./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product63.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec5_product63.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 7c9d11b324245890faf2aa5cc0763c01a125dd6d ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-28 03:42:52,865 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 03:42:52,867 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 03:42:52,879 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 03:42:52,879 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 03:42:52,880 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 03:42:52,882 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 03:42:52,883 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 03:42:52,885 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 03:42:52,886 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 03:42:52,887 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 03:42:52,888 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 03:42:52,888 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 03:42:52,889 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 03:42:52,890 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 03:42:52,892 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 03:42:52,892 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 03:42:52,893 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 03:42:52,895 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 03:42:52,897 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 03:42:52,901 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 03:42:52,902 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 03:42:52,905 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 03:42:52,906 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 03:42:52,911 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 03:42:52,911 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 03:42:52,911 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 03:42:52,912 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 03:42:52,913 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 03:42:52,916 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 03:42:52,916 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 03:42:52,917 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 03:42:52,917 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 03:42:52,919 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 03:42:52,920 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 03:42:52,920 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 03:42:52,924 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 03:42:52,924 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 03:42:52,924 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 03:42:52,925 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 03:42:52,929 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 03:42:52,930 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 03:42:52,954 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 03:42:52,955 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 03:42:52,958 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 03:42:52,958 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 03:42:52,958 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 03:42:52,959 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 03:42:52,959 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 03:42:52,959 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 03:42:52,959 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 03:42:52,959 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 03:42:52,961 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 03:42:52,961 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 03:42:52,961 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 03:42:52,962 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 03:42:52,962 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 03:42:52,962 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 03:42:52,962 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 03:42:52,963 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 03:42:52,963 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 03:42:52,963 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 03:42:52,963 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 03:42:52,964 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 03:42:52,964 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 03:42:52,965 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 03:42:52,965 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 03:42:52,965 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 03:42:52,965 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 03:42:52,966 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 03:42:52,966 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 03:42:52,966 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 03:42:52,966 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 03:42:52,969 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 03:42:52,970 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 7c9d11b324245890faf2aa5cc0763c01a125dd6d [2019-11-28 03:42:53,276 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 03:42:53,288 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 03:42:53,292 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 03:42:53,293 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 03:42:53,294 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 03:42:53,294 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product63.cil.c [2019-11-28 03:42:53,361 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d233c046/241d7d57773444279114088a6e9401d5/FLAGb49d646df [2019-11-28 03:42:53,828 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 03:42:53,829 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product63.cil.c [2019-11-28 03:42:53,842 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d233c046/241d7d57773444279114088a6e9401d5/FLAGb49d646df [2019-11-28 03:42:54,181 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d233c046/241d7d57773444279114088a6e9401d5 [2019-11-28 03:42:54,187 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 03:42:54,189 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 03:42:54,189 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 03:42:54,190 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 03:42:54,193 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 03:42:54,194 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:42:54" (1/1) ... [2019-11-28 03:42:54,196 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ce269f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:54, skipping insertion in model container [2019-11-28 03:42:54,197 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:42:54" (1/1) ... [2019-11-28 03:42:54,203 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 03:42:54,258 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 03:42:54,651 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:42:54,664 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 03:42:54,807 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:42:54,850 INFO L208 MainTranslator]: Completed translation [2019-11-28 03:42:54,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:54 WrapperNode [2019-11-28 03:42:54,851 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 03:42:54,852 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 03:42:54,852 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 03:42:54,852 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 03:42:54,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:54" (1/1) ... [2019-11-28 03:42:54,878 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:54" (1/1) ... [2019-11-28 03:42:54,945 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 03:42:54,946 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 03:42:54,946 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 03:42:54,946 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 03:42:54,960 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:54" (1/1) ... [2019-11-28 03:42:54,960 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:54" (1/1) ... [2019-11-28 03:42:54,968 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:54" (1/1) ... [2019-11-28 03:42:54,969 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:54" (1/1) ... [2019-11-28 03:42:54,992 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:54" (1/1) ... [2019-11-28 03:42:55,006 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:54" (1/1) ... [2019-11-28 03:42:55,011 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:54" (1/1) ... [2019-11-28 03:42:55,023 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 03:42:55,025 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 03:42:55,027 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 03:42:55,027 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 03:42:55,028 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:42:55,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 03:42:55,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 03:42:55,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 03:42:55,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 03:42:56,075 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 03:42:56,076 INFO L297 CfgBuilder]: Removed 366 assume(true) statements. [2019-11-28 03:42:56,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:42:56 BoogieIcfgContainer [2019-11-28 03:42:56,077 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 03:42:56,078 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 03:42:56,078 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 03:42:56,081 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 03:42:56,082 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:42:56,083 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:42:54" (1/3) ... [2019-11-28 03:42:56,084 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5d19ab59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:42:56, skipping insertion in model container [2019-11-28 03:42:56,084 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:42:56,084 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:54" (2/3) ... [2019-11-28 03:42:56,085 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5d19ab59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:42:56, skipping insertion in model container [2019-11-28 03:42:56,085 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:42:56,085 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:42:56" (3/3) ... [2019-11-28 03:42:56,087 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product63.cil.c [2019-11-28 03:42:56,133 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 03:42:56,134 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 03:42:56,134 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 03:42:56,134 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 03:42:56,134 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 03:42:56,135 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 03:42:56,135 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 03:42:56,135 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 03:42:56,156 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 233 states. [2019-11-28 03:42:56,203 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 153 [2019-11-28 03:42:56,204 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:42:56,204 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:42:56,214 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:42:56,214 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:42:56,215 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 03:42:56,215 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 233 states. [2019-11-28 03:42:56,233 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 153 [2019-11-28 03:42:56,233 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:42:56,234 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:42:56,235 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:42:56,235 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:42:56,240 INFO L794 eck$LassoCheckResult]: Stem: 86#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(13);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string35.base, #t~string35.offset, 1);call write~init~int(77, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(101, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(116, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(104, #t~string35.base, 4 + #t~string35.offset, 1);call write~init~int(58, #t~string35.base, 5 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 6 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string37.base, #t~string37.offset, 1);call write~init~int(82, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(73, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(84, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 4 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string39.base, #t~string39.offset, 1);call write~init~int(75, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 2 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string41.base, #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 1 + #t~string41.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 9#L-1true havoc main_#res;havoc main_#t~ret8, main_~retValue_acc~2, main_~tmp~2;havoc main_~retValue_acc~2;havoc main_~tmp~2; 117#L117true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 25#L125true main_#t~ret8 := valid_product_#res;main_~tmp~2 := main_#t~ret8;havoc main_#t~ret8; 50#L295true assume 0 != main_~tmp~2; 106#L271true ~switchedOnBeforeTS~0 := 0; 87#L49true havoc test_#t~nondet4, test_#t~nondet5, test_#t~nondet6, test_#t~nondet7, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 22#L70-1true [2019-11-28 03:42:56,241 INFO L796 eck$LassoCheckResult]: Loop: 22#L70-1true assume !false; 137#L155true assume test_~splverifierCounter~0 < 4; 226#L156true test_~tmp~1 := test_#t~nondet4;havoc test_#t~nondet4; 20#L164true assume !(0 != test_~tmp~1); 18#L164-1true test_~tmp___0~1 := test_#t~nondet5;havoc test_#t~nondet5; 67#L174true assume !(0 != test_~tmp___0~1); 64#L174-1true test_~tmp___2~0 := test_#t~nondet6;havoc test_#t~nondet6; 220#L184true assume 0 != test_~tmp___2~0; 191#L190-1true havoc __utac_acc__Specification5_spec__2_#t~ret0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; 141#L480true __utac_acc__Specification5_spec__2_#t~ret0 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret0;havoc __utac_acc__Specification5_spec__2_#t~ret0; 23#L59true assume !(0 != ~pumpRunning~0); 129#L326true assume !(0 != ~systemActive~0); 203#L333true havoc __utac_acc__Specification5_spec__3_#t~ret1, __utac_acc__Specification5_spec__3_#t~ret2, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;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; 88#L649true __utac_acc__Specification5_spec__3_#t~ret1 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret1;havoc __utac_acc__Specification5_spec__3_#t~ret1; 24#L70true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 22#L70-1true [2019-11-28 03:42:56,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:42:56,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-11-28 03:42:56,256 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:42:56,256 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534076359] [2019-11-28 03:42:56,257 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:42:56,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:42:56,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:42:56,661 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:42:56,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:42:56,665 INFO L82 PathProgramCache]: Analyzing trace with hash -235396459, now seen corresponding path program 1 times [2019-11-28 03:42:56,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:42:56,666 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280865886] [2019-11-28 03:42:56,667 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:42:56,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:42:56,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:42:56,700 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:42:56,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:42:56,702 INFO L82 PathProgramCache]: Analyzing trace with hash 1698628751, now seen corresponding path program 1 times [2019-11-28 03:42:56,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:42:56,703 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820468991] [2019-11-28 03:42:56,703 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:42:56,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:42:56,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:42:56,892 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820468991] [2019-11-28 03:42:56,894 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:42:56,894 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 03:42:56,894 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356889390] [2019-11-28 03:42:57,112 WARN L192 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2019-11-28 03:42:57,122 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:42:57,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 03:42:57,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-28 03:42:57,141 INFO L87 Difference]: Start difference. First operand 233 states. Second operand 6 states. [2019-11-28 03:42:57,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:42:57,388 INFO L93 Difference]: Finished difference Result 517 states and 748 transitions. [2019-11-28 03:42:57,389 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 03:42:57,392 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 517 states and 748 transitions. [2019-11-28 03:42:57,408 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 339 [2019-11-28 03:42:57,426 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 517 states to 496 states and 727 transitions. [2019-11-28 03:42:57,428 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 496 [2019-11-28 03:42:57,431 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 496 [2019-11-28 03:42:57,432 INFO L73 IsDeterministic]: Start isDeterministic. Operand 496 states and 727 transitions. [2019-11-28 03:42:57,441 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:42:57,441 INFO L688 BuchiCegarLoop]: Abstraction has 496 states and 727 transitions. [2019-11-28 03:42:57,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states and 727 transitions. [2019-11-28 03:42:57,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 275. [2019-11-28 03:42:57,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 275 states. [2019-11-28 03:42:57,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 401 transitions. [2019-11-28 03:42:57,522 INFO L711 BuchiCegarLoop]: Abstraction has 275 states and 401 transitions. [2019-11-28 03:42:57,523 INFO L591 BuchiCegarLoop]: Abstraction has 275 states and 401 transitions. [2019-11-28 03:42:57,523 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 03:42:57,523 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 275 states and 401 transitions. [2019-11-28 03:42:57,527 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 188 [2019-11-28 03:42:57,527 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:42:57,528 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:42:57,532 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:42:57,532 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:42:57,532 INFO L794 eck$LassoCheckResult]: Stem: 913#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(13);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string35.base, #t~string35.offset, 1);call write~init~int(77, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(101, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(116, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(104, #t~string35.base, 4 + #t~string35.offset, 1);call write~init~int(58, #t~string35.base, 5 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 6 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string37.base, #t~string37.offset, 1);call write~init~int(82, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(73, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(84, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 4 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string39.base, #t~string39.offset, 1);call write~init~int(75, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 2 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string41.base, #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 1 + #t~string41.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 782#L-1 havoc main_#res;havoc main_#t~ret8, main_~retValue_acc~2, main_~tmp~2;havoc main_~retValue_acc~2;havoc main_~tmp~2; 783#L117 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 821#L125 main_#t~ret8 := valid_product_#res;main_~tmp~2 := main_#t~ret8;havoc main_#t~ret8; 822#L295 assume 0 != main_~tmp~2; 867#L271 ~switchedOnBeforeTS~0 := 0; 914#L49 havoc test_#t~nondet4, test_#t~nondet5, test_#t~nondet6, test_#t~nondet7, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 814#L70-1 [2019-11-28 03:42:57,533 INFO L796 eck$LassoCheckResult]: Loop: 814#L70-1 assume !false; 815#L155 assume test_~splverifierCounter~0 < 4; 964#L156 test_~tmp~1 := test_#t~nondet4;havoc test_#t~nondet4; 809#L164 assume !(0 != test_~tmp~1); 805#L164-1 test_~tmp___0~1 := test_#t~nondet5;havoc test_#t~nondet5; 806#L174 assume !(0 != test_~tmp___0~1); 834#L174-1 test_~tmp___2~0 := test_#t~nondet6;havoc test_#t~nondet6; 888#L184 assume 0 != test_~tmp___2~0; 992#L190-1 havoc __utac_acc__Specification5_spec__2_#t~ret0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; 968#L480 __utac_acc__Specification5_spec__2_#t~ret0 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret0;havoc __utac_acc__Specification5_spec__2_#t~ret0; 816#L59 assume !(0 != ~pumpRunning~0); 818#L326 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret11, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 959#L410 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret10, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 828#L384-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret9, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; 829#L358-3 assume !(0 == ~pumpRunning~0); 785#L333 havoc __utac_acc__Specification5_spec__3_#t~ret1, __utac_acc__Specification5_spec__3_#t~ret2, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;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; 915#L649 __utac_acc__Specification5_spec__3_#t~ret1 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret1;havoc __utac_acc__Specification5_spec__3_#t~ret1; 819#L70 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 814#L70-1 [2019-11-28 03:42:57,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:42:57,534 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-11-28 03:42:57,534 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:42:57,535 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068611363] [2019-11-28 03:42:57,535 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:42:57,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:42:57,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:42:57,681 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:42:57,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:42:57,682 INFO L82 PathProgramCache]: Analyzing trace with hash 1853866313, now seen corresponding path program 1 times [2019-11-28 03:42:57,683 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:42:57,683 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119710350] [2019-11-28 03:42:57,683 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:42:57,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:42:57,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:42:57,702 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119710350] [2019-11-28 03:42:57,702 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:42:57,702 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 03:42:57,703 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603240687] [2019-11-28 03:42:57,703 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 03:42:57,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:42:57,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 03:42:57,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 03:42:57,704 INFO L87 Difference]: Start difference. First operand 275 states and 401 transitions. cyclomatic complexity: 129 Second operand 3 states. [2019-11-28 03:42:57,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:42:57,850 INFO L93 Difference]: Finished difference Result 277 states and 380 transitions. [2019-11-28 03:42:57,851 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 03:42:57,852 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 277 states and 380 transitions. [2019-11-28 03:42:57,855 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 194 [2019-11-28 03:42:57,858 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 277 states to 277 states and 380 transitions. [2019-11-28 03:42:57,858 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 277 [2019-11-28 03:42:57,858 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 277 [2019-11-28 03:42:57,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 277 states and 380 transitions. [2019-11-28 03:42:57,859 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:42:57,859 INFO L688 BuchiCegarLoop]: Abstraction has 277 states and 380 transitions. [2019-11-28 03:42:57,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states and 380 transitions. [2019-11-28 03:42:57,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 277. [2019-11-28 03:42:57,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2019-11-28 03:42:57,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 380 transitions. [2019-11-28 03:42:57,867 INFO L711 BuchiCegarLoop]: Abstraction has 277 states and 380 transitions. [2019-11-28 03:42:57,867 INFO L591 BuchiCegarLoop]: Abstraction has 277 states and 380 transitions. [2019-11-28 03:42:57,868 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 03:42:57,868 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 277 states and 380 transitions. [2019-11-28 03:42:57,870 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 194 [2019-11-28 03:42:57,870 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:42:57,870 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:42:57,871 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:42:57,871 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] [2019-11-28 03:42:57,872 INFO L794 eck$LassoCheckResult]: Stem: 1515#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(13);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string35.base, #t~string35.offset, 1);call write~init~int(77, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(101, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(116, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(104, #t~string35.base, 4 + #t~string35.offset, 1);call write~init~int(58, #t~string35.base, 5 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 6 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string37.base, #t~string37.offset, 1);call write~init~int(82, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(73, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(84, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 4 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string39.base, #t~string39.offset, 1);call write~init~int(75, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 2 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string41.base, #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 1 + #t~string41.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 1344#L-1 havoc main_#res;havoc main_#t~ret8, main_~retValue_acc~2, main_~tmp~2;havoc main_~retValue_acc~2;havoc main_~tmp~2; 1345#L117 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 1393#L125 main_#t~ret8 := valid_product_#res;main_~tmp~2 := main_#t~ret8;havoc main_#t~ret8; 1394#L295 assume 0 != main_~tmp~2; 1379#L271 ~switchedOnBeforeTS~0 := 0; 1380#L49 havoc test_#t~nondet4, test_#t~nondet5, test_#t~nondet6, test_#t~nondet7, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1516#L70-1 [2019-11-28 03:42:57,872 INFO L796 eck$LassoCheckResult]: Loop: 1516#L70-1 assume !false; 1571#L155 assume test_~splverifierCounter~0 < 4; 1572#L156 test_~tmp~1 := test_#t~nondet4;havoc test_#t~nondet4; 1601#L164 assume !(0 != test_~tmp~1); 1599#L164-1 test_~tmp___0~1 := test_#t~nondet5;havoc test_#t~nondet5; 1490#L174 assume !(0 != test_~tmp___0~1); 1418#L174-1 test_~tmp___2~0 := test_#t~nondet6;havoc test_#t~nondet6; 1488#L184 assume 0 != test_~tmp___2~0; 1498#L190-1 havoc __utac_acc__Specification5_spec__2_#t~ret0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; 1441#L480 __utac_acc__Specification5_spec__2_#t~ret0 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret0;havoc __utac_acc__Specification5_spec__2_#t~ret0; 1388#L59 assume !(0 != ~pumpRunning~0); 1389#L326 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret11, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 1425#L410 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret10, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 1404#L384-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret9, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; 1405#L358-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret30, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~9;havoc isHighWaterSensorDry_~retValue_acc~9; 1493#L657-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~9; 1354#L662-3 isHighWaterLevel_#t~ret30 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret30;havoc isHighWaterLevel_#t~ret30; 1355#L529-9 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~2 := 0; 1447#L529-11 isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; 1406#L535-3 processEnvironment__wrappee__highWaterSensor_#t~ret9 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~3 := processEnvironment__wrappee__highWaterSensor_#t~ret9;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9; 1360#L362-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~3); 1349#L333 havoc __utac_acc__Specification5_spec__3_#t~ret1, __utac_acc__Specification5_spec__3_#t~ret2, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;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; 1577#L649 __utac_acc__Specification5_spec__3_#t~ret1 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret1;havoc __utac_acc__Specification5_spec__3_#t~ret1; 1575#L70 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 1516#L70-1 [2019-11-28 03:42:57,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:42:57,872 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-11-28 03:42:57,873 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:42:57,873 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916361307] [2019-11-28 03:42:57,873 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:42:57,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:42:57,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:42:57,941 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:42:57,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:42:57,941 INFO L82 PathProgramCache]: Analyzing trace with hash 2069526741, now seen corresponding path program 1 times [2019-11-28 03:42:57,942 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:42:57,942 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064810884] [2019-11-28 03:42:57,942 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:42:57,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:42:57,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:42:57,988 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064810884] [2019-11-28 03:42:57,989 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:42:57,989 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 03:42:57,989 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148215379] [2019-11-28 03:42:57,990 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 03:42:57,990 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:42:57,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 03:42:57,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 03:42:57,990 INFO L87 Difference]: Start difference. First operand 277 states and 380 transitions. cyclomatic complexity: 106 Second operand 5 states. [2019-11-28 03:42:58,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:42:58,305 INFO L93 Difference]: Finished difference Result 1231 states and 1699 transitions. [2019-11-28 03:42:58,306 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-28 03:42:58,306 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1231 states and 1699 transitions. [2019-11-28 03:42:58,318 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 851 [2019-11-28 03:42:58,327 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1231 states to 1231 states and 1699 transitions. [2019-11-28 03:42:58,328 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1231 [2019-11-28 03:42:58,329 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1231 [2019-11-28 03:42:58,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1231 states and 1699 transitions. [2019-11-28 03:42:58,331 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:42:58,331 INFO L688 BuchiCegarLoop]: Abstraction has 1231 states and 1699 transitions. [2019-11-28 03:42:58,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1231 states and 1699 transitions. [2019-11-28 03:42:58,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1231 to 544. [2019-11-28 03:42:58,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 544 states. [2019-11-28 03:42:58,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 738 transitions. [2019-11-28 03:42:58,349 INFO L711 BuchiCegarLoop]: Abstraction has 544 states and 738 transitions. [2019-11-28 03:42:58,349 INFO L591 BuchiCegarLoop]: Abstraction has 544 states and 738 transitions. [2019-11-28 03:42:58,349 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-28 03:42:58,350 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 544 states and 738 transitions. [2019-11-28 03:42:58,353 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 386 [2019-11-28 03:42:58,355 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:42:58,355 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:42:58,356 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:42:58,357 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, 1] [2019-11-28 03:42:58,358 INFO L794 eck$LassoCheckResult]: Stem: 3058#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(13);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string35.base, #t~string35.offset, 1);call write~init~int(77, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(101, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(116, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(104, #t~string35.base, 4 + #t~string35.offset, 1);call write~init~int(58, #t~string35.base, 5 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 6 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string37.base, #t~string37.offset, 1);call write~init~int(82, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(73, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(84, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 4 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string39.base, #t~string39.offset, 1);call write~init~int(75, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 2 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string41.base, #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 1 + #t~string41.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 2874#L-1 havoc main_#res;havoc main_#t~ret8, main_~retValue_acc~2, main_~tmp~2;havoc main_~retValue_acc~2;havoc main_~tmp~2; 2875#L117 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 2923#L125 main_#t~ret8 := valid_product_#res;main_~tmp~2 := main_#t~ret8;havoc main_#t~ret8; 2924#L295 assume 0 != main_~tmp~2; 2909#L271 ~switchedOnBeforeTS~0 := 0; 2910#L49 havoc test_#t~nondet4, test_#t~nondet5, test_#t~nondet6, test_#t~nondet7, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 3059#L70-1 [2019-11-28 03:42:58,358 INFO L796 eck$LassoCheckResult]: Loop: 3059#L70-1 assume !false; 3345#L155 assume test_~splverifierCounter~0 < 4; 3344#L156 test_~tmp~1 := test_#t~nondet4;havoc test_#t~nondet4; 3343#L164 assume !(0 != test_~tmp~1); 3341#L164-1 test_~tmp___0~1 := test_#t~nondet5;havoc test_#t~nondet5; 3340#L174 assume !(0 != test_~tmp___0~1); 3338#L174-1 test_~tmp___2~0 := test_#t~nondet6;havoc test_#t~nondet6; 3337#L184 assume 0 != test_~tmp___2~0; 3336#L190-1 havoc __utac_acc__Specification5_spec__2_#t~ret0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; 3352#L480 __utac_acc__Specification5_spec__2_#t~ret0 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret0;havoc __utac_acc__Specification5_spec__2_#t~ret0; 3318#L59 assume !(0 != ~pumpRunning~0); 3281#L326 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret11, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 3280#L410 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret10, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 3272#L384-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret9, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; 3279#L358-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret30, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~9;havoc isHighWaterSensorDry_~retValue_acc~9; 3278#L657-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~9; 3076#L662-3 isHighWaterLevel_#t~ret30 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret30;havoc isHighWaterLevel_#t~ret30; 3277#L529-9 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~2 := 0; 3275#L529-11 isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; 3274#L535-3 processEnvironment__wrappee__highWaterSensor_#t~ret9 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~3 := processEnvironment__wrappee__highWaterSensor_#t~ret9;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9; 3273#L362-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~3); 2931#L333 havoc __utac_acc__Specification5_spec__3_#t~ret1, __utac_acc__Specification5_spec__3_#t~ret2, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;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; 3351#L649 __utac_acc__Specification5_spec__3_#t~ret1 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret1;havoc __utac_acc__Specification5_spec__3_#t~ret1; 3350#L70 assume 2 != __utac_acc__Specification5_spec__3_~tmp~0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; 3349#L480-1 __utac_acc__Specification5_spec__3_#t~ret2 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret2;havoc __utac_acc__Specification5_spec__3_#t~ret2; 3348#L74 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 3059#L70-1 [2019-11-28 03:42:58,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:42:58,359 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2019-11-28 03:42:58,359 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:42:58,359 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188447572] [2019-11-28 03:42:58,359 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:42:58,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:42:58,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:42:58,447 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:42:58,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:42:58,448 INFO L82 PathProgramCache]: Analyzing trace with hash 245333008, now seen corresponding path program 1 times [2019-11-28 03:42:58,448 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:42:58,448 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644723352] [2019-11-28 03:42:58,448 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:42:58,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:42:58,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:42:58,471 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:42:58,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:42:58,472 INFO L82 PathProgramCache]: Analyzing trace with hash -1720878634, now seen corresponding path program 1 times [2019-11-28 03:42:58,473 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:42:58,474 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544691646] [2019-11-28 03:42:58,474 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:42:58,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:42:58,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:42:58,582 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:42:58,732 WARN L192 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2019-11-28 03:43:26,043 WARN L192 SmtUtils]: Spent 27.23 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-11-28 03:43:39,519 WARN L192 SmtUtils]: Spent 13.47 s on a formula simplification that was a NOOP. DAG size: 402 [2019-11-28 03:43:39,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:43:39 BoogieIcfgContainer [2019-11-28 03:43:39,601 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 03:43:39,601 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 03:43:39,601 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 03:43:39,602 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 03:43:39,603 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:42:56" (3/4) ... [2019-11-28 03:43:39,606 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 03:43:39,723 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 03:43:39,723 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 03:43:39,725 INFO L168 Benchmark]: Toolchain (without parser) took 45536.82 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 319.3 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -164.0 MB). Peak memory consumption was 155.3 MB. Max. memory is 11.5 GB. [2019-11-28 03:43:39,726 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:43:39,726 INFO L168 Benchmark]: CACSL2BoogieTranslator took 661.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -158.5 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. [2019-11-28 03:43:39,728 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-28 03:43:39,728 INFO L168 Benchmark]: Boogie Preprocessor took 79.09 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:43:39,729 INFO L168 Benchmark]: RCFGBuilder took 1052.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 90.9 MB). Peak memory consumption was 90.9 MB. Max. memory is 11.5 GB. [2019-11-28 03:43:39,736 INFO L168 Benchmark]: BuchiAutomizer took 43522.96 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 183.5 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -103.2 MB). Peak memory consumption was 366.9 MB. Max. memory is 11.5 GB. [2019-11-28 03:43:39,736 INFO L168 Benchmark]: Witness Printer took 122.29 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:43:39,738 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 661.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -158.5 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 93.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 79.09 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1052.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 90.9 MB). Peak memory consumption was 90.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 43522.96 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 183.5 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -103.2 MB). Peak memory consumption was 366.9 MB. Max. memory is 11.5 GB. * Witness Printer took 122.29 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. 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 544 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 43.4s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 42.3s. Construction of modules took 0.4s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 908 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 544 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1014 SDtfs, 2889 SDslu, 2573 SDs, 0 SdLazy, 277 SolverSat, 78 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s 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: 154]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=3001} State at position 1 is {NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f347ac1=0, NULL=3001, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1368e767=66, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@464737ba=0, NULL=3005, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6ff619dc=0, NULL=0, NULL=0, NULL=3006, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5ba67574=0, retValue_acc=0, NULL=3015, tmp___1=0, NULL=3009, NULL=3003, NULL=3026, cleanupTimeShifts=4, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7132137=0, NULL=3010, NULL=0, NULL=0, waterLevel=1, NULL=3025, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5c1eb798=0, \result=1, retValue_acc=1, head=0, pumpRunning=0, NULL=3022, tmp=1, NULL=0, NULL=0, NULL=0, \result=1, NULL=3024, NULL=0, NULL=0, retValue_acc=1, NULL=0, NULL=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43aa3f63=0, tmp___0=0, NULL=3013, head=0, tmp=0, NULL=3004, NULL=0, NULL=0, NULL=3011, tmp=0, NULL=3016, NULL=0, retValue_acc=0, NULL=0, NULL=3017, NULL=3012, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b523d2b=0, NULL=3021, tmp___0=0, NULL=0, NULL=0, NULL=3023, tmp=1, tmp=0, switchedOnBeforeTS=0, NULL=3014, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, NULL=3007, \result=1, \result=0, tmp___0=0, \result=0, NULL=3002, NULL=0, NULL=0, NULL=3019, NULL=0, retValue_acc=1, tmp___2=66, splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c5f90c4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@49a13da8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2c836c42=0, NULL=3020, NULL=3018, NULL=3008, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L43] int switchedOnBeforeTS ; [L211] int cleanupTimeShifts = 4; [L316] int pumpRunning = 0; [L317] int systemActive = 1; [L574] int waterLevel = 1; [L575] int methaneLevelCritical = 0; [L846] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L286] int retValue_acc ; [L287] int tmp ; [L121] int retValue_acc ; [L124] retValue_acc = 1 [L125] return (retValue_acc); [L293] tmp = valid_product() [L295] COND TRUE \read(tmp) [L48] switchedOnBeforeTS = 0 [L145] int splverifierCounter ; [L146] int tmp ; [L147] int tmp___0 ; [L148] int tmp___1 ; [L149] int tmp___2 ; [L152] splverifierCounter = 0 Loop: [L154] COND TRUE 1 [L156] COND TRUE splverifierCounter < 4 [L162] tmp = __VERIFIER_nondet_int() [L164] COND FALSE !(\read(tmp)) [L172] tmp___0 = __VERIFIER_nondet_int() [L174] COND FALSE !(\read(tmp___0)) [L182] tmp___2 = __VERIFIER_nondet_int() [L184] COND TRUE \read(tmp___2) [L476] int retValue_acc ; [L479] retValue_acc = pumpRunning [L480] return (retValue_acc); [L57] switchedOnBeforeTS = isPumpRunning() [L326] COND FALSE !(\read(pumpRunning)) [L333] COND TRUE \read(systemActive) [L407] int tmp ; [L410] COND FALSE !(\read(pumpRunning)) [L381] int tmp ; [L384] COND FALSE !(\read(pumpRunning)) [L355] int tmp ; [L358] COND TRUE ! pumpRunning [L521] int retValue_acc ; [L522] int tmp ; [L523] int tmp___0 ; [L654] int retValue_acc ; [L657] COND TRUE waterLevel < 2 [L658] retValue_acc = 1 [L659] return (retValue_acc); [L527] tmp = isHighWaterSensorDry() [L529] COND TRUE \read(tmp) [L530] tmp___0 = 0 [L534] retValue_acc = tmp___0 [L535] return (retValue_acc); [L360] tmp = isHighWaterLevel() [L362] COND FALSE !(\read(tmp)) [L63] int tmp ; [L64] int tmp___0 ; [L645] int retValue_acc ; [L648] retValue_acc = waterLevel [L649] return (retValue_acc); [L68] tmp = getWaterLevel() [L70] COND TRUE tmp != 2 [L476] int retValue_acc ; [L479] retValue_acc = pumpRunning [L480] return (retValue_acc); [L72] tmp___0 = isPumpRunning() [L74] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...