./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5fbdf5bf Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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_spec3_product64.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 0c75cc0efa833cee2ae88b3635c1f8807d970760 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config using search string *Termination*32bit*_Bitvector*.epf No suitable settings file found using Termination*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6) --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-31 04:01:06,722 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-31 04:01:06,724 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-31 04:01:06,747 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-31 04:01:06,747 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-31 04:01:06,748 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-31 04:01:06,749 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-31 04:01:06,751 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-31 04:01:06,753 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-31 04:01:06,754 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-31 04:01:06,755 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-31 04:01:06,756 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-31 04:01:06,756 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-31 04:01:06,757 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-31 04:01:06,758 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-31 04:01:06,759 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-31 04:01:06,760 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-31 04:01:06,761 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-31 04:01:06,762 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-31 04:01:06,764 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-31 04:01:06,765 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-31 04:01:06,766 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-31 04:01:06,767 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-31 04:01:06,768 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-31 04:01:06,770 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-31 04:01:06,771 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-31 04:01:06,771 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-31 04:01:06,772 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-31 04:01:06,772 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-31 04:01:06,773 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-31 04:01:06,774 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-31 04:01:06,774 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-31 04:01:06,775 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-31 04:01:06,776 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-31 04:01:06,777 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-31 04:01:06,777 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-31 04:01:06,778 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-31 04:01:06,778 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-31 04:01:06,778 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-31 04:01:06,779 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-31 04:01:06,780 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-31 04:01:06,781 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-31 04:01:06,801 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-31 04:01:06,801 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-31 04:01:06,802 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-31 04:01:06,802 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-31 04:01:06,803 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-31 04:01:06,803 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-31 04:01:06,803 INFO L138 SettingsManager]: * Use SBE=true [2021-08-31 04:01:06,804 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-31 04:01:06,804 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-31 04:01:06,804 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-31 04:01:06,804 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-31 04:01:06,804 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-31 04:01:06,805 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-31 04:01:06,805 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-31 04:01:06,805 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-31 04:01:06,805 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-31 04:01:06,805 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-31 04:01:06,806 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-31 04:01:06,806 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-31 04:01:06,806 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-31 04:01:06,814 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-31 04:01:06,815 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-31 04:01:06,815 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-31 04:01:06,815 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-31 04:01:06,815 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-31 04:01:06,815 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-31 04:01:06,816 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-31 04:01:06,816 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-31 04:01:06,816 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-31 04:01:06,816 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-31 04:01:06,817 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-31 04:01:06,817 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-31 04:01:06,818 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-31 04:01:06,818 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c75cc0efa833cee2ae88b3635c1f8807d970760 [2021-08-31 04:01:07,176 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-31 04:01:07,204 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-31 04:01:07,206 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-31 04:01:07,207 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-31 04:01:07,213 INFO L275 PluginConnector]: CDTParser initialized [2021-08-31 04:01:07,214 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c [2021-08-31 04:01:07,273 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3429300f/82e6b00f978945f0a83d37fabb3079b2/FLAG8004687e9 [2021-08-31 04:01:07,756 INFO L306 CDTParser]: Found 1 translation units. [2021-08-31 04:01:07,756 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c [2021-08-31 04:01:07,776 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3429300f/82e6b00f978945f0a83d37fabb3079b2/FLAG8004687e9 [2021-08-31 04:01:08,284 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3429300f/82e6b00f978945f0a83d37fabb3079b2 [2021-08-31 04:01:08,287 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-31 04:01:08,289 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-31 04:01:08,295 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-31 04:01:08,296 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-31 04:01:08,299 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-31 04:01:08,300 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 04:01:08" (1/1) ... [2021-08-31 04:01:08,301 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50f3051b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:01:08, skipping insertion in model container [2021-08-31 04:01:08,301 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 04:01:08" (1/1) ... [2021-08-31 04:01:08,307 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-31 04:01:08,357 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-31 04:01:08,741 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c[18698,18711] [2021-08-31 04:01:08,748 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 04:01:08,761 INFO L203 MainTranslator]: Completed pre-run [2021-08-31 04:01:08,855 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c[18698,18711] [2021-08-31 04:01:08,864 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 04:01:08,883 INFO L208 MainTranslator]: Completed translation [2021-08-31 04:01:08,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:01:08 WrapperNode [2021-08-31 04:01:08,884 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-31 04:01:08,885 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-31 04:01:08,885 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-31 04:01:08,886 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-31 04:01:08,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:01:08" (1/1) ... [2021-08-31 04:01:08,914 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:01:08" (1/1) ... [2021-08-31 04:01:08,989 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-31 04:01:08,993 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-31 04:01:08,993 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-31 04:01:08,993 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-31 04:01:09,000 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:01:08" (1/1) ... [2021-08-31 04:01:09,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:01:08" (1/1) ... [2021-08-31 04:01:09,012 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:01:08" (1/1) ... [2021-08-31 04:01:09,022 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:01:08" (1/1) ... [2021-08-31 04:01:09,039 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:01:08" (1/1) ... [2021-08-31 04:01:09,058 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:01:08" (1/1) ... [2021-08-31 04:01:09,079 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:01:08" (1/1) ... [2021-08-31 04:01:09,085 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-31 04:01:09,086 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-31 04:01:09,086 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-31 04:01:09,086 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-31 04:01:09,087 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:01:08" (1/1) ... [2021-08-31 04:01:09,100 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 04:01:09,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 04:01:09,134 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 04:01:09,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-08-31 04:01:09,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-31 04:01:09,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-31 04:01:09,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-31 04:01:09,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-31 04:01:09,744 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-31 04:01:09,744 INFO L299 CfgBuilder]: Removed 360 assume(true) statements. [2021-08-31 04:01:09,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 04:01:09 BoogieIcfgContainer [2021-08-31 04:01:09,747 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-31 04:01:09,749 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-31 04:01:09,750 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-31 04:01:09,753 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-31 04:01:09,754 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 04:01:09,754 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.08 04:01:08" (1/3) ... [2021-08-31 04:01:09,755 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@684e57fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 04:01:09, skipping insertion in model container [2021-08-31 04:01:09,755 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 04:01:09,755 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:01:08" (2/3) ... [2021-08-31 04:01:09,756 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@684e57fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 04:01:09, skipping insertion in model container [2021-08-31 04:01:09,756 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 04:01:09,757 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 04:01:09" (3/3) ... [2021-08-31 04:01:09,758 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product64.cil.c [2021-08-31 04:01:09,800 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-31 04:01:09,800 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-31 04:01:09,800 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-31 04:01:09,801 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-31 04:01:09,801 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-31 04:01:09,801 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-31 04:01:09,801 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-31 04:01:09,801 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-31 04:01:09,825 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 230 states, 229 states have (on average 1.5065502183406114) internal successors, (345), 229 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 04:01:09,858 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 151 [2021-08-31 04:01:09,858 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 04:01:09,858 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 04:01:09,864 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-31 04:01:09,864 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-31 04:01:09,864 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-31 04:01:09,865 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 230 states, 229 states have (on average 1.5065502183406114) internal successors, (345), 229 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 04:01:09,872 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 151 [2021-08-31 04:01:09,872 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 04:01:09,872 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 04:01:09,873 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-31 04:01:09,873 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-31 04:01:09,879 INFO L791 eck$LassoCheckResult]: Stem: 218#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(13);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string38.base, #t~string38.offset, 1);call write~init~int(77, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(101, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(116, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(104, #t~string38.base, 4 + #t~string38.offset, 1);call write~init~int(58, #t~string38.base, 5 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 6 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string40.base, #t~string40.offset, 1);call write~init~int(82, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(73, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(84, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 4 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(75, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.offset, 1);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~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);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);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 152#L-1true havoc main_#res;havoc main_#t~ret80, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 217#L67true 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; 167#L75true main_#t~ret80 := valid_product_#res;main_~tmp~10 := main_#t~ret80;havoc main_#t~ret80; 197#L980true assume 0 != main_~tmp~10; 52#L957true havoc test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 229#L1018-1true [2021-08-31 04:01:09,879 INFO L793 eck$LassoCheckResult]: Loop: 229#L1018-1true assume !false; 5#L370true assume test_~splverifierCounter~0 < 4; 171#L371true test_~tmp~6 := test_#t~nondet31;havoc test_#t~nondet31; 87#L379true assume !(0 != test_~tmp~6); 32#L379-1true test_~tmp___0~2 := test_#t~nondet32;havoc test_#t~nondet32; 16#L389true assume !(0 != test_~tmp___0~2); 172#L389-1true test_~tmp___2~0 := test_#t~nondet33;havoc test_#t~nondet33; 55#L399true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 76#L407-1true assume !(0 != ~pumpRunning~0); 163#L100true assume !(0 != ~systemActive~0); 110#L107true havoc __utac_acc__Specification3_spec__1_#t~ret81, __utac_acc__Specification3_spec__1_#t~ret82, __utac_acc__Specification3_spec__1_#t~ret83, __utac_acc__Specification3_spec__1_~tmp~11, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~11;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 108#L472-5true __utac_acc__Specification3_spec__1_#t~ret81 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~11 := __utac_acc__Specification3_spec__1_#t~ret81;havoc __utac_acc__Specification3_spec__1_#t~ret81; 227#L1012true assume 0 != __utac_acc__Specification3_spec__1_~tmp~11; 229#L1018-1true [2021-08-31 04:01:09,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:01:09,883 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-08-31 04:01:09,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:01:09,890 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588394407] [2021-08-31 04:01:09,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:01:09,891 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:01:10,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:01:10,069 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 04:01:10,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:01:10,186 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 04:01:10,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:01:10,192 INFO L82 PathProgramCache]: Analyzing trace with hash -1665583745, now seen corresponding path program 1 times [2021-08-31 04:01:10,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:01:10,194 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599557054] [2021-08-31 04:01:10,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:01:10,194 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:01:10,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 04:01:10,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 04:01:10,274 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 04:01:10,275 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599557054] [2021-08-31 04:01:10,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599557054] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-31 04:01:10,275 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-31 04:01:10,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-31 04:01:10,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48818286] [2021-08-31 04:01:10,279 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-31 04:01:10,280 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 04:01:10,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-31 04:01:10,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-31 04:01:10,305 INFO L87 Difference]: Start difference. First operand has 230 states, 229 states have (on average 1.5065502183406114) internal successors, (345), 229 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 04:01:11,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 04:01:11,242 INFO L93 Difference]: Finished difference Result 454 states and 666 transitions. [2021-08-31 04:01:11,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-31 04:01:11,247 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 454 states and 666 transitions. [2021-08-31 04:01:11,256 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 298 [2021-08-31 04:01:11,263 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 454 states to 440 states and 651 transitions. [2021-08-31 04:01:11,264 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 440 [2021-08-31 04:01:11,266 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 440 [2021-08-31 04:01:11,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 440 states and 651 transitions. [2021-08-31 04:01:11,269 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 04:01:11,269 INFO L681 BuchiCegarLoop]: Abstraction has 440 states and 651 transitions. [2021-08-31 04:01:11,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states and 651 transitions. [2021-08-31 04:01:11,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 438. [2021-08-31 04:01:11,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 438 states have (on average 1.4794520547945205) internal successors, (648), 437 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 04:01:11,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 648 transitions. [2021-08-31 04:01:11,316 INFO L704 BuchiCegarLoop]: Abstraction has 438 states and 648 transitions. [2021-08-31 04:01:11,317 INFO L587 BuchiCegarLoop]: Abstraction has 438 states and 648 transitions. [2021-08-31 04:01:11,317 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-31 04:01:11,317 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 438 states and 648 transitions. [2021-08-31 04:01:11,320 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 296 [2021-08-31 04:01:11,320 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 04:01:11,320 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 04:01:11,321 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-31 04:01:11,321 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-31 04:01:11,321 INFO L791 eck$LassoCheckResult]: Stem: 940#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(13);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string38.base, #t~string38.offset, 1);call write~init~int(77, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(101, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(116, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(104, #t~string38.base, 4 + #t~string38.offset, 1);call write~init~int(58, #t~string38.base, 5 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 6 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string40.base, #t~string40.offset, 1);call write~init~int(82, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(73, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(84, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 4 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(75, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.offset, 1);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~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);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);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 899#L-1 havoc main_#res;havoc main_#t~ret80, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 900#L67 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; 908#L75 main_#t~ret80 := valid_product_#res;main_~tmp~10 := main_#t~ret80;havoc main_#t~ret80; 909#L980 assume 0 != main_~tmp~10; 778#L957 havoc test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 779#L1018-1 [2021-08-31 04:01:11,322 INFO L793 eck$LassoCheckResult]: Loop: 779#L1018-1 assume !false; 697#L370 assume test_~splverifierCounter~0 < 4; 698#L371 test_~tmp~6 := test_#t~nondet31;havoc test_#t~nondet31; 833#L379 assume !(0 != test_~tmp~6); 748#L379-1 test_~tmp___0~2 := test_#t~nondet32;havoc test_#t~nondet32; 721#L389 assume !(0 != test_~tmp___0~2); 703#L389-1 test_~tmp___2~0 := test_#t~nondet33;havoc test_#t~nondet33; 784#L399 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 714#L407-1 assume !(0 != ~pumpRunning~0); 818#L100 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret10, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 796#L184 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret9, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 798#L158-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret8, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 910#L132-3 assume !(0 == ~pumpRunning~0); 723#L107 havoc __utac_acc__Specification3_spec__1_#t~ret81, __utac_acc__Specification3_spec__1_#t~ret82, __utac_acc__Specification3_spec__1_#t~ret83, __utac_acc__Specification3_spec__1_~tmp~11, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~11;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 858#L472-5 __utac_acc__Specification3_spec__1_#t~ret81 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~11 := __utac_acc__Specification3_spec__1_#t~ret81;havoc __utac_acc__Specification3_spec__1_#t~ret81; 859#L1012 assume 0 != __utac_acc__Specification3_spec__1_~tmp~11; 779#L1018-1 [2021-08-31 04:01:11,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:01:11,322 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-08-31 04:01:11,323 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:01:11,323 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498210836] [2021-08-31 04:01:11,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:01:11,323 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:01:11,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:01:11,368 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 04:01:11,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:01:11,454 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 04:01:11,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:01:11,455 INFO L82 PathProgramCache]: Analyzing trace with hash 1220566452, now seen corresponding path program 1 times [2021-08-31 04:01:11,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:01:11,455 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646022187] [2021-08-31 04:01:11,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:01:11,455 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:01:11,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 04:01:11,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 04:01:11,490 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 04:01:11,490 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646022187] [2021-08-31 04:01:11,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646022187] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-31 04:01:11,490 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-31 04:01:11,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-31 04:01:11,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354112863] [2021-08-31 04:01:11,491 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-31 04:01:11,491 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 04:01:11,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-31 04:01:11,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-31 04:01:11,492 INFO L87 Difference]: Start difference. First operand 438 states and 648 transitions. cyclomatic complexity: 213 Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 04:01:11,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 04:01:11,919 INFO L93 Difference]: Finished difference Result 443 states and 622 transitions. [2021-08-31 04:01:11,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-31 04:01:11,920 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 443 states and 622 transitions. [2021-08-31 04:01:11,924 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 307 [2021-08-31 04:01:11,926 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 443 states to 443 states and 622 transitions. [2021-08-31 04:01:11,926 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 443 [2021-08-31 04:01:11,927 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 443 [2021-08-31 04:01:11,927 INFO L73 IsDeterministic]: Start isDeterministic. Operand 443 states and 622 transitions. [2021-08-31 04:01:11,929 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 04:01:11,929 INFO L681 BuchiCegarLoop]: Abstraction has 443 states and 622 transitions. [2021-08-31 04:01:11,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states and 622 transitions. [2021-08-31 04:01:11,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2021-08-31 04:01:11,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 443 states have (on average 1.4040632054176072) internal successors, (622), 442 states have internal predecessors, (622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 04:01:11,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 622 transitions. [2021-08-31 04:01:11,945 INFO L704 BuchiCegarLoop]: Abstraction has 443 states and 622 transitions. [2021-08-31 04:01:11,946 INFO L587 BuchiCegarLoop]: Abstraction has 443 states and 622 transitions. [2021-08-31 04:01:11,946 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-08-31 04:01:11,946 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 443 states and 622 transitions. [2021-08-31 04:01:11,948 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 307 [2021-08-31 04:01:11,948 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 04:01:11,948 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 04:01:11,949 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-31 04:01:11,949 INFO L843 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] [2021-08-31 04:01:11,949 INFO L791 eck$LassoCheckResult]: Stem: 1782#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(13);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string38.base, #t~string38.offset, 1);call write~init~int(77, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(101, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(116, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(104, #t~string38.base, 4 + #t~string38.offset, 1);call write~init~int(58, #t~string38.base, 5 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 6 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string40.base, #t~string40.offset, 1);call write~init~int(82, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(73, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(84, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 4 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(75, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.offset, 1);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~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);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);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 1675#L-1 havoc main_#res;havoc main_#t~ret80, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 1676#L67 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; 1709#L75 main_#t~ret80 := valid_product_#res;main_~tmp~10 := main_#t~ret80;havoc main_#t~ret80; 1710#L980 assume 0 != main_~tmp~10; 1718#L957 havoc test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1719#L1018-1 [2021-08-31 04:01:11,950 INFO L793 eck$LassoCheckResult]: Loop: 1719#L1018-1 assume !false; 1590#L370 assume test_~splverifierCounter~0 < 4; 1591#L371 test_~tmp~6 := test_#t~nondet31;havoc test_#t~nondet31; 1720#L379 assume !(0 != test_~tmp~6); 1652#L379-1 test_~tmp___0~2 := test_#t~nondet32;havoc test_#t~nondet32; 1632#L389 assume !(0 != test_~tmp___0~2); 1595#L389-1 test_~tmp___2~0 := test_#t~nondet33;havoc test_#t~nondet33; 1721#L399 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1616#L407-1 assume !(0 != ~pumpRunning~0); 1762#L100 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret10, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 1744#L184 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret9, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 1745#L158-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret8, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 1713#L132-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret29, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 1714#L512-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 1748#L517-3 isHighWaterLevel_#t~ret29 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret29;havoc isHighWaterLevel_#t~ret29; 1778#L303-9 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~0 := 0; 1751#L303-11 isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; 1741#L309-3 processEnvironment__wrappee__highWaterSensor_#t~ret8 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret8;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8; 1640#L136-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 1639#L107 havoc __utac_acc__Specification3_spec__1_#t~ret81, __utac_acc__Specification3_spec__1_#t~ret82, __utac_acc__Specification3_spec__1_#t~ret83, __utac_acc__Specification3_spec__1_~tmp~11, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~11;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 1784#L472-5 __utac_acc__Specification3_spec__1_#t~ret81 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~11 := __utac_acc__Specification3_spec__1_#t~ret81;havoc __utac_acc__Specification3_spec__1_#t~ret81; 1785#L1012 assume 0 != __utac_acc__Specification3_spec__1_~tmp~11; 1719#L1018-1 [2021-08-31 04:01:11,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:01:11,950 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-08-31 04:01:11,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:01:11,951 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931056793] [2021-08-31 04:01:11,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:01:11,951 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:01:11,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:01:11,979 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 04:01:12,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:01:12,014 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 04:01:12,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:01:12,015 INFO L82 PathProgramCache]: Analyzing trace with hash -231328544, now seen corresponding path program 1 times [2021-08-31 04:01:12,015 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:01:12,015 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867498504] [2021-08-31 04:01:12,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:01:12,016 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:01:12,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:01:12,021 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 04:01:12,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:01:12,026 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 04:01:12,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:01:12,027 INFO L82 PathProgramCache]: Analyzing trace with hash 1021976582, now seen corresponding path program 1 times [2021-08-31 04:01:12,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:01:12,027 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024527920] [2021-08-31 04:01:12,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:01:12,028 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:01:12,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 04:01:12,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 04:01:12,096 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 04:01:12,096 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024527920] [2021-08-31 04:01:12,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024527920] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-31 04:01:12,097 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-31 04:01:12,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-31 04:01:12,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232684442] [2021-08-31 04:01:12,338 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 04:01:12,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-31 04:01:12,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-31 04:01:12,339 INFO L87 Difference]: Start difference. First operand 443 states and 622 transitions. cyclomatic complexity: 182 Second operand has 5 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 04:01:13,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 04:01:13,540 INFO L93 Difference]: Finished difference Result 1483 states and 2085 transitions. [2021-08-31 04:01:13,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-31 04:01:13,541 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1483 states and 2085 transitions. [2021-08-31 04:01:13,554 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 1085 [2021-08-31 04:01:13,562 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1483 states to 1483 states and 2085 transitions. [2021-08-31 04:01:13,562 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1483 [2021-08-31 04:01:13,564 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1483 [2021-08-31 04:01:13,564 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1483 states and 2085 transitions. [2021-08-31 04:01:13,567 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 04:01:13,567 INFO L681 BuchiCegarLoop]: Abstraction has 1483 states and 2085 transitions. [2021-08-31 04:01:13,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1483 states and 2085 transitions. [2021-08-31 04:01:13,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1483 to 880. [2021-08-31 04:01:13,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 880 states, 880 states have (on average 1.3886363636363637) internal successors, (1222), 879 states have internal predecessors, (1222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 04:01:13,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1222 transitions. [2021-08-31 04:01:13,603 INFO L704 BuchiCegarLoop]: Abstraction has 880 states and 1222 transitions. [2021-08-31 04:01:13,603 INFO L587 BuchiCegarLoop]: Abstraction has 880 states and 1222 transitions. [2021-08-31 04:01:13,603 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-08-31 04:01:13,603 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 880 states and 1222 transitions. [2021-08-31 04:01:13,608 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 614 [2021-08-31 04:01:13,608 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 04:01:13,608 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 04:01:13,609 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-31 04:01:13,610 INFO L843 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] [2021-08-31 04:01:13,610 INFO L791 eck$LassoCheckResult]: Stem: 3743#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(13);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string38.base, #t~string38.offset, 1);call write~init~int(77, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(101, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(116, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(104, #t~string38.base, 4 + #t~string38.offset, 1);call write~init~int(58, #t~string38.base, 5 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 6 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string40.base, #t~string40.offset, 1);call write~init~int(82, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(73, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(84, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 4 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(75, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.offset, 1);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~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);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);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 3620#L-1 havoc main_#res;havoc main_#t~ret80, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 3621#L67 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; 3655#L75 main_#t~ret80 := valid_product_#res;main_~tmp~10 := main_#t~ret80;havoc main_#t~ret80; 3656#L980 assume 0 != main_~tmp~10; 3665#L957 havoc test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 3666#L1018-1 [2021-08-31 04:01:13,610 INFO L793 eck$LassoCheckResult]: Loop: 3666#L1018-1 assume !false; 3983#L370 assume test_~splverifierCounter~0 < 4; 3979#L371 test_~tmp~6 := test_#t~nondet31;havoc test_#t~nondet31; 3970#L379 assume !(0 != test_~tmp~6); 3967#L379-1 test_~tmp___0~2 := test_#t~nondet32;havoc test_#t~nondet32; 3966#L389 assume !(0 != test_~tmp___0~2); 3964#L389-1 test_~tmp___2~0 := test_#t~nondet33;havoc test_#t~nondet33; 3963#L399 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 3672#L407-1 assume !(0 != ~pumpRunning~0); 3922#L100 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret10, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 3955#L184 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret9, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 3915#L158-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret8, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 3952#L132-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret29, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 3948#L512-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 3946#L517-3 isHighWaterLevel_#t~ret29 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret29;havoc isHighWaterLevel_#t~ret29; 3945#L303-9 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~0 := 0; 3943#L303-11 isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; 3942#L309-3 processEnvironment__wrappee__highWaterSensor_#t~ret8 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret8;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8; 3938#L136-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 3889#L107 havoc __utac_acc__Specification3_spec__1_#t~ret81, __utac_acc__Specification3_spec__1_#t~ret82, __utac_acc__Specification3_spec__1_#t~ret83, __utac_acc__Specification3_spec__1_~tmp~11, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~11;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 3996#L472-5 __utac_acc__Specification3_spec__1_#t~ret81 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~11 := __utac_acc__Specification3_spec__1_#t~ret81;havoc __utac_acc__Specification3_spec__1_#t~ret81; 3995#L1012 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~11);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 3994#L504 __utac_acc__Specification3_spec__1_#t~ret82 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~3 := __utac_acc__Specification3_spec__1_#t~ret82;havoc __utac_acc__Specification3_spec__1_#t~ret82; 3992#L1018 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~3); 3666#L1018-1 [2021-08-31 04:01:13,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:01:13,611 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 4 times [2021-08-31 04:01:13,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:01:13,612 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144577670] [2021-08-31 04:01:13,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:01:13,612 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:01:13,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:01:13,674 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 04:01:13,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:01:13,730 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 04:01:13,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:01:13,731 INFO L82 PathProgramCache]: Analyzing trace with hash 1031581650, now seen corresponding path program 1 times [2021-08-31 04:01:13,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:01:13,732 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765147249] [2021-08-31 04:01:13,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:01:13,732 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:01:13,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:01:13,737 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 04:01:13,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:01:13,742 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 04:01:13,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:01:13,743 INFO L82 PathProgramCache]: Analyzing trace with hash -1428002440, now seen corresponding path program 1 times [2021-08-31 04:01:13,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:01:13,744 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027867244] [2021-08-31 04:01:13,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:01:13,744 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:01:13,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:01:13,768 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 04:01:13,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:01:13,816 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 04:01:54,275 WARN L210 SmtUtils]: Spent 40.22s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-08-31 04:02:36,701 WARN L210 SmtUtils]: Spent 19.81s on a formula simplification that was a NOOP. DAG size: 433 [2021-08-31 04:02:36,760 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoopBenchmark.prettyprintBenchmarkData(BuchiCegarLoopBenchmark.java:178) at de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData.toString(StatisticsData.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerTimingBenchmark.toString(BuchiAutomizerTimingBenchmark.java:44) at de.uni_freiburg.informatik.ultimate.core.lib.results.StatisticsResult.getLongDescription(StatisticsResult.java:58) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.reportResult(BuchiAutomizerObserver.java:375) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:161) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:398) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-08-31 04:02:36,762 INFO L158 Benchmark]: Toolchain (without parser) took 88472.62ms. Allocated memory was 54.5MB in the beginning and 100.7MB in the end (delta: 46.1MB). Free memory was 32.3MB in the beginning and 26.5MB in the end (delta: 5.8MB). Peak memory consumption was 63.0MB. Max. memory is 16.1GB. [2021-08-31 04:02:36,763 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 54.5MB. Free memory was 36.6MB in the beginning and 36.5MB in the end (delta: 52.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-31 04:02:36,764 INFO L158 Benchmark]: CACSL2BoogieTranslator took 588.66ms. Allocated memory was 54.5MB in the beginning and 69.2MB in the end (delta: 14.7MB). Free memory was 32.1MB in the beginning and 45.7MB in the end (delta: -13.6MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2021-08-31 04:02:36,764 INFO L158 Benchmark]: Boogie Procedure Inliner took 107.24ms. Allocated memory is still 69.2MB. Free memory was 45.7MB in the beginning and 40.1MB in the end (delta: 5.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-08-31 04:02:36,765 INFO L158 Benchmark]: Boogie Preprocessor took 92.53ms. Allocated memory is still 69.2MB. Free memory was 40.1MB in the beginning and 36.1MB in the end (delta: 4.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-08-31 04:02:36,765 INFO L158 Benchmark]: RCFGBuilder took 661.24ms. Allocated memory is still 69.2MB. Free memory was 36.1MB in the beginning and 44.8MB in the end (delta: -8.7MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. [2021-08-31 04:02:36,766 INFO L158 Benchmark]: BuchiAutomizer took 87011.99ms. Allocated memory was 69.2MB in the beginning and 100.7MB in the end (delta: 31.5MB). Free memory was 44.5MB in the beginning and 26.5MB in the end (delta: 18.0MB). Peak memory consumption was 60.1MB. Max. memory is 16.1GB. [2021-08-31 04:02:36,773 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 54.5MB. Free memory was 36.6MB in the beginning and 36.5MB in the end (delta: 52.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 588.66ms. Allocated memory was 54.5MB in the beginning and 69.2MB in the end (delta: 14.7MB). Free memory was 32.1MB in the beginning and 45.7MB in the end (delta: -13.6MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 107.24ms. Allocated memory is still 69.2MB. Free memory was 45.7MB in the beginning and 40.1MB in the end (delta: 5.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 92.53ms. Allocated memory is still 69.2MB. Free memory was 40.1MB in the beginning and 36.1MB in the end (delta: 4.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 661.24ms. Allocated memory is still 69.2MB. Free memory was 36.1MB in the beginning and 44.8MB in the end (delta: -8.7MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 87011.99ms. Allocated memory was 69.2MB in the beginning and 100.7MB in the end (delta: 31.5MB). Free memory was 44.5MB in the beginning and 26.5MB in the end (delta: 18.0MB). Peak memory consumption was 60.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 880 locations. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6) de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6): de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoopBenchmark.prettyprintBenchmarkData(BuchiCegarLoopBenchmark.java:178) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-08-31 04:02:36,814 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...