./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product36.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_ebe508cf-b24b-419b-9c32-d39f64a921d1/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_ebe508cf-b24b-419b-9c32-d39f64a921d1/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ebe508cf-b24b-419b-9c32-d39f64a921d1/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ebe508cf-b24b-419b-9c32-d39f64a921d1/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product36.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ebe508cf-b24b-419b-9c32-d39f64a921d1/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ebe508cf-b24b-419b-9c32-d39f64a921d1/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 deeb3c1689cccb41b32be052288e2f3a90dc0e8e .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 14:40:18,635 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 14:40:18,636 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 14:40:18,643 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 14:40:18,644 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 14:40:18,644 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 14:40:18,645 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 14:40:18,646 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 14:40:18,648 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 14:40:18,648 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 14:40:18,649 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 14:40:18,650 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 14:40:18,650 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 14:40:18,651 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 14:40:18,651 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 14:40:18,652 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 14:40:18,653 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 14:40:18,653 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 14:40:18,655 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 14:40:18,656 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 14:40:18,657 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 14:40:18,658 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 14:40:18,659 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 14:40:18,659 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 14:40:18,661 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 14:40:18,661 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 14:40:18,661 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 14:40:18,662 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 14:40:18,662 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 14:40:18,663 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 14:40:18,663 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 14:40:18,663 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 14:40:18,663 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 14:40:18,664 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 14:40:18,664 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 14:40:18,665 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 14:40:18,665 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 14:40:18,665 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 14:40:18,665 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 14:40:18,666 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 14:40:18,666 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 14:40:18,667 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ebe508cf-b24b-419b-9c32-d39f64a921d1/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 14:40:18,677 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 14:40:18,678 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 14:40:18,678 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 14:40:18,678 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 14:40:18,679 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 14:40:18,679 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 14:40:18,679 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 14:40:18,679 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 14:40:18,679 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 14:40:18,679 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 14:40:18,679 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 14:40:18,679 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 14:40:18,680 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 14:40:18,680 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 14:40:18,680 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 14:40:18,680 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 14:40:18,680 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 14:40:18,680 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 14:40:18,680 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 14:40:18,680 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 14:40:18,681 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 14:40:18,681 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 14:40:18,681 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 14:40:18,681 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 14:40:18,681 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 14:40:18,681 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 14:40:18,681 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 14:40:18,681 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 14:40:18,682 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 14:40:18,682 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 14:40:18,682 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 14:40:18,682 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 14:40:18,682 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 14:40:18,683 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_ebe508cf-b24b-419b-9c32-d39f64a921d1/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 -> deeb3c1689cccb41b32be052288e2f3a90dc0e8e [2019-12-07 14:40:18,780 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 14:40:18,790 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 14:40:18,793 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 14:40:18,795 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 14:40:18,795 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 14:40:18,796 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ebe508cf-b24b-419b-9c32-d39f64a921d1/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product36.cil.c [2019-12-07 14:40:18,838 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ebe508cf-b24b-419b-9c32-d39f64a921d1/bin/uautomizer/data/7321c5971/3e9b7f5e42d4429b9a4dcbbefa174c89/FLAG1e172c880 [2019-12-07 14:40:19,288 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 14:40:19,289 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ebe508cf-b24b-419b-9c32-d39f64a921d1/sv-benchmarks/c/product-lines/minepump_spec3_product36.cil.c [2019-12-07 14:40:19,299 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ebe508cf-b24b-419b-9c32-d39f64a921d1/bin/uautomizer/data/7321c5971/3e9b7f5e42d4429b9a4dcbbefa174c89/FLAG1e172c880 [2019-12-07 14:40:19,310 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ebe508cf-b24b-419b-9c32-d39f64a921d1/bin/uautomizer/data/7321c5971/3e9b7f5e42d4429b9a4dcbbefa174c89 [2019-12-07 14:40:19,312 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 14:40:19,313 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 14:40:19,314 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 14:40:19,314 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 14:40:19,316 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 14:40:19,316 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:40:19" (1/1) ... [2019-12-07 14:40:19,318 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c28c768 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:40:19, skipping insertion in model container [2019-12-07 14:40:19,318 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:40:19" (1/1) ... [2019-12-07 14:40:19,323 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 14:40:19,349 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 14:40:19,594 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:40:19,604 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 14:40:19,648 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:40:19,668 INFO L208 MainTranslator]: Completed translation [2019-12-07 14:40:19,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:40:19 WrapperNode [2019-12-07 14:40:19,668 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 14:40:19,669 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 14:40:19,669 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 14:40:19,669 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 14:40:19,674 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:40:19" (1/1) ... [2019-12-07 14:40:19,685 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:40:19" (1/1) ... [2019-12-07 14:40:19,707 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 14:40:19,708 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 14:40:19,708 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 14:40:19,708 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 14:40:19,714 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:40:19" (1/1) ... [2019-12-07 14:40:19,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:40:19" (1/1) ... [2019-12-07 14:40:19,717 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:40:19" (1/1) ... [2019-12-07 14:40:19,717 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:40:19" (1/1) ... [2019-12-07 14:40:19,724 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:40:19" (1/1) ... [2019-12-07 14:40:19,728 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:40:19" (1/1) ... [2019-12-07 14:40:19,730 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:40:19" (1/1) ... [2019-12-07 14:40:19,733 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 14:40:19,733 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 14:40:19,733 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 14:40:19,733 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 14:40:19,734 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:40:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ebe508cf-b24b-419b-9c32-d39f64a921d1/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 14:40:19,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 14:40:19,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-07 14:40:19,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 14:40:19,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 14:40:20,143 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 14:40:20,143 INFO L287 CfgBuilder]: Removed 108 assume(true) statements. [2019-12-07 14:40:20,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:40:20 BoogieIcfgContainer [2019-12-07 14:40:20,144 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 14:40:20,145 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 14:40:20,145 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 14:40:20,147 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 14:40:20,147 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 14:40:20,147 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 02:40:19" (1/3) ... [2019-12-07 14:40:20,148 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@219239bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 02:40:20, skipping insertion in model container [2019-12-07 14:40:20,148 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 14:40:20,148 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:40:19" (2/3) ... [2019-12-07 14:40:20,148 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@219239bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 02:40:20, skipping insertion in model container [2019-12-07 14:40:20,148 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 14:40:20,148 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:40:20" (3/3) ... [2019-12-07 14:40:20,149 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product36.cil.c [2019-12-07 14:40:20,176 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 14:40:20,177 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 14:40:20,177 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 14:40:20,177 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 14:40:20,177 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 14:40:20,177 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 14:40:20,177 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 14:40:20,177 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 14:40:20,187 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 83 states. [2019-12-07 14:40:20,204 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2019-12-07 14:40:20,204 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:40:20,204 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:40:20,210 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 14:40:20,210 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:40:20,210 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 14:40:20,210 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 83 states. [2019-12-07 14:40:20,214 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2019-12-07 14:40:20,214 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:40:20,214 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:40:20,215 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 14:40:20,215 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:40:20,218 INFO L794 eck$LassoCheckResult]: Stem: 32#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(13);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string40.base, #t~string40.offset, 1);call write~init~int(110, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 2 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(102, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(102, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 3 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string44.base, #t~string44.offset, 1);call write~init~int(80, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(117, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(109, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(112, #t~string44.base, 4 + #t~string44.offset, 1);call write~init~int(58, #t~string44.base, 5 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 6 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string50.base, #t~string50.offset, 1);call write~init~int(32, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 2 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string52.base, #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 1 + #t~string52.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(13);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string61.base, #t~string61.offset, 1);call write~init~int(77, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(101, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(116, #t~string61.base, 3 + #t~string61.offset, 1);call write~init~int(104, #t~string61.base, 4 + #t~string61.offset, 1);call write~init~int(58, #t~string61.base, 5 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 6 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string63.base, #t~string63.offset, 1);call write~init~int(82, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(73, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(84, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 4 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(75, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 5#L-1true havoc main_#res;havoc main_#t~ret68, main_~retValue_acc~9, main_~tmp~6;havoc main_~retValue_acc~9;havoc main_~tmp~6; 62#L890true havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 69#L898true main_#t~ret68 := valid_product_#res;main_~tmp~6 := main_#t~ret68;havoc main_#t~ret68; 72#L854true assume 0 != main_~tmp~6; 56#L828true havoc test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 27#L918-1true [2019-12-07 14:40:20,219 INFO L796 eck$LassoCheckResult]: Loop: 27#L918-1true assume !false; 54#L616true assume test_~splverifierCounter~0 < 4; 77#L617true test_~tmp~5 := test_#t~nondet54;havoc test_#t~nondet54; 14#L625true assume !(0 != test_~tmp~5); 18#L625-1true test_~tmp___0~1 := test_#t~nondet55;havoc test_#t~nondet55; 80#L635true assume !(0 != test_~tmp___0~1); 84#L635-1true test_~tmp___2~0 := test_#t~nondet56;havoc test_#t~nondet56; 61#L645true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 71#L653-1true assume !(0 != ~pumpRunning~0); 78#L434true assume !(0 != ~systemActive~0); 64#L441true havoc __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_#t~ret72, __utac_acc__Specification3_spec__1_~tmp~7, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~7;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 43#L718true __utac_acc__Specification3_spec__1_#t~ret70 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~7 := __utac_acc__Specification3_spec__1_#t~ret70;havoc __utac_acc__Specification3_spec__1_#t~ret70; 59#L912true assume 0 != __utac_acc__Specification3_spec__1_~tmp~7; 27#L918-1true [2019-12-07 14:40:20,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:40:20,223 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-12-07 14:40:20,228 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:40:20,228 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425848102] [2019-12-07 14:40:20,228 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:40:20,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:40:20,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:40:20,441 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:40:20,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:40:20,442 INFO L82 PathProgramCache]: Analyzing trace with hash -1671986817, now seen corresponding path program 1 times [2019-12-07 14:40:20,442 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:40:20,442 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765475761] [2019-12-07 14:40:20,442 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:40:20,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:40:20,475 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 14:40:20,475 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765475761] [2019-12-07 14:40:20,476 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:40:20,476 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 14:40:20,476 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759259918] [2019-12-07 14:40:20,480 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 14:40:20,480 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:40:20,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:40:20,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:40:20,491 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 3 states. [2019-12-07 14:40:20,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:40:20,534 INFO L93 Difference]: Finished difference Result 160 states and 228 transitions. [2019-12-07 14:40:20,535 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:40:20,536 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 160 states and 228 transitions. [2019-12-07 14:40:20,542 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 102 [2019-12-07 14:40:20,547 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 160 states to 146 states and 213 transitions. [2019-12-07 14:40:20,548 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 146 [2019-12-07 14:40:20,549 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 146 [2019-12-07 14:40:20,549 INFO L73 IsDeterministic]: Start isDeterministic. Operand 146 states and 213 transitions. [2019-12-07 14:40:20,550 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 14:40:20,550 INFO L688 BuchiCegarLoop]: Abstraction has 146 states and 213 transitions. [2019-12-07 14:40:20,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states and 213 transitions. [2019-12-07 14:40:20,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 144. [2019-12-07 14:40:20,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2019-12-07 14:40:20,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 210 transitions. [2019-12-07 14:40:20,575 INFO L711 BuchiCegarLoop]: Abstraction has 144 states and 210 transitions. [2019-12-07 14:40:20,576 INFO L591 BuchiCegarLoop]: Abstraction has 144 states and 210 transitions. [2019-12-07 14:40:20,576 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 14:40:20,576 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 144 states and 210 transitions. [2019-12-07 14:40:20,578 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 100 [2019-12-07 14:40:20,578 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:40:20,578 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:40:20,578 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 14:40:20,578 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:40:20,578 INFO L794 eck$LassoCheckResult]: Stem: 291#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(13);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string40.base, #t~string40.offset, 1);call write~init~int(110, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 2 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(102, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(102, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 3 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string44.base, #t~string44.offset, 1);call write~init~int(80, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(117, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(109, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(112, #t~string44.base, 4 + #t~string44.offset, 1);call write~init~int(58, #t~string44.base, 5 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 6 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string50.base, #t~string50.offset, 1);call write~init~int(32, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 2 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string52.base, #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 1 + #t~string52.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(13);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string61.base, #t~string61.offset, 1);call write~init~int(77, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(101, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(116, #t~string61.base, 3 + #t~string61.offset, 1);call write~init~int(104, #t~string61.base, 4 + #t~string61.offset, 1);call write~init~int(58, #t~string61.base, 5 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 6 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string63.base, #t~string63.offset, 1);call write~init~int(82, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(73, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(84, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 4 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(75, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 256#L-1 havoc main_#res;havoc main_#t~ret68, main_~retValue_acc~9, main_~tmp~6;havoc main_~retValue_acc~9;havoc main_~tmp~6; 257#L890 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 327#L898 main_#t~ret68 := valid_product_#res;main_~tmp~6 := main_#t~ret68;havoc main_#t~ret68; 329#L854 assume 0 != main_~tmp~6; 318#L828 havoc test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 285#L918-1 [2019-12-07 14:40:20,579 INFO L796 eck$LassoCheckResult]: Loop: 285#L918-1 assume !false; 286#L616 assume test_~splverifierCounter~0 < 4; 315#L617 test_~tmp~5 := test_#t~nondet54;havoc test_#t~nondet54; 273#L625 assume !(0 != test_~tmp~5); 275#L625-1 test_~tmp___0~1 := test_#t~nondet55;havoc test_#t~nondet55; 277#L635 assume !(0 != test_~tmp___0~1); 255#L635-1 test_~tmp___2~0 := test_#t~nondet56;havoc test_#t~nondet56; 324#L645 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 325#L653-1 assume !(0 != ~pumpRunning~0); 290#L434 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret35, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 316#L466 assume !(0 == ~pumpRunning~0); 317#L441 havoc __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_#t~ret72, __utac_acc__Specification3_spec__1_~tmp~7, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~7;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 301#L718 __utac_acc__Specification3_spec__1_#t~ret70 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~7 := __utac_acc__Specification3_spec__1_#t~ret70;havoc __utac_acc__Specification3_spec__1_#t~ret70; 302#L912 assume 0 != __utac_acc__Specification3_spec__1_~tmp~7; 285#L918-1 [2019-12-07 14:40:20,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:40:20,579 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-12-07 14:40:20,579 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:40:20,579 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87471968] [2019-12-07 14:40:20,579 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:40:20,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:40:20,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:40:20,666 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:40:20,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:40:20,667 INFO L82 PathProgramCache]: Analyzing trace with hash -323593906, now seen corresponding path program 1 times [2019-12-07 14:40:20,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:40:20,667 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554961911] [2019-12-07 14:40:20,668 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:40:20,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:40:20,679 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 14:40:20,679 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554961911] [2019-12-07 14:40:20,680 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:40:20,680 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 14:40:20,680 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169684120] [2019-12-07 14:40:20,680 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 14:40:20,680 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:40:20,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:40:20,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:40:20,681 INFO L87 Difference]: Start difference. First operand 144 states and 210 transitions. cyclomatic complexity: 69 Second operand 3 states. [2019-12-07 14:40:20,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:40:20,728 INFO L93 Difference]: Finished difference Result 239 states and 334 transitions. [2019-12-07 14:40:20,728 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:40:20,729 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 239 states and 334 transitions. [2019-12-07 14:40:20,732 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 171 [2019-12-07 14:40:20,735 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 239 states to 239 states and 334 transitions. [2019-12-07 14:40:20,735 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 239 [2019-12-07 14:40:20,736 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 239 [2019-12-07 14:40:20,736 INFO L73 IsDeterministic]: Start isDeterministic. Operand 239 states and 334 transitions. [2019-12-07 14:40:20,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 14:40:20,737 INFO L688 BuchiCegarLoop]: Abstraction has 239 states and 334 transitions. [2019-12-07 14:40:20,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states and 334 transitions. [2019-12-07 14:40:20,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2019-12-07 14:40:20,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2019-12-07 14:40:20,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 334 transitions. [2019-12-07 14:40:20,752 INFO L711 BuchiCegarLoop]: Abstraction has 239 states and 334 transitions. [2019-12-07 14:40:20,752 INFO L591 BuchiCegarLoop]: Abstraction has 239 states and 334 transitions. [2019-12-07 14:40:20,752 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 14:40:20,752 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 239 states and 334 transitions. [2019-12-07 14:40:20,754 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 171 [2019-12-07 14:40:20,754 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:40:20,755 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:40:20,755 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 14:40:20,756 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] [2019-12-07 14:40:20,756 INFO L794 eck$LassoCheckResult]: Stem: 681#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(13);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string40.base, #t~string40.offset, 1);call write~init~int(110, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 2 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(102, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(102, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 3 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string44.base, #t~string44.offset, 1);call write~init~int(80, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(117, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(109, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(112, #t~string44.base, 4 + #t~string44.offset, 1);call write~init~int(58, #t~string44.base, 5 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 6 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string50.base, #t~string50.offset, 1);call write~init~int(32, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 2 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string52.base, #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 1 + #t~string52.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(13);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string61.base, #t~string61.offset, 1);call write~init~int(77, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(101, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(116, #t~string61.base, 3 + #t~string61.offset, 1);call write~init~int(104, #t~string61.base, 4 + #t~string61.offset, 1);call write~init~int(58, #t~string61.base, 5 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 6 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string63.base, #t~string63.offset, 1);call write~init~int(82, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(73, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(84, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 4 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(75, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 648#L-1 havoc main_#res;havoc main_#t~ret68, main_~retValue_acc~9, main_~tmp~6;havoc main_~retValue_acc~9;havoc main_~tmp~6; 649#L890 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 720#L898 main_#t~ret68 := valid_product_#res;main_~tmp~6 := main_#t~ret68;havoc main_#t~ret68; 727#L854 assume 0 != main_~tmp~6; 711#L828 havoc test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 712#L918-1 [2019-12-07 14:40:20,756 INFO L796 eck$LassoCheckResult]: Loop: 712#L918-1 assume !false; 823#L616 assume test_~splverifierCounter~0 < 4; 732#L617 test_~tmp~5 := test_#t~nondet54;havoc test_#t~nondet54; 733#L625 assume !(0 != test_~tmp~5); 871#L625-1 test_~tmp___0~1 := test_#t~nondet55;havoc test_#t~nondet55; 868#L635 assume !(0 != test_~tmp___0~1); 866#L635-1 test_~tmp___2~0 := test_#t~nondet56;havoc test_#t~nondet56; 773#L645 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 726#L653-1 assume !(0 != ~pumpRunning~0); 734#L434 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret35, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 710#L466 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret53, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 698#L758 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 699#L763 isHighWaterLevel_#t~ret53 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret53;havoc isHighWaterLevel_#t~ret53; 693#L568 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~0 := 0; 694#L568-2 isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; 700#L574 processEnvironment_#t~ret35 := isHighWaterLevel_#res;processEnvironment_~tmp~3 := processEnvironment_#t~ret35;havoc processEnvironment_#t~ret35; 849#L470 assume !(0 != processEnvironment_~tmp~3); 830#L441 havoc __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_#t~ret72, __utac_acc__Specification3_spec__1_~tmp~7, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~7;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 829#L718 __utac_acc__Specification3_spec__1_#t~ret70 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~7 := __utac_acc__Specification3_spec__1_#t~ret70;havoc __utac_acc__Specification3_spec__1_#t~ret70; 825#L912 assume 0 != __utac_acc__Specification3_spec__1_~tmp~7; 712#L918-1 [2019-12-07 14:40:20,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:40:20,756 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-12-07 14:40:20,757 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:40:20,757 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59025658] [2019-12-07 14:40:20,757 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:40:20,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:40:20,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:40:20,824 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:40:20,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:40:20,824 INFO L82 PathProgramCache]: Analyzing trace with hash -1551490662, now seen corresponding path program 1 times [2019-12-07 14:40:20,825 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:40:20,825 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608516072] [2019-12-07 14:40:20,825 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:40:20,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:40:20,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:40:20,835 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:40:20,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:40:20,835 INFO L82 PathProgramCache]: Analyzing trace with hash -1536778688, now seen corresponding path program 1 times [2019-12-07 14:40:20,836 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:40:20,836 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757142985] [2019-12-07 14:40:20,836 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:40:20,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:40:20,882 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 14:40:20,882 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757142985] [2019-12-07 14:40:20,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:40:20,882 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 14:40:20,882 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617083072] [2019-12-07 14:40:21,015 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:40:21,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 14:40:21,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 14:40:21,016 INFO L87 Difference]: Start difference. First operand 239 states and 334 transitions. cyclomatic complexity: 98 Second operand 5 states. [2019-12-07 14:40:21,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:40:21,093 INFO L93 Difference]: Finished difference Result 788 states and 1109 transitions. [2019-12-07 14:40:21,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 14:40:21,093 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 788 states and 1109 transitions. [2019-12-07 14:40:21,099 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 600 [2019-12-07 14:40:21,104 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 788 states to 788 states and 1109 transitions. [2019-12-07 14:40:21,105 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 788 [2019-12-07 14:40:21,106 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 788 [2019-12-07 14:40:21,106 INFO L73 IsDeterministic]: Start isDeterministic. Operand 788 states and 1109 transitions. [2019-12-07 14:40:21,109 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 14:40:21,109 INFO L688 BuchiCegarLoop]: Abstraction has 788 states and 1109 transitions. [2019-12-07 14:40:21,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states and 1109 transitions. [2019-12-07 14:40:21,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 472. [2019-12-07 14:40:21,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 472 states. [2019-12-07 14:40:21,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 646 transitions. [2019-12-07 14:40:21,127 INFO L711 BuchiCegarLoop]: Abstraction has 472 states and 646 transitions. [2019-12-07 14:40:21,127 INFO L591 BuchiCegarLoop]: Abstraction has 472 states and 646 transitions. [2019-12-07 14:40:21,127 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-12-07 14:40:21,127 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 472 states and 646 transitions. [2019-12-07 14:40:21,129 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 342 [2019-12-07 14:40:21,130 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:40:21,130 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:40:21,130 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 14:40:21,131 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] [2019-12-07 14:40:21,131 INFO L794 eck$LassoCheckResult]: Stem: 1730#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(13);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string40.base, #t~string40.offset, 1);call write~init~int(110, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 2 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(102, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(102, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 3 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string44.base, #t~string44.offset, 1);call write~init~int(80, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(117, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(109, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(112, #t~string44.base, 4 + #t~string44.offset, 1);call write~init~int(58, #t~string44.base, 5 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 6 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string50.base, #t~string50.offset, 1);call write~init~int(32, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 2 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string52.base, #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 1 + #t~string52.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(13);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string61.base, #t~string61.offset, 1);call write~init~int(77, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(101, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(116, #t~string61.base, 3 + #t~string61.offset, 1);call write~init~int(104, #t~string61.base, 4 + #t~string61.offset, 1);call write~init~int(58, #t~string61.base, 5 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 6 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string63.base, #t~string63.offset, 1);call write~init~int(82, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(73, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(84, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 4 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(75, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 1690#L-1 havoc main_#res;havoc main_#t~ret68, main_~retValue_acc~9, main_~tmp~6;havoc main_~retValue_acc~9;havoc main_~tmp~6; 1691#L890 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 1773#L898 main_#t~ret68 := valid_product_#res;main_~tmp~6 := main_#t~ret68;havoc main_#t~ret68; 1782#L854 assume 0 != main_~tmp~6; 1763#L828 havoc test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1723#L918-1 [2019-12-07 14:40:21,131 INFO L796 eck$LassoCheckResult]: Loop: 1723#L918-1 assume !false; 1725#L616 assume test_~splverifierCounter~0 < 4; 1761#L617 test_~tmp~5 := test_#t~nondet54;havoc test_#t~nondet54; 1708#L625 assume !(0 != test_~tmp~5); 1710#L625-1 test_~tmp___0~1 := test_#t~nondet55;havoc test_#t~nondet55; 1713#L635 assume !(0 != test_~tmp___0~1); 1791#L635-1 test_~tmp___2~0 := test_#t~nondet56;havoc test_#t~nondet56; 2001#L645 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1781#L653-1 assume !(0 != ~pumpRunning~0); 1784#L434 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret35, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 1762#L466 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret53, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 1752#L758 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 1753#L763 isHighWaterLevel_#t~ret53 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret53;havoc isHighWaterLevel_#t~ret53; 1744#L568 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~0 := 0; 1745#L568-2 isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; 1695#L574 processEnvironment_#t~ret35 := isHighWaterLevel_#res;processEnvironment_~tmp~3 := processEnvironment_#t~ret35;havoc processEnvironment_#t~ret35; 1696#L470 assume !(0 != processEnvironment_~tmp~3); 1786#L441 havoc __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_#t~ret72, __utac_acc__Specification3_spec__1_~tmp~7, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~7;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 1740#L718 __utac_acc__Specification3_spec__1_#t~ret70 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~7 := __utac_acc__Specification3_spec__1_#t~ret70;havoc __utac_acc__Specification3_spec__1_#t~ret70; 1741#L912 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~7);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 1715#L750 __utac_acc__Specification3_spec__1_#t~ret71 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~2 := __utac_acc__Specification3_spec__1_#t~ret71;havoc __utac_acc__Specification3_spec__1_#t~ret71; 1716#L918 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2); 1723#L918-1 [2019-12-07 14:40:21,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:40:21,131 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 4 times [2019-12-07 14:40:21,131 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:40:21,132 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997487190] [2019-12-07 14:40:21,132 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:40:21,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:40:21,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:40:21,175 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:40:21,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:40:21,175 INFO L82 PathProgramCache]: Analyzing trace with hash -628868084, now seen corresponding path program 1 times [2019-12-07 14:40:21,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:40:21,176 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259765275] [2019-12-07 14:40:21,176 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:40:21,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:40:21,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:40:21,185 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:40:21,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:40:21,186 INFO L82 PathProgramCache]: Analyzing trace with hash 624437042, now seen corresponding path program 1 times [2019-12-07 14:40:21,186 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:40:21,186 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870932158] [2019-12-07 14:40:21,186 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:40:21,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:40:21,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:40:21,236 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:40:21,339 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2019-12-07 14:40:43,249 WARN L192 SmtUtils]: Spent 21.87 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-12-07 14:40:56,352 WARN L192 SmtUtils]: Spent 13.10 s on a formula simplification that was a NOOP. DAG size: 400 [2019-12-07 14:40:56,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 02:40:56 BoogieIcfgContainer [2019-12-07 14:40:56,420 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 14:40:56,420 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 14:40:56,420 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 14:40:56,420 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 14:40:56,421 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:40:20" (3/4) ... [2019-12-07 14:40:56,424 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-12-07 14:40:56,468 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ebe508cf-b24b-419b-9c32-d39f64a921d1/bin/uautomizer/witness.graphml [2019-12-07 14:40:56,468 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 14:40:56,469 INFO L168 Benchmark]: Toolchain (without parser) took 37156.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 947.9 MB in the beginning and 951.7 MB in the end (delta: -3.9 MB). Peak memory consumption was 154.5 MB. Max. memory is 11.5 GB. [2019-12-07 14:40:56,469 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 964.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:40:56,470 INFO L168 Benchmark]: CACSL2BoogieTranslator took 354.83 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.7 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -153.1 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-12-07 14:40:56,470 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.92 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 14:40:56,470 INFO L168 Benchmark]: Boogie Preprocessor took 25.25 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:40:56,470 INFO L168 Benchmark]: RCFGBuilder took 411.09 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: 56.2 MB). Peak memory consumption was 56.2 MB. Max. memory is 11.5 GB. [2019-12-07 14:40:56,471 INFO L168 Benchmark]: BuchiAutomizer took 36275.33 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 46.7 MB). Free memory was 1.0 GB in the beginning and 954.0 MB in the end (delta: 80.1 MB). Peak memory consumption was 243.2 MB. Max. memory is 11.5 GB. [2019-12-07 14:40:56,471 INFO L168 Benchmark]: Witness Printer took 47.90 ms. Allocated memory is still 1.2 GB. Free memory was 954.0 MB in the beginning and 951.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 11.5 GB. [2019-12-07 14:40:56,473 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 964.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 354.83 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.7 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -153.1 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 38.92 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 25.25 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 411.09 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: 56.2 MB). Peak memory consumption was 56.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 36275.33 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 46.7 MB). Free memory was 1.0 GB in the beginning and 954.0 MB in the end (delta: 80.1 MB). Peak memory consumption was 243.2 MB. Max. memory is 11.5 GB. * Witness Printer took 47.90 ms. Allocated memory is still 1.2 GB. Free memory was 954.0 MB in the beginning and 951.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 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 472 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 36.2s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 35.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 318 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 472 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 399 SDtfs, 623 SDslu, 640 SDs, 0 SdLazy, 75 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s 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: 615]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=6983} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=6983, NULL=6994, NULL=0, NULL=0, NULL=0, NULL=6989, NULL=7001, NULL=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@23ccf558=0, methaneLevelCritical=0, retValue_acc=1, tmp___0=0, retValue_acc=0, NULL=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@419384cb=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@40fd539c=0, tmp___1=0, NULL=13551, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5afea896=0, NULL=13546, NULL=13548, NULL=6998, cleanupTimeShifts=4, NULL=13552, NULL=6999, NULL=13553, tmp=0, tmp___0=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=0, retValue_acc=0, \result=0, NULL=13554, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43e567f0=0, NULL=0, NULL=0, \result=1, NULL=6995, head=0, pumpRunning=0, retValue_acc=1, \result=0, NULL=13545, NULL=6984, NULL=0, NULL=0, tmp=1, \result=1, NULL=13549, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4fb920a=0, NULL=6997, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6cbba52b=0, NULL=6990, NULL=6992, tmp=1, retValue_acc=1, tmp___2=62, NULL=7000, tmp___0=0, splverifierCounter=0, NULL=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@73bab853=0, NULL=6985, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59cf406=62, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3c63488e=0, tmp=0, tmp___1=0, head=0, NULL=0, NULL=13547, NULL=13550, NULL=0, NULL=6996, NULL=0, NULL=0, NULL=6993, NULL=0, NULL=6991} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L218] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L426] int pumpRunning = 0; [L427] int systemActive = 1; [L675] int waterLevel = 1; [L676] int methaneLevelCritical = 0; [L769] int cleanupTimeShifts = 4; [L845] int retValue_acc ; [L846] int tmp ; [L894] int retValue_acc ; [L897] retValue_acc = 1 [L898] return (retValue_acc); [L852] tmp = valid_product() [L854] COND TRUE \read(tmp) [L606] int splverifierCounter ; [L607] int tmp ; [L608] int tmp___0 ; [L609] int tmp___1 ; [L610] int tmp___2 ; [L613] splverifierCounter = 0 Loop: [L615] COND TRUE 1 [L617] COND TRUE splverifierCounter < 4 [L623] tmp = __VERIFIER_nondet_int() [L625] COND FALSE !(\read(tmp)) [L633] tmp___0 = __VERIFIER_nondet_int() [L635] COND FALSE !(\read(tmp___0)) [L643] tmp___2 = __VERIFIER_nondet_int() [L645] COND TRUE \read(tmp___2) [L597] systemActive = 1 [L434] COND FALSE !(\read(pumpRunning)) [L441] COND TRUE \read(systemActive) [L463] int tmp ; [L466] COND TRUE ! pumpRunning [L560] int retValue_acc ; [L561] int tmp ; [L562] int tmp___0 ; [L755] int retValue_acc ; [L758] COND TRUE waterLevel < 2 [L759] retValue_acc = 1 [L760] return (retValue_acc); [L566] tmp = isHighWaterSensorDry() [L568] COND TRUE \read(tmp) [L569] tmp___0 = 0 [L573] retValue_acc = tmp___0 [L574] return (retValue_acc); [L468] tmp = isHighWaterLevel() [L470] COND FALSE !(\read(tmp)) [L904] int tmp ; [L905] int tmp___0 ; [L906] int tmp___1 ; [L714] int retValue_acc ; [L717] retValue_acc = methaneLevelCritical [L718] return (retValue_acc); [L910] tmp = isMethaneLevelCritical() [L912] COND FALSE !(\read(tmp)) [L746] int retValue_acc ; [L749] retValue_acc = waterLevel [L750] return (retValue_acc); [L916] tmp___0 = getWaterLevel() [L918] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...