./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product43.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_c3509cf0-9594-4914-bbe2-36bfbc88765a/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c3509cf0-9594-4914-bbe2-36bfbc88765a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c3509cf0-9594-4914-bbe2-36bfbc88765a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c3509cf0-9594-4914-bbe2-36bfbc88765a/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product43.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c3509cf0-9594-4914-bbe2-36bfbc88765a/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c3509cf0-9594-4914-bbe2-36bfbc88765a/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 77b70849cb3dcecd37b0edacca9651109dbc42ac .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 10:41:21,840 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 10:41:21,841 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 10:41:21,850 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 10:41:21,850 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 10:41:21,851 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 10:41:21,852 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 10:41:21,854 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 10:41:21,855 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 10:41:21,856 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 10:41:21,857 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 10:41:21,858 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 10:41:21,858 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 10:41:21,859 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 10:41:21,860 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 10:41:21,861 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 10:41:21,862 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 10:41:21,862 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 10:41:21,864 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 10:41:21,866 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 10:41:21,867 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 10:41:21,868 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 10:41:21,868 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 10:41:21,869 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 10:41:21,870 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 10:41:21,871 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 10:41:21,871 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 10:41:21,871 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 10:41:21,871 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 10:41:21,872 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 10:41:21,872 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 10:41:21,873 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 10:41:21,873 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 10:41:21,873 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 10:41:21,874 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 10:41:21,874 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 10:41:21,874 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 10:41:21,875 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 10:41:21,875 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 10:41:21,875 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 10:41:21,876 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 10:41:21,876 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c3509cf0-9594-4914-bbe2-36bfbc88765a/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 10:41:21,887 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 10:41:21,887 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 10:41:21,888 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 10:41:21,888 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 10:41:21,888 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 10:41:21,888 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 10:41:21,888 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 10:41:21,888 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 10:41:21,889 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 10:41:21,889 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 10:41:21,889 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 10:41:21,889 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 10:41:21,889 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 10:41:21,889 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 10:41:21,889 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 10:41:21,889 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 10:41:21,890 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 10:41:21,890 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 10:41:21,890 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 10:41:21,890 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 10:41:21,890 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 10:41:21,890 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 10:41:21,890 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 10:41:21,890 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 10:41:21,890 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 10:41:21,891 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 10:41:21,891 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 10:41:21,891 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 10:41:21,891 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 10:41:21,891 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 10:41:21,891 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 10:41:21,891 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 10:41:21,892 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 10:41:21,892 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_c3509cf0-9594-4914-bbe2-36bfbc88765a/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 -> 77b70849cb3dcecd37b0edacca9651109dbc42ac [2019-12-07 10:41:21,989 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 10:41:21,999 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 10:41:22,002 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 10:41:22,003 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 10:41:22,004 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 10:41:22,004 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c3509cf0-9594-4914-bbe2-36bfbc88765a/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product43.cil.c [2019-12-07 10:41:22,051 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c3509cf0-9594-4914-bbe2-36bfbc88765a/bin/uautomizer/data/f8eb8d128/ee5410b6bcb94947912f2e9c42865e06/FLAG623f9c470 [2019-12-07 10:41:22,425 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 10:41:22,426 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c3509cf0-9594-4914-bbe2-36bfbc88765a/sv-benchmarks/c/product-lines/minepump_spec5_product43.cil.c [2019-12-07 10:41:22,433 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c3509cf0-9594-4914-bbe2-36bfbc88765a/bin/uautomizer/data/f8eb8d128/ee5410b6bcb94947912f2e9c42865e06/FLAG623f9c470 [2019-12-07 10:41:22,442 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c3509cf0-9594-4914-bbe2-36bfbc88765a/bin/uautomizer/data/f8eb8d128/ee5410b6bcb94947912f2e9c42865e06 [2019-12-07 10:41:22,444 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 10:41:22,445 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 10:41:22,446 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 10:41:22,446 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 10:41:22,448 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 10:41:22,449 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:41:22" (1/1) ... [2019-12-07 10:41:22,450 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a913c82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:41:22, skipping insertion in model container [2019-12-07 10:41:22,450 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:41:22" (1/1) ... [2019-12-07 10:41:22,455 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 10:41:22,479 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 10:41:22,680 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:41:22,688 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 10:41:22,734 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:41:22,755 INFO L208 MainTranslator]: Completed translation [2019-12-07 10:41:22,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:41:22 WrapperNode [2019-12-07 10:41:22,755 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 10:41:22,756 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 10:41:22,756 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 10:41:22,756 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 10:41:22,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:41:22" (1/1) ... [2019-12-07 10:41:22,773 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:41:22" (1/1) ... [2019-12-07 10:41:22,800 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 10:41:22,801 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 10:41:22,801 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 10:41:22,801 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 10:41:22,807 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:41:22" (1/1) ... [2019-12-07 10:41:22,807 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:41:22" (1/1) ... [2019-12-07 10:41:22,810 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:41:22" (1/1) ... [2019-12-07 10:41:22,810 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:41:22" (1/1) ... [2019-12-07 10:41:22,818 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:41:22" (1/1) ... [2019-12-07 10:41:22,823 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:41:22" (1/1) ... [2019-12-07 10:41:22,825 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:41:22" (1/1) ... [2019-12-07 10:41:22,828 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 10:41:22,828 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 10:41:22,828 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 10:41:22,828 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 10:41:22,829 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:41:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c3509cf0-9594-4914-bbe2-36bfbc88765a/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 10:41:22,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 10:41:22,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-07 10:41:22,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 10:41:22,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 10:41:23,256 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 10:41:23,257 INFO L287 CfgBuilder]: Removed 132 assume(true) statements. [2019-12-07 10:41:23,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:41:23 BoogieIcfgContainer [2019-12-07 10:41:23,258 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 10:41:23,258 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 10:41:23,258 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 10:41:23,261 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 10:41:23,261 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 10:41:23,261 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 10:41:22" (1/3) ... [2019-12-07 10:41:23,262 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@459ff78d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 10:41:23, skipping insertion in model container [2019-12-07 10:41:23,262 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 10:41:23,262 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:41:22" (2/3) ... [2019-12-07 10:41:23,262 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@459ff78d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 10:41:23, skipping insertion in model container [2019-12-07 10:41:23,262 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 10:41:23,263 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:41:23" (3/3) ... [2019-12-07 10:41:23,264 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product43.cil.c [2019-12-07 10:41:23,293 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 10:41:23,294 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 10:41:23,294 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 10:41:23,294 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 10:41:23,294 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 10:41:23,294 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 10:41:23,294 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 10:41:23,294 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 10:41:23,308 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 95 states. [2019-12-07 10:41:23,326 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 61 [2019-12-07 10:41:23,326 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 10:41:23,326 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 10:41:23,331 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:41:23,331 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:41:23,331 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 10:41:23,331 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 95 states. [2019-12-07 10:41:23,336 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 61 [2019-12-07 10:41:23,336 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 10:41:23,336 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 10:41:23,336 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:41:23,337 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:41:23,340 INFO L794 eck$LassoCheckResult]: Stem: 41#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~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);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(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(80, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(117, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(109, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(112, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(32, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string58.base, #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 1 + #t~string58.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(77, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(101, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(116, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(104, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string65.base, #t~string65.offset, 1);call write~init~int(82, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(73, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(84, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 4 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(75, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0; 15#L-1true havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 51#L944true 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; 52#L952true main_#t~ret35 := valid_product_#res;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; 45#L498true assume 0 != main_~tmp~3; 58#L469true ~switchedOnBeforeTS~0 := 0; 76#L879true havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 30#L900-1true [2019-12-07 10:41:23,341 INFO L796 eck$LassoCheckResult]: Loop: 30#L900-1true assume !false; 55#L524true assume test_~splverifierCounter~0 < 4; 81#L525true test_~tmp~4 := test_#t~nondet36;havoc test_#t~nondet36; 12#L533true assume !(0 != test_~tmp~4); 88#L533-1true test_~tmp___0~0 := test_#t~nondet37;havoc test_#t~nondet37; 87#L543true assume !(0 != test_~tmp___0~0); 65#L543-1true test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 39#L553true assume 0 != test_~tmp___2~0; 4#L559-1true havoc __utac_acc__Specification5_spec__2_#t~ret70;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 17#L702true __utac_acc__Specification5_spec__2_#t~ret70 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret70;havoc __utac_acc__Specification5_spec__2_#t~ret70; 29#L889true assume !(0 != ~pumpRunning~0); 6#L599true assume !(0 != ~systemActive~0); 89#L606true havoc __utac_acc__Specification5_spec__3_#t~ret71, __utac_acc__Specification5_spec__3_#t~ret72, __utac_acc__Specification5_spec__3_~tmp~8, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~8;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 59#L853true __utac_acc__Specification5_spec__3_#t~ret71 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret71;havoc __utac_acc__Specification5_spec__3_#t~ret71; 27#L900true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8); 30#L900-1true [2019-12-07 10:41:23,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:41:23,344 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-12-07 10:41:23,350 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:41:23,350 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373545907] [2019-12-07 10:41:23,351 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:41:23,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:41:23,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:41:23,544 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:41:23,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:41:23,545 INFO L82 PathProgramCache]: Analyzing trace with hash -241460907, now seen corresponding path program 1 times [2019-12-07 10:41:23,545 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:41:23,545 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662972630] [2019-12-07 10:41:23,545 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:41:23,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:41:23,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:41:23,556 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:41:23,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:41:23,557 INFO L82 PathProgramCache]: Analyzing trace with hash 1692564303, now seen corresponding path program 1 times [2019-12-07 10:41:23,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:41:23,557 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724242417] [2019-12-07 10:41:23,557 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:41:23,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:41:23,639 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 10:41:23,639 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724242417] [2019-12-07 10:41:23,640 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:41:23,640 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 10:41:23,640 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147832711] [2019-12-07 10:41:23,702 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:41:23,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 10:41:23,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-12-07 10:41:23,714 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 6 states. [2019-12-07 10:41:23,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:41:23,828 INFO L93 Difference]: Finished difference Result 241 states and 334 transitions. [2019-12-07 10:41:23,828 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 10:41:23,830 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 241 states and 334 transitions. [2019-12-07 10:41:23,836 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 155 [2019-12-07 10:41:23,841 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 241 states to 220 states and 313 transitions. [2019-12-07 10:41:23,842 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 220 [2019-12-07 10:41:23,843 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 220 [2019-12-07 10:41:23,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 220 states and 313 transitions. [2019-12-07 10:41:23,845 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 10:41:23,845 INFO L688 BuchiCegarLoop]: Abstraction has 220 states and 313 transitions. [2019-12-07 10:41:23,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states and 313 transitions. [2019-12-07 10:41:23,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 137. [2019-12-07 10:41:23,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2019-12-07 10:41:23,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 194 transitions. [2019-12-07 10:41:23,871 INFO L711 BuchiCegarLoop]: Abstraction has 137 states and 194 transitions. [2019-12-07 10:41:23,871 INFO L591 BuchiCegarLoop]: Abstraction has 137 states and 194 transitions. [2019-12-07 10:41:23,871 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 10:41:23,871 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 137 states and 194 transitions. [2019-12-07 10:41:23,873 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 96 [2019-12-07 10:41:23,873 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 10:41:23,873 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 10:41:23,874 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:41:23,874 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:41:23,874 INFO L794 eck$LassoCheckResult]: Stem: 409#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~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);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(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(80, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(117, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(109, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(112, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(32, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string58.base, #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 1 + #t~string58.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(77, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(101, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(116, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(104, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string65.base, #t~string65.offset, 1);call write~init~int(82, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(73, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(84, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 4 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(75, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0; 373#L-1 havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 374#L944 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; 418#L952 main_#t~ret35 := valid_product_#res;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; 413#L498 assume 0 != main_~tmp~3; 414#L469 ~switchedOnBeforeTS~0 := 0; 423#L879 havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 393#L900-1 [2019-12-07 10:41:23,874 INFO L796 eck$LassoCheckResult]: Loop: 393#L900-1 assume !false; 397#L524 assume test_~splverifierCounter~0 < 4; 420#L525 test_~tmp~4 := test_#t~nondet36;havoc test_#t~nondet36; 368#L533 assume !(0 != test_~tmp~4); 370#L533-1 test_~tmp___0~0 := test_#t~nondet37;havoc test_#t~nondet37; 442#L543 assume !(0 != test_~tmp___0~0); 381#L543-1 test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 407#L553 assume 0 != test_~tmp___2~0; 356#L559-1 havoc __utac_acc__Specification5_spec__2_#t~ret70;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 357#L702 __utac_acc__Specification5_spec__2_#t~ret70 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret70;havoc __utac_acc__Specification5_spec__2_#t~ret70; 377#L889 assume !(0 != ~pumpRunning~0); 360#L599 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret40, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 361#L631 assume !(0 == ~pumpRunning~0); 437#L606 havoc __utac_acc__Specification5_spec__3_#t~ret71, __utac_acc__Specification5_spec__3_#t~ret72, __utac_acc__Specification5_spec__3_~tmp~8, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~8;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 424#L853 __utac_acc__Specification5_spec__3_#t~ret71 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret71;havoc __utac_acc__Specification5_spec__3_#t~ret71; 392#L900 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8); 393#L900-1 [2019-12-07 10:41:23,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:41:23,875 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-12-07 10:41:23,875 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:41:23,875 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028144180] [2019-12-07 10:41:23,875 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:41:23,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:41:23,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:41:23,936 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:41:23,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:41:23,937 INFO L82 PathProgramCache]: Analyzing trace with hash 1062877059, now seen corresponding path program 1 times [2019-12-07 10:41:23,937 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:41:23,937 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986309882] [2019-12-07 10:41:23,937 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:41:23,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:41:23,945 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 10:41:23,945 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986309882] [2019-12-07 10:41:23,945 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:41:23,945 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 10:41:23,946 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958393142] [2019-12-07 10:41:23,946 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 10:41:23,946 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:41:23,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 10:41:23,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 10:41:23,946 INFO L87 Difference]: Start difference. First operand 137 states and 194 transitions. cyclomatic complexity: 60 Second operand 3 states. [2019-12-07 10:41:23,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:41:23,999 INFO L93 Difference]: Finished difference Result 184 states and 248 transitions. [2019-12-07 10:41:23,999 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 10:41:24,000 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 184 states and 248 transitions. [2019-12-07 10:41:24,003 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 132 [2019-12-07 10:41:24,005 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 184 states to 184 states and 248 transitions. [2019-12-07 10:41:24,005 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 184 [2019-12-07 10:41:24,006 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 184 [2019-12-07 10:41:24,006 INFO L73 IsDeterministic]: Start isDeterministic. Operand 184 states and 248 transitions. [2019-12-07 10:41:24,007 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 10:41:24,007 INFO L688 BuchiCegarLoop]: Abstraction has 184 states and 248 transitions. [2019-12-07 10:41:24,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states and 248 transitions. [2019-12-07 10:41:24,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2019-12-07 10:41:24,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2019-12-07 10:41:24,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 248 transitions. [2019-12-07 10:41:24,016 INFO L711 BuchiCegarLoop]: Abstraction has 184 states and 248 transitions. [2019-12-07 10:41:24,016 INFO L591 BuchiCegarLoop]: Abstraction has 184 states and 248 transitions. [2019-12-07 10:41:24,016 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 10:41:24,016 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 184 states and 248 transitions. [2019-12-07 10:41:24,017 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 132 [2019-12-07 10:41:24,018 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 10:41:24,018 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 10:41:24,019 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:41:24,019 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 10:41:24,019 INFO L794 eck$LassoCheckResult]: Stem: 737#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~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);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(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(80, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(117, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(109, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(112, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(32, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string58.base, #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 1 + #t~string58.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(77, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(101, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(116, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(104, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string65.base, #t~string65.offset, 1);call write~init~int(82, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(73, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(84, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 4 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(75, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0; 702#L-1 havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 703#L944 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; 746#L952 main_#t~ret35 := valid_product_#res;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; 740#L498 assume 0 != main_~tmp~3; 741#L469 ~switchedOnBeforeTS~0 := 0; 756#L879 havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 773#L900-1 [2019-12-07 10:41:24,019 INFO L796 eck$LassoCheckResult]: Loop: 773#L900-1 assume !false; 853#L524 assume test_~splverifierCounter~0 < 4; 852#L525 test_~tmp~4 := test_#t~nondet36;havoc test_#t~nondet36; 851#L533 assume !(0 != test_~tmp~4); 781#L533-1 test_~tmp___0~0 := test_#t~nondet37;havoc test_#t~nondet37; 780#L543 assume !(0 != test_~tmp___0~0); 708#L543-1 test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 734#L553 assume 0 != test_~tmp___2~0; 683#L559-1 havoc __utac_acc__Specification5_spec__2_#t~ret70;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 684#L702 __utac_acc__Specification5_spec__2_#t~ret70 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret70;havoc __utac_acc__Specification5_spec__2_#t~ret70; 704#L889 assume !(0 != ~pumpRunning~0); 687#L599 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret40, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 688#L631 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret59, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~9;havoc isHighWaterSensorDry_~retValue_acc~9; 765#L861 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~9; 685#L866 isHighWaterLevel_#t~ret59 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret59;havoc isHighWaterLevel_#t~ret59; 686#L751 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 747#L751-2 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 731#L757 processEnvironment_#t~ret40 := isHighWaterLevel_#res;processEnvironment_~tmp~5 := processEnvironment_#t~ret40;havoc processEnvironment_#t~ret40; 732#L635 assume !(0 != processEnvironment_~tmp~5); 784#L606 havoc __utac_acc__Specification5_spec__3_#t~ret71, __utac_acc__Specification5_spec__3_#t~ret72, __utac_acc__Specification5_spec__3_~tmp~8, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~8;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 858#L853 __utac_acc__Specification5_spec__3_#t~ret71 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret71;havoc __utac_acc__Specification5_spec__3_#t~ret71; 856#L900 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8); 773#L900-1 [2019-12-07 10:41:24,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:41:24,020 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-12-07 10:41:24,020 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:41:24,020 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784430487] [2019-12-07 10:41:24,020 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:41:24,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:41:24,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:41:24,079 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:41:24,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:41:24,079 INFO L82 PathProgramCache]: Analyzing trace with hash 1275820079, now seen corresponding path program 1 times [2019-12-07 10:41:24,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:41:24,080 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313138771] [2019-12-07 10:41:24,080 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:41:24,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:41:24,100 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 10:41:24,101 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313138771] [2019-12-07 10:41:24,101 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:41:24,101 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 10:41:24,101 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056029623] [2019-12-07 10:41:24,101 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 10:41:24,101 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:41:24,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 10:41:24,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 10:41:24,102 INFO L87 Difference]: Start difference. First operand 184 states and 248 transitions. cyclomatic complexity: 67 Second operand 5 states. [2019-12-07 10:41:24,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:41:24,207 INFO L93 Difference]: Finished difference Result 476 states and 629 transitions. [2019-12-07 10:41:24,207 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 10:41:24,208 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 476 states and 629 transitions. [2019-12-07 10:41:24,211 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 325 [2019-12-07 10:41:24,214 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 476 states to 476 states and 629 transitions. [2019-12-07 10:41:24,214 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 476 [2019-12-07 10:41:24,215 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 476 [2019-12-07 10:41:24,215 INFO L73 IsDeterministic]: Start isDeterministic. Operand 476 states and 629 transitions. [2019-12-07 10:41:24,216 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 10:41:24,216 INFO L688 BuchiCegarLoop]: Abstraction has 476 states and 629 transitions. [2019-12-07 10:41:24,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states and 629 transitions. [2019-12-07 10:41:24,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 361. [2019-12-07 10:41:24,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2019-12-07 10:41:24,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 474 transitions. [2019-12-07 10:41:24,230 INFO L711 BuchiCegarLoop]: Abstraction has 361 states and 474 transitions. [2019-12-07 10:41:24,230 INFO L591 BuchiCegarLoop]: Abstraction has 361 states and 474 transitions. [2019-12-07 10:41:24,230 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-12-07 10:41:24,230 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 361 states and 474 transitions. [2019-12-07 10:41:24,232 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 264 [2019-12-07 10:41:24,232 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 10:41:24,232 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 10:41:24,232 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:41:24,232 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] [2019-12-07 10:41:24,233 INFO L794 eck$LassoCheckResult]: Stem: 1411#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~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);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(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(80, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(117, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(109, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(112, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(32, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string58.base, #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 1 + #t~string58.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(77, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(101, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(116, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(104, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string65.base, #t~string65.offset, 1);call write~init~int(82, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(73, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(84, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 4 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(75, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0; 1378#L-1 havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 1379#L944 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; 1421#L952 main_#t~ret35 := valid_product_#res;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; 1415#L498 assume 0 != main_~tmp~3; 1416#L469 ~switchedOnBeforeTS~0 := 0; 1428#L879 havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1398#L900-1 [2019-12-07 10:41:24,233 INFO L796 eck$LassoCheckResult]: Loop: 1398#L900-1 assume !false; 1399#L524 assume test_~splverifierCounter~0 < 4; 1425#L525 test_~tmp~4 := test_#t~nondet36;havoc test_#t~nondet36; 1696#L533 assume !(0 != test_~tmp~4); 1695#L533-1 test_~tmp___0~0 := test_#t~nondet37;havoc test_#t~nondet37; 1694#L543 assume !(0 != test_~tmp___0~0); 1692#L543-1 test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 1408#L553 assume 0 != test_~tmp___2~0; 1359#L559-1 havoc __utac_acc__Specification5_spec__2_#t~ret70;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 1360#L702 __utac_acc__Specification5_spec__2_#t~ret70 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret70;havoc __utac_acc__Specification5_spec__2_#t~ret70; 1380#L889 assume !(0 != ~pumpRunning~0); 1363#L599 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret40, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 1364#L631 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret59, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~9;havoc isHighWaterSensorDry_~retValue_acc~9; 1440#L861 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~9; 1441#L866 isHighWaterLevel_#t~ret59 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret59;havoc isHighWaterLevel_#t~ret59; 1587#L751 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 1584#L751-2 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 1583#L757 processEnvironment_#t~ret40 := isHighWaterLevel_#res;processEnvironment_~tmp~5 := processEnvironment_#t~ret40;havoc processEnvironment_#t~ret40; 1582#L635 assume !(0 != processEnvironment_~tmp~5); 1458#L606 havoc __utac_acc__Specification5_spec__3_#t~ret71, __utac_acc__Specification5_spec__3_#t~ret72, __utac_acc__Specification5_spec__3_~tmp~8, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~8;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 1429#L853 __utac_acc__Specification5_spec__3_#t~ret71 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret71;havoc __utac_acc__Specification5_spec__3_#t~ret71; 1430#L900 assume 2 != __utac_acc__Specification5_spec__3_~tmp~8;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 1681#L702-1 __utac_acc__Specification5_spec__3_#t~ret72 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~2 := __utac_acc__Specification5_spec__3_#t~ret72;havoc __utac_acc__Specification5_spec__3_#t~ret72; 1412#L904 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2); 1398#L900-1 [2019-12-07 10:41:24,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:41:24,233 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2019-12-07 10:41:24,233 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:41:24,233 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324307031] [2019-12-07 10:41:24,234 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:41:24,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:41:24,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:41:24,277 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:41:24,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:41:24,277 INFO L82 PathProgramCache]: Analyzing trace with hash 1997403210, now seen corresponding path program 1 times [2019-12-07 10:41:24,278 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:41:24,278 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738802309] [2019-12-07 10:41:24,278 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:41:24,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:41:24,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:41:24,287 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:41:24,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:41:24,288 INFO L82 PathProgramCache]: Analyzing trace with hash 1856809872, now seen corresponding path program 1 times [2019-12-07 10:41:24,288 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:41:24,288 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404673841] [2019-12-07 10:41:24,288 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:41:24,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:41:24,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:41:24,336 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:41:24,441 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2019-12-07 10:41:49,829 WARN L192 SmtUtils]: Spent 25.34 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-12-07 10:42:02,386 WARN L192 SmtUtils]: Spent 12.55 s on a formula simplification that was a NOOP. DAG size: 402 [2019-12-07 10:42:02,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 10:42:02 BoogieIcfgContainer [2019-12-07 10:42:02,456 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 10:42:02,456 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 10:42:02,457 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 10:42:02,457 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 10:42:02,457 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:41:23" (3/4) ... [2019-12-07 10:42:02,459 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-12-07 10:42:02,495 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c3509cf0-9594-4914-bbe2-36bfbc88765a/bin/uautomizer/witness.graphml [2019-12-07 10:42:02,495 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 10:42:02,496 INFO L168 Benchmark]: Toolchain (without parser) took 40051.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 938.0 MB in the beginning and 984.1 MB in the end (delta: -46.1 MB). Peak memory consumption was 109.1 MB. Max. memory is 11.5 GB. [2019-12-07 10:42:02,497 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:42:02,497 INFO L168 Benchmark]: CACSL2BoogieTranslator took 309.49 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.0 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -148.3 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-12-07 10:42:02,497 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.05 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 10:42:02,497 INFO L168 Benchmark]: Boogie Preprocessor took 27.18 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 10:42:02,498 INFO L168 Benchmark]: RCFGBuilder took 429.87 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: 66.2 MB). Peak memory consumption was 66.2 MB. Max. memory is 11.5 GB. [2019-12-07 10:42:02,498 INFO L168 Benchmark]: BuchiAutomizer took 39197.88 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 58.2 MB). Free memory was 1.0 GB in the beginning and 993.4 MB in the end (delta: 16.0 MB). Peak memory consumption was 240.0 MB. Max. memory is 11.5 GB. [2019-12-07 10:42:02,498 INFO L168 Benchmark]: Witness Printer took 38.97 ms. Allocated memory is still 1.2 GB. Free memory was 993.4 MB in the beginning and 984.1 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 11.5 GB. [2019-12-07 10:42:02,501 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 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 309.49 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.0 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -148.3 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 45.05 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 27.18 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 429.87 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: 66.2 MB). Peak memory consumption was 66.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 39197.88 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 58.2 MB). Free memory was 1.0 GB in the beginning and 993.4 MB in the end (delta: 16.0 MB). Peak memory consumption was 240.0 MB. Max. memory is 11.5 GB. * Witness Printer took 38.97 ms. Allocated memory is still 1.2 GB. Free memory was 993.4 MB in the beginning and 984.1 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 361 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 39.1s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 38.7s. Construction of modules took 0.1s. 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, 198 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 361 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 422 SDtfs, 993 SDslu, 1083 SDs, 0 SdLazy, 138 SolverSat, 53 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s 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: 523]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=9461} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=9461, NULL=9473, retValue_acc=0, NULL=0, NULL=0, NULL=9480, NULL=9483, methaneLevelCritical=0, tmp___0=0, retValue_acc=1, tmp=1, NULL=0, tmp=0, NULL=0, NULL=0, tmp___1=0, NULL=9484, retValue_acc=0, NULL=9465, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4dfb06f0=0, NULL=9479, NULL=9475, cleanupTimeShifts=4, switchedOnBeforeTS=0, NULL=9467, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@12721265=0, NULL=9486, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@561f4be2=70, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@38b6661b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5ac717ca=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@16281ca7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@69eb376a=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=9477, \result=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7c9b0658=0, NULL=9481, \result=0, NULL=9469, NULL=0, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=0, \result=1, retValue_acc=1, NULL=9474, head=0, pumpRunning=0, tmp___0=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@61574512=0, NULL=9476, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@65069be3=0, NULL=9478, tmp=1, NULL=0, NULL=0, \result=1, NULL=9468, NULL=9487, NULL=9472, NULL=9488, retValue_acc=1, tmp=1, tmp___2=70, NULL=9485, splverifierCounter=0, head=0, NULL=0, tmp=0, NULL=9482, NULL=9463, NULL=0, NULL=9471, NULL=0, NULL=0, NULL=9466, NULL=0, NULL=9470, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L406] int cleanupTimeShifts = 4; [L587] int pumpRunning = 0; [L588] int systemActive = 1; [L778] int waterLevel = 1; [L779] int methaneLevelCritical = 0; [L873] int switchedOnBeforeTS ; [L489] int retValue_acc ; [L490] int tmp ; [L948] int retValue_acc ; [L951] retValue_acc = 1 [L952] return (retValue_acc); [L496] tmp = valid_product() [L498] COND TRUE \read(tmp) [L878] switchedOnBeforeTS = 0 [L514] int splverifierCounter ; [L515] int tmp ; [L516] int tmp___0 ; [L517] int tmp___1 ; [L518] int tmp___2 ; [L521] splverifierCounter = 0 Loop: [L523] COND TRUE 1 [L525] COND TRUE splverifierCounter < 4 [L531] tmp = __VERIFIER_nondet_int() [L533] COND FALSE !(\read(tmp)) [L541] tmp___0 = __VERIFIER_nondet_int() [L543] COND FALSE !(\read(tmp___0)) [L551] tmp___2 = __VERIFIER_nondet_int() [L553] COND TRUE \read(tmp___2) [L698] int retValue_acc ; [L701] retValue_acc = pumpRunning [L702] return (retValue_acc); [L887] switchedOnBeforeTS = isPumpRunning() [L599] COND FALSE !(\read(pumpRunning)) [L606] COND TRUE \read(systemActive) [L628] int tmp ; [L631] COND TRUE ! pumpRunning [L743] int retValue_acc ; [L744] int tmp ; [L745] int tmp___0 ; [L858] int retValue_acc ; [L861] COND TRUE waterLevel < 2 [L862] retValue_acc = 1 [L863] return (retValue_acc); [L749] tmp = isHighWaterSensorDry() [L751] COND TRUE \read(tmp) [L752] tmp___0 = 0 [L756] retValue_acc = tmp___0 [L757] return (retValue_acc); [L633] tmp = isHighWaterLevel() [L635] COND FALSE !(\read(tmp)) [L893] int tmp ; [L894] int tmp___0 ; [L849] int retValue_acc ; [L852] retValue_acc = waterLevel [L853] return (retValue_acc); [L898] tmp = getWaterLevel() [L900] COND TRUE tmp != 2 [L698] int retValue_acc ; [L701] retValue_acc = pumpRunning [L702] return (retValue_acc); [L902] tmp___0 = isPumpRunning() [L904] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...