./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product42.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version ae007674 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_spec4_product42.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 190527f0b5c755657048457e241e1db06174c0bd15c9c37dddb3c55b0e7d73ce --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 09:41:21,777 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 09:41:21,779 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 09:41:21,809 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 09:41:21,810 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 09:41:21,812 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 09:41:21,814 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 09:41:21,824 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 09:41:21,826 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 09:41:21,826 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 09:41:21,827 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 09:41:21,828 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 09:41:21,830 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 09:41:21,832 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 09:41:21,833 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 09:41:21,834 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 09:41:21,835 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 09:41:21,840 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 09:41:21,841 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 09:41:21,845 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 09:41:21,846 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 09:41:21,849 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 09:41:21,850 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 09:41:21,850 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 09:41:21,852 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 09:41:21,854 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 09:41:21,855 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 09:41:21,855 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 09:41:21,856 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 09:41:21,856 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 09:41:21,857 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 09:41:21,857 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 09:41:21,858 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 09:41:21,859 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 09:41:21,860 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 09:41:21,860 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 09:41:21,861 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 09:41:21,861 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 09:41:21,861 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 09:41:21,861 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 09:41:21,863 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 09:41:21,863 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-28 09:41:21,894 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 09:41:21,895 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 09:41:21,895 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 09:41:21,895 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 09:41:21,897 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 09:41:21,897 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 09:41:21,897 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 09:41:21,897 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-28 09:41:21,897 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-28 09:41:21,897 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-28 09:41:21,898 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-28 09:41:21,898 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-28 09:41:21,898 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-28 09:41:21,899 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 09:41:21,899 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-28 09:41:21,899 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-28 09:41:21,899 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 09:41:21,899 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-28 09:41:21,899 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 09:41:21,899 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-28 09:41:21,900 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-28 09:41:21,900 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-28 09:41:21,900 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-28 09:41:21,900 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 09:41:21,900 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-28 09:41:21,900 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 09:41:21,901 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-28 09:41:21,901 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 09:41:21,901 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 09:41:21,901 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 09:41:21,901 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 09:41:21,902 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-28 09:41:21,902 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 190527f0b5c755657048457e241e1db06174c0bd15c9c37dddb3c55b0e7d73ce [2021-12-28 09:41:22,154 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 09:41:22,172 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 09:41:22,174 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 09:41:22,175 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 09:41:22,175 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 09:41:22,177 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product42.cil.c [2021-12-28 09:41:22,220 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c334992b/69674a1eeffa4b74a919e043d0377f58/FLAG6d467dda1 [2021-12-28 09:41:22,607 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 09:41:22,615 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product42.cil.c [2021-12-28 09:41:22,628 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c334992b/69674a1eeffa4b74a919e043d0377f58/FLAG6d467dda1 [2021-12-28 09:41:22,642 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c334992b/69674a1eeffa4b74a919e043d0377f58 [2021-12-28 09:41:22,644 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 09:41:22,646 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 09:41:22,646 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 09:41:22,646 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 09:41:22,649 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 09:41:22,650 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 09:41:22" (1/1) ... [2021-12-28 09:41:22,651 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b36db59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:41:22, skipping insertion in model container [2021-12-28 09:41:22,651 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 09:41:22" (1/1) ... [2021-12-28 09:41:22,655 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 09:41:22,697 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 09:41:22,951 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_spec4_product42.cil.c[17943,17956] [2021-12-28 09:41:22,954 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 09:41:22,963 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 09:41:23,032 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_spec4_product42.cil.c[17943,17956] [2021-12-28 09:41:23,037 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 09:41:23,057 INFO L208 MainTranslator]: Completed translation [2021-12-28 09:41:23,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:41:23 WrapperNode [2021-12-28 09:41:23,058 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 09:41:23,059 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 09:41:23,059 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 09:41:23,059 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 09:41:23,064 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:41:23" (1/1) ... [2021-12-28 09:41:23,092 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:41:23" (1/1) ... [2021-12-28 09:41:23,135 INFO L137 Inliner]: procedures = 54, calls = 152, calls flagged for inlining = 49, calls inlined = 57, statements flattened = 455 [2021-12-28 09:41:23,135 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 09:41:23,136 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 09:41:23,136 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 09:41:23,136 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 09:41:23,142 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:41:23" (1/1) ... [2021-12-28 09:41:23,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:41:23" (1/1) ... [2021-12-28 09:41:23,148 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:41:23" (1/1) ... [2021-12-28 09:41:23,148 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:41:23" (1/1) ... [2021-12-28 09:41:23,155 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:41:23" (1/1) ... [2021-12-28 09:41:23,168 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:41:23" (1/1) ... [2021-12-28 09:41:23,170 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:41:23" (1/1) ... [2021-12-28 09:41:23,174 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 09:41:23,175 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 09:41:23,176 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 09:41:23,176 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 09:41:23,177 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:41:23" (1/1) ... [2021-12-28 09:41:23,182 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:41:23,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:41:23,216 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) [2021-12-28 09:41:23,246 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 [2021-12-28 09:41:23,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 09:41:23,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 09:41:23,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 09:41:23,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 09:41:23,329 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 09:41:23,330 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 09:41:23,630 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 09:41:23,637 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 09:41:23,637 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-28 09:41:23,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:41:23 BoogieIcfgContainer [2021-12-28 09:41:23,640 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 09:41:23,640 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-28 09:41:23,641 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-28 09:41:23,643 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-28 09:41:23,644 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:41:23,644 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.12 09:41:22" (1/3) ... [2021-12-28 09:41:23,645 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@49672930 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.12 09:41:23, skipping insertion in model container [2021-12-28 09:41:23,645 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:41:23,646 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:41:23" (2/3) ... [2021-12-28 09:41:23,646 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@49672930 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.12 09:41:23, skipping insertion in model container [2021-12-28 09:41:23,646 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:41:23,646 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:41:23" (3/3) ... [2021-12-28 09:41:23,647 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product42.cil.c [2021-12-28 09:41:23,679 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-28 09:41:23,680 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-28 09:41:23,680 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-28 09:41:23,680 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-28 09:41:23,680 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-28 09:41:23,680 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-28 09:41:23,680 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-28 09:41:23,681 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-28 09:41:23,691 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 118 states, 117 states have (on average 1.3675213675213675) internal successors, (160), 117 states have internal predecessors, (160), 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) [2021-12-28 09:41:23,711 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2021-12-28 09:41:23,711 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:41:23,711 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:41:23,729 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:41:23,729 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:41:23,729 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-28 09:41:23,730 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 118 states, 117 states have (on average 1.3675213675213675) internal successors, (160), 117 states have internal predecessors, (160), 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) [2021-12-28 09:41:23,740 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2021-12-28 09:41:23,741 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:41:23,741 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:41:23,742 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:41:23,742 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:41:23,749 INFO L791 eck$LassoCheckResult]: Stem: 105#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 35#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret35#1, main_~retValue_acc~8#1, main_~tmp~4#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 10#L542true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 80#L535true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;havoc valid_product_~retValue_acc~7#1;valid_product_~retValue_acc~7#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~7#1; 120#L550true main_#t~ret35#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret35#1;havoc main_#t~ret35#1; 27#L668true assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 97#L644true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet36#1, test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 53#L693-2true [2021-12-28 09:41:23,749 INFO L793 eck$LassoCheckResult]: Loop: 53#L693-2true assume !false; 83#L694true assume test_~splverifierCounter~0#1 < 4; 115#L695true test_~tmp~5#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 16#L703true assume !(0 != test_~tmp~5#1); 86#L703-2true test_~tmp___0~1#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 93#L713true assume !(0 != test_~tmp___0~1#1); 19#L713-2true test_~tmp___2~0#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 117#L723true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 90#L731true assume 0 != test_~tmp___1~0#1; 4#L731-2true assume { :begin_inline_timeShift } true; 31#L759true assume !(0 != ~pumpRunning~0); 39#L759-2true assume !(0 != ~systemActive~0); 25#L766-1true assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret33#1, __utac_acc__Specification4_spec__1_#t~ret34#1, __utac_acc__Specification4_spec__1_~tmp~3#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~3#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 113#L132true __utac_acc__Specification4_spec__1_#t~ret33#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~3#1 := __utac_acc__Specification4_spec__1_#t~ret33#1;havoc __utac_acc__Specification4_spec__1_#t~ret33#1; 22#L565true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3#1); 21#L565-1true assume { :end_inline___utac_acc__Specification4_spec__1 } true; 26#L776true assume { :end_inline_timeShift } true; 53#L693-2true [2021-12-28 09:41:23,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:41:23,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2021-12-28 09:41:23,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:41:23,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893206250] [2021-12-28 09:41:23,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:41:23,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:41:23,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:41:23,881 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:41:23,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:41:23,927 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:41:23,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:41:23,929 INFO L85 PathProgramCache]: Analyzing trace with hash 416756162, now seen corresponding path program 1 times [2021-12-28 09:41:23,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:41:23,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006091843] [2021-12-28 09:41:23,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:41:23,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:41:23,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:41:23,952 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:41:23,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:41:23,958 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:41:23,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:41:23,962 INFO L85 PathProgramCache]: Analyzing trace with hash -514925442, now seen corresponding path program 1 times [2021-12-28 09:41:23,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:41:23,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420893562] [2021-12-28 09:41:23,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:41:23,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:41:23,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:41:24,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:41:24,091 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 09:41:24,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420893562] [2021-12-28 09:41:24,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420893562] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 09:41:24,099 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 09:41:24,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 09:41:24,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837469006] [2021-12-28 09:41:24,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 09:41:24,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 09:41:24,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 09:41:24,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-28 09:41:24,296 INFO L87 Difference]: Start difference. First operand has 118 states, 117 states have (on average 1.3675213675213675) internal successors, (160), 117 states have internal predecessors, (160), 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 4.0) internal successors, (24), 5 states have internal predecessors, (24), 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) [2021-12-28 09:41:24,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 09:41:24,387 INFO L93 Difference]: Finished difference Result 115 states and 146 transitions. [2021-12-28 09:41:24,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 09:41:24,391 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 115 states and 146 transitions. [2021-12-28 09:41:24,393 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2021-12-28 09:41:24,396 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 115 states to 105 states and 136 transitions. [2021-12-28 09:41:24,397 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 105 [2021-12-28 09:41:24,398 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 105 [2021-12-28 09:41:24,398 INFO L73 IsDeterministic]: Start isDeterministic. Operand 105 states and 136 transitions. [2021-12-28 09:41:24,411 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 09:41:24,412 INFO L681 BuchiCegarLoop]: Abstraction has 105 states and 136 transitions. [2021-12-28 09:41:24,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states and 136 transitions. [2021-12-28 09:41:24,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2021-12-28 09:41:24,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 105 states have (on average 1.2952380952380953) internal successors, (136), 104 states have internal predecessors, (136), 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) [2021-12-28 09:41:24,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 136 transitions. [2021-12-28 09:41:24,443 INFO L704 BuchiCegarLoop]: Abstraction has 105 states and 136 transitions. [2021-12-28 09:41:24,443 INFO L587 BuchiCegarLoop]: Abstraction has 105 states and 136 transitions. [2021-12-28 09:41:24,444 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-28 09:41:24,444 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 105 states and 136 transitions. [2021-12-28 09:41:24,445 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2021-12-28 09:41:24,447 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:41:24,447 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:41:24,448 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:41:24,448 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] [2021-12-28 09:41:24,448 INFO L791 eck$LassoCheckResult]: Stem: 355#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 302#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret35#1, main_~retValue_acc~8#1, main_~tmp~4#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 264#L542 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 265#L535 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;havoc valid_product_~retValue_acc~7#1;valid_product_~retValue_acc~7#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~7#1; 340#L550 main_#t~ret35#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret35#1;havoc main_#t~ret35#1; 294#L668 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 295#L644 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet36#1, test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 293#L693-2 [2021-12-28 09:41:24,449 INFO L793 eck$LassoCheckResult]: Loop: 293#L693-2 assume !false; 323#L694 assume test_~splverifierCounter~0#1 < 4; 343#L695 test_~tmp~5#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 276#L703 assume !(0 != test_~tmp~5#1); 278#L703-2 test_~tmp___0~1#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 347#L713 assume !(0 != test_~tmp___0~1#1); 256#L713-2 test_~tmp___2~0#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 282#L723 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 348#L926 assume { :end_inline_startSystem } true; 251#L731-2 assume { :begin_inline_timeShift } true; 252#L759 assume !(0 != ~pumpRunning~0); 289#L759-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret40#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 296#L791 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 297#L783-1 assume { :end_inline_processEnvironment__wrappee__base } true; 290#L791-1 assume { :end_inline_processEnvironment } true; 291#L766-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret33#1, __utac_acc__Specification4_spec__1_#t~ret34#1, __utac_acc__Specification4_spec__1_~tmp~3#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~3#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 292#L132 __utac_acc__Specification4_spec__1_#t~ret33#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~3#1 := __utac_acc__Specification4_spec__1_#t~ret33#1;havoc __utac_acc__Specification4_spec__1_#t~ret33#1; 287#L565 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3#1); 285#L565-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 286#L776 assume { :end_inline_timeShift } true; 293#L693-2 [2021-12-28 09:41:24,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:41:24,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2021-12-28 09:41:24,449 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:41:24,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439719633] [2021-12-28 09:41:24,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:41:24,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:41:24,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:41:24,462 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:41:24,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:41:24,484 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:41:24,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:41:24,487 INFO L85 PathProgramCache]: Analyzing trace with hash 956673032, now seen corresponding path program 1 times [2021-12-28 09:41:24,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:41:24,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302719953] [2021-12-28 09:41:24,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:41:24,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:41:24,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:41:24,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:41:24,508 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 09:41:24,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302719953] [2021-12-28 09:41:24,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302719953] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 09:41:24,509 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 09:41:24,509 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 09:41:24,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058447616] [2021-12-28 09:41:24,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 09:41:24,510 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-28 09:41:24,511 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 09:41:24,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 09:41:24,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 09:41:24,514 INFO L87 Difference]: Start difference. First operand 105 states and 136 transitions. cyclomatic complexity: 33 Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2021-12-28 09:41:24,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 09:41:24,573 INFO L93 Difference]: Finished difference Result 161 states and 202 transitions. [2021-12-28 09:41:24,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 09:41:24,574 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 161 states and 202 transitions. [2021-12-28 09:41:24,576 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 114 [2021-12-28 09:41:24,578 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 161 states to 161 states and 202 transitions. [2021-12-28 09:41:24,579 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 161 [2021-12-28 09:41:24,579 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 161 [2021-12-28 09:41:24,581 INFO L73 IsDeterministic]: Start isDeterministic. Operand 161 states and 202 transitions. [2021-12-28 09:41:24,582 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 09:41:24,582 INFO L681 BuchiCegarLoop]: Abstraction has 161 states and 202 transitions. [2021-12-28 09:41:24,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states and 202 transitions. [2021-12-28 09:41:24,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2021-12-28 09:41:24,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 161 states have (on average 1.2546583850931676) internal successors, (202), 160 states have internal predecessors, (202), 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) [2021-12-28 09:41:24,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 202 transitions. [2021-12-28 09:41:24,594 INFO L704 BuchiCegarLoop]: Abstraction has 161 states and 202 transitions. [2021-12-28 09:41:24,594 INFO L587 BuchiCegarLoop]: Abstraction has 161 states and 202 transitions. [2021-12-28 09:41:24,594 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-28 09:41:24,594 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 161 states and 202 transitions. [2021-12-28 09:41:24,595 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 114 [2021-12-28 09:41:24,595 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:41:24,595 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:41:24,596 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:41:24,597 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] [2021-12-28 09:41:24,597 INFO L791 eck$LassoCheckResult]: Stem: 636#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 574#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret35#1, main_~retValue_acc~8#1, main_~tmp~4#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 536#L542 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 537#L535 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;havoc valid_product_~retValue_acc~7#1;valid_product_~retValue_acc~7#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~7#1; 615#L550 main_#t~ret35#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret35#1;havoc main_#t~ret35#1; 566#L668 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 567#L644 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet36#1, test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 563#L693-2 [2021-12-28 09:41:24,598 INFO L793 eck$LassoCheckResult]: Loop: 563#L693-2 assume !false; 594#L694 assume test_~splverifierCounter~0#1 < 4; 620#L695 test_~tmp~5#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 546#L703 assume !(0 != test_~tmp~5#1); 548#L703-2 test_~tmp___0~1#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 624#L713 assume !(0 != test_~tmp___0~1#1); 528#L713-2 test_~tmp___2~0#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 552#L723 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 625#L926 assume { :end_inline_startSystem } true; 523#L731-2 assume { :begin_inline_timeShift } true; 524#L759 assume !(0 != ~pumpRunning~0); 569#L759-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret40#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 564#L791 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret51#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~11#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 565#L140 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 592#L145 isHighWaterLevel_#t~ret51#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret51#1;havoc isHighWaterLevel_#t~ret51#1; 593#L911 assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~2#1 := 0; 553#L911-2 isHighWaterLevel_~retValue_acc~11#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~11#1; 554#L917 processEnvironment_#t~ret40#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~6#1 := processEnvironment_#t~ret40#1;havoc processEnvironment_#t~ret40#1; 529#L795 assume !(0 != processEnvironment_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 531#L783 assume { :end_inline_processEnvironment__wrappee__base } true; 560#L791-1 assume { :end_inline_processEnvironment } true; 561#L766-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret33#1, __utac_acc__Specification4_spec__1_#t~ret34#1, __utac_acc__Specification4_spec__1_~tmp~3#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~3#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 562#L132 __utac_acc__Specification4_spec__1_#t~ret33#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~3#1 := __utac_acc__Specification4_spec__1_#t~ret33#1;havoc __utac_acc__Specification4_spec__1_#t~ret33#1; 557#L565 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3#1); 555#L565-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 556#L776 assume { :end_inline_timeShift } true; 563#L693-2 [2021-12-28 09:41:24,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:41:24,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2021-12-28 09:41:24,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:41:24,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811133576] [2021-12-28 09:41:24,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:41:24,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:41:24,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:41:24,617 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:41:24,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:41:24,624 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:41:24,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:41:24,624 INFO L85 PathProgramCache]: Analyzing trace with hash 20566992, now seen corresponding path program 1 times [2021-12-28 09:41:24,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:41:24,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615900655] [2021-12-28 09:41:24,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:41:24,625 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:41:24,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:41:24,630 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:41:24,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:41:24,635 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:41:24,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:41:24,636 INFO L85 PathProgramCache]: Analyzing trace with hash -105874284, now seen corresponding path program 1 times [2021-12-28 09:41:24,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:41:24,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050459900] [2021-12-28 09:41:24,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:41:24,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:41:24,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:41:24,645 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:41:24,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:41:24,655 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:41:27,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.12 09:41:27 BoogieIcfgContainer [2021-12-28 09:41:27,463 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-28 09:41:27,463 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-28 09:41:27,463 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-28 09:41:27,464 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-28 09:41:27,464 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:41:23" (3/4) ... [2021-12-28 09:41:27,466 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-28 09:41:27,494 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-28 09:41:27,494 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-28 09:41:27,495 INFO L158 Benchmark]: Toolchain (without parser) took 4849.14ms. Allocated memory was 56.6MB in the beginning and 130.0MB in the end (delta: 73.4MB). Free memory was 35.1MB in the beginning and 83.2MB in the end (delta: -48.1MB). Peak memory consumption was 24.6MB. Max. memory is 16.1GB. [2021-12-28 09:41:27,495 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 56.6MB. Free memory was 39.4MB in the beginning and 39.3MB in the end (delta: 47.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 09:41:27,495 INFO L158 Benchmark]: CACSL2BoogieTranslator took 411.63ms. Allocated memory is still 56.6MB. Free memory was 34.9MB in the beginning and 32.3MB in the end (delta: 2.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-28 09:41:27,496 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.63ms. Allocated memory is still 56.6MB. Free memory was 32.3MB in the beginning and 29.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 09:41:27,496 INFO L158 Benchmark]: Boogie Preprocessor took 39.12ms. Allocated memory is still 56.6MB. Free memory was 29.3MB in the beginning and 27.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 09:41:27,496 INFO L158 Benchmark]: RCFGBuilder took 464.42ms. Allocated memory was 56.6MB in the beginning and 75.5MB in the end (delta: 18.9MB). Free memory was 27.5MB in the beginning and 43.0MB in the end (delta: -15.4MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. [2021-12-28 09:41:27,497 INFO L158 Benchmark]: BuchiAutomizer took 3822.29ms. Allocated memory was 75.5MB in the beginning and 130.0MB in the end (delta: 54.5MB). Free memory was 43.0MB in the beginning and 86.3MB in the end (delta: -43.4MB). Peak memory consumption was 51.4MB. Max. memory is 16.1GB. [2021-12-28 09:41:27,497 INFO L158 Benchmark]: Witness Printer took 31.17ms. Allocated memory is still 130.0MB. Free memory was 86.3MB in the beginning and 83.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 09:41:27,498 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 56.6MB. Free memory was 39.4MB in the beginning and 39.3MB in the end (delta: 47.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 411.63ms. Allocated memory is still 56.6MB. Free memory was 34.9MB in the beginning and 32.3MB in the end (delta: 2.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.63ms. Allocated memory is still 56.6MB. Free memory was 32.3MB in the beginning and 29.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.12ms. Allocated memory is still 56.6MB. Free memory was 29.3MB in the beginning and 27.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 464.42ms. Allocated memory was 56.6MB in the beginning and 75.5MB in the end (delta: 18.9MB). Free memory was 27.5MB in the beginning and 43.0MB in the end (delta: -15.4MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 3822.29ms. Allocated memory was 75.5MB in the beginning and 130.0MB in the end (delta: 54.5MB). Free memory was 43.0MB in the beginning and 86.3MB in the end (delta: -43.4MB). Peak memory consumption was 51.4MB. Max. memory is 16.1GB. * Witness Printer took 31.17ms. Allocated memory is still 130.0MB. Free memory was 86.3MB in the beginning and 83.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 161 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 161 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 534 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 534 mSDsluCounter, 353 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 76 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 29 IncrementalHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 277 mSDtfsCounter, 29 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 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: 693]: 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, NULL=0, head=0, tmp___0=0, pumpRunning=0, NULL=1, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b5a4d=0, tmp___0=0, retValue_acc=1, methaneLevelCritical=0, tmp=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@60dc8bd1=29, tmp=1, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e5674be=0, retValue_acc=0, \result=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f39e0d5=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@19392db6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b3c59c6=0, tmp___2=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@575e7968=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@34fb65b4=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@16685eb3=0, cleanupTimeShifts=4, \result=0, head=0, \result=1, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, retValue_acc=1, tmp=0, \result=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 693]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L320] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L583] int cleanupTimeShifts = 4; [L752] int pumpRunning = 0; [L753] int systemActive = 1; [L659] int retValue_acc ; [L660] int tmp ; [L664] FCALL select_helpers() [L665] FCALL select_features() [L666] CALL, EXPR valid_product() [L546] int retValue_acc ; [L549] retValue_acc = 1 [L550] return (retValue_acc); [L666] RET, EXPR valid_product() [L666] tmp = valid_product() [L668] COND TRUE \read(tmp) [L670] FCALL setup() [L671] CALL runTest() [L653] CALL test() [L684] int splverifierCounter ; [L685] int tmp ; [L686] int tmp___0 ; [L687] int tmp___1 ; [L688] int tmp___2 ; [L691] splverifierCounter = 0 Loop: [L693] COND TRUE 1 [L695] COND TRUE splverifierCounter < 4 [L701] tmp = __VERIFIER_nondet_int() [L703] COND FALSE !(\read(tmp)) [L711] tmp___0 = __VERIFIER_nondet_int() [L713] COND FALSE !(\read(tmp___0)) [L721] tmp___2 = __VERIFIER_nondet_int() [L723] COND TRUE \read(tmp___2) [L725] CALL startSystem() [L925] systemActive = 1 [L725] RET startSystem() [L738] CALL timeShift() [L759] COND FALSE !(\read(pumpRunning)) [L766] COND TRUE \read(systemActive) [L768] CALL processEnvironment() [L788] int tmp ; [L791] COND TRUE ! pumpRunning [L793] CALL, EXPR isHighWaterLevel() [L903] int retValue_acc ; [L904] int tmp ; [L905] int tmp___0 ; [L909] CALL, EXPR isHighWaterSensorDry() [L137] int retValue_acc ; [L140] COND TRUE waterLevel < 2 [L141] retValue_acc = 1 [L142] return (retValue_acc); [L909] RET, EXPR isHighWaterSensorDry() [L909] tmp = isHighWaterSensorDry() [L911] COND TRUE \read(tmp) [L912] tmp___0 = 0 [L916] retValue_acc = tmp___0 [L917] return (retValue_acc); [L793] RET, EXPR isHighWaterLevel() [L793] tmp = isHighWaterLevel() [L795] COND FALSE !(\read(tmp)) [L801] FCALL processEnvironment__wrappee__base() [L768] RET processEnvironment() [L774] CALL __utac_acc__Specification4_spec__1() [L558] int tmp ; [L559] int tmp___0 ; [L563] CALL, EXPR getWaterLevel() [L128] int retValue_acc ; [L131] retValue_acc = waterLevel [L132] return (retValue_acc); [L563] RET, EXPR getWaterLevel() [L563] tmp = getWaterLevel() [L565] COND FALSE !(tmp == 0) [L774] RET __utac_acc__Specification4_spec__1() [L738] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-28 09:41:27,531 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)