./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product47.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_015c2bea-604e-45e4-8b9f-673cb64fdbb3/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_015c2bea-604e-45e4-8b9f-673cb64fdbb3/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_015c2bea-604e-45e4-8b9f-673cb64fdbb3/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_015c2bea-604e-45e4-8b9f-673cb64fdbb3/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_015c2bea-604e-45e4-8b9f-673cb64fdbb3/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_015c2bea-604e-45e4-8b9f-673cb64fdbb3/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 c5a0b2bcaab730b804e6efb5bb851b66755fb542 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 12:26:46,885 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:26:46,886 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:26:46,894 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:26:46,894 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:26:46,895 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:26:46,896 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:26:46,897 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:26:46,899 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:26:46,899 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:26:46,900 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:26:46,901 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:26:46,901 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:26:46,902 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:26:46,902 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:26:46,903 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:26:46,904 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:26:46,904 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:26:46,906 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:26:46,907 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:26:46,908 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:26:46,909 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:26:46,910 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:26:46,910 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:26:46,912 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:26:46,912 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:26:46,912 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:26:46,913 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:26:46,913 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:26:46,914 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:26:46,914 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:26:46,914 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:26:46,915 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:26:46,915 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:26:46,916 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:26:46,916 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:26:46,916 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:26:46,916 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:26:46,917 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:26:46,917 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:26:46,918 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:26:46,918 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_015c2bea-604e-45e4-8b9f-673cb64fdbb3/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 12:26:46,929 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:26:46,929 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:26:46,930 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 12:26:46,930 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 12:26:46,930 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 12:26:46,930 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 12:26:46,930 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 12:26:46,931 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 12:26:46,931 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 12:26:46,931 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 12:26:46,931 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 12:26:46,931 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:26:46,931 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 12:26:46,931 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 12:26:46,931 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 12:26:46,931 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 12:26:46,931 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:26:46,932 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 12:26:46,932 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 12:26:46,932 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 12:26:46,932 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 12:26:46,932 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 12:26:46,932 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 12:26:46,932 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:26:46,932 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 12:26:46,933 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:26:46,933 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 12:26:46,933 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 12:26:46,933 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:26:46,933 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 12:26:46,933 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:26:46,933 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 12:26:46,934 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 12:26:46,934 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_015c2bea-604e-45e4-8b9f-673cb64fdbb3/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 -> c5a0b2bcaab730b804e6efb5bb851b66755fb542 [2019-12-07 12:26:47,038 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:26:47,048 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:26:47,051 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:26:47,052 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:26:47,052 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:26:47,053 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_015c2bea-604e-45e4-8b9f-673cb64fdbb3/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c [2019-12-07 12:26:47,090 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_015c2bea-604e-45e4-8b9f-673cb64fdbb3/bin/uautomizer/data/57b117852/9c237cc899484e01855dbbc045019a8c/FLAG2cb45e9a4 [2019-12-07 12:26:47,584 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:26:47,584 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_015c2bea-604e-45e4-8b9f-673cb64fdbb3/sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c [2019-12-07 12:26:47,592 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_015c2bea-604e-45e4-8b9f-673cb64fdbb3/bin/uautomizer/data/57b117852/9c237cc899484e01855dbbc045019a8c/FLAG2cb45e9a4 [2019-12-07 12:26:48,073 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_015c2bea-604e-45e4-8b9f-673cb64fdbb3/bin/uautomizer/data/57b117852/9c237cc899484e01855dbbc045019a8c [2019-12-07 12:26:48,075 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:26:48,076 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 12:26:48,077 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:26:48,077 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:26:48,080 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:26:48,081 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:26:48" (1/1) ... [2019-12-07 12:26:48,083 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e292d9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:26:48, skipping insertion in model container [2019-12-07 12:26:48,083 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:26:48" (1/1) ... [2019-12-07 12:26:48,089 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:26:48,118 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:26:48,326 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:26:48,334 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 12:26:48,384 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:26:48,407 INFO L208 MainTranslator]: Completed translation [2019-12-07 12:26:48,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:26:48 WrapperNode [2019-12-07 12:26:48,408 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:26:48,408 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 12:26:48,408 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 12:26:48,408 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 12:26:48,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:26:48" (1/1) ... [2019-12-07 12:26:48,426 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:26:48" (1/1) ... [2019-12-07 12:26:48,455 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 12:26:48,455 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 12:26:48,455 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 12:26:48,455 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 12:26:48,462 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:26:48" (1/1) ... [2019-12-07 12:26:48,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:26:48" (1/1) ... [2019-12-07 12:26:48,466 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:26:48" (1/1) ... [2019-12-07 12:26:48,466 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:26:48" (1/1) ... [2019-12-07 12:26:48,476 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:26:48" (1/1) ... [2019-12-07 12:26:48,483 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:26:48" (1/1) ... [2019-12-07 12:26:48,485 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:26:48" (1/1) ... [2019-12-07 12:26:48,488 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 12:26:48,489 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 12:26:48,489 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 12:26:48,489 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 12:26:48,490 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:26:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_015c2bea-604e-45e4-8b9f-673cb64fdbb3/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 12:26:48,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 12:26:48,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-07 12:26:48,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 12:26:48,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 12:26:48,962 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 12:26:48,963 INFO L287 CfgBuilder]: Removed 210 assume(true) statements. [2019-12-07 12:26:48,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:26:48 BoogieIcfgContainer [2019-12-07 12:26:48,964 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 12:26:48,965 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 12:26:48,965 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 12:26:48,967 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 12:26:48,968 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 12:26:48,968 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 12:26:48" (1/3) ... [2019-12-07 12:26:48,969 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7786697c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 12:26:48, skipping insertion in model container [2019-12-07 12:26:48,969 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 12:26:48,969 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:26:48" (2/3) ... [2019-12-07 12:26:48,970 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7786697c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 12:26:48, skipping insertion in model container [2019-12-07 12:26:48,970 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 12:26:48,970 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:26:48" (3/3) ... [2019-12-07 12:26:48,971 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product47.cil.c [2019-12-07 12:26:49,007 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 12:26:49,007 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 12:26:49,007 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 12:26:49,007 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 12:26:49,007 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 12:26:49,007 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 12:26:49,007 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 12:26:49,007 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 12:26:49,020 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 137 states. [2019-12-07 12:26:49,040 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 89 [2019-12-07 12:26:49,040 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 12:26:49,040 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 12:26:49,046 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:26:49,046 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:26:49,046 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 12:26:49,046 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 137 states. [2019-12-07 12:26:49,051 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 89 [2019-12-07 12:26:49,051 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 12:26:49,051 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 12:26:49,052 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:26:49,052 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:26:49,056 INFO L794 eck$LassoCheckResult]: Stem: 111#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(13);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(102, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(102, #t~string9.base, 2 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 3 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(80, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(117, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(109, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(112, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(32, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string19.base, #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 1 + #t~string19.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(21);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(21);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(25);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(77, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(101, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(116, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(104, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string70.base, #t~string70.offset, 1);call write~init~int(82, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(73, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(84, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 4 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(75, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 5#L-1true havoc main_#res;havoc main_#t~ret25, main_~retValue_acc~3, main_~tmp~5;havoc main_~retValue_acc~3;havoc main_~tmp~5; 4#L833true havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 7#L841true main_#t~ret25 := valid_product_#res;main_~tmp~5 := main_#t~ret25;havoc main_#t~ret25; 19#L431true assume 0 != main_~tmp~5; 30#L403true ~switchedOnBeforeTS~0 := 0; 121#L853true havoc test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 8#L874-1true [2019-12-07 12:26:49,056 INFO L796 eck$LassoCheckResult]: Loop: 8#L874-1true assume !false; 10#L288true assume test_~splverifierCounter~0 < 4; 113#L289true test_~tmp~4 := test_#t~nondet21;havoc test_#t~nondet21; 106#L297true assume !(0 != test_~tmp~4); 104#L297-1true test_~tmp___0~1 := test_#t~nondet22;havoc test_#t~nondet22; 11#L307true assume !(0 != test_~tmp___0~1); 15#L307-1true test_~tmp___2~0 := test_#t~nondet23;havoc test_#t~nondet23; 73#L317true assume 0 != test_~tmp___2~0; 44#L323-1true havoc __utac_acc__Specification5_spec__2_#t~ret62;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 46#L199true __utac_acc__Specification5_spec__2_#t~ret62 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret62;havoc __utac_acc__Specification5_spec__2_#t~ret62; 28#L863true assume !(0 != ~pumpRunning~0); 120#L71true assume !(0 != ~systemActive~0); 57#L78true havoc __utac_acc__Specification5_spec__3_#t~ret63, __utac_acc__Specification5_spec__3_#t~ret64, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 130#L971true __utac_acc__Specification5_spec__3_#t~ret63 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret63;havoc __utac_acc__Specification5_spec__3_#t~ret63; 27#L874true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9); 8#L874-1true [2019-12-07 12:26:49,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:26:49,060 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-12-07 12:26:49,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:26:49,067 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872243545] [2019-12-07 12:26:49,067 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:26:49,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:26:49,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:26:49,303 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:26:49,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:26:49,304 INFO L82 PathProgramCache]: Analyzing trace with hash -239583083, now seen corresponding path program 1 times [2019-12-07 12:26:49,304 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:26:49,304 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873271907] [2019-12-07 12:26:49,305 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:26:49,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:26:49,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:26:49,314 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:26:49,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:26:49,316 INFO L82 PathProgramCache]: Analyzing trace with hash 1694442127, now seen corresponding path program 1 times [2019-12-07 12:26:49,316 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:26:49,316 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308974829] [2019-12-07 12:26:49,316 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:26:49,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:26:49,392 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 12:26:49,392 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308974829] [2019-12-07 12:26:49,393 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:26:49,393 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 12:26:49,394 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391782930] [2019-12-07 12:26:49,461 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:26:49,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 12:26:49,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-12-07 12:26:49,477 INFO L87 Difference]: Start difference. First operand 137 states. Second operand 6 states. [2019-12-07 12:26:49,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:26:49,599 INFO L93 Difference]: Finished difference Result 325 states and 460 transitions. [2019-12-07 12:26:49,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 12:26:49,601 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 325 states and 460 transitions. [2019-12-07 12:26:49,610 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 211 [2019-12-07 12:26:49,618 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 325 states to 304 states and 439 transitions. [2019-12-07 12:26:49,619 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 304 [2019-12-07 12:26:49,620 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 304 [2019-12-07 12:26:49,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 304 states and 439 transitions. [2019-12-07 12:26:49,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 12:26:49,624 INFO L688 BuchiCegarLoop]: Abstraction has 304 states and 439 transitions. [2019-12-07 12:26:49,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states and 439 transitions. [2019-12-07 12:26:49,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 179. [2019-12-07 12:26:49,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2019-12-07 12:26:49,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 257 transitions. [2019-12-07 12:26:49,655 INFO L711 BuchiCegarLoop]: Abstraction has 179 states and 257 transitions. [2019-12-07 12:26:49,655 INFO L591 BuchiCegarLoop]: Abstraction has 179 states and 257 transitions. [2019-12-07 12:26:49,655 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 12:26:49,655 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 179 states and 257 transitions. [2019-12-07 12:26:49,657 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 124 [2019-12-07 12:26:49,657 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 12:26:49,657 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 12:26:49,658 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:26:49,658 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:26:49,659 INFO L794 eck$LassoCheckResult]: Stem: 607#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(13);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(102, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(102, #t~string9.base, 2 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 3 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(80, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(117, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(109, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(112, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(32, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string19.base, #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 1 + #t~string19.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(21);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(21);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(25);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(77, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(101, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(116, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(104, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string70.base, #t~string70.offset, 1);call write~init~int(82, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(73, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(84, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 4 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(75, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 482#L-1 havoc main_#res;havoc main_#t~ret25, main_~retValue_acc~3, main_~tmp~5;havoc main_~retValue_acc~3;havoc main_~tmp~5; 480#L833 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 481#L841 main_#t~ret25 := valid_product_#res;main_~tmp~5 := main_#t~ret25;havoc main_#t~ret25; 485#L431 assume 0 != main_~tmp~5; 509#L403 ~switchedOnBeforeTS~0 := 0; 531#L853 havoc test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 486#L874-1 [2019-12-07 12:26:49,659 INFO L796 eck$LassoCheckResult]: Loop: 486#L874-1 assume !false; 487#L288 assume test_~splverifierCounter~0 < 4; 491#L289 test_~tmp~4 := test_#t~nondet21;havoc test_#t~nondet21; 606#L297 assume !(0 != test_~tmp~4); 604#L297-1 test_~tmp___0~1 := test_#t~nondet22;havoc test_#t~nondet22; 493#L307 assume !(0 != test_~tmp___0~1); 495#L307-1 test_~tmp___2~0 := test_#t~nondet23;havoc test_#t~nondet23; 504#L317 assume 0 != test_~tmp___2~0; 549#L323-1 havoc __utac_acc__Specification5_spec__2_#t~ret62;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 554#L199 __utac_acc__Specification5_spec__2_#t~ret62 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret62;havoc __utac_acc__Specification5_spec__2_#t~ret62; 528#L863 assume !(0 != ~pumpRunning~0); 530#L71 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 610#L129 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret0, processEnvironment__wrappee__methaneQuery_~tmp~0;havoc processEnvironment__wrappee__methaneQuery_~tmp~0; 515#L103-1 assume !(0 == ~pumpRunning~0); 517#L78 havoc __utac_acc__Specification5_spec__3_#t~ret63, __utac_acc__Specification5_spec__3_#t~ret64, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 568#L971 __utac_acc__Specification5_spec__3_#t~ret63 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret63;havoc __utac_acc__Specification5_spec__3_#t~ret63; 526#L874 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9); 486#L874-1 [2019-12-07 12:26:49,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:26:49,659 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-12-07 12:26:49,659 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:26:49,659 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104263394] [2019-12-07 12:26:49,659 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:26:49,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:26:49,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:26:49,730 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:26:49,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:26:49,730 INFO L82 PathProgramCache]: Analyzing trace with hash -1391395369, now seen corresponding path program 1 times [2019-12-07 12:26:49,730 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:26:49,731 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545925715] [2019-12-07 12:26:49,731 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:26:49,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:26:49,741 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 12:26:49,742 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545925715] [2019-12-07 12:26:49,742 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:26:49,742 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 12:26:49,742 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907793056] [2019-12-07 12:26:49,743 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 12:26:49,743 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:26:49,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 12:26:49,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 12:26:49,743 INFO L87 Difference]: Start difference. First operand 179 states and 257 transitions. cyclomatic complexity: 81 Second operand 3 states. [2019-12-07 12:26:49,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:26:49,820 INFO L93 Difference]: Finished difference Result 226 states and 308 transitions. [2019-12-07 12:26:49,820 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 12:26:49,820 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 226 states and 308 transitions. [2019-12-07 12:26:49,822 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 160 [2019-12-07 12:26:49,824 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 226 states to 226 states and 308 transitions. [2019-12-07 12:26:49,825 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 226 [2019-12-07 12:26:49,825 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 226 [2019-12-07 12:26:49,825 INFO L73 IsDeterministic]: Start isDeterministic. Operand 226 states and 308 transitions. [2019-12-07 12:26:49,826 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 12:26:49,826 INFO L688 BuchiCegarLoop]: Abstraction has 226 states and 308 transitions. [2019-12-07 12:26:49,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states and 308 transitions. [2019-12-07 12:26:49,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2019-12-07 12:26:49,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2019-12-07 12:26:49,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 308 transitions. [2019-12-07 12:26:49,835 INFO L711 BuchiCegarLoop]: Abstraction has 226 states and 308 transitions. [2019-12-07 12:26:49,836 INFO L591 BuchiCegarLoop]: Abstraction has 226 states and 308 transitions. [2019-12-07 12:26:49,836 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 12:26:49,836 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 226 states and 308 transitions. [2019-12-07 12:26:49,837 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 160 [2019-12-07 12:26:49,837 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 12:26:49,837 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 12:26:49,838 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:26:49,838 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, 1] [2019-12-07 12:26:49,838 INFO L794 eck$LassoCheckResult]: Stem: 1031#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(13);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(102, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(102, #t~string9.base, 2 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 3 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(80, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(117, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(109, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(112, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(32, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string19.base, #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 1 + #t~string19.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(21);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(21);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(25);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(77, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(101, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(116, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(104, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string70.base, #t~string70.offset, 1);call write~init~int(82, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(73, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(84, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 4 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(75, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 893#L-1 havoc main_#res;havoc main_#t~ret25, main_~retValue_acc~3, main_~tmp~5;havoc main_~retValue_acc~3;havoc main_~tmp~5; 891#L833 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 892#L841 main_#t~ret25 := valid_product_#res;main_~tmp~5 := main_#t~ret25;havoc main_#t~ret25; 896#L431 assume 0 != main_~tmp~5; 921#L403 ~switchedOnBeforeTS~0 := 0; 942#L853 havoc test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1035#L874-1 [2019-12-07 12:26:49,838 INFO L796 eck$LassoCheckResult]: Loop: 1035#L874-1 assume !false; 901#L288 assume test_~splverifierCounter~0 < 4; 902#L289 test_~tmp~4 := test_#t~nondet21;havoc test_#t~nondet21; 1030#L297 assume !(0 != test_~tmp~4); 1024#L297-1 test_~tmp___0~1 := test_#t~nondet22;havoc test_#t~nondet22; 1029#L307 assume !(0 != test_~tmp___0~1); 1094#L307-1 test_~tmp___2~0 := test_#t~nondet23;havoc test_#t~nondet23; 1092#L317 assume 0 != test_~tmp___2~0; 1091#L323-1 havoc __utac_acc__Specification5_spec__2_#t~ret62;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 971#L199 __utac_acc__Specification5_spec__2_#t~ret62 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret62;havoc __utac_acc__Specification5_spec__2_#t~ret62; 940#L863 assume !(0 != ~pumpRunning~0); 941#L71 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 1034#L129 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret0, processEnvironment__wrappee__methaneQuery_~tmp~0;havoc processEnvironment__wrappee__methaneQuery_~tmp~0; 927#L103-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret20, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 928#L979-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 929#L984-1 isHighWaterLevel_#t~ret20 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret20;havoc isHighWaterLevel_#t~ret20; 930#L248-3 assume 0 != isHighWaterLevel_~tmp~3;isHighWaterLevel_~tmp___0~0 := 0; 1001#L248-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 974#L254-1 processEnvironment__wrappee__methaneQuery_#t~ret0 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~0 := processEnvironment__wrappee__methaneQuery_#t~ret0;havoc processEnvironment__wrappee__methaneQuery_#t~ret0; 975#L107-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~0); 960#L78 havoc __utac_acc__Specification5_spec__3_#t~ret63, __utac_acc__Specification5_spec__3_#t~ret64, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 987#L971 __utac_acc__Specification5_spec__3_#t~ret63 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret63;havoc __utac_acc__Specification5_spec__3_#t~ret63; 1039#L874 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9); 1035#L874-1 [2019-12-07 12:26:49,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:26:49,839 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-12-07 12:26:49,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:26:49,839 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899908762] [2019-12-07 12:26:49,839 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:26:49,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:26:49,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:26:49,886 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:26:49,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:26:49,886 INFO L82 PathProgramCache]: Analyzing trace with hash -1936550109, now seen corresponding path program 1 times [2019-12-07 12:26:49,887 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:26:49,887 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160849729] [2019-12-07 12:26:49,887 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:26:49,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:26:49,918 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 12:26:49,918 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160849729] [2019-12-07 12:26:49,918 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:26:49,918 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 12:26:49,919 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115334313] [2019-12-07 12:26:49,919 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 12:26:49,919 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:26:49,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 12:26:49,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 12:26:49,919 INFO L87 Difference]: Start difference. First operand 226 states and 308 transitions. cyclomatic complexity: 85 Second operand 5 states. [2019-12-07 12:26:50,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:26:50,070 INFO L93 Difference]: Finished difference Result 925 states and 1267 transitions. [2019-12-07 12:26:50,070 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 12:26:50,070 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 925 states and 1267 transitions. [2019-12-07 12:26:50,079 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 647 [2019-12-07 12:26:50,087 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 925 states to 925 states and 1267 transitions. [2019-12-07 12:26:50,088 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 925 [2019-12-07 12:26:50,089 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 925 [2019-12-07 12:26:50,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 925 states and 1267 transitions. [2019-12-07 12:26:50,091 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 12:26:50,092 INFO L688 BuchiCegarLoop]: Abstraction has 925 states and 1267 transitions. [2019-12-07 12:26:50,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states and 1267 transitions. [2019-12-07 12:26:50,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 442. [2019-12-07 12:26:50,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2019-12-07 12:26:50,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 594 transitions. [2019-12-07 12:26:50,112 INFO L711 BuchiCegarLoop]: Abstraction has 442 states and 594 transitions. [2019-12-07 12:26:50,112 INFO L591 BuchiCegarLoop]: Abstraction has 442 states and 594 transitions. [2019-12-07 12:26:50,112 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-12-07 12:26:50,113 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 442 states and 594 transitions. [2019-12-07 12:26:50,115 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 318 [2019-12-07 12:26:50,115 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 12:26:50,115 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 12:26:50,116 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:26:50,117 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, 1, 1, 1] [2019-12-07 12:26:50,117 INFO L794 eck$LassoCheckResult]: Stem: 2206#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(13);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(102, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(102, #t~string9.base, 2 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 3 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(80, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(117, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(109, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(112, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(32, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string19.base, #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 1 + #t~string19.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(21);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(21);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(25);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(77, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(101, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(116, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(104, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string70.base, #t~string70.offset, 1);call write~init~int(82, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(73, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(84, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 4 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(75, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 2063#L-1 havoc main_#res;havoc main_#t~ret25, main_~retValue_acc~3, main_~tmp~5;havoc main_~retValue_acc~3;havoc main_~tmp~5; 2061#L833 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 2062#L841 main_#t~ret25 := valid_product_#res;main_~tmp~5 := main_#t~ret25;havoc main_#t~ret25; 2066#L431 assume 0 != main_~tmp~5; 2089#L403 ~switchedOnBeforeTS~0 := 0; 2110#L853 havoc test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2213#L874-1 [2019-12-07 12:26:50,117 INFO L796 eck$LassoCheckResult]: Loop: 2213#L874-1 assume !false; 2390#L288 assume test_~splverifierCounter~0 < 4; 2391#L289 test_~tmp~4 := test_#t~nondet21;havoc test_#t~nondet21; 2456#L297 assume !(0 != test_~tmp~4); 2453#L297-1 test_~tmp___0~1 := test_#t~nondet22;havoc test_#t~nondet22; 2452#L307 assume !(0 != test_~tmp___0~1); 2450#L307-1 test_~tmp___2~0 := test_#t~nondet23;havoc test_#t~nondet23; 2449#L317 assume 0 != test_~tmp___2~0; 2448#L323-1 havoc __utac_acc__Specification5_spec__2_#t~ret62;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 2459#L199 __utac_acc__Specification5_spec__2_#t~ret62 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret62;havoc __utac_acc__Specification5_spec__2_#t~ret62; 2458#L863 assume !(0 != ~pumpRunning~0); 2211#L71 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 2212#L129 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret0, processEnvironment__wrappee__methaneQuery_~tmp~0;havoc processEnvironment__wrappee__methaneQuery_~tmp~0; 2095#L103-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret20, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 2096#L979-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 2097#L984-1 isHighWaterLevel_#t~ret20 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret20;havoc isHighWaterLevel_#t~ret20; 2098#L248-3 assume 0 != isHighWaterLevel_~tmp~3;isHighWaterLevel_~tmp___0~0 := 0; 2173#L248-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 2144#L254-1 processEnvironment__wrappee__methaneQuery_#t~ret0 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~0 := processEnvironment__wrappee__methaneQuery_#t~ret0;havoc processEnvironment__wrappee__methaneQuery_#t~ret0; 2145#L107-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~0); 2128#L78 havoc __utac_acc__Specification5_spec__3_#t~ret63, __utac_acc__Specification5_spec__3_#t~ret64, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 2401#L971 __utac_acc__Specification5_spec__3_#t~ret63 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret63;havoc __utac_acc__Specification5_spec__3_#t~ret63; 2397#L874 assume 2 != __utac_acc__Specification5_spec__3_~tmp~9;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 2398#L199-1 __utac_acc__Specification5_spec__3_#t~ret64 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~2 := __utac_acc__Specification5_spec__3_#t~ret64;havoc __utac_acc__Specification5_spec__3_#t~ret64; 2394#L878 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2); 2213#L874-1 [2019-12-07 12:26:50,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:26:50,118 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2019-12-07 12:26:50,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:26:50,118 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154125194] [2019-12-07 12:26:50,118 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:26:50,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:26:50,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:26:50,187 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:26:50,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:26:50,188 INFO L82 PathProgramCache]: Analyzing trace with hash -1303826978, now seen corresponding path program 1 times [2019-12-07 12:26:50,188 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:26:50,188 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371988067] [2019-12-07 12:26:50,188 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:26:50,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:26:50,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:26:50,199 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:26:50,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:26:50,200 INFO L82 PathProgramCache]: Analyzing trace with hash -1367253160, now seen corresponding path program 1 times [2019-12-07 12:26:50,200 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:26:50,200 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280688014] [2019-12-07 12:26:50,200 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:26:50,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:26:50,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:26:50,253 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:26:50,355 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2019-12-07 12:27:18,294 WARN L192 SmtUtils]: Spent 27.90 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-12-07 12:27:31,042 WARN L192 SmtUtils]: Spent 12.74 s on a formula simplification that was a NOOP. DAG size: 402 [2019-12-07 12:27:31,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 12:27:31 BoogieIcfgContainer [2019-12-07 12:27:31,097 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 12:27:31,098 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 12:27:31,098 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 12:27:31,098 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 12:27:31,098 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:26:48" (3/4) ... [2019-12-07 12:27:31,100 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-12-07 12:27:31,136 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_015c2bea-604e-45e4-8b9f-673cb64fdbb3/bin/uautomizer/witness.graphml [2019-12-07 12:27:31,137 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 12:27:31,138 INFO L168 Benchmark]: Toolchain (without parser) took 43061.33 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 943.4 MB in the beginning and 913.7 MB in the end (delta: 29.6 MB). Peak memory consumption was 135.5 MB. Max. memory is 11.5 GB. [2019-12-07 12:27:31,138 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:27:31,138 INFO L168 Benchmark]: CACSL2BoogieTranslator took 330.75 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 89.7 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -134.2 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-12-07 12:27:31,138 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.92 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 12:27:31,139 INFO L168 Benchmark]: Boogie Preprocessor took 33.31 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 12:27:31,139 INFO L168 Benchmark]: RCFGBuilder took 475.30 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 990.7 MB in the end (delta: 70.7 MB). Peak memory consumption was 70.7 MB. Max. memory is 11.5 GB. [2019-12-07 12:27:31,139 INFO L168 Benchmark]: BuchiAutomizer took 42132.81 ms. Allocated memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.3 MB). Free memory was 990.7 MB in the beginning and 922.0 MB in the end (delta: 68.7 MB). Peak memory consumption was 232.8 MB. Max. memory is 11.5 GB. [2019-12-07 12:27:31,139 INFO L168 Benchmark]: Witness Printer took 39.05 ms. Allocated memory is still 1.1 GB. Free memory was 922.0 MB in the beginning and 913.7 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. [2019-12-07 12:27:31,141 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 330.75 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 89.7 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -134.2 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.92 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 33.31 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 475.30 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 990.7 MB in the end (delta: 70.7 MB). Peak memory consumption was 70.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 42132.81 ms. Allocated memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.3 MB). Free memory was 990.7 MB in the beginning and 922.0 MB in the end (delta: 68.7 MB). Peak memory consumption was 232.8 MB. Max. memory is 11.5 GB. * Witness Printer took 39.05 ms. Allocated memory is still 1.1 GB. Free memory was 922.0 MB in the beginning and 913.7 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 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 6 locations. The remainder module has 442 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 42.0s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 41.5s. Construction of modules took 0.2s. 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, 608 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 442 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 663 SDtfs, 1791 SDslu, 1810 SDs, 0 SdLazy, 209 SolverSat, 62 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 287]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=780} State at position 1 is {NULL=793, NULL=0, NULL=0, NULL=804, NULL=0, retValue_acc=1, NULL=780, NULL=797, retValue_acc=0, NULL=0, NULL=0, NULL=782, NULL=803, NULL=800, NULL=787, methaneLevelCritical=0, tmp=1, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@516e6931=0, tmp=0, NULL=0, retValue_acc=0, NULL=0, NULL=802, tmp___1=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, NULL=798, \result=0, NULL=784, NULL=794, NULL=0, systemActive=1, waterLevel=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@74f1dee4=0, NULL=799, NULL=0, \result=0, NULL=790, NULL=792, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b03c631=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@374e1509=0, head=0, pumpRunning=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1e522e2f=0, NULL=783, NULL=788, \result=0, NULL=781, NULL=0, NULL=801, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57ced873=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43968c42=59, tmp=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@124c812e=0, \result=1, NULL=795, NULL=0, retValue_acc=1, tmp=1, NULL=0, NULL=791, tmp___2=59, retValue_acc=1, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, NULL=0, NULL=796, NULL=786, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5f985c3c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2cbe6b0a=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@eaf52f2=0, head=0, retValue_acc=0, tmp=0, NULL=789, NULL=0, NULL=0, NULL=805, NULL=785, NULL=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L59] int pumpRunning = 0; [L60] int systemActive = 1; [L344] int cleanupTimeShifts = 4; [L614] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L847] int switchedOnBeforeTS ; [L896] int waterLevel = 1; [L897] int methaneLevelCritical = 0; [L422] int retValue_acc ; [L423] int tmp ; [L837] int retValue_acc ; [L840] retValue_acc = 1 [L841] return (retValue_acc); [L429] tmp = valid_product() [L431] COND TRUE \read(tmp) [L852] switchedOnBeforeTS = 0 [L278] int splverifierCounter ; [L279] int tmp ; [L280] int tmp___0 ; [L281] int tmp___1 ; [L282] int tmp___2 ; [L285] splverifierCounter = 0 Loop: [L287] COND TRUE 1 [L289] COND TRUE splverifierCounter < 4 [L295] tmp = __VERIFIER_nondet_int() [L297] COND FALSE !(\read(tmp)) [L305] tmp___0 = __VERIFIER_nondet_int() [L307] COND FALSE !(\read(tmp___0)) [L315] tmp___2 = __VERIFIER_nondet_int() [L317] COND TRUE \read(tmp___2) [L195] int retValue_acc ; [L198] retValue_acc = pumpRunning [L199] return (retValue_acc); [L861] switchedOnBeforeTS = isPumpRunning() [L71] COND FALSE !(\read(pumpRunning)) [L78] COND TRUE \read(systemActive) [L126] int tmp ; [L129] COND FALSE !(\read(pumpRunning)) [L100] int tmp ; [L103] COND TRUE ! pumpRunning [L240] int retValue_acc ; [L241] int tmp ; [L242] int tmp___0 ; [L976] int retValue_acc ; [L979] COND TRUE waterLevel < 2 [L980] retValue_acc = 1 [L981] return (retValue_acc); [L246] tmp = isHighWaterSensorDry() [L248] COND TRUE \read(tmp) [L249] tmp___0 = 0 [L253] retValue_acc = tmp___0 [L254] return (retValue_acc); [L105] tmp = isHighWaterLevel() [L107] COND FALSE !(\read(tmp)) [L867] int tmp ; [L868] int tmp___0 ; [L967] int retValue_acc ; [L970] retValue_acc = waterLevel [L971] return (retValue_acc); [L872] tmp = getWaterLevel() [L874] COND TRUE tmp != 2 [L195] int retValue_acc ; [L198] retValue_acc = pumpRunning [L199] return (retValue_acc); [L876] tmp___0 = isPumpRunning() [L878] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...