./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product43.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e19ca921 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_product43.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 e5a4c274bc0fec0eeea8ea2f72c4bc5bbc7aef2fd24f2cf907e22c2c7f3759d4 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 20:26:37,727 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 20:26:37,729 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 20:26:37,801 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 20:26:37,802 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 20:26:37,806 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 20:26:37,807 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 20:26:37,812 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 20:26:37,814 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 20:26:37,817 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 20:26:37,817 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 20:26:37,819 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 20:26:37,819 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 20:26:37,824 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 20:26:37,826 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 20:26:37,827 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 20:26:37,831 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 20:26:37,831 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 20:26:37,833 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 20:26:37,835 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 20:26:37,839 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 20:26:37,840 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 20:26:37,841 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 20:26:37,841 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 20:26:37,844 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 20:26:37,846 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 20:26:37,846 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 20:26:37,847 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 20:26:37,848 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 20:26:37,848 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 20:26:37,849 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 20:26:37,849 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 20:26:37,850 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 20:26:37,851 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 20:26:37,852 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 20:26:37,853 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 20:26:37,854 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 20:26:37,854 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 20:26:37,854 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 20:26:37,855 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 20:26:37,855 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 20:26:37,856 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-22 20:26:37,883 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 20:26:37,883 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 20:26:37,884 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 20:26:37,884 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 20:26:37,885 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 20:26:37,885 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 20:26:37,885 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 20:26:37,885 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-22 20:26:37,886 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-22 20:26:37,886 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-22 20:26:37,887 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-22 20:26:37,887 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-22 20:26:37,887 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-22 20:26:37,887 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 20:26:37,887 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-22 20:26:37,888 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-22 20:26:37,888 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 20:26:37,888 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-22 20:26:37,888 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 20:26:37,889 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-22 20:26:37,889 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-22 20:26:37,889 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-22 20:26:37,889 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-22 20:26:37,889 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 20:26:37,890 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-22 20:26:37,890 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 20:26:37,890 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-22 20:26:37,890 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 20:26:37,890 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 20:26:37,891 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 20:26:37,891 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 20:26:37,891 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 20:26:37,892 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-22 20:26:37,892 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e5a4c274bc0fec0eeea8ea2f72c4bc5bbc7aef2fd24f2cf907e22c2c7f3759d4 [2021-12-22 20:26:38,108 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 20:26:38,131 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 20:26:38,134 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 20:26:38,135 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 20:26:38,136 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 20:26:38,137 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product43.cil.c [2021-12-22 20:26:38,194 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/528b0a637/5a69554021404e8d9fe27acad78bd1ee/FLAG45110f9c2 [2021-12-22 20:26:38,658 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 20:26:38,659 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product43.cil.c [2021-12-22 20:26:38,680 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/528b0a637/5a69554021404e8d9fe27acad78bd1ee/FLAG45110f9c2 [2021-12-22 20:26:38,996 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/528b0a637/5a69554021404e8d9fe27acad78bd1ee [2021-12-22 20:26:38,998 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 20:26:38,999 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 20:26:39,000 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 20:26:39,000 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 20:26:39,006 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 20:26:39,007 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:26:38" (1/1) ... [2021-12-22 20:26:39,008 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61e54180 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:26:39, skipping insertion in model container [2021-12-22 20:26:39,008 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:26:38" (1/1) ... [2021-12-22 20:26:39,012 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 20:26:39,051 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 20:26:39,285 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_product43.cil.c[18537,18550] [2021-12-22 20:26:39,286 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 20:26:39,298 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 20:26:39,384 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_product43.cil.c[18537,18550] [2021-12-22 20:26:39,390 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 20:26:39,413 INFO L208 MainTranslator]: Completed translation [2021-12-22 20:26:39,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:26:39 WrapperNode [2021-12-22 20:26:39,414 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 20:26:39,416 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 20:26:39,416 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 20:26:39,416 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 20:26:39,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:26:39" (1/1) ... [2021-12-22 20:26:39,445 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:26:39" (1/1) ... [2021-12-22 20:26:39,479 INFO L137 Inliner]: procedures = 56, calls = 156, calls flagged for inlining = 53, calls inlined = 65, statements flattened = 499 [2021-12-22 20:26:39,480 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 20:26:39,481 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 20:26:39,481 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 20:26:39,481 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 20:26:39,488 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:26:39" (1/1) ... [2021-12-22 20:26:39,488 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:26:39" (1/1) ... [2021-12-22 20:26:39,491 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:26:39" (1/1) ... [2021-12-22 20:26:39,491 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:26:39" (1/1) ... [2021-12-22 20:26:39,498 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:26:39" (1/1) ... [2021-12-22 20:26:39,502 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:26:39" (1/1) ... [2021-12-22 20:26:39,504 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:26:39" (1/1) ... [2021-12-22 20:26:39,507 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 20:26:39,508 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 20:26:39,508 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 20:26:39,508 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 20:26:39,509 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:26:39" (1/1) ... [2021-12-22 20:26:39,515 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:26:39,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:26:39,543 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) [2021-12-22 20:26:39,550 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 [2021-12-22 20:26:39,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 20:26:39,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 20:26:39,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 20:26:39,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 20:26:39,675 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 20:26:39,676 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 20:26:40,086 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 20:26:40,099 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 20:26:40,101 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-22 20:26:40,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:26:40 BoogieIcfgContainer [2021-12-22 20:26:40,105 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 20:26:40,106 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-22 20:26:40,106 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-22 20:26:40,109 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-22 20:26:40,110 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 20:26:40,110 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.12 08:26:38" (1/3) ... [2021-12-22 20:26:40,111 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6d9595df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.12 08:26:40, skipping insertion in model container [2021-12-22 20:26:40,111 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 20:26:40,111 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:26:39" (2/3) ... [2021-12-22 20:26:40,112 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6d9595df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.12 08:26:40, skipping insertion in model container [2021-12-22 20:26:40,112 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 20:26:40,112 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:26:40" (3/3) ... [2021-12-22 20:26:40,113 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product43.cil.c [2021-12-22 20:26:40,142 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-22 20:26:40,143 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-22 20:26:40,143 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-22 20:26:40,143 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-22 20:26:40,143 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-22 20:26:40,143 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-22 20:26:40,143 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-22 20:26:40,143 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-22 20:26:40,166 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 131 states, 130 states have (on average 1.3615384615384616) internal successors, (177), 130 states have internal predecessors, (177), 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) [2021-12-22 20:26:40,187 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 84 [2021-12-22 20:26:40,187 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 20:26:40,188 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 20:26:40,193 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:26:40,194 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:26:40,194 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-22 20:26:40,195 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 131 states, 130 states have (on average 1.3615384615384616) internal successors, (177), 130 states have internal predecessors, (177), 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) [2021-12-22 20:26:40,202 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 84 [2021-12-22 20:26:40,207 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 20:26:40,207 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 20:26:40,208 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:26:40,208 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:26:40,212 INFO L791 eck$LassoCheckResult]: Stem: 120#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0; 34#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 127#L954true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 40#L947true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 25#L962true main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 29#L508true assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 57#L479true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 7#L889true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 16#L533-2true [2021-12-22 20:26:40,213 INFO L793 eck$LassoCheckResult]: Loop: 16#L533-2true assume !false; 81#L534true assume test_~splverifierCounter~0#1 < 4; 79#L535true test_~tmp~4#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 38#L543true assume !(0 != test_~tmp~4#1); 125#L543-2true test_~tmp___0~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 68#L553true assume !(0 != test_~tmp___0~0#1); 62#L553-2true test_~tmp___2~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 54#L563true assume 0 != test_~tmp___2~0#1; 70#L569-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret49#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; 56#L712true __utac_acc__Specification5_spec__2_#t~ret49#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret49#1;havoc __utac_acc__Specification5_spec__2_#t~ret49#1; 36#L899true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 72#L609true assume !(0 != ~pumpRunning~0); 132#L609-2true assume !(0 != ~systemActive~0); 90#L616-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~8#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~8#1;havoc getWaterLevel_~retValue_acc~8#1;getWaterLevel_~retValue_acc~8#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~8#1; 21#L863true __utac_acc__Specification5_spec__3_#t~ret50#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~8#1 := __utac_acc__Specification5_spec__3_#t~ret50#1;havoc __utac_acc__Specification5_spec__3_#t~ret50#1; 13#L910true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8#1); 11#L910-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 61#L626true assume { :end_inline_timeShift } true; 16#L533-2true [2021-12-22 20:26:40,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:26:40,222 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2021-12-22 20:26:40,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:26:40,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558538065] [2021-12-22 20:26:40,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:26:40,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:26:40,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:26:40,322 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:26:40,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:26:40,386 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:26:40,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:26:40,389 INFO L85 PathProgramCache]: Analyzing trace with hash -652688724, now seen corresponding path program 1 times [2021-12-22 20:26:40,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:26:40,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511281839] [2021-12-22 20:26:40,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:26:40,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:26:40,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:26:40,411 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:26:40,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:26:40,425 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:26:40,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:26:40,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1992041131, now seen corresponding path program 1 times [2021-12-22 20:26:40,427 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:26:40,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63945182] [2021-12-22 20:26:40,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:26:40,428 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:26:40,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 20:26:40,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 20:26:40,559 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 20:26:40,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63945182] [2021-12-22 20:26:40,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63945182] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 20:26:40,561 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 20:26:40,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 20:26:40,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949163582] [2021-12-22 20:26:40,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 20:26:40,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 20:26:40,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 20:26:40,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-22 20:26:40,755 INFO L87 Difference]: Start difference. First operand has 131 states, 130 states have (on average 1.3615384615384616) internal successors, (177), 130 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 20:26:40,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 20:26:40,900 INFO L93 Difference]: Finished difference Result 321 states and 414 transitions. [2021-12-22 20:26:40,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 20:26:40,907 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 321 states and 414 transitions. [2021-12-22 20:26:40,921 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 205 [2021-12-22 20:26:40,932 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 321 states to 291 states and 384 transitions. [2021-12-22 20:26:40,934 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 291 [2021-12-22 20:26:40,937 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 291 [2021-12-22 20:26:40,938 INFO L73 IsDeterministic]: Start isDeterministic. Operand 291 states and 384 transitions. [2021-12-22 20:26:40,942 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-22 20:26:40,943 INFO L681 BuchiCegarLoop]: Abstraction has 291 states and 384 transitions. [2021-12-22 20:26:40,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states and 384 transitions. [2021-12-22 20:26:40,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 179. [2021-12-22 20:26:40,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 179 states have (on average 1.318435754189944) internal successors, (236), 178 states have internal predecessors, (236), 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) [2021-12-22 20:26:40,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 236 transitions. [2021-12-22 20:26:40,989 INFO L704 BuchiCegarLoop]: Abstraction has 179 states and 236 transitions. [2021-12-22 20:26:40,989 INFO L587 BuchiCegarLoop]: Abstraction has 179 states and 236 transitions. [2021-12-22 20:26:40,989 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-22 20:26:40,989 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 179 states and 236 transitions. [2021-12-22 20:26:40,994 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 126 [2021-12-22 20:26:40,994 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 20:26:40,994 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 20:26:40,995 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:26:40,995 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] [2021-12-22 20:26:40,996 INFO L791 eck$LassoCheckResult]: Stem: 585#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0; 520#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 521#L954 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 533#L947 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 506#L962 main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 507#L508 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 513#L479 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 476#L889 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 477#L533-2 [2021-12-22 20:26:40,996 INFO L793 eck$LassoCheckResult]: Loop: 477#L533-2 assume !false; 493#L534 assume test_~splverifierCounter~0#1 < 4; 566#L535 test_~tmp~4#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 529#L543 assume !(0 != test_~tmp~4#1); 531#L543-2 test_~tmp___0~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 558#L553 assume !(0 != test_~tmp___0~0#1); 510#L553-2 test_~tmp___2~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 549#L563 assume 0 != test_~tmp___2~0#1; 515#L569-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret49#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; 550#L712 __utac_acc__Specification5_spec__2_#t~ret49#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret49#1;havoc __utac_acc__Specification5_spec__2_#t~ret49#1; 525#L899 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 526#L609 assume !(0 != ~pumpRunning~0); 562#L609-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 522#L641 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 523#L633-1 assume { :end_inline_processEnvironment__wrappee__base } true; 505#L641-1 assume { :end_inline_processEnvironment } true; 564#L616-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~8#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~8#1;havoc getWaterLevel_~retValue_acc~8#1;getWaterLevel_~retValue_acc~8#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~8#1; 500#L863 __utac_acc__Specification5_spec__3_#t~ret50#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~8#1 := __utac_acc__Specification5_spec__3_#t~ret50#1;havoc __utac_acc__Specification5_spec__3_#t~ret50#1; 489#L910 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8#1); 485#L910-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 486#L626 assume { :end_inline_timeShift } true; 477#L533-2 [2021-12-22 20:26:40,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:26:40,997 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2021-12-22 20:26:40,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:26:40,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390434948] [2021-12-22 20:26:40,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:26:40,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:26:41,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:26:41,033 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:26:41,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:26:41,049 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:26:41,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:26:41,049 INFO L85 PathProgramCache]: Analyzing trace with hash 485803576, now seen corresponding path program 1 times [2021-12-22 20:26:41,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:26:41,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146153338] [2021-12-22 20:26:41,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:26:41,050 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:26:41,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 20:26:41,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 20:26:41,065 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 20:26:41,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146153338] [2021-12-22 20:26:41,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146153338] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 20:26:41,065 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 20:26:41,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 20:26:41,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722395900] [2021-12-22 20:26:41,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 20:26:41,066 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-22 20:26:41,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 20:26:41,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 20:26:41,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 20:26:41,067 INFO L87 Difference]: Start difference. First operand 179 states and 236 transitions. cyclomatic complexity: 60 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 20:26:41,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 20:26:41,111 INFO L93 Difference]: Finished difference Result 238 states and 302 transitions. [2021-12-22 20:26:41,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 20:26:41,112 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 238 states and 302 transitions. [2021-12-22 20:26:41,114 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 171 [2021-12-22 20:26:41,115 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 238 states to 238 states and 302 transitions. [2021-12-22 20:26:41,116 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 238 [2021-12-22 20:26:41,116 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 238 [2021-12-22 20:26:41,116 INFO L73 IsDeterministic]: Start isDeterministic. Operand 238 states and 302 transitions. [2021-12-22 20:26:41,117 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-22 20:26:41,117 INFO L681 BuchiCegarLoop]: Abstraction has 238 states and 302 transitions. [2021-12-22 20:26:41,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states and 302 transitions. [2021-12-22 20:26:41,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2021-12-22 20:26:41,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 238 states have (on average 1.26890756302521) internal successors, (302), 237 states have internal predecessors, (302), 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) [2021-12-22 20:26:41,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 302 transitions. [2021-12-22 20:26:41,125 INFO L704 BuchiCegarLoop]: Abstraction has 238 states and 302 transitions. [2021-12-22 20:26:41,125 INFO L587 BuchiCegarLoop]: Abstraction has 238 states and 302 transitions. [2021-12-22 20:26:41,125 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-22 20:26:41,125 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 238 states and 302 transitions. [2021-12-22 20:26:41,126 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 171 [2021-12-22 20:26:41,127 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 20:26:41,127 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 20:26:41,127 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:26:41,127 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] [2021-12-22 20:26:41,128 INFO L791 eck$LassoCheckResult]: Stem: 1019#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0; 945#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 946#L954 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 957#L947 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 930#L962 main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 931#L508 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 937#L479 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 899#L889 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 900#L533-2 [2021-12-22 20:26:41,128 INFO L793 eck$LassoCheckResult]: Loop: 900#L533-2 assume !false; 916#L534 assume test_~splverifierCounter~0#1 < 4; 992#L535 test_~tmp~4#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 953#L543 assume !(0 != test_~tmp~4#1); 955#L543-2 test_~tmp___0~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 985#L553 assume !(0 != test_~tmp___0~0#1); 934#L553-2 test_~tmp___2~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 974#L563 assume 0 != test_~tmp___2~0#1; 939#L569-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret49#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; 975#L712 __utac_acc__Specification5_spec__2_#t~ret49#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret49#1;havoc __utac_acc__Specification5_spec__2_#t~ret49#1; 949#L899 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 950#L609 assume !(0 != ~pumpRunning~0); 989#L609-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 947#L641 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret43#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~9#1;havoc isHighWaterSensorDry_~retValue_acc~9#1; 948#L871 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~9#1; 1000#L876 isHighWaterLevel_#t~ret43#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret43#1;havoc isHighWaterLevel_#t~ret43#1; 1001#L761 assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1003#L761-2 isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; 1014#L767 processEnvironment_#t~ret32#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~5#1 := processEnvironment_#t~ret32#1;havoc processEnvironment_#t~ret32#1; 1015#L645 assume !(0 != processEnvironment_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1021#L633 assume { :end_inline_processEnvironment__wrappee__base } true; 929#L641-1 assume { :end_inline_processEnvironment } true; 990#L616-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~8#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~8#1;havoc getWaterLevel_~retValue_acc~8#1;getWaterLevel_~retValue_acc~8#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~8#1; 923#L863 __utac_acc__Specification5_spec__3_#t~ret50#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~8#1 := __utac_acc__Specification5_spec__3_#t~ret50#1;havoc __utac_acc__Specification5_spec__3_#t~ret50#1; 910#L910 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8#1); 908#L910-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 909#L626 assume { :end_inline_timeShift } true; 900#L533-2 [2021-12-22 20:26:41,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:26:41,129 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2021-12-22 20:26:41,129 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:26:41,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774072419] [2021-12-22 20:26:41,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:26:41,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:26:41,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:26:41,159 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:26:41,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:26:41,176 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:26:41,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:26:41,180 INFO L85 PathProgramCache]: Analyzing trace with hash 927249440, now seen corresponding path program 1 times [2021-12-22 20:26:41,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:26:41,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981715430] [2021-12-22 20:26:41,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:26:41,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:26:41,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 20:26:41,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 20:26:41,233 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 20:26:41,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981715430] [2021-12-22 20:26:41,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981715430] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 20:26:41,235 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 20:26:41,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 20:26:41,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654224859] [2021-12-22 20:26:41,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 20:26:41,236 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-22 20:26:41,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 20:26:41,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 20:26:41,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 20:26:41,238 INFO L87 Difference]: Start difference. First operand 238 states and 302 transitions. cyclomatic complexity: 67 Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 20:26:41,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 20:26:41,375 INFO L93 Difference]: Finished difference Result 922 states and 1156 transitions. [2021-12-22 20:26:41,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-22 20:26:41,377 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 922 states and 1156 transitions. [2021-12-22 20:26:41,387 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 655 [2021-12-22 20:26:41,393 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 922 states to 922 states and 1156 transitions. [2021-12-22 20:26:41,394 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 922 [2021-12-22 20:26:41,394 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 922 [2021-12-22 20:26:41,395 INFO L73 IsDeterministic]: Start isDeterministic. Operand 922 states and 1156 transitions. [2021-12-22 20:26:41,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-22 20:26:41,398 INFO L681 BuchiCegarLoop]: Abstraction has 922 states and 1156 transitions. [2021-12-22 20:26:41,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 922 states and 1156 transitions. [2021-12-22 20:26:41,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 922 to 465. [2021-12-22 20:26:41,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 465 states have (on average 1.249462365591398) internal successors, (581), 464 states have internal predecessors, (581), 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) [2021-12-22 20:26:41,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 581 transitions. [2021-12-22 20:26:41,428 INFO L704 BuchiCegarLoop]: Abstraction has 465 states and 581 transitions. [2021-12-22 20:26:41,428 INFO L587 BuchiCegarLoop]: Abstraction has 465 states and 581 transitions. [2021-12-22 20:26:41,428 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-22 20:26:41,428 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 465 states and 581 transitions. [2021-12-22 20:26:41,431 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 340 [2021-12-22 20:26:41,431 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 20:26:41,431 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 20:26:41,433 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:26:41,433 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] [2021-12-22 20:26:41,434 INFO L791 eck$LassoCheckResult]: Stem: 2233#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0; 2128#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 2129#L954 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2140#L947 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 2113#L962 main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 2114#L508 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 2120#L479 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 2078#L889 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2079#L533-2 [2021-12-22 20:26:41,435 INFO L793 eck$LassoCheckResult]: Loop: 2079#L533-2 assume !false; 2387#L534 assume test_~splverifierCounter~0#1 < 4; 2388#L535 test_~tmp~4#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 2515#L543 assume !(0 != test_~tmp~4#1); 2513#L543-2 test_~tmp___0~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 2511#L553 assume !(0 != test_~tmp___0~0#1); 2509#L553-2 test_~tmp___2~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 2507#L563 assume 0 != test_~tmp___2~0#1; 2505#L569-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret49#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; 2508#L712 __utac_acc__Specification5_spec__2_#t~ret49#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret49#1;havoc __utac_acc__Specification5_spec__2_#t~ret49#1; 2506#L899 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 2366#L609 assume !(0 != ~pumpRunning~0); 2244#L609-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 2130#L641 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret43#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~9#1;havoc isHighWaterSensorDry_~retValue_acc~9#1; 2131#L871 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~9#1; 2205#L876 isHighWaterLevel_#t~ret43#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret43#1;havoc isHighWaterLevel_#t~ret43#1; 2206#L761 assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~1#1 := 0; 2208#L761-2 isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; 2227#L767 processEnvironment_#t~ret32#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~5#1 := processEnvironment_#t~ret32#1;havoc processEnvironment_#t~ret32#1; 2229#L645 assume !(0 != processEnvironment_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2245#L633 assume { :end_inline_processEnvironment__wrappee__base } true; 2518#L641-1 assume { :end_inline_processEnvironment } true; 2405#L616-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~8#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~8#1;havoc getWaterLevel_~retValue_acc~8#1;getWaterLevel_~retValue_acc~8#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~8#1; 2406#L863 __utac_acc__Specification5_spec__3_#t~ret50#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~8#1 := __utac_acc__Specification5_spec__3_#t~ret50#1;havoc __utac_acc__Specification5_spec__3_#t~ret50#1; 2401#L910 assume 2 != __utac_acc__Specification5_spec__3_~tmp~8#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; 2402#L712-1 __utac_acc__Specification5_spec__3_#t~ret51#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~2#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; 2398#L914 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2#1); 2397#L910-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 2393#L626 assume { :end_inline_timeShift } true; 2079#L533-2 [2021-12-22 20:26:41,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:26:41,436 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2021-12-22 20:26:41,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:26:41,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573431850] [2021-12-22 20:26:41,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:26:41,436 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:26:41,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:26:41,447 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:26:41,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:26:41,466 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:26:41,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:26:41,467 INFO L85 PathProgramCache]: Analyzing trace with hash 2009383803, now seen corresponding path program 1 times [2021-12-22 20:26:41,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:26:41,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225969130] [2021-12-22 20:26:41,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:26:41,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:26:41,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:26:41,474 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:26:41,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:26:41,479 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:26:41,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:26:41,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1379166926, now seen corresponding path program 1 times [2021-12-22 20:26:41,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:26:41,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698565933] [2021-12-22 20:26:41,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:26:41,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:26:41,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:26:41,502 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:26:41,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:26:41,522 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:26:44,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.12 08:26:44 BoogieIcfgContainer [2021-12-22 20:26:44,380 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-22 20:26:44,380 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-22 20:26:44,380 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-22 20:26:44,380 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-22 20:26:44,381 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:26:40" (3/4) ... [2021-12-22 20:26:44,383 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-22 20:26:44,453 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-22 20:26:44,453 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-22 20:26:44,454 INFO L158 Benchmark]: Toolchain (without parser) took 5455.12ms. Allocated memory was 90.2MB in the beginning and 146.8MB in the end (delta: 56.6MB). Free memory was 62.6MB in the beginning and 69.5MB in the end (delta: -6.9MB). Peak memory consumption was 49.5MB. Max. memory is 16.1GB. [2021-12-22 20:26:44,455 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 90.2MB. Free memory was 48.1MB in the beginning and 48.1MB in the end (delta: 5.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 20:26:44,455 INFO L158 Benchmark]: CACSL2BoogieTranslator took 414.50ms. Allocated memory was 90.2MB in the beginning and 121.6MB in the end (delta: 31.5MB). Free memory was 62.3MB in the beginning and 90.8MB in the end (delta: -28.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-22 20:26:44,455 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.18ms. Allocated memory is still 121.6MB. Free memory was 90.8MB in the beginning and 87.8MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-22 20:26:44,456 INFO L158 Benchmark]: Boogie Preprocessor took 26.36ms. Allocated memory is still 121.6MB. Free memory was 87.8MB in the beginning and 85.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-22 20:26:44,456 INFO L158 Benchmark]: RCFGBuilder took 597.51ms. Allocated memory is still 121.6MB. Free memory was 85.8MB in the beginning and 66.3MB in the end (delta: 19.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2021-12-22 20:26:44,456 INFO L158 Benchmark]: BuchiAutomizer took 4273.81ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 66.3MB in the beginning and 72.7MB in the end (delta: -6.4MB). Peak memory consumption was 59.1MB. Max. memory is 16.1GB. [2021-12-22 20:26:44,457 INFO L158 Benchmark]: Witness Printer took 73.28ms. Allocated memory is still 146.8MB. Free memory was 72.7MB in the beginning and 69.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-22 20:26:44,459 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 90.2MB. Free memory was 48.1MB in the beginning and 48.1MB in the end (delta: 5.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 414.50ms. Allocated memory was 90.2MB in the beginning and 121.6MB in the end (delta: 31.5MB). Free memory was 62.3MB in the beginning and 90.8MB in the end (delta: -28.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.18ms. Allocated memory is still 121.6MB. Free memory was 90.8MB in the beginning and 87.8MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.36ms. Allocated memory is still 121.6MB. Free memory was 87.8MB in the beginning and 85.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 597.51ms. Allocated memory is still 121.6MB. Free memory was 85.8MB in the beginning and 66.3MB in the end (delta: 19.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * BuchiAutomizer took 4273.81ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 66.3MB in the beginning and 72.7MB in the end (delta: -6.4MB). Peak memory consumption was 59.1MB. Max. memory is 16.1GB. * Witness Printer took 73.28ms. Allocated memory is still 146.8MB. Free memory was 72.7MB in the beginning and 69.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 465 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.1s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.5s. 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, 569 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 465 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1451 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1451 mSDsluCounter, 2153 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1599 mSDsCounter, 49 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 168 IncrementalHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 49 mSolverCounterUnsat, 554 mSDtfsCounter, 168 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 533]: 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@5ee566f9=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2a41b215=0, NULL=0, tmp___0=0, head=0, pumpRunning=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@56755fb=0, tmp___0=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@12910b89=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@29b4edf=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@77b57e5c=0, retValue_acc=1, methaneLevelCritical=0, retValue_acc=0, retValue_acc=1, tmp=1, \result=1, tmp=1, retValue_acc=1, \result=1, tmp___2=29, \result=0, tmp=1, cleanupTimeShifts=4, switchedOnBeforeTS=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7894df59=0, tmp___0=0, tmp=0, head=0, \result=1, tmp___1=0, NULL=0, retValue_acc=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@737f469a=0, tmp=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2ebb767f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72e571da=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 533]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L416] int cleanupTimeShifts = 4; [L597] int pumpRunning = 0; [L598] int systemActive = 1; [L788] int waterLevel = 1; [L789] int methaneLevelCritical = 0; [L883] int switchedOnBeforeTS ; [L499] int retValue_acc ; [L500] int tmp ; [L504] FCALL select_helpers() [L505] FCALL select_features() [L506] CALL, EXPR valid_product() [L958] int retValue_acc ; [L961] retValue_acc = 1 [L962] return (retValue_acc); [L506] RET, EXPR valid_product() [L506] tmp = valid_product() [L508] COND TRUE \read(tmp) [L510] FCALL setup() [L511] CALL runTest() [L489] CALL __utac_acc__Specification5_spec__1() [L888] switchedOnBeforeTS = 0 [L489] RET __utac_acc__Specification5_spec__1() [L490] CALL test() [L524] int splverifierCounter ; [L525] int tmp ; [L526] int tmp___0 ; [L527] int tmp___1 ; [L528] int tmp___2 ; [L531] splverifierCounter = 0 Loop: [L533] COND TRUE 1 [L535] COND TRUE splverifierCounter < 4 [L541] tmp = __VERIFIER_nondet_int() [L543] COND FALSE !(\read(tmp)) [L551] tmp___0 = __VERIFIER_nondet_int() [L553] COND FALSE !(\read(tmp___0)) [L561] tmp___2 = __VERIFIER_nondet_int() [L563] COND TRUE \read(tmp___2) [L578] CALL timeShift() [L607] CALL __utac_acc__Specification5_spec__2() [L897] CALL, EXPR isPumpRunning() [L708] int retValue_acc ; [L711] retValue_acc = pumpRunning [L712] return (retValue_acc); [L897] RET, EXPR isPumpRunning() [L897] switchedOnBeforeTS = isPumpRunning() [L607] RET __utac_acc__Specification5_spec__2() [L609] COND FALSE !(\read(pumpRunning)) [L616] COND TRUE \read(systemActive) [L618] CALL processEnvironment() [L638] int tmp ; [L641] COND TRUE ! pumpRunning [L643] CALL, EXPR isHighWaterLevel() [L753] int retValue_acc ; [L754] int tmp ; [L755] int tmp___0 ; [L759] CALL, EXPR isHighWaterSensorDry() [L868] int retValue_acc ; [L871] COND TRUE waterLevel < 2 [L872] retValue_acc = 1 [L873] return (retValue_acc); [L759] RET, EXPR isHighWaterSensorDry() [L759] tmp = isHighWaterSensorDry() [L761] COND TRUE \read(tmp) [L762] tmp___0 = 0 [L766] retValue_acc = tmp___0 [L767] return (retValue_acc); [L643] RET, EXPR isHighWaterLevel() [L643] tmp = isHighWaterLevel() [L645] COND FALSE !(\read(tmp)) [L651] FCALL processEnvironment__wrappee__base() [L618] RET processEnvironment() [L624] CALL __utac_acc__Specification5_spec__3() [L903] int tmp ; [L904] int tmp___0 ; [L908] CALL, EXPR getWaterLevel() [L859] int retValue_acc ; [L862] retValue_acc = waterLevel [L863] return (retValue_acc); [L908] RET, EXPR getWaterLevel() [L908] tmp = getWaterLevel() [L910] COND TRUE tmp != 2 [L912] CALL, EXPR isPumpRunning() [L708] int retValue_acc ; [L711] retValue_acc = pumpRunning [L712] return (retValue_acc); [L912] RET, EXPR isPumpRunning() [L912] tmp___0 = isPumpRunning() [L914] COND FALSE !(\read(tmp___0)) [L624] RET __utac_acc__Specification5_spec__3() [L578] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-22 20:26:44,513 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)