./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product56.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec5_product56.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 7bcd24ea8f621c8db79e853f5aaf064ffcae573e6c1e9f03eb1f84bb0c15fc3c --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 10:02:13,554 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 10:02:13,557 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 10:02:13,607 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 10:02:13,608 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 10:02:13,609 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 10:02:13,610 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 10:02:13,612 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 10:02:13,613 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 10:02:13,614 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 10:02:13,615 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 10:02:13,616 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 10:02:13,617 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 10:02:13,619 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 10:02:13,621 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 10:02:13,623 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 10:02:13,628 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 10:02:13,633 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 10:02:13,634 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 10:02:13,636 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 10:02:13,637 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 10:02:13,639 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 10:02:13,640 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 10:02:13,643 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 10:02:13,645 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 10:02:13,648 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 10:02:13,649 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 10:02:13,650 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 10:02:13,651 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 10:02:13,652 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 10:02:13,652 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 10:02:13,653 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 10:02:13,654 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 10:02:13,655 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 10:02:13,656 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 10:02:13,656 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 10:02:13,657 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 10:02:13,657 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 10:02:13,658 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 10:02:13,658 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 10:02:13,659 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 10:02:13,660 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-16 10:02:13,687 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 10:02:13,687 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 10:02:13,688 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 10:02:13,688 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 10:02:13,689 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 10:02:13,690 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 10:02:13,690 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 10:02:13,690 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-16 10:02:13,690 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-16 10:02:13,690 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-16 10:02:13,691 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-16 10:02:13,691 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-16 10:02:13,692 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-16 10:02:13,692 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 10:02:13,692 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-16 10:02:13,692 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-16 10:02:13,692 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 10:02:13,693 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-16 10:02:13,693 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 10:02:13,693 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-16 10:02:13,693 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-16 10:02:13,693 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-16 10:02:13,694 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-16 10:02:13,694 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 10:02:13,695 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-16 10:02:13,695 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 10:02:13,696 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-16 10:02:13,696 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 10:02:13,696 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 10:02:13,696 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 10:02:13,696 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 10:02:13,697 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 10:02:13,697 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-16 10:02:13,698 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7bcd24ea8f621c8db79e853f5aaf064ffcae573e6c1e9f03eb1f84bb0c15fc3c [2021-12-16 10:02:13,910 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 10:02:13,929 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 10:02:13,931 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 10:02:13,932 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 10:02:13,932 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 10:02:13,933 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product56.cil.c [2021-12-16 10:02:13,984 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/998124775/9c1defc267ae4a9b8954ce305c60b086/FLAG6e5d5a4b4 [2021-12-16 10:02:14,388 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 10:02:14,389 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product56.cil.c [2021-12-16 10:02:14,400 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/998124775/9c1defc267ae4a9b8954ce305c60b086/FLAG6e5d5a4b4 [2021-12-16 10:02:14,412 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/998124775/9c1defc267ae4a9b8954ce305c60b086 [2021-12-16 10:02:14,414 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 10:02:14,415 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 10:02:14,416 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 10:02:14,416 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 10:02:14,425 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 10:02:14,426 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 10:02:14" (1/1) ... [2021-12-16 10:02:14,427 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ecaf4d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:02:14, skipping insertion in model container [2021-12-16 10:02:14,427 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 10:02:14" (1/1) ... [2021-12-16 10:02:14,434 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 10:02:14,478 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 10:02:14,649 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_product56.cil.c[8146,8159] [2021-12-16 10:02:14,728 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 10:02:14,739 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 10:02:14,779 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_product56.cil.c[8146,8159] [2021-12-16 10:02:14,803 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 10:02:14,831 INFO L208 MainTranslator]: Completed translation [2021-12-16 10:02:14,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:02:14 WrapperNode [2021-12-16 10:02:14,832 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 10:02:14,833 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 10:02:14,834 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 10:02:14,834 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 10:02:14,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:02:14" (1/1) ... [2021-12-16 10:02:14,868 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:02:14" (1/1) ... [2021-12-16 10:02:14,929 INFO L137 Inliner]: procedures = 60, calls = 164, calls flagged for inlining = 61, calls inlined = 147, statements flattened = 1051 [2021-12-16 10:02:14,930 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 10:02:14,930 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 10:02:14,931 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 10:02:14,931 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 10:02:14,938 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:02:14" (1/1) ... [2021-12-16 10:02:14,938 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:02:14" (1/1) ... [2021-12-16 10:02:14,945 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:02:14" (1/1) ... [2021-12-16 10:02:14,945 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:02:14" (1/1) ... [2021-12-16 10:02:14,962 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:02:14" (1/1) ... [2021-12-16 10:02:14,982 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:02:14" (1/1) ... [2021-12-16 10:02:14,995 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:02:14" (1/1) ... [2021-12-16 10:02:14,999 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 10:02:14,999 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 10:02:14,999 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 10:02:15,000 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 10:02:15,001 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:02:14" (1/1) ... [2021-12-16 10:02:15,009 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:02:15,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 10:02:15,035 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-16 10:02:15,061 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-16 10:02:15,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 10:02:15,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 10:02:15,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 10:02:15,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 10:02:15,184 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 10:02:15,188 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 10:02:15,648 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 10:02:15,661 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 10:02:15,663 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-16 10:02:15,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 10:02:15 BoogieIcfgContainer [2021-12-16 10:02:15,666 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 10:02:15,667 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-16 10:02:15,667 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-16 10:02:15,670 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-16 10:02:15,671 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-16 10:02:15,671 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.12 10:02:14" (1/3) ... [2021-12-16 10:02:15,672 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5a828e52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.12 10:02:15, skipping insertion in model container [2021-12-16 10:02:15,672 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-16 10:02:15,672 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:02:14" (2/3) ... [2021-12-16 10:02:15,673 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5a828e52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.12 10:02:15, skipping insertion in model container [2021-12-16 10:02:15,673 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-16 10:02:15,673 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 10:02:15" (3/3) ... [2021-12-16 10:02:15,674 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product56.cil.c [2021-12-16 10:02:15,708 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-16 10:02:15,708 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-16 10:02:15,708 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-16 10:02:15,708 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-16 10:02:15,708 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-16 10:02:15,708 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-16 10:02:15,708 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-16 10:02:15,709 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-16 10:02:15,729 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 285 states, 284 states have (on average 1.3661971830985915) internal successors, (388), 284 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 10:02:15,758 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 187 [2021-12-16 10:02:15,758 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 10:02:15,759 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 10:02:15,765 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 10:02:15,766 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] [2021-12-16 10:02:15,766 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-16 10:02:15,767 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 285 states, 284 states have (on average 1.3661971830985915) internal successors, (388), 284 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 10:02:15,780 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 187 [2021-12-16 10:02:15,781 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 10:02:15,781 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 10:02:15,782 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 10:02:15,782 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] [2021-12-16 10:02:15,786 INFO L791 eck$LassoCheckResult]: Stem: 261#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(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 176#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret54#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 79#L514true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 156#L507true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 245#L522true main_#t~ret54#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret54#1;havoc main_#t~ret54#1; 198#L1034true assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 16#L1010true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 138#L542true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_#t~nondet26#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 191#L430-2true [2021-12-16 10:02:15,786 INFO L793 eck$LassoCheckResult]: Loop: 191#L430-2true assume !false; 273#L431true assume test_~splverifierCounter~0#1 < 4; 230#L432true test_~tmp~5#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 242#L440true assume !(0 != test_~tmp~5#1); 240#L440-2true test_~tmp___0~2#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 92#L450true assume !(0 != test_~tmp___0~2#1); 19#L450-2true test_~tmp___2~0#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 56#L460true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 114#L415true assume { :end_inline_startSystem } true; 283#L468-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret28#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; 136#L317true __utac_acc__Specification5_spec__2_#t~ret28#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret28#1;havoc __utac_acc__Specification5_spec__2_#t~ret28#1; 179#L552true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 3#L180true assume !(0 != ~pumpRunning~0); 9#L180-2true assume !(0 != ~systemActive~0); 243#L187-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret29#1, __utac_acc__Specification5_spec__3_#t~ret30#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~6#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 254#L133true __utac_acc__Specification5_spec__3_#t~ret29#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6#1 := __utac_acc__Specification5_spec__3_#t~ret29#1;havoc __utac_acc__Specification5_spec__3_#t~ret29#1; 203#L563true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6#1); 144#L563-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 72#L197true assume { :end_inline_timeShift } true; 191#L430-2true [2021-12-16 10:02:15,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 10:02:15,797 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2021-12-16 10:02:15,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 10:02:15,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209342952] [2021-12-16 10:02:15,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 10:02:15,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 10:02:15,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:02:15,927 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 10:02:15,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:02:15,978 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 10:02:15,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 10:02:15,981 INFO L85 PathProgramCache]: Analyzing trace with hash -936129685, now seen corresponding path program 1 times [2021-12-16 10:02:15,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 10:02:15,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560640840] [2021-12-16 10:02:15,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 10:02:15,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 10:02:15,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 10:02:16,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 10:02:16,037 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 10:02:16,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560640840] [2021-12-16 10:02:16,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560640840] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 10:02:16,038 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 10:02:16,038 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 10:02:16,039 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279466136] [2021-12-16 10:02:16,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 10:02:16,043 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-16 10:02:16,044 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 10:02:16,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 10:02:16,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 10:02:16,075 INFO L87 Difference]: Start difference. First operand has 285 states, 284 states have (on average 1.3661971830985915) internal successors, (388), 284 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 10:02:16,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 10:02:16,165 INFO L93 Difference]: Finished difference Result 554 states and 742 transitions. [2021-12-16 10:02:16,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 10:02:16,171 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 554 states and 742 transitions. [2021-12-16 10:02:16,180 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 364 [2021-12-16 10:02:16,193 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 554 states to 534 states and 721 transitions. [2021-12-16 10:02:16,196 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 534 [2021-12-16 10:02:16,198 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 534 [2021-12-16 10:02:16,200 INFO L73 IsDeterministic]: Start isDeterministic. Operand 534 states and 721 transitions. [2021-12-16 10:02:16,205 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 10:02:16,207 INFO L681 BuchiCegarLoop]: Abstraction has 534 states and 721 transitions. [2021-12-16 10:02:16,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states and 721 transitions. [2021-12-16 10:02:16,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 531. [2021-12-16 10:02:16,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 531 states have (on average 1.3502824858757063) internal successors, (717), 530 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 10:02:16,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 717 transitions. [2021-12-16 10:02:16,267 INFO L704 BuchiCegarLoop]: Abstraction has 531 states and 717 transitions. [2021-12-16 10:02:16,268 INFO L587 BuchiCegarLoop]: Abstraction has 531 states and 717 transitions. [2021-12-16 10:02:16,268 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-16 10:02:16,268 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 531 states and 717 transitions. [2021-12-16 10:02:16,271 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 361 [2021-12-16 10:02:16,273 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 10:02:16,274 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 10:02:16,274 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 10:02:16,274 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] [2021-12-16 10:02:16,275 INFO L791 eck$LassoCheckResult]: Stem: 1129#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(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 1082#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret54#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 986#L514 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 987#L507 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 1065#L522 main_#t~ret54#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret54#1;havoc main_#t~ret54#1; 1097#L1034 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 874#L1010 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 875#L542 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_#t~nondet26#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1051#L430-2 [2021-12-16 10:02:16,275 INFO L793 eck$LassoCheckResult]: Loop: 1051#L430-2 assume !false; 1133#L431 assume test_~splverifierCounter~0#1 < 4; 1115#L432 test_~tmp~5#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 1116#L440 assume !(0 != test_~tmp~5#1); 1120#L440-2 test_~tmp___0~2#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 1004#L450 assume !(0 != test_~tmp___0~2#1); 873#L450-2 test_~tmp___2~0#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 880#L460 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 948#L415 assume { :end_inline_startSystem } true; 1026#L468-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret28#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; 1047#L317 __utac_acc__Specification5_spec__2_#t~ret28#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret28#1;havoc __utac_acc__Specification5_spec__2_#t~ret28#1; 1048#L552 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 848#L180 assume !(0 != ~pumpRunning~0); 849#L180-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 862#L264 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret12#1, isMethaneAlarm_~retValue_acc~4#1;havoc isMethaneAlarm_~retValue_acc~4#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 1099#L101 isMethaneAlarm_#t~ret12#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~4#1 := isMethaneAlarm_#t~ret12#1;havoc isMethaneAlarm_#t~ret12#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~4#1; 1053#L308 processEnvironment_#t~ret11#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~2#1 := processEnvironment_#t~ret11#1;havoc processEnvironment_#t~ret11#1; 1054#L268 assume 0 != processEnvironment_~tmp~2#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 906#L298-1 assume { :end_inline_deactivatePump } true; 861#L264-1 assume { :end_inline_processEnvironment } true; 1114#L187-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret29#1, __utac_acc__Specification5_spec__3_#t~ret30#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~6#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 1121#L133 __utac_acc__Specification5_spec__3_#t~ret29#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6#1 := __utac_acc__Specification5_spec__3_#t~ret29#1;havoc __utac_acc__Specification5_spec__3_#t~ret29#1; 1148#L563 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6#1); 1145#L563-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1144#L197 assume { :end_inline_timeShift } true; 1051#L430-2 [2021-12-16 10:02:16,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 10:02:16,276 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2021-12-16 10:02:16,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 10:02:16,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074144435] [2021-12-16 10:02:16,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 10:02:16,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 10:02:16,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:02:16,291 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 10:02:16,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:02:16,311 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 10:02:16,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 10:02:16,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1879030444, now seen corresponding path program 1 times [2021-12-16 10:02:16,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 10:02:16,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064125740] [2021-12-16 10:02:16,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 10:02:16,317 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 10:02:16,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 10:02:16,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 10:02:16,346 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 10:02:16,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064125740] [2021-12-16 10:02:16,347 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064125740] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 10:02:16,347 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 10:02:16,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 10:02:16,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050601768] [2021-12-16 10:02:16,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 10:02:16,349 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-16 10:02:16,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 10:02:16,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 10:02:16,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 10:02:16,351 INFO L87 Difference]: Start difference. First operand 531 states and 717 transitions. cyclomatic complexity: 189 Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 10:02:16,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 10:02:16,453 INFO L93 Difference]: Finished difference Result 571 states and 732 transitions. [2021-12-16 10:02:16,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 10:02:16,454 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 571 states and 732 transitions. [2021-12-16 10:02:16,458 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 399 [2021-12-16 10:02:16,461 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 571 states to 571 states and 732 transitions. [2021-12-16 10:02:16,461 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 571 [2021-12-16 10:02:16,462 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 571 [2021-12-16 10:02:16,473 INFO L73 IsDeterministic]: Start isDeterministic. Operand 571 states and 732 transitions. [2021-12-16 10:02:16,475 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 10:02:16,475 INFO L681 BuchiCegarLoop]: Abstraction has 571 states and 732 transitions. [2021-12-16 10:02:16,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states and 732 transitions. [2021-12-16 10:02:16,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 571. [2021-12-16 10:02:16,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 571 states have (on average 1.2819614711033276) internal successors, (732), 570 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 10:02:16,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 732 transitions. [2021-12-16 10:02:16,487 INFO L704 BuchiCegarLoop]: Abstraction has 571 states and 732 transitions. [2021-12-16 10:02:16,487 INFO L587 BuchiCegarLoop]: Abstraction has 571 states and 732 transitions. [2021-12-16 10:02:16,487 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-16 10:02:16,487 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 571 states and 732 transitions. [2021-12-16 10:02:16,490 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 399 [2021-12-16 10:02:16,490 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 10:02:16,490 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 10:02:16,491 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 10:02:16,491 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, 1, 1, 1] [2021-12-16 10:02:16,492 INFO L791 eck$LassoCheckResult]: Stem: 2205#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(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 2156#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret54#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 2061#L514 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2062#L507 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 2135#L522 main_#t~ret54#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret54#1;havoc main_#t~ret54#1; 2168#L1034 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 1978#L1010 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1979#L542 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_#t~nondet26#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2053#L430-2 [2021-12-16 10:02:16,492 INFO L793 eck$LassoCheckResult]: Loop: 2053#L430-2 assume !false; 2164#L431 assume test_~splverifierCounter~0#1 < 4; 2191#L432 test_~tmp~5#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 2192#L440 assume !(0 != test_~tmp~5#1); 2198#L440-2 test_~tmp___0~2#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 2074#L450 assume !(0 != test_~tmp___0~2#1); 1975#L450-2 test_~tmp___2~0#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 1984#L460 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 2032#L415 assume { :end_inline_startSystem } true; 2092#L468-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret28#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; 2115#L317 __utac_acc__Specification5_spec__2_#t~ret28#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret28#1;havoc __utac_acc__Specification5_spec__2_#t~ret28#1; 2116#L552 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1956#L180 assume !(0 != ~pumpRunning~0); 1957#L180-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 1966#L264 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret10#1, processEnvironment__wrappee__lowWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~1#1; 2323#L238-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 2322#L212-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~3#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 2321#L141-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 2319#L146-3 isHighWaterLevel_#t~ret21#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret21#1;havoc isHighWaterLevel_#t~ret21#1; 2317#L366-9 assume 0 != isHighWaterLevel_~tmp~3#1;isHighWaterLevel_~tmp___0~0#1 := 0; 2315#L366-11 isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; 2313#L372-3 processEnvironment__wrappee__highWaterSensor_#t~ret9#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret9#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1; 2193#L216-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2194#L204-6 assume { :end_inline_processEnvironment__wrappee__base } true; 2380#L212-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2157#L238-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 1965#L264-1 assume { :end_inline_processEnvironment } true; 2190#L187-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret29#1, __utac_acc__Specification5_spec__3_#t~ret30#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~6#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 2377#L133 __utac_acc__Specification5_spec__3_#t~ret29#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6#1 := __utac_acc__Specification5_spec__3_#t~ret29#1;havoc __utac_acc__Specification5_spec__3_#t~ret29#1; 2375#L563 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6#1); 2124#L563-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 2052#L197 assume { :end_inline_timeShift } true; 2053#L430-2 [2021-12-16 10:02:16,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 10:02:16,493 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2021-12-16 10:02:16,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 10:02:16,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919041883] [2021-12-16 10:02:16,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 10:02:16,494 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 10:02:16,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:02:16,505 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 10:02:16,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:02:16,518 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 10:02:16,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 10:02:16,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1169287998, now seen corresponding path program 1 times [2021-12-16 10:02:16,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 10:02:16,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319318907] [2021-12-16 10:02:16,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 10:02:16,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 10:02:16,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 10:02:16,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 10:02:16,557 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 10:02:16,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319318907] [2021-12-16 10:02:16,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319318907] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 10:02:16,558 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 10:02:16,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 10:02:16,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389979857] [2021-12-16 10:02:16,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 10:02:16,559 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-16 10:02:16,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 10:02:16,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 10:02:16,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 10:02:16,560 INFO L87 Difference]: Start difference. First operand 571 states and 732 transitions. cyclomatic complexity: 164 Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 10:02:16,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 10:02:16,713 INFO L93 Difference]: Finished difference Result 1681 states and 2104 transitions. [2021-12-16 10:02:16,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 10:02:16,716 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1681 states and 2104 transitions. [2021-12-16 10:02:16,726 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 1083 [2021-12-16 10:02:16,734 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1681 states to 1681 states and 2104 transitions. [2021-12-16 10:02:16,734 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1681 [2021-12-16 10:02:16,735 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1681 [2021-12-16 10:02:16,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1681 states and 2104 transitions. [2021-12-16 10:02:16,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 10:02:16,737 INFO L681 BuchiCegarLoop]: Abstraction has 1681 states and 2104 transitions. [2021-12-16 10:02:16,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1681 states and 2104 transitions. [2021-12-16 10:02:16,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1681 to 1130. [2021-12-16 10:02:16,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1130 states, 1130 states have (on average 1.2548672566371681) internal successors, (1418), 1129 states have internal predecessors, (1418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 10:02:16,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1130 states to 1130 states and 1418 transitions. [2021-12-16 10:02:16,759 INFO L704 BuchiCegarLoop]: Abstraction has 1130 states and 1418 transitions. [2021-12-16 10:02:16,759 INFO L587 BuchiCegarLoop]: Abstraction has 1130 states and 1418 transitions. [2021-12-16 10:02:16,759 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-16 10:02:16,759 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1130 states and 1418 transitions. [2021-12-16 10:02:16,772 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 794 [2021-12-16 10:02:16,772 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 10:02:16,773 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 10:02:16,774 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 10:02:16,774 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, 1, 1, 1, 1, 1] [2021-12-16 10:02:16,774 INFO L791 eck$LassoCheckResult]: Stem: 4495#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(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 4434#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret54#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 4334#L514 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 4335#L507 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 4408#L522 main_#t~ret54#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret54#1;havoc main_#t~ret54#1; 4449#L1034 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 4246#L1010 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 4247#L542 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_#t~nondet26#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 4325#L430-2 [2021-12-16 10:02:16,774 INFO L793 eck$LassoCheckResult]: Loop: 4325#L430-2 assume !false; 4444#L431 assume test_~splverifierCounter~0#1 < 4; 4475#L432 test_~tmp~5#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 4476#L440 assume !(0 != test_~tmp~5#1); 4484#L440-2 test_~tmp___0~2#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 4347#L450 assume !(0 != test_~tmp___0~2#1); 4243#L450-2 test_~tmp___2~0#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 4253#L460 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 4304#L415 assume { :end_inline_startSystem } true; 4368#L468-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret28#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; 4390#L317 __utac_acc__Specification5_spec__2_#t~ret28#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret28#1;havoc __utac_acc__Specification5_spec__2_#t~ret28#1; 4391#L552 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 4224#L180 assume !(0 != ~pumpRunning~0); 4225#L180-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 4234#L264 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret10#1, processEnvironment__wrappee__lowWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~1#1; 4450#L238-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 4376#L212-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~3#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 4377#L141-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 4326#L146-3 isHighWaterLevel_#t~ret21#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret21#1;havoc isHighWaterLevel_#t~ret21#1; 4327#L366-9 assume 0 != isHighWaterLevel_~tmp~3#1;isHighWaterLevel_~tmp___0~0#1 := 0; 4423#L366-11 isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; 4261#L372-3 processEnvironment__wrappee__highWaterSensor_#t~ret9#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret9#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1; 4262#L216-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 4374#L204-6 assume { :end_inline_processEnvironment__wrappee__base } true; 4369#L212-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 4370#L238-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 4233#L264-1 assume { :end_inline_processEnvironment } true; 4474#L187-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret29#1, __utac_acc__Specification5_spec__3_#t~ret30#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~6#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 4485#L133 __utac_acc__Specification5_spec__3_#t~ret29#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6#1 := __utac_acc__Specification5_spec__3_#t~ret29#1;havoc __utac_acc__Specification5_spec__3_#t~ret29#1; 4451#L563 assume 2 != __utac_acc__Specification5_spec__3_~tmp~6#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; 4394#L317-1 __utac_acc__Specification5_spec__3_#t~ret30#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~3#1 := __utac_acc__Specification5_spec__3_#t~ret30#1;havoc __utac_acc__Specification5_spec__3_#t~ret30#1; 4273#L567 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~3#1); 4274#L563-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 4324#L197 assume { :end_inline_timeShift } true; 4325#L430-2 [2021-12-16 10:02:16,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 10:02:16,775 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2021-12-16 10:02:16,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 10:02:16,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298176401] [2021-12-16 10:02:16,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 10:02:16,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 10:02:16,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:02:16,806 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 10:02:16,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:02:16,822 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 10:02:16,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 10:02:16,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1576573213, now seen corresponding path program 1 times [2021-12-16 10:02:16,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 10:02:16,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231151777] [2021-12-16 10:02:16,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 10:02:16,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 10:02:16,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:02:16,835 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 10:02:16,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:02:16,843 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 10:02:16,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 10:02:16,844 INFO L85 PathProgramCache]: Analyzing trace with hash -657243706, now seen corresponding path program 1 times [2021-12-16 10:02:16,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 10:02:16,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993954422] [2021-12-16 10:02:16,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 10:02:16,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 10:02:16,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:02:16,858 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 10:02:16,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:02:16,890 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 10:02:19,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.12 10:02:19 BoogieIcfgContainer [2021-12-16 10:02:19,716 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-16 10:02:19,717 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-16 10:02:19,717 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-16 10:02:19,717 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-16 10:02:19,717 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 10:02:15" (3/4) ... [2021-12-16 10:02:19,719 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-16 10:02:19,770 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-16 10:02:19,770 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-16 10:02:19,771 INFO L158 Benchmark]: Toolchain (without parser) took 5355.25ms. Allocated memory was 92.3MB in the beginning and 163.6MB in the end (delta: 71.3MB). Free memory was 59.9MB in the beginning and 84.9MB in the end (delta: -25.0MB). Peak memory consumption was 44.5MB. Max. memory is 16.1GB. [2021-12-16 10:02:19,771 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 92.3MB. Free memory is still 48.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 10:02:19,771 INFO L158 Benchmark]: CACSL2BoogieTranslator took 416.43ms. Allocated memory is still 92.3MB. Free memory was 59.7MB in the beginning and 59.4MB in the end (delta: 318.0kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-16 10:02:19,772 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.43ms. Allocated memory is still 92.3MB. Free memory was 59.4MB in the beginning and 54.7MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-16 10:02:19,772 INFO L158 Benchmark]: Boogie Preprocessor took 68.15ms. Allocated memory is still 92.3MB. Free memory was 54.7MB in the beginning and 51.3MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-16 10:02:19,773 INFO L158 Benchmark]: RCFGBuilder took 667.00ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 51.3MB in the beginning and 62.9MB in the end (delta: -11.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-16 10:02:19,773 INFO L158 Benchmark]: BuchiAutomizer took 4049.09ms. Allocated memory was 111.1MB in the beginning and 163.6MB in the end (delta: 52.4MB). Free memory was 62.9MB in the beginning and 88.1MB in the end (delta: -25.1MB). Peak memory consumption was 50.5MB. Max. memory is 16.1GB. [2021-12-16 10:02:19,774 INFO L158 Benchmark]: Witness Printer took 53.30ms. Allocated memory is still 163.6MB. Free memory was 88.1MB in the beginning and 84.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-16 10:02:19,776 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 92.3MB. Free memory is still 48.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 416.43ms. Allocated memory is still 92.3MB. Free memory was 59.7MB in the beginning and 59.4MB in the end (delta: 318.0kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 96.43ms. Allocated memory is still 92.3MB. Free memory was 59.4MB in the beginning and 54.7MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.15ms. Allocated memory is still 92.3MB. Free memory was 54.7MB in the beginning and 51.3MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 667.00ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 51.3MB in the beginning and 62.9MB in the end (delta: -11.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 4049.09ms. Allocated memory was 111.1MB in the beginning and 163.6MB in the end (delta: 52.4MB). Free memory was 62.9MB in the beginning and 88.1MB in the end (delta: -25.1MB). Peak memory consumption was 50.5MB. Max. memory is 16.1GB. * Witness Printer took 53.30ms. Allocated memory is still 163.6MB. Free memory was 88.1MB in the beginning and 84.9MB in the end (delta: 3.1MB). 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 5 locations. The remainder module has 1130 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.9s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.3s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 554 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 1130 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1556 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1556 mSDsluCounter, 2643 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1499 mSDsCounter, 82 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 172 IncrementalHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 82 mSolverCounterUnsat, 1144 mSDtfsCounter, 172 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc0 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: 430]: 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@740cd6b1=0, tmp___0=0, NULL=0, head=0, pumpRunning=0, tmp___0=0, retValue_acc=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@17bf5055=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5b621906=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72e5507e=0, retValue_acc=1, methaneLevelCritical=0, retValue_acc=1, retValue_acc=0, \result=1, \result=1, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7430a36f=0, tmp=1, tmp=1, tmp___2=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4bc920b=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4c828b43=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, \result=0, tmp___0=0, tmp=0, head=0, \result=1, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4c46cfa7=0, NULL=0, retValue_acc=0, waterLevel=1, systemActive=1, retValue_acc=1, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@743c9d0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@9ca4625=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@380d59bb=0, tmp=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4917f5f7=29, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 430]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L58] int waterLevel = 1; [L59] int methaneLevelCritical = 0; [L168] int pumpRunning = 0; [L169] int systemActive = 1; [L536] int switchedOnBeforeTS ; [L754] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L951] int cleanupTimeShifts = 4; [L1025] int retValue_acc ; [L1026] int tmp ; [L1030] FCALL select_helpers() [L1031] FCALL select_features() [L1032] CALL, EXPR valid_product() [L518] int retValue_acc ; [L521] retValue_acc = 1 [L522] return (retValue_acc); [L1032] RET, EXPR valid_product() [L1032] tmp = valid_product() [L1034] COND TRUE \read(tmp) [L1036] FCALL setup() [L1037] CALL runTest() [L1018] CALL __utac_acc__Specification5_spec__1() [L541] switchedOnBeforeTS = 0 [L1018] RET __utac_acc__Specification5_spec__1() [L1019] CALL test() [L421] int splverifierCounter ; [L422] int tmp ; [L423] int tmp___0 ; [L424] int tmp___1 ; [L425] int tmp___2 ; [L428] splverifierCounter = 0 Loop: [L430] COND TRUE 1 [L432] COND TRUE splverifierCounter < 4 [L438] tmp = __VERIFIER_nondet_int() [L440] COND FALSE !(\read(tmp)) [L448] tmp___0 = __VERIFIER_nondet_int() [L450] COND FALSE !(\read(tmp___0)) [L458] tmp___2 = __VERIFIER_nondet_int() [L460] COND TRUE \read(tmp___2) [L462] CALL startSystem() [L414] systemActive = 1 [L462] RET startSystem() [L477] CALL timeShift() [L178] CALL __utac_acc__Specification5_spec__2() [L550] CALL, EXPR isPumpRunning() [L313] int retValue_acc ; [L316] retValue_acc = pumpRunning [L317] return (retValue_acc); [L550] RET, EXPR isPumpRunning() [L550] switchedOnBeforeTS = isPumpRunning() [L178] RET __utac_acc__Specification5_spec__2() [L180] COND FALSE !(\read(pumpRunning)) [L187] COND TRUE \read(systemActive) [L189] CALL processEnvironment() [L261] int tmp ; [L264] COND FALSE !(\read(pumpRunning)) [L279] CALL processEnvironment__wrappee__lowWaterSensor() [L235] int tmp ; [L238] COND FALSE !(\read(pumpRunning)) [L253] CALL processEnvironment__wrappee__highWaterSensor() [L209] int tmp ; [L212] COND TRUE ! pumpRunning [L214] CALL, EXPR isHighWaterLevel() [L358] int retValue_acc ; [L359] int tmp ; [L360] int tmp___0 ; [L364] CALL, EXPR isHighWaterSensorDry() [L138] int retValue_acc ; [L141] COND TRUE waterLevel < 2 [L142] retValue_acc = 1 [L143] return (retValue_acc); [L364] RET, EXPR isHighWaterSensorDry() [L364] tmp = isHighWaterSensorDry() [L366] COND TRUE \read(tmp) [L367] tmp___0 = 0 [L371] retValue_acc = tmp___0 [L372] return (retValue_acc); [L214] RET, EXPR isHighWaterLevel() [L214] tmp = isHighWaterLevel() [L216] COND FALSE !(\read(tmp)) [L222] FCALL processEnvironment__wrappee__base() [L253] RET processEnvironment__wrappee__highWaterSensor() [L279] RET processEnvironment__wrappee__lowWaterSensor() [L189] RET processEnvironment() [L195] CALL __utac_acc__Specification5_spec__3() [L556] int tmp ; [L557] int tmp___0 ; [L561] CALL, EXPR getWaterLevel() [L129] int retValue_acc ; [L132] retValue_acc = waterLevel [L133] return (retValue_acc); [L561] RET, EXPR getWaterLevel() [L561] tmp = getWaterLevel() [L563] COND TRUE tmp != 2 [L565] CALL, EXPR isPumpRunning() [L313] int retValue_acc ; [L316] retValue_acc = pumpRunning [L317] return (retValue_acc); [L565] RET, EXPR isPumpRunning() [L565] tmp___0 = isPumpRunning() [L567] COND FALSE !(\read(tmp___0)) [L195] RET __utac_acc__Specification5_spec__3() [L477] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-16 10:02:19,819 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with 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)