./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product14.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 20ed64ec 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_spec2_product14.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 ac889cd5e65bb2f47f07806422e2c45f6310f706 .................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 16:01:07,839 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 16:01:07,841 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 16:01:07,866 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 16:01:07,867 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 16:01:07,868 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 16:01:07,869 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 16:01:07,871 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 16:01:07,876 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 16:01:07,878 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 16:01:07,878 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 16:01:07,880 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 16:01:07,880 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 16:01:07,881 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 16:01:07,882 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 16:01:07,883 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 16:01:07,884 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 16:01:07,885 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 16:01:07,886 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 16:01:07,888 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 16:01:07,889 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 16:01:07,890 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 16:01:07,891 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 16:01:07,892 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 16:01:07,894 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 16:01:07,895 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 16:01:07,895 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 16:01:07,896 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 16:01:07,896 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 16:01:07,897 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 16:01:07,897 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 16:01:07,898 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 16:01:07,899 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 16:01:07,900 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 16:01:07,901 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 16:01:07,901 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 16:01:07,902 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 16:01:07,902 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 16:01:07,902 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 16:01:07,903 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 16:01:07,904 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 16:01:07,905 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-27 16:01:07,927 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 16:01:07,927 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 16:01:07,928 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 16:01:07,928 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 16:01:07,929 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 16:01:07,929 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 16:01:07,929 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 16:01:07,930 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 16:01:07,930 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 16:01:07,930 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 16:01:07,930 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 16:01:07,930 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 16:01:07,930 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 16:01:07,931 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 16:01:07,931 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 16:01:07,931 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 16:01:07,931 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 16:01:07,931 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 16:01:07,932 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 16:01:07,932 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 16:01:07,932 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 16:01:07,932 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 16:01:07,932 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 16:01:07,932 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 16:01:07,933 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 16:01:07,933 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 16:01:07,933 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 16:01:07,933 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 16:01:07,933 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 16:01:07,934 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 16:01:07,934 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 16:01:07,934 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 16:01:07,935 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 16:01:07,935 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac889cd5e65bb2f47f07806422e2c45f6310f706 [2021-08-27 16:01:08,225 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 16:01:08,257 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 16:01:08,259 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 16:01:08,260 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 16:01:08,260 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 16:01:08,261 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product14.cil.c [2021-08-27 16:01:08,328 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec9e7d867/a8642ce67927488cb8a0f76a34d56f28/FLAG02d9ad019 [2021-08-27 16:01:08,867 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 16:01:08,868 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product14.cil.c [2021-08-27 16:01:08,882 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec9e7d867/a8642ce67927488cb8a0f76a34d56f28/FLAG02d9ad019 [2021-08-27 16:01:09,186 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec9e7d867/a8642ce67927488cb8a0f76a34d56f28 [2021-08-27 16:01:09,193 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 16:01:09,195 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 16:01:09,197 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 16:01:09,197 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 16:01:09,200 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 16:01:09,201 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:01:09" (1/1) ... [2021-08-27 16:01:09,203 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cfc55c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:01:09, skipping insertion in model container [2021-08-27 16:01:09,203 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:01:09" (1/1) ... [2021-08-27 16:01:09,209 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 16:01:09,253 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 16:01:09,406 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product14.cil.c[2483,2496] [2021-08-27 16:01:09,540 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 16:01:09,553 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 16:01:09,600 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product14.cil.c[2483,2496] [2021-08-27 16:01:09,645 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 16:01:09,660 INFO L208 MainTranslator]: Completed translation [2021-08-27 16:01:09,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:01:09 WrapperNode [2021-08-27 16:01:09,661 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 16:01:09,662 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 16:01:09,662 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 16:01:09,662 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 16:01:09,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:01:09" (1/1) ... [2021-08-27 16:01:09,681 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:01:09" (1/1) ... [2021-08-27 16:01:09,733 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 16:01:09,736 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 16:01:09,736 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 16:01:09,736 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 16:01:09,743 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:01:09" (1/1) ... [2021-08-27 16:01:09,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:01:09" (1/1) ... [2021-08-27 16:01:09,759 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:01:09" (1/1) ... [2021-08-27 16:01:09,759 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:01:09" (1/1) ... [2021-08-27 16:01:09,765 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:01:09" (1/1) ... [2021-08-27 16:01:09,782 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:01:09" (1/1) ... [2021-08-27 16:01:09,786 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:01:09" (1/1) ... [2021-08-27 16:01:09,792 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 16:01:09,794 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 16:01:09,794 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 16:01:09,795 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 16:01:09,796 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:01:09" (1/1) ... [2021-08-27 16:01:09,802 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:01:09,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:01:09,822 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 16:01:09,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-08-27 16:01:09,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 16:01:09,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 16:01:09,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 16:01:09,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 16:01:10,572 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 16:01:10,573 INFO L299 CfgBuilder]: Removed 100 assume(true) statements. [2021-08-27 16:01:10,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:01:10 BoogieIcfgContainer [2021-08-27 16:01:10,575 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 16:01:10,577 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 16:01:10,578 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 16:01:10,581 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 16:01:10,582 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:01:10,582 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 04:01:09" (1/3) ... [2021-08-27 16:01:10,584 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@29a17619 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 04:01:10, skipping insertion in model container [2021-08-27 16:01:10,584 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:01:10,584 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:01:09" (2/3) ... [2021-08-27 16:01:10,584 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@29a17619 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 04:01:10, skipping insertion in model container [2021-08-27 16:01:10,584 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:01:10,584 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:01:10" (3/3) ... [2021-08-27 16:01:10,585 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product14.cil.c [2021-08-27 16:01:10,630 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 16:01:10,630 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 16:01:10,630 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 16:01:10,630 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 16:01:10,631 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 16:01:10,631 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 16:01:10,631 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 16:01:10,631 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 16:01:10,650 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 70 states, 69 states have (on average 1.536231884057971) internal successors, (106), 69 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 16:01:10,673 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2021-08-27 16:01:10,673 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:01:10,673 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:01:10,679 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:01:10,679 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:01:10,679 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 16:01:10,680 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 70 states, 69 states have (on average 1.536231884057971) internal successors, (106), 69 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 16:01:10,691 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2021-08-27 16:01:10,692 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:01:10,692 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:01:10,693 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:01:10,693 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:01:10,698 INFO L791 eck$LassoCheckResult]: Stem: 58#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(21);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(21);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(25);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(110, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 3 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(80, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(117, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(109, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(112, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(110, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 3 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(32, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 49#L-1true havoc main_#res;havoc main_#t~ret18, main_~retValue_acc~4, main_~tmp~0;havoc main_~retValue_acc~4;havoc main_~tmp~0; 41#L162true havoc valid_product_#res;havoc valid_product_~retValue_acc~3;havoc valid_product_~retValue_acc~3;valid_product_~retValue_acc~3 := 1;valid_product_#res := valid_product_~retValue_acc~3; 71#L170true main_#t~ret18 := valid_product_#res;main_~tmp~0 := main_#t~ret18;havoc main_#t~ret18; 61#L262true assume 0 != main_~tmp~0; 65#L236true ~methAndRunningLastTime~0 := 0; 32#L283true havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 23#L294-1true [2021-08-27 16:01:10,705 INFO L793 eck$LassoCheckResult]: Loop: 23#L294-1true assume !false; 25#L694true assume test_~splverifierCounter~0 < 4; 66#L695true test_~tmp~5 := test_#t~nondet56;havoc test_#t~nondet56; 12#L703true assume !(0 != test_~tmp~5); 54#L703-1true test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 40#L713true assume !(0 != test_~tmp___0~1); 16#L713-1true test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 69#L723true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 5#L731-2true assume !(0 != ~pumpRunning~0); 44#L759true assume !(0 != ~systemActive~0); 11#L766true havoc __utac_acc__Specification2_spec__2_#t~ret19, __utac_acc__Specification2_spec__2_#t~ret20, __utac_acc__Specification2_spec__2_~tmp~1, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 45#L91-1true __utac_acc__Specification2_spec__2_#t~ret19 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~1 := __utac_acc__Specification2_spec__2_#t~ret19;havoc __utac_acc__Specification2_spec__2_#t~ret19; 53#L294true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1);~methAndRunningLastTime~0 := 0; 23#L294-1true [2021-08-27 16:01:10,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:01:10,711 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-08-27 16:01:10,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:01:10,719 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150104734] [2021-08-27 16:01:10,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:01:10,720 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:01:10,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:01:10,969 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:01:11,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:01:11,096 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:01:11,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:01:11,102 INFO L82 PathProgramCache]: Analyzing trace with hash 3338059, now seen corresponding path program 1 times [2021-08-27 16:01:11,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:01:11,104 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963166278] [2021-08-27 16:01:11,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:01:11,104 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:01:11,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:01:11,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 16:01:11,163 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 16:01:11,163 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963166278] [2021-08-27 16:01:11,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963166278] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 16:01:11,164 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 16:01:11,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 16:01:11,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253992908] [2021-08-27 16:01:11,170 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-27 16:01:11,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 16:01:11,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 16:01:11,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 16:01:11,186 INFO L87 Difference]: Start difference. First operand has 70 states, 69 states have (on average 1.536231884057971) internal successors, (106), 69 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 16:01:11,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 16:01:11,223 INFO L93 Difference]: Finished difference Result 70 states and 96 transitions. [2021-08-27 16:01:11,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 16:01:11,225 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 70 states and 96 transitions. [2021-08-27 16:01:11,231 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 41 [2021-08-27 16:01:11,235 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 70 states to 63 states and 88 transitions. [2021-08-27 16:01:11,236 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 63 [2021-08-27 16:01:11,236 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 63 [2021-08-27 16:01:11,237 INFO L73 IsDeterministic]: Start isDeterministic. Operand 63 states and 88 transitions. [2021-08-27 16:01:11,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 16:01:11,237 INFO L681 BuchiCegarLoop]: Abstraction has 63 states and 88 transitions. [2021-08-27 16:01:11,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states and 88 transitions. [2021-08-27 16:01:11,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2021-08-27 16:01:11,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 63 states have (on average 1.3968253968253967) internal successors, (88), 62 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 16:01:11,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 88 transitions. [2021-08-27 16:01:11,259 INFO L704 BuchiCegarLoop]: Abstraction has 63 states and 88 transitions. [2021-08-27 16:01:11,259 INFO L587 BuchiCegarLoop]: Abstraction has 63 states and 88 transitions. [2021-08-27 16:01:11,259 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 16:01:11,260 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 63 states and 88 transitions. [2021-08-27 16:01:11,261 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 41 [2021-08-27 16:01:11,261 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:01:11,261 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:01:11,261 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:01:11,262 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:01:11,262 INFO L791 eck$LassoCheckResult]: Stem: 208#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(21);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(21);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(25);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(110, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 3 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(80, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(117, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(109, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(112, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(110, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 3 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(32, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 205#L-1 havoc main_#res;havoc main_#t~ret18, main_~retValue_acc~4, main_~tmp~0;havoc main_~retValue_acc~4;havoc main_~tmp~0; 200#L162 havoc valid_product_#res;havoc valid_product_~retValue_acc~3;havoc valid_product_~retValue_acc~3;valid_product_~retValue_acc~3 := 1;valid_product_#res := valid_product_~retValue_acc~3; 201#L170 main_#t~ret18 := valid_product_#res;main_~tmp~0 := main_#t~ret18;havoc main_#t~ret18; 209#L262 assume 0 != main_~tmp~0; 210#L236 ~methAndRunningLastTime~0 := 0; 191#L283 havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 180#L294-1 [2021-08-27 16:01:11,262 INFO L793 eck$LassoCheckResult]: Loop: 180#L294-1 assume !false; 181#L694 assume test_~splverifierCounter~0 < 4; 185#L695 test_~tmp~5 := test_#t~nondet56;havoc test_#t~nondet56; 162#L703 assume !(0 != test_~tmp~5); 164#L703-1 test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 199#L713 assume !(0 != test_~tmp___0~1); 170#L713-1 test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 171#L723 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 151#L731-2 assume !(0 != ~pumpRunning~0); 152#L759 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret60, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 198#L791 assume !(0 != ~pumpRunning~0); 158#L766 havoc __utac_acc__Specification2_spec__2_#t~ret19, __utac_acc__Specification2_spec__2_#t~ret20, __utac_acc__Specification2_spec__2_~tmp~1, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 161#L91-1 __utac_acc__Specification2_spec__2_#t~ret19 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~1 := __utac_acc__Specification2_spec__2_#t~ret19;havoc __utac_acc__Specification2_spec__2_#t~ret19; 202#L294 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1);~methAndRunningLastTime~0 := 0; 180#L294-1 [2021-08-27 16:01:11,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:01:11,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-08-27 16:01:11,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:01:11,263 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341612164] [2021-08-27 16:01:11,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:01:11,264 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:01:11,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:01:11,309 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:01:11,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:01:11,388 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:01:11,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:01:11,389 INFO L82 PathProgramCache]: Analyzing trace with hash 82951361, now seen corresponding path program 1 times [2021-08-27 16:01:11,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:01:11,390 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45129927] [2021-08-27 16:01:11,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:01:11,390 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:01:11,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:01:11,395 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:01:11,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:01:11,402 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:01:11,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:01:11,403 INFO L82 PathProgramCache]: Analyzing trace with hash 145339271, now seen corresponding path program 1 times [2021-08-27 16:01:11,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:01:11,403 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775589381] [2021-08-27 16:01:11,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:01:11,404 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:01:11,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:01:11,439 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:01:11,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:01:11,484 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:01:54,618 WARN L207 SmtUtils]: Spent 42.97 s on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-08-27 16:02:38,252 WARN L207 SmtUtils]: Spent 20.84 s on a formula simplification that was a NOOP. DAG size: 435 [2021-08-27 16:02:38,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 04:02:38 BoogieIcfgContainer [2021-08-27 16:02:38,340 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 16:02:38,340 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 16:02:38,340 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 16:02:38,341 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 16:02:38,341 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:01:10" (3/4) ... [2021-08-27 16:02:38,343 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-08-27 16:02:38,376 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-27 16:02:38,376 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 16:02:38,377 INFO L168 Benchmark]: Toolchain (without parser) took 89181.78 ms. Allocated memory was 54.5 MB in the beginning and 100.7 MB in the end (delta: 46.1 MB). Free memory was 32.1 MB in the beginning and 58.1 MB in the end (delta: -26.0 MB). Peak memory consumption was 19.2 MB. Max. memory is 16.1 GB. [2021-08-27 16:02:38,378 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 54.5 MB. Free memory was 36.1 MB in the beginning and 36.1 MB in the end (delta: 37.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 16:02:38,378 INFO L168 Benchmark]: CACSL2BoogieTranslator took 464.22 ms. Allocated memory was 54.5 MB in the beginning and 69.2 MB in the end (delta: 14.7 MB). Free memory was 31.9 MB in the beginning and 47.1 MB in the end (delta: -15.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-08-27 16:02:38,378 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.17 ms. Allocated memory is still 69.2 MB. Free memory was 46.9 MB in the beginning and 44.1 MB in the end (delta: 2.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 16:02:38,379 INFO L168 Benchmark]: Boogie Preprocessor took 56.98 ms. Allocated memory is still 69.2 MB. Free memory was 44.1 MB in the beginning and 42.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-27 16:02:38,379 INFO L168 Benchmark]: RCFGBuilder took 781.50 ms. Allocated memory is still 69.2 MB. Free memory was 42.0 MB in the beginning and 45.1 MB in the end (delta: -3.1 MB). Peak memory consumption was 16.7 MB. Max. memory is 16.1 GB. [2021-08-27 16:02:38,380 INFO L168 Benchmark]: BuchiAutomizer took 87762.26 ms. Allocated memory was 69.2 MB in the beginning and 100.7 MB in the end (delta: 31.5 MB). Free memory was 45.1 MB in the beginning and 60.2 MB in the end (delta: -15.1 MB). Peak memory consumption was 59.7 MB. Max. memory is 16.1 GB. [2021-08-27 16:02:38,380 INFO L168 Benchmark]: Witness Printer took 36.27 ms. Allocated memory is still 100.7 MB. Free memory was 60.2 MB in the beginning and 58.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:02:38,382 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 54.5 MB. Free memory was 36.1 MB in the beginning and 36.1 MB in the end (delta: 37.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 464.22 ms. Allocated memory was 54.5 MB in the beginning and 69.2 MB in the end (delta: 14.7 MB). Free memory was 31.9 MB in the beginning and 47.1 MB in the end (delta: -15.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 73.17 ms. Allocated memory is still 69.2 MB. Free memory was 46.9 MB in the beginning and 44.1 MB in the end (delta: 2.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 56.98 ms. Allocated memory is still 69.2 MB. Free memory was 44.1 MB in the beginning and 42.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 781.50 ms. Allocated memory is still 69.2 MB. Free memory was 42.0 MB in the beginning and 45.1 MB in the end (delta: -3.1 MB). Peak memory consumption was 16.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 87762.26 ms. Allocated memory was 69.2 MB in the beginning and 100.7 MB in the end (delta: 31.5 MB). Free memory was 45.1 MB in the beginning and 60.2 MB in the end (delta: -15.1 MB). Peak memory consumption was 59.7 MB. Max. memory is 16.1 GB. * Witness Printer took 36.27 ms. Allocated memory is still 100.7 MB. Free memory was 60.2 MB in the beginning and 58.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 63 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 87.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 87.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 11.3ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 63 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 93 SDtfs, 93 SDslu, 0 SDs, 0 SdLazy, 3 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.2ms Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 693]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=9641} State at position 1 is {NULL=0, retValue_acc=0, NULL=0, NULL=9642, NULL=9641, NULL=0, retValue_acc=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=9669, NULL=9660, methaneLevelCritical=0, NULL=9643, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4fd6265c=0, NULL=9662, tmp=0, NULL=9650, NULL=0, NULL=0, NULL=9668, tmp___1=0, NULL=0, NULL=0, NULL=0, NULL=9649, cleanupTimeShifts=4, NULL=9653, NULL=9657, NULL=9644, NULL=9666, NULL=0, systemActive=1, waterLevel=1, NULL=0, NULL=0, NULL=0, NULL=9648, NULL=0, NULL=9667, NULL=0, NULL=0, NULL=0, NULL=9646, \result=1, head=0, pumpRunning=0, tmp=1, NULL=9656, \result=0, NULL=9655, NULL=9664, NULL=9665, NULL=0, NULL=0, NULL=0, NULL=9659, tmp___0=0, retValue_acc=1, NULL=0, NULL=0, NULL=0, NULL=9647, NULL=0, tmp___2=70, tmp___0=0, splverifierCounter=0, NULL=0, methAndRunningLastTime=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ff99cd5=0, \result=0, NULL=9645, NULL=9663, NULL=9661, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@11be75f4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3302c5b4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@762311be=70, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@634317ca=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@53b98c6e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2e06d2a6=0, head=0, tmp=0, NULL=0, NULL=9651, tmp=0, NULL=9654, NULL=9652, NULL=0, NULL=9658} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L48] int waterLevel = 1; [L49] int methaneLevelCritical = 0; [L175] int cleanupTimeShifts = 4; [L277] int methAndRunningLastTime ; [L485] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L752] int pumpRunning = 0; [L753] int systemActive = 1; [L253] int retValue_acc ; [L254] int tmp ; [L166] int retValue_acc ; [L169] retValue_acc = 1 [L170] return (retValue_acc); [L260] tmp = valid_product() [L262] COND TRUE \read(tmp) [L282] methAndRunningLastTime = 0 [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) [L905] systemActive = 1 [L759] COND FALSE !(\read(pumpRunning)) [L766] COND TRUE \read(systemActive) [L788] int tmp ; [L791] COND FALSE !(\read(pumpRunning)) [L287] int tmp ; [L288] int tmp___0 ; [L87] int retValue_acc ; [L90] retValue_acc = methaneLevelCritical [L91] return (retValue_acc); [L292] tmp = isMethaneLevelCritical() [L294] COND FALSE !(\read(tmp)) [L310] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-08-27 16:02:38,436 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...