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 2203#L349-1 assume !(0 != ~pumpRunning~0); 2108#L747 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret52, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 2109#L805 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret51, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 2311#L779-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret71, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 2053#L131-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 2054#L136-1 isHighWaterLevel_#t~ret71 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret71;havoc isHighWaterLevel_#t~ret71; 2179#L925-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 2144#L925-5 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 2121#L931-1 processEnvironment__wrappee__highWaterSensor_#t~ret51 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret51;havoc processEnvironment__wrappee__highWaterSensor_#t~ret51; 2063#L783-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5); 2064#L754 havoc __utac_acc__Specification2_spec__2_#t~ret73, __utac_acc__Specification2_spec__2_#t~ret74, __utac_acc__Specification2_spec__2_~tmp~10, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~10;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 2177#L91-2 __utac_acc__Specification2_spec__2_#t~ret73 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~10 := __utac_acc__Specification2_spec__2_#t~ret73;havoc __utac_acc__Specification2_spec__2_#t~ret73; 2178#L995 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~10);~methAndRunningLastTime~0 := 0; 2072#L995-1 [2019-12-07 11:25:48,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:25:48,803 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2019-12-07 11:25:48,803 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:25:48,803 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089225521] [2019-12-07 11:25:48,803 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:25:48,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:25:48,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:25:48,860 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 11:25:48,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:25:48,860 INFO L82 PathProgramCache]: Analyzing trace with hash -1774772279, now seen corresponding path program 1 times [2019-12-07 11:25:48,860 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:25:48,861 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008021594] [2019-12-07 11:25:48,861 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:25:48,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:25:48,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:25:48,872 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 11:25:48,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:25:48,872 INFO L82 PathProgramCache]: Analyzing trace with hash -1630653, now seen corresponding path program 1 times [2019-12-07 11:25:48,872 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:25:48,872 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789776436] [2019-12-07 11:25:48,873 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:25:48,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:25:48,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:25:48,928 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 11:26:11,849 WARN L192 SmtUtils]: Spent 22.78 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-12-07 11:26:23,545 WARN L192 SmtUtils]: Spent 11.69 s on a formula simplification that was a NOOP. DAG size: 402 [2019-12-07 11:26:23,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 11:26:23 BoogieIcfgContainer [2019-12-07 11:26:23,595 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 11:26:23,595 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 11:26:23,595 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 11:26:23,595 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 11:26:23,595 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:25:47" (3/4) ... [2019-12-07 11:26:23,597 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-12-07 11:26:23,634 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9cd76cf8-c90b-4968-9a95-44996b310dc6/bin/uautomizer/witness.graphml [2019-12-07 11:26:23,634 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 11:26:23,635 INFO L168 Benchmark]: Toolchain (without parser) took 36598.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 942.5 MB in the beginning and 950.7 MB in the end (delta: -8.1 MB). Peak memory consumption was 151.3 MB. Max. memory is 11.5 GB. [2019-12-07 11:26:23,635 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 958.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:26:23,636 INFO L168 Benchmark]: CACSL2BoogieTranslator took 323.36 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 937.2 MB in the beginning and 1.1 GB in the end (delta: -141.1 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-12-07 11:26:23,636 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.83 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 11:26:23,636 INFO L168 Benchmark]: Boogie Preprocessor took 31.68 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 11:26:23,637 INFO L168 Benchmark]: RCFGBuilder took 523.02 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: 67.0 MB). Peak memory consumption was 67.0 MB. Max. memory is 11.5 GB. [2019-12-07 11:26:23,637 INFO L168 Benchmark]: BuchiAutomizer took 35632.94 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 59.8 MB). Free memory was 1.0 GB in the beginning and 960.0 MB in the end (delta: 40.6 MB). Peak memory consumption was 229.7 MB. Max. memory is 11.5 GB. [2019-12-07 11:26:23,637 INFO L168 Benchmark]: Witness Printer took 39.10 ms. Allocated memory is still 1.2 GB. Free memory was 960.0 MB in the beginning and 950.7 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 11.5 GB. [2019-12-07 11:26:23,639 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 958.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 323.36 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 937.2 MB in the beginning and 1.1 GB in the end (delta: -141.1 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 45.83 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 31.68 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 523.02 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: 67.0 MB). Peak memory consumption was 67.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 35632.94 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 59.8 MB). Free memory was 1.0 GB in the beginning and 960.0 MB in the end (delta: 40.6 MB). Peak memory consumption was 229.7 MB. Max. memory is 11.5 GB. * Witness Printer took 39.10 ms. Allocated memory is still 1.2 GB. Free memory was 960.0 MB in the beginning and 950.7 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 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 4 locations. The remainder module has 366 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 35.5s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 35.2s. Construction of modules took 0.1s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 301 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 366 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 602 SDtfs, 646 SDslu, 592 SDs, 0 SdLazy, 99 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 311]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=381} State at position 1 is {NULL=0, retValue_acc=0, NULL=0, NULL=0, NULL=0, NULL=385, NULL=0, NULL=381, NULL=394, tmp=0, retValue_acc=0, NULL=0, NULL=0, NULL=388, NULL=0, NULL=402, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6aa2c167=0, NULL=403, NULL=405, methaneLevelCritical=0, NULL=399, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@472bc8c0=0, tmp___0=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@a016f1e=0, NULL=391, tmp___1=0, NULL=400, NULL=395, cleanupTimeShifts=4, NULL=387, tmp=0, NULL=401, tmp=0, NULL=0, systemActive=1, waterLevel=1, NULL=0, NULL=406, \result=0, NULL=398, NULL=386, tmp___0=0, NULL=404, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, tmp=1, \result=0, NULL=0, NULL=383, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@736c941e=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6fad08e0=0, NULL=0, NULL=397, \result=1, NULL=396, retValue_acc=1, retValue_acc=0, NULL=384, tmp___0=0, tmp=1, tmp___2=63, splverifierCounter=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, methAndRunningLastTime=0, \result=0, NULL=393, NULL=390, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@45f24f64=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a324e18=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6e23fe7f=63, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2c35818f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25cc51ad=0, head=0, tmp=0, NULL=0, NULL=0, NULL=382, NULL=392, NULL=389, NULL=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L48] int waterLevel = 1; [L49] int methaneLevelCritical = 0; [L160] int cleanupTimeShifts = 4; [L539] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L739] int pumpRunning = 0; [L740] int systemActive = 1; [L978] int methAndRunningLastTime ; [L241] int retValue_acc ; [L242] int tmp ; [L290] int retValue_acc ; [L293] retValue_acc = 1 [L294] return (retValue_acc); [L248] tmp = valid_product() [L250] COND TRUE \read(tmp) [L983] methAndRunningLastTime = 0 [L302] int splverifierCounter ; [L303] int tmp ; [L304] int tmp___0 ; [L305] int tmp___1 ; [L306] int tmp___2 ; [L309] splverifierCounter = 0 Loop: [L311] COND TRUE 1 [L313] COND TRUE splverifierCounter < 4 [L319] tmp = __VERIFIER_nondet_int() [L321] COND FALSE !(\read(tmp)) [L329] tmp___0 = __VERIFIER_nondet_int() [L331] COND FALSE !(\read(tmp___0)) [L339] tmp___2 = __VERIFIER_nondet_int() [L341] COND TRUE \read(tmp___2) [L973] systemActive = 1 [L747] COND FALSE !(\read(pumpRunning)) [L754] COND TRUE \read(systemActive) [L802] int tmp ; [L805] COND FALSE !(\read(pumpRunning)) [L776] int tmp ; [L779] COND TRUE ! pumpRunning [L917] int retValue_acc ; [L918] int tmp ; [L919] int tmp___0 ; [L128] int retValue_acc ; [L131] COND TRUE waterLevel < 2 [L132] retValue_acc = 1 [L133] return (retValue_acc); [L923] tmp = isHighWaterSensorDry() [L925] COND TRUE \read(tmp) [L926] tmp___0 = 0 [L930] retValue_acc = tmp___0 [L931] return (retValue_acc); [L781] tmp = isHighWaterLevel() [L783] COND FALSE !(\read(tmp)) [L988] int tmp ; [L989] int tmp___0 ; [L87] int retValue_acc ; [L90] retValue_acc = methaneLevelCritical [L91] return (retValue_acc); [L993] tmp = isMethaneLevelCritical() [L995] COND FALSE !(\read(tmp)) [L1011] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...