./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product35.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -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_spec5_product35.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 45ba8c3ee5105630bc9146965d68439e6204903aca4c5a31cd4f017e456c8589 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:18:40,571 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:18:40,574 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:18:40,608 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:18:40,608 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:18:40,624 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:18:40,625 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:18:40,626 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:18:40,627 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:18:40,627 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:18:40,628 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:18:40,628 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:18:40,629 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:18:40,629 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:18:40,630 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:18:40,631 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:18:40,631 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:18:40,634 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:18:40,635 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:18:40,638 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:18:40,641 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:18:40,644 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:18:40,645 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:18:40,645 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:18:40,647 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:18:40,648 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:18:40,649 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:18:40,649 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:18:40,651 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:18:40,652 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:18:40,652 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:18:40,653 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:18:40,654 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:18:40,655 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:18:40,656 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:18:40,656 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:18:40,657 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:18:40,657 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:18:40,657 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:18:40,658 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:18:40,658 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:18:40,659 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:18:40,677 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:18:40,679 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:18:40,680 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:18:40,680 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:18:40,681 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:18:40,681 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:18:40,681 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:18:40,681 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:18:40,682 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:18:40,682 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:18:40,682 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:18:40,683 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:18:40,683 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:18:40,683 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:18:40,683 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:18:40,683 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:18:40,683 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:18:40,684 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:18:40,684 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:18:40,684 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:18:40,684 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:18:40,684 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:18:40,684 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:18:40,684 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:18:40,685 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:18:40,685 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:18:40,685 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:18:40,685 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:18:40,685 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:18:40,685 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:18:40,686 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:18:40,686 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:18:40,687 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45ba8c3ee5105630bc9146965d68439e6204903aca4c5a31cd4f017e456c8589 [2022-02-21 04:18:40,872 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:18:40,903 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:18:40,905 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:18:40,906 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:18:40,906 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:18:40,908 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product35.cil.c [2022-02-21 04:18:40,970 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b32ddee70/8957097460dd4e32a0c63572a150a19f/FLAGf00a92f04 [2022-02-21 04:18:41,301 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:18:41,308 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product35.cil.c [2022-02-21 04:18:41,318 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b32ddee70/8957097460dd4e32a0c63572a150a19f/FLAGf00a92f04 [2022-02-21 04:18:41,726 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b32ddee70/8957097460dd4e32a0c63572a150a19f [2022-02-21 04:18:41,728 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:18:41,729 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:18:41,731 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:41,732 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:18:41,734 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:18:41,734 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:41" (1/1) ... [2022-02-21 04:18:41,735 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e315d10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:41, skipping insertion in model container [2022-02-21 04:18:41,736 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:41" (1/1) ... [2022-02-21 04:18:41,740 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:18:41,770 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:18:41,889 WARN L230 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_spec5_product35.cil.c[1605,1618] [2022-02-21 04:18:42,029 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:42,035 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:18:42,047 WARN L230 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_spec5_product35.cil.c[1605,1618] [2022-02-21 04:18:42,083 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:42,100 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:18:42,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:42 WrapperNode [2022-02-21 04:18:42,105 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:42,105 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:42,106 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:18:42,106 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:18:42,110 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:42" (1/1) ... [2022-02-21 04:18:42,128 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:42" (1/1) ... [2022-02-21 04:18:42,163 INFO L137 Inliner]: procedures = 55, calls = 154, calls flagged for inlining = 51, calls inlined = 56, statements flattened = 436 [2022-02-21 04:18:42,163 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:42,164 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:18:42,164 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:18:42,164 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:18:42,170 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:42" (1/1) ... [2022-02-21 04:18:42,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:42" (1/1) ... [2022-02-21 04:18:42,172 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:42" (1/1) ... [2022-02-21 04:18:42,172 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:42" (1/1) ... [2022-02-21 04:18:42,176 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:42" (1/1) ... [2022-02-21 04:18:42,186 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:42" (1/1) ... [2022-02-21 04:18:42,187 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:42" (1/1) ... [2022-02-21 04:18:42,189 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:18:42,189 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:18:42,190 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:18:42,190 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:18:42,190 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:42" (1/1) ... [2022-02-21 04:18:42,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:18:42,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:18:42,226 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) [2022-02-21 04:18:42,228 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 [2022-02-21 04:18:42,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:18:42,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:18:42,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:18:42,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:18:42,323 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:18:42,324 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:18:42,680 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:18:42,685 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:18:42,685 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:18:42,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:42 BoogieIcfgContainer [2022-02-21 04:18:42,686 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:18:42,687 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:18:42,687 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:18:42,694 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:18:42,695 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:42,695 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:18:41" (1/3) ... [2022-02-21 04:18:42,696 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@36283677 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:42, skipping insertion in model container [2022-02-21 04:18:42,696 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:42,696 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:42" (2/3) ... [2022-02-21 04:18:42,696 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@36283677 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:42, skipping insertion in model container [2022-02-21 04:18:42,696 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:42,696 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:42" (3/3) ... [2022-02-21 04:18:42,697 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product35.cil.c [2022-02-21 04:18:42,728 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:18:42,728 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:18:42,728 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:18:42,728 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:18:42,728 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:18:42,728 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:18:42,728 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:18:42,728 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:18:42,743 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 119 states, 118 states have (on average 1.3728813559322033) internal successors, (162), 118 states have internal predecessors, (162), 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) [2022-02-21 04:18:42,775 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 76 [2022-02-21 04:18:42,776 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:42,776 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:42,780 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:42,780 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:42,780 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:18:42,783 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 119 states, 118 states have (on average 1.3728813559322033) internal successors, (162), 118 states have internal predecessors, (162), 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) [2022-02-21 04:18:42,796 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 76 [2022-02-21 04:18:42,796 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:42,796 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:42,797 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:42,797 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:42,805 INFO L791 eck$LassoCheckResult]: Stem: 109#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; 38#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 74#L553true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 31#L546true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 64#L561true main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 84#L151true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 44#L122true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 78#L914true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_#t~nondet32#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 29#L577-2true [2022-02-21 04:18:42,806 INFO L793 eck$LassoCheckResult]: Loop: 29#L577-2true assume !false; 39#L578true assume test_~splverifierCounter~0#1 < 4; 15#L579true test_~tmp~4#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 116#L587true assume !(0 != test_~tmp~4#1); 54#L587-2true test_~tmp___0~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 105#L597true assume !(0 != test_~tmp___0~0#1); 52#L597-2true test_~tmp___2~0#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; 28#L607true assume 0 != test_~tmp___2~0#1; 86#L613-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret49#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; 40#L833true __utac_acc__Specification5_spec__2_#t~ret49#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret49#1;havoc __utac_acc__Specification5_spec__2_#t~ret49#1; 89#L924true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 34#L748true assume !(0 != ~pumpRunning~0); 5#L748-2true assume !(0 != ~systemActive~0); 59#L755-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_~tmp~7#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~7#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 11#L714true __utac_acc__Specification5_spec__3_#t~ret50#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~7#1 := __utac_acc__Specification5_spec__3_#t~ret50#1;havoc __utac_acc__Specification5_spec__3_#t~ret50#1; 69#L935true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7#1); 81#L935-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 93#L765true assume { :end_inline_timeShift } true; 29#L577-2true [2022-02-21 04:18:42,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:42,813 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-02-21 04:18:42,820 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:42,821 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326069821] [2022-02-21 04:18:42,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:42,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:42,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:42,946 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:42,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:43,001 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:43,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:43,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1007690196, now seen corresponding path program 1 times [2022-02-21 04:18:43,006 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:43,007 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302846140] [2022-02-21 04:18:43,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:43,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:43,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:43,031 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:43,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:43,041 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:43,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:43,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1947924693, now seen corresponding path program 1 times [2022-02-21 04:18:43,044 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:43,044 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124171899] [2022-02-21 04:18:43,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:43,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:43,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:43,179 INFO L290 TraceCheckUtils]: 0: Hoare triple {127#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; {129#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:43,180 INFO L290 TraceCheckUtils]: 1: Hoare triple {129#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; {129#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:43,180 INFO L290 TraceCheckUtils]: 2: Hoare triple {129#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {129#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:43,181 INFO L290 TraceCheckUtils]: 3: Hoare triple {129#(= 1 ~systemActive~0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; {130#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:18:43,181 INFO L290 TraceCheckUtils]: 4: Hoare triple {130#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; {131#(= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0)} is VALID [2022-02-21 04:18:43,182 INFO L290 TraceCheckUtils]: 5: Hoare triple {131#(= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0)} assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; {132#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:43,182 INFO L290 TraceCheckUtils]: 6: Hoare triple {132#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; {132#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:43,183 INFO L290 TraceCheckUtils]: 7: Hoare triple {132#(not (= 0 ~systemActive~0))} assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_#t~nondet32#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {132#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:43,183 INFO L290 TraceCheckUtils]: 8: Hoare triple {132#(not (= 0 ~systemActive~0))} assume !false; {132#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:43,184 INFO L290 TraceCheckUtils]: 9: Hoare triple {132#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {132#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:43,185 INFO L290 TraceCheckUtils]: 10: Hoare triple {132#(not (= 0 ~systemActive~0))} test_~tmp~4#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; {132#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:43,185 INFO L290 TraceCheckUtils]: 11: Hoare triple {132#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~4#1); {132#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:43,185 INFO L290 TraceCheckUtils]: 12: Hoare triple {132#(not (= 0 ~systemActive~0))} test_~tmp___0~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; {132#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:43,186 INFO L290 TraceCheckUtils]: 13: Hoare triple {132#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~0#1); {132#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:43,186 INFO L290 TraceCheckUtils]: 14: Hoare triple {132#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; {132#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:43,187 INFO L290 TraceCheckUtils]: 15: Hoare triple {132#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0#1; {132#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:43,187 INFO L290 TraceCheckUtils]: 16: Hoare triple {132#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret49#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; {132#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:43,188 INFO L290 TraceCheckUtils]: 17: Hoare triple {132#(not (= 0 ~systemActive~0))} __utac_acc__Specification5_spec__2_#t~ret49#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret49#1;havoc __utac_acc__Specification5_spec__2_#t~ret49#1; {132#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:43,188 INFO L290 TraceCheckUtils]: 18: Hoare triple {132#(not (= 0 ~systemActive~0))} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {132#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:43,189 INFO L290 TraceCheckUtils]: 19: Hoare triple {132#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {132#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:43,189 INFO L290 TraceCheckUtils]: 20: Hoare triple {132#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {128#false} is VALID [2022-02-21 04:18:43,189 INFO L290 TraceCheckUtils]: 21: Hoare triple {128#false} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_~tmp~7#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~7#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; {128#false} is VALID [2022-02-21 04:18:43,190 INFO L290 TraceCheckUtils]: 22: Hoare triple {128#false} __utac_acc__Specification5_spec__3_#t~ret50#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~7#1 := __utac_acc__Specification5_spec__3_#t~ret50#1;havoc __utac_acc__Specification5_spec__3_#t~ret50#1; {128#false} is VALID [2022-02-21 04:18:43,190 INFO L290 TraceCheckUtils]: 23: Hoare triple {128#false} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7#1); {128#false} is VALID [2022-02-21 04:18:43,191 INFO L290 TraceCheckUtils]: 24: Hoare triple {128#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {128#false} is VALID [2022-02-21 04:18:43,191 INFO L290 TraceCheckUtils]: 25: Hoare triple {128#false} assume { :end_inline_timeShift } true; {128#false} is VALID [2022-02-21 04:18:43,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:18:43,192 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:43,193 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124171899] [2022-02-21 04:18:43,193 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124171899] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:43,194 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:43,194 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:18:43,194 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945002875] [2022-02-21 04:18:43,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:43,326 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:43,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:18:43,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:18:43,347 INFO L87 Difference]: Start difference. First operand has 119 states, 118 states have (on average 1.3728813559322033) internal successors, (162), 118 states have internal predecessors, (162), 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 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 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) [2022-02-21 04:18:43,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:43,893 INFO L93 Difference]: Finished difference Result 297 states and 384 transitions. [2022-02-21 04:18:43,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:18:43,894 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 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) [2022-02-21 04:18:43,913 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 26 edges. 26 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:43,916 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 297 states and 384 transitions. [2022-02-21 04:18:43,931 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 189 [2022-02-21 04:18:43,940 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 297 states to 267 states and 354 transitions. [2022-02-21 04:18:43,941 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 267 [2022-02-21 04:18:43,942 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 267 [2022-02-21 04:18:43,942 INFO L73 IsDeterministic]: Start isDeterministic. Operand 267 states and 354 transitions. [2022-02-21 04:18:43,943 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:43,944 INFO L681 BuchiCegarLoop]: Abstraction has 267 states and 354 transitions. [2022-02-21 04:18:43,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states and 354 transitions. [2022-02-21 04:18:43,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 167. [2022-02-21 04:18:43,967 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:43,969 INFO L82 GeneralOperation]: Start isEquivalent. First operand 267 states and 354 transitions. Second operand has 167 states, 167 states have (on average 1.3233532934131738) internal successors, (221), 166 states have internal predecessors, (221), 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) [2022-02-21 04:18:43,970 INFO L74 IsIncluded]: Start isIncluded. First operand 267 states and 354 transitions. Second operand has 167 states, 167 states have (on average 1.3233532934131738) internal successors, (221), 166 states have internal predecessors, (221), 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) [2022-02-21 04:18:43,971 INFO L87 Difference]: Start difference. First operand 267 states and 354 transitions. Second operand has 167 states, 167 states have (on average 1.3233532934131738) internal successors, (221), 166 states have internal predecessors, (221), 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) [2022-02-21 04:18:43,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:43,979 INFO L93 Difference]: Finished difference Result 267 states and 354 transitions. [2022-02-21 04:18:43,979 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 354 transitions. [2022-02-21 04:18:43,981 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:43,981 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:43,982 INFO L74 IsIncluded]: Start isIncluded. First operand has 167 states, 167 states have (on average 1.3233532934131738) internal successors, (221), 166 states have internal predecessors, (221), 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 267 states and 354 transitions. [2022-02-21 04:18:43,982 INFO L87 Difference]: Start difference. First operand has 167 states, 167 states have (on average 1.3233532934131738) internal successors, (221), 166 states have internal predecessors, (221), 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 267 states and 354 transitions. [2022-02-21 04:18:43,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:43,989 INFO L93 Difference]: Finished difference Result 267 states and 354 transitions. [2022-02-21 04:18:43,989 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 354 transitions. [2022-02-21 04:18:43,990 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:43,991 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:43,991 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:43,991 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:43,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 167 states have (on average 1.3233532934131738) internal successors, (221), 166 states have internal predecessors, (221), 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) [2022-02-21 04:18:43,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 221 transitions. [2022-02-21 04:18:43,996 INFO L704 BuchiCegarLoop]: Abstraction has 167 states and 221 transitions. [2022-02-21 04:18:43,996 INFO L587 BuchiCegarLoop]: Abstraction has 167 states and 221 transitions. [2022-02-21 04:18:43,997 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:18:43,997 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 167 states and 221 transitions. [2022-02-21 04:18:43,998 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 118 [2022-02-21 04:18:43,998 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:43,998 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:43,999 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:43,999 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] [2022-02-21 04:18:43,999 INFO L791 eck$LassoCheckResult]: Stem: 539#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; 491#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 492#L553 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 480#L546 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 481#L561 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 523#L151 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 500#L122 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 501#L914 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_#t~nondet32#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 476#L577-2 [2022-02-21 04:18:43,999 INFO L793 eck$LassoCheckResult]: Loop: 476#L577-2 assume !false; 477#L578 assume test_~splverifierCounter~0#1 < 4; 454#L579 test_~tmp~4#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 455#L587 assume !(0 != test_~tmp~4#1); 489#L587-2 test_~tmp___0~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 514#L597 assume !(0 != test_~tmp___0~0#1); 499#L597-2 test_~tmp___2~0#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; 473#L607 assume 0 != test_~tmp___2~0#1; 474#L613-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret49#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; 494#L833 __utac_acc__Specification5_spec__2_#t~ret49#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret49#1;havoc __utac_acc__Specification5_spec__2_#t~ret49#1; 495#L924 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 484#L748 assume !(0 != ~pumpRunning~0); 434#L748-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 435#L780 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 436#L772-1 assume { :end_inline_processEnvironment__wrappee__base } true; 439#L780-1 assume { :end_inline_processEnvironment } true; 440#L755-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_~tmp~7#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~7#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 445#L714 __utac_acc__Specification5_spec__3_#t~ret50#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~7#1 := __utac_acc__Specification5_spec__3_#t~ret50#1;havoc __utac_acc__Specification5_spec__3_#t~ret50#1; 446#L935 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7#1); 526#L935-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 531#L765 assume { :end_inline_timeShift } true; 476#L577-2 [2022-02-21 04:18:44,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:44,000 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-02-21 04:18:44,000 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:44,001 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645087575] [2022-02-21 04:18:44,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:44,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:44,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:44,012 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:44,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:44,022 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:44,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:44,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1368195016, now seen corresponding path program 1 times [2022-02-21 04:18:44,023 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:44,023 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742851072] [2022-02-21 04:18:44,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:44,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:44,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:44,037 INFO L290 TraceCheckUtils]: 0: Hoare triple {1140#true} assume !false; {1140#true} is VALID [2022-02-21 04:18:44,037 INFO L290 TraceCheckUtils]: 1: Hoare triple {1140#true} assume test_~splverifierCounter~0#1 < 4; {1140#true} is VALID [2022-02-21 04:18:44,037 INFO L290 TraceCheckUtils]: 2: Hoare triple {1140#true} test_~tmp~4#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; {1140#true} is VALID [2022-02-21 04:18:44,038 INFO L290 TraceCheckUtils]: 3: Hoare triple {1140#true} assume !(0 != test_~tmp~4#1); {1140#true} is VALID [2022-02-21 04:18:44,038 INFO L290 TraceCheckUtils]: 4: Hoare triple {1140#true} test_~tmp___0~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; {1140#true} is VALID [2022-02-21 04:18:44,038 INFO L290 TraceCheckUtils]: 5: Hoare triple {1140#true} assume !(0 != test_~tmp___0~0#1); {1140#true} is VALID [2022-02-21 04:18:44,038 INFO L290 TraceCheckUtils]: 6: Hoare triple {1140#true} test_~tmp___2~0#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; {1140#true} is VALID [2022-02-21 04:18:44,038 INFO L290 TraceCheckUtils]: 7: Hoare triple {1140#true} assume 0 != test_~tmp___2~0#1; {1140#true} is VALID [2022-02-21 04:18:44,039 INFO L290 TraceCheckUtils]: 8: Hoare triple {1140#true} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret49#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; {1140#true} is VALID [2022-02-21 04:18:44,039 INFO L290 TraceCheckUtils]: 9: Hoare triple {1140#true} __utac_acc__Specification5_spec__2_#t~ret49#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret49#1;havoc __utac_acc__Specification5_spec__2_#t~ret49#1; {1140#true} is VALID [2022-02-21 04:18:44,039 INFO L290 TraceCheckUtils]: 10: Hoare triple {1140#true} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {1140#true} is VALID [2022-02-21 04:18:44,040 INFO L290 TraceCheckUtils]: 11: Hoare triple {1140#true} assume !(0 != ~pumpRunning~0); {1142#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:44,040 INFO L290 TraceCheckUtils]: 12: Hoare triple {1142#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; {1142#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:44,040 INFO L290 TraceCheckUtils]: 13: Hoare triple {1142#(= ~pumpRunning~0 0)} assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {1141#false} is VALID [2022-02-21 04:18:44,041 INFO L290 TraceCheckUtils]: 14: Hoare triple {1141#false} assume { :end_inline_processEnvironment__wrappee__base } true; {1141#false} is VALID [2022-02-21 04:18:44,041 INFO L290 TraceCheckUtils]: 15: Hoare triple {1141#false} assume { :end_inline_processEnvironment } true; {1141#false} is VALID [2022-02-21 04:18:44,041 INFO L290 TraceCheckUtils]: 16: Hoare triple {1141#false} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_~tmp~7#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~7#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; {1141#false} is VALID [2022-02-21 04:18:44,041 INFO L290 TraceCheckUtils]: 17: Hoare triple {1141#false} __utac_acc__Specification5_spec__3_#t~ret50#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~7#1 := __utac_acc__Specification5_spec__3_#t~ret50#1;havoc __utac_acc__Specification5_spec__3_#t~ret50#1; {1141#false} is VALID [2022-02-21 04:18:44,041 INFO L290 TraceCheckUtils]: 18: Hoare triple {1141#false} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7#1); {1141#false} is VALID [2022-02-21 04:18:44,042 INFO L290 TraceCheckUtils]: 19: Hoare triple {1141#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {1141#false} is VALID [2022-02-21 04:18:44,042 INFO L290 TraceCheckUtils]: 20: Hoare triple {1141#false} assume { :end_inline_timeShift } true; {1141#false} is VALID [2022-02-21 04:18:44,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:18:44,042 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:44,042 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742851072] [2022-02-21 04:18:44,043 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742851072] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:44,043 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:44,043 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:18:44,043 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410817038] [2022-02-21 04:18:44,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:44,043 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:44,044 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:44,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:18:44,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:18:44,045 INFO L87 Difference]: Start difference. First operand 167 states and 221 transitions. cyclomatic complexity: 57 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-02-21 04:18:44,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:44,175 INFO L93 Difference]: Finished difference Result 223 states and 284 transitions. [2022-02-21 04:18:44,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:18:44,175 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-02-21 04:18:44,187 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 21 edges. 21 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:44,188 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 223 states and 284 transitions. [2022-02-21 04:18:44,192 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 161 [2022-02-21 04:18:44,196 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 223 states to 223 states and 284 transitions. [2022-02-21 04:18:44,197 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 223 [2022-02-21 04:18:44,197 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 223 [2022-02-21 04:18:44,197 INFO L73 IsDeterministic]: Start isDeterministic. Operand 223 states and 284 transitions. [2022-02-21 04:18:44,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:44,198 INFO L681 BuchiCegarLoop]: Abstraction has 223 states and 284 transitions. [2022-02-21 04:18:44,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states and 284 transitions. [2022-02-21 04:18:44,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 223. [2022-02-21 04:18:44,203 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:44,203 INFO L82 GeneralOperation]: Start isEquivalent. First operand 223 states and 284 transitions. Second operand has 223 states, 223 states have (on average 1.2735426008968609) internal successors, (284), 222 states have internal predecessors, (284), 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) [2022-02-21 04:18:44,204 INFO L74 IsIncluded]: Start isIncluded. First operand 223 states and 284 transitions. Second operand has 223 states, 223 states have (on average 1.2735426008968609) internal successors, (284), 222 states have internal predecessors, (284), 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) [2022-02-21 04:18:44,204 INFO L87 Difference]: Start difference. First operand 223 states and 284 transitions. Second operand has 223 states, 223 states have (on average 1.2735426008968609) internal successors, (284), 222 states have internal predecessors, (284), 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) [2022-02-21 04:18:44,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:44,208 INFO L93 Difference]: Finished difference Result 223 states and 284 transitions. [2022-02-21 04:18:44,208 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 284 transitions. [2022-02-21 04:18:44,209 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:44,209 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:44,210 INFO L74 IsIncluded]: Start isIncluded. First operand has 223 states, 223 states have (on average 1.2735426008968609) internal successors, (284), 222 states have internal predecessors, (284), 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 223 states and 284 transitions. [2022-02-21 04:18:44,210 INFO L87 Difference]: Start difference. First operand has 223 states, 223 states have (on average 1.2735426008968609) internal successors, (284), 222 states have internal predecessors, (284), 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 223 states and 284 transitions. [2022-02-21 04:18:44,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:44,214 INFO L93 Difference]: Finished difference Result 223 states and 284 transitions. [2022-02-21 04:18:44,214 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 284 transitions. [2022-02-21 04:18:44,215 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:44,215 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:44,215 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:44,215 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:44,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 223 states have (on average 1.2735426008968609) internal successors, (284), 222 states have internal predecessors, (284), 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) [2022-02-21 04:18:44,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 284 transitions. [2022-02-21 04:18:44,219 INFO L704 BuchiCegarLoop]: Abstraction has 223 states and 284 transitions. [2022-02-21 04:18:44,219 INFO L587 BuchiCegarLoop]: Abstraction has 223 states and 284 transitions. [2022-02-21 04:18:44,220 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:18:44,220 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 223 states and 284 transitions. [2022-02-21 04:18:44,221 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 161 [2022-02-21 04:18:44,221 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:44,221 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:44,221 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:44,221 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, 1, 1, 1] [2022-02-21 04:18:44,222 INFO L791 eck$LassoCheckResult]: Stem: 1487#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; 1423#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 1424#L553 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1413#L546 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 1414#L561 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 1460#L151 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 1434#L122 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1435#L914 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_#t~nondet32#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1470#L577-2 [2022-02-21 04:18:44,222 INFO L793 eck$LassoCheckResult]: Loop: 1470#L577-2 assume !false; 1567#L578 assume test_~splverifierCounter~0#1 < 4; 1384#L579 test_~tmp~4#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 1385#L587 assume !(0 != test_~tmp~4#1); 1421#L587-2 test_~tmp___0~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 1448#L597 assume !(0 != test_~tmp___0~0#1); 1433#L597-2 test_~tmp___2~0#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; 1406#L607 assume 0 != test_~tmp___2~0#1; 1407#L613-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret49#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; 1427#L833 __utac_acc__Specification5_spec__2_#t~ret49#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret49#1;havoc __utac_acc__Specification5_spec__2_#t~ret49#1; 1428#L924 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1417#L748 assume !(0 != ~pumpRunning~0); 1366#L748-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 1367#L780 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret48#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~11#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 1368#L722 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 1388#L727 isHighWaterLevel_#t~ret48#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret48#1;havoc isHighWaterLevel_#t~ret48#1; 1389#L882 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1422#L882-2 isHighWaterLevel_~retValue_acc~11#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~11#1; 1393#L888 processEnvironment_#t~ret38#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~5#1 := processEnvironment_#t~ret38#1;havoc processEnvironment_#t~ret38#1; 1394#L784 assume !(0 != processEnvironment_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1369#L772 assume { :end_inline_processEnvironment__wrappee__base } true; 1370#L780-1 assume { :end_inline_processEnvironment } true; 1371#L755-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_~tmp~7#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~7#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 1376#L714 __utac_acc__Specification5_spec__3_#t~ret50#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~7#1 := __utac_acc__Specification5_spec__3_#t~ret50#1;havoc __utac_acc__Specification5_spec__3_#t~ret50#1; 1377#L935 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7#1); 1569#L935-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1568#L765 assume { :end_inline_timeShift } true; 1470#L577-2 [2022-02-21 04:18:44,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:44,222 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-02-21 04:18:44,223 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:44,223 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338712126] [2022-02-21 04:18:44,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:44,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:44,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:44,230 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:44,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:44,238 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:44,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:44,239 INFO L85 PathProgramCache]: Analyzing trace with hash -926749152, now seen corresponding path program 1 times [2022-02-21 04:18:44,239 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:44,239 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846913626] [2022-02-21 04:18:44,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:44,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:44,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:44,277 INFO L290 TraceCheckUtils]: 0: Hoare triple {2040#true} assume !false; {2040#true} is VALID [2022-02-21 04:18:44,278 INFO L290 TraceCheckUtils]: 1: Hoare triple {2040#true} assume test_~splverifierCounter~0#1 < 4; {2040#true} is VALID [2022-02-21 04:18:44,278 INFO L290 TraceCheckUtils]: 2: Hoare triple {2040#true} test_~tmp~4#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; {2040#true} is VALID [2022-02-21 04:18:44,278 INFO L290 TraceCheckUtils]: 3: Hoare triple {2040#true} assume !(0 != test_~tmp~4#1); {2040#true} is VALID [2022-02-21 04:18:44,278 INFO L290 TraceCheckUtils]: 4: Hoare triple {2040#true} test_~tmp___0~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; {2040#true} is VALID [2022-02-21 04:18:44,278 INFO L290 TraceCheckUtils]: 5: Hoare triple {2040#true} assume !(0 != test_~tmp___0~0#1); {2040#true} is VALID [2022-02-21 04:18:44,279 INFO L290 TraceCheckUtils]: 6: Hoare triple {2040#true} test_~tmp___2~0#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; {2040#true} is VALID [2022-02-21 04:18:44,279 INFO L290 TraceCheckUtils]: 7: Hoare triple {2040#true} assume 0 != test_~tmp___2~0#1; {2040#true} is VALID [2022-02-21 04:18:44,279 INFO L290 TraceCheckUtils]: 8: Hoare triple {2040#true} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret49#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; {2040#true} is VALID [2022-02-21 04:18:44,279 INFO L290 TraceCheckUtils]: 9: Hoare triple {2040#true} __utac_acc__Specification5_spec__2_#t~ret49#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret49#1;havoc __utac_acc__Specification5_spec__2_#t~ret49#1; {2040#true} is VALID [2022-02-21 04:18:44,279 INFO L290 TraceCheckUtils]: 10: Hoare triple {2040#true} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {2040#true} is VALID [2022-02-21 04:18:44,279 INFO L290 TraceCheckUtils]: 11: Hoare triple {2040#true} assume !(0 != ~pumpRunning~0); {2040#true} is VALID [2022-02-21 04:18:44,280 INFO L290 TraceCheckUtils]: 12: Hoare triple {2040#true} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; {2040#true} is VALID [2022-02-21 04:18:44,280 INFO L290 TraceCheckUtils]: 13: Hoare triple {2040#true} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret48#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~11#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; {2040#true} is VALID [2022-02-21 04:18:44,282 INFO L290 TraceCheckUtils]: 14: Hoare triple {2040#true} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; {2042#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:44,282 INFO L290 TraceCheckUtils]: 15: Hoare triple {2042#(not (= 2 ~waterLevel~0))} isHighWaterLevel_#t~ret48#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret48#1;havoc isHighWaterLevel_#t~ret48#1; {2042#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:44,282 INFO L290 TraceCheckUtils]: 16: Hoare triple {2042#(not (= 2 ~waterLevel~0))} assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~1#1 := 0; {2042#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:44,283 INFO L290 TraceCheckUtils]: 17: Hoare triple {2042#(not (= 2 ~waterLevel~0))} isHighWaterLevel_~retValue_acc~11#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~11#1; {2042#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:44,283 INFO L290 TraceCheckUtils]: 18: Hoare triple {2042#(not (= 2 ~waterLevel~0))} processEnvironment_#t~ret38#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~5#1 := processEnvironment_#t~ret38#1;havoc processEnvironment_#t~ret38#1; {2042#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:44,283 INFO L290 TraceCheckUtils]: 19: Hoare triple {2042#(not (= 2 ~waterLevel~0))} assume !(0 != processEnvironment_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {2042#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:44,284 INFO L290 TraceCheckUtils]: 20: Hoare triple {2042#(not (= 2 ~waterLevel~0))} assume { :end_inline_processEnvironment__wrappee__base } true; {2042#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:44,284 INFO L290 TraceCheckUtils]: 21: Hoare triple {2042#(not (= 2 ~waterLevel~0))} assume { :end_inline_processEnvironment } true; {2042#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:44,284 INFO L290 TraceCheckUtils]: 22: Hoare triple {2042#(not (= 2 ~waterLevel~0))} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_~tmp~7#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~7#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; {2043#(not (= |ULTIMATE.start_getWaterLevel_#res#1| 2))} is VALID [2022-02-21 04:18:44,285 INFO L290 TraceCheckUtils]: 23: Hoare triple {2043#(not (= |ULTIMATE.start_getWaterLevel_#res#1| 2))} __utac_acc__Specification5_spec__3_#t~ret50#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~7#1 := __utac_acc__Specification5_spec__3_#t~ret50#1;havoc __utac_acc__Specification5_spec__3_#t~ret50#1; {2044#(not (= 2 |ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~7#1|))} is VALID [2022-02-21 04:18:44,285 INFO L290 TraceCheckUtils]: 24: Hoare triple {2044#(not (= 2 |ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~7#1|))} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7#1); {2041#false} is VALID [2022-02-21 04:18:44,285 INFO L290 TraceCheckUtils]: 25: Hoare triple {2041#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {2041#false} is VALID [2022-02-21 04:18:44,286 INFO L290 TraceCheckUtils]: 26: Hoare triple {2041#false} assume { :end_inline_timeShift } true; {2041#false} is VALID [2022-02-21 04:18:44,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:18:44,286 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:44,286 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846913626] [2022-02-21 04:18:44,286 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846913626] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:44,287 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:44,287 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:18:44,287 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013204817] [2022-02-21 04:18:44,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:44,287 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:44,287 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:44,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:18:44,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:18:44,288 INFO L87 Difference]: Start difference. First operand 223 states and 284 transitions. cyclomatic complexity: 64 Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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) [2022-02-21 04:18:44,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:44,880 INFO L93 Difference]: Finished difference Result 832 states and 1048 transitions. [2022-02-21 04:18:44,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-21 04:18:44,881 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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) [2022-02-21 04:18:44,897 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:44,898 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 832 states and 1048 transitions. [2022-02-21 04:18:44,922 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 595 [2022-02-21 04:18:44,946 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 832 states to 832 states and 1048 transitions. [2022-02-21 04:18:44,947 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 832 [2022-02-21 04:18:44,947 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 832 [2022-02-21 04:18:44,947 INFO L73 IsDeterministic]: Start isDeterministic. Operand 832 states and 1048 transitions. [2022-02-21 04:18:44,949 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:44,949 INFO L681 BuchiCegarLoop]: Abstraction has 832 states and 1048 transitions. [2022-02-21 04:18:44,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states and 1048 transitions. [2022-02-21 04:18:44,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 435. [2022-02-21 04:18:44,958 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:44,959 INFO L82 GeneralOperation]: Start isEquivalent. First operand 832 states and 1048 transitions. Second operand has 435 states, 435 states have (on average 1.2528735632183907) internal successors, (545), 434 states have internal predecessors, (545), 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) [2022-02-21 04:18:44,960 INFO L74 IsIncluded]: Start isIncluded. First operand 832 states and 1048 transitions. Second operand has 435 states, 435 states have (on average 1.2528735632183907) internal successors, (545), 434 states have internal predecessors, (545), 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) [2022-02-21 04:18:44,961 INFO L87 Difference]: Start difference. First operand 832 states and 1048 transitions. Second operand has 435 states, 435 states have (on average 1.2528735632183907) internal successors, (545), 434 states have internal predecessors, (545), 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) [2022-02-21 04:18:44,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:44,983 INFO L93 Difference]: Finished difference Result 832 states and 1048 transitions. [2022-02-21 04:18:44,983 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1048 transitions. [2022-02-21 04:18:44,984 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:44,985 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:44,985 INFO L74 IsIncluded]: Start isIncluded. First operand has 435 states, 435 states have (on average 1.2528735632183907) internal successors, (545), 434 states have internal predecessors, (545), 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 832 states and 1048 transitions. [2022-02-21 04:18:44,986 INFO L87 Difference]: Start difference. First operand has 435 states, 435 states have (on average 1.2528735632183907) internal successors, (545), 434 states have internal predecessors, (545), 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 832 states and 1048 transitions. [2022-02-21 04:18:45,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:45,006 INFO L93 Difference]: Finished difference Result 832 states and 1048 transitions. [2022-02-21 04:18:45,007 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1048 transitions. [2022-02-21 04:18:45,008 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:45,008 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:45,027 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:45,027 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:45,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 435 states have (on average 1.2528735632183907) internal successors, (545), 434 states have internal predecessors, (545), 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) [2022-02-21 04:18:45,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 545 transitions. [2022-02-21 04:18:45,034 INFO L704 BuchiCegarLoop]: Abstraction has 435 states and 545 transitions. [2022-02-21 04:18:45,035 INFO L587 BuchiCegarLoop]: Abstraction has 435 states and 545 transitions. [2022-02-21 04:18:45,035 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2022-02-21 04:18:45,035 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 435 states and 545 transitions. [2022-02-21 04:18:45,036 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 320 [2022-02-21 04:18:45,036 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:45,036 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:45,037 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:45,037 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, 1, 1, 1, 1, 1] [2022-02-21 04:18:45,037 INFO L791 eck$LassoCheckResult]: Stem: 3030#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; 2947#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 2948#L553 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2936#L546 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 2937#L561 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 2987#L151 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 2959#L122 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 2960#L914 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_#t~nondet32#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3000#L577-2 [2022-02-21 04:18:45,038 INFO L793 eck$LassoCheckResult]: Loop: 3000#L577-2 assume !false; 3275#L578 assume test_~splverifierCounter~0#1 < 4; 3274#L579 test_~tmp~4#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 3272#L587 assume !(0 != test_~tmp~4#1); 3270#L587-2 test_~tmp___0~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 3268#L597 assume !(0 != test_~tmp___0~0#1); 3266#L597-2 test_~tmp___2~0#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; 3265#L607 assume 0 != test_~tmp___2~0#1; 3264#L613-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret49#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; 3294#L833 __utac_acc__Specification5_spec__2_#t~ret49#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret49#1;havoc __utac_acc__Specification5_spec__2_#t~ret49#1; 3293#L924 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 3262#L748 assume !(0 != ~pumpRunning~0); 2888#L748-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 2889#L780 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret48#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~11#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 2890#L722 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 2912#L727 isHighWaterLevel_#t~ret48#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret48#1;havoc isHighWaterLevel_#t~ret48#1; 2913#L882 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~1#1 := 0; 2946#L882-2 isHighWaterLevel_~retValue_acc~11#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~11#1; 2917#L888 processEnvironment_#t~ret38#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~5#1 := processEnvironment_#t~ret38#1;havoc processEnvironment_#t~ret38#1; 2918#L784 assume !(0 != processEnvironment_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3029#L772 assume { :end_inline_processEnvironment__wrappee__base } true; 3285#L780-1 assume { :end_inline_processEnvironment } true; 3284#L755-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_~tmp~7#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~7#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 3283#L714 __utac_acc__Specification5_spec__3_#t~ret50#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~7#1 := __utac_acc__Specification5_spec__3_#t~ret50#1;havoc __utac_acc__Specification5_spec__3_#t~ret50#1; 3282#L935 assume 2 != __utac_acc__Specification5_spec__3_~tmp~7#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; 3281#L833-1 __utac_acc__Specification5_spec__3_#t~ret51#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~2#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; 3280#L939 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2#1); 3278#L935-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 3277#L765 assume { :end_inline_timeShift } true; 3000#L577-2 [2022-02-21 04:18:45,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:45,038 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2022-02-21 04:18:45,038 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:45,038 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535663442] [2022-02-21 04:18:45,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:45,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:45,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:45,045 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:45,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:45,052 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:45,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:45,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1566802949, now seen corresponding path program 1 times [2022-02-21 04:18:45,053 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:45,053 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111948788] [2022-02-21 04:18:45,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:45,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:45,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:45,058 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:45,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:45,062 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:45,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:45,063 INFO L85 PathProgramCache]: Analyzing trace with hash -660386382, now seen corresponding path program 1 times [2022-02-21 04:18:45,063 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:45,063 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39205343] [2022-02-21 04:18:45,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:45,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:45,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:45,073 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:45,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:45,083 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:47,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:18:47 BoogieIcfgContainer [2022-02-21 04:18:47,614 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:18:47,614 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:18:47,614 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:18:47,615 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:18:47,615 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:42" (3/4) ... [2022-02-21 04:18:47,617 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:18:47,649 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:18:47,649 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:18:47,650 INFO L158 Benchmark]: Toolchain (without parser) took 5921.40ms. Allocated memory was 86.0MB in the beginning and 167.8MB in the end (delta: 81.8MB). Free memory was 50.1MB in the beginning and 119.8MB in the end (delta: -69.7MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. [2022-02-21 04:18:47,651 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 86.0MB. Free memory was 56.4MB in the beginning and 56.4MB in the end (delta: 23.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:18:47,651 INFO L158 Benchmark]: CACSL2BoogieTranslator took 373.34ms. Allocated memory was 86.0MB in the beginning and 109.1MB in the end (delta: 23.1MB). Free memory was 50.0MB in the beginning and 72.7MB in the end (delta: -22.7MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2022-02-21 04:18:47,651 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.11ms. Allocated memory is still 109.1MB. Free memory was 72.7MB in the beginning and 69.3MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:47,651 INFO L158 Benchmark]: Boogie Preprocessor took 25.04ms. Allocated memory is still 109.1MB. Free memory was 69.3MB in the beginning and 67.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:47,652 INFO L158 Benchmark]: RCFGBuilder took 496.98ms. Allocated memory is still 109.1MB. Free memory was 67.3MB in the beginning and 75.0MB in the end (delta: -7.7MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. [2022-02-21 04:18:47,652 INFO L158 Benchmark]: BuchiAutomizer took 4926.83ms. Allocated memory was 109.1MB in the beginning and 167.8MB in the end (delta: 58.7MB). Free memory was 74.5MB in the beginning and 121.9MB in the end (delta: -47.4MB). Peak memory consumption was 70.8MB. Max. memory is 16.1GB. [2022-02-21 04:18:47,652 INFO L158 Benchmark]: Witness Printer took 35.16ms. Allocated memory is still 167.8MB. Free memory was 121.9MB in the beginning and 119.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:47,654 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 86.0MB. Free memory was 56.4MB in the beginning and 56.4MB in the end (delta: 23.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 373.34ms. Allocated memory was 86.0MB in the beginning and 109.1MB in the end (delta: 23.1MB). Free memory was 50.0MB in the beginning and 72.7MB in the end (delta: -22.7MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.11ms. Allocated memory is still 109.1MB. Free memory was 72.7MB in the beginning and 69.3MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.04ms. Allocated memory is still 109.1MB. Free memory was 69.3MB in the beginning and 67.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 496.98ms. Allocated memory is still 109.1MB. Free memory was 67.3MB in the beginning and 75.0MB in the end (delta: -7.7MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 4926.83ms. Allocated memory was 109.1MB in the beginning and 167.8MB in the end (delta: 58.7MB). Free memory was 74.5MB in the beginning and 121.9MB in the end (delta: -47.4MB). Peak memory consumption was 70.8MB. Max. memory is 16.1GB. * Witness Printer took 35.16ms. Allocated memory is still 167.8MB. Free memory was 121.9MB in the beginning and 119.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. 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 6 locations. The remainder module has 435 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.8s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.1s. Construction of modules took 0.1s. Büchi inclusion checks took 1.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 497 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 435 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1405 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1405 mSDsluCounter, 1873 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1379 mSDsCounter, 49 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 164 IncrementalHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 49 mSolverCounterUnsat, 494 mSDtfsCounter, 164 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 577]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6325dd45=0, NULL=0, tmp___0=0, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3abab919=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2d9d6048=29, tmp___0=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6ca0ea01=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@744a36d9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@54fe7af6=0, methaneLevelCritical=0, retValue_acc=0, retValue_acc=1, retValue_acc=0, \result=1, \result=1, retValue_acc=1, retValue_acc=0, tmp=1, tmp=1, tmp___2=29, \result=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, tmp=1, \result=0, tmp___0=0, tmp=0, head=0, \result=1, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@217a054=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@35cdc0b=0, tmp=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@376dda06=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7ff2691b=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 577]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L59] int cleanupTimeShifts = 4; [L334] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L639] int waterLevel = 1; [L640] int methaneLevelCritical = 0; [L736] int pumpRunning = 0; [L737] int systemActive = 1; [L908] int switchedOnBeforeTS ; [L142] int retValue_acc ; [L143] int tmp ; [L147] FCALL select_helpers() [L148] FCALL select_features() [L149] CALL, EXPR valid_product() [L557] int retValue_acc ; [L560] retValue_acc = 1 [L561] return (retValue_acc); [L149] RET, EXPR valid_product() [L149] tmp = valid_product() [L151] COND TRUE \read(tmp) [L153] FCALL setup() [L154] CALL runTest() [L132] CALL __utac_acc__Specification5_spec__1() [L913] switchedOnBeforeTS = 0 [L132] RET __utac_acc__Specification5_spec__1() [L133] CALL test() [L568] int splverifierCounter ; [L569] int tmp ; [L570] int tmp___0 ; [L571] int tmp___1 ; [L572] int tmp___2 ; [L575] splverifierCounter = 0 Loop: [L577] COND TRUE 1 [L579] COND TRUE splverifierCounter < 4 [L585] tmp = __VERIFIER_nondet_int() [L587] COND FALSE !(\read(tmp)) [L595] tmp___0 = __VERIFIER_nondet_int() [L597] COND FALSE !(\read(tmp___0)) [L605] tmp___2 = __VERIFIER_nondet_int() [L607] COND TRUE \read(tmp___2) [L622] CALL timeShift() [L746] CALL __utac_acc__Specification5_spec__2() [L922] CALL, EXPR isPumpRunning() [L829] int retValue_acc ; [L832] retValue_acc = pumpRunning [L833] return (retValue_acc); [L922] RET, EXPR isPumpRunning() [L922] switchedOnBeforeTS = isPumpRunning() [L746] RET __utac_acc__Specification5_spec__2() [L748] COND FALSE !(\read(pumpRunning)) [L755] COND TRUE \read(systemActive) [L757] CALL processEnvironment() [L777] int tmp ; [L780] COND TRUE ! pumpRunning [L782] CALL, EXPR isHighWaterLevel() [L874] int retValue_acc ; [L875] int tmp ; [L876] int tmp___0 ; [L880] CALL, EXPR isHighWaterSensorDry() [L719] int retValue_acc ; [L722] COND TRUE waterLevel < 2 [L723] retValue_acc = 1 [L724] return (retValue_acc); [L880] RET, EXPR isHighWaterSensorDry() [L880] tmp = isHighWaterSensorDry() [L882] COND TRUE \read(tmp) [L883] tmp___0 = 0 [L887] retValue_acc = tmp___0 [L888] return (retValue_acc); [L782] RET, EXPR isHighWaterLevel() [L782] tmp = isHighWaterLevel() [L784] COND FALSE !(\read(tmp)) [L790] FCALL processEnvironment__wrappee__base() [L757] RET processEnvironment() [L763] CALL __utac_acc__Specification5_spec__3() [L928] int tmp ; [L929] int tmp___0 ; [L933] CALL, EXPR getWaterLevel() [L710] int retValue_acc ; [L713] retValue_acc = waterLevel [L714] return (retValue_acc); [L933] RET, EXPR getWaterLevel() [L933] tmp = getWaterLevel() [L935] COND TRUE tmp != 2 [L937] CALL, EXPR isPumpRunning() [L829] int retValue_acc ; [L832] retValue_acc = pumpRunning [L833] return (retValue_acc); [L937] RET, EXPR isPumpRunning() [L937] tmp___0 = isPumpRunning() [L939] COND FALSE !(\read(tmp___0)) [L763] RET __utac_acc__Specification5_spec__3() [L622] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:18:47,689 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... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)