./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product45.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8d31f386 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_product45.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 9380fcd5e8279275d54611c820c997d6cd3c87ac ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-wip.dd.multireach-323-8d31f38 [2021-07-06 20:30:22,971 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-06 20:30:22,974 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-06 20:30:23,015 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-06 20:30:23,016 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-06 20:30:23,019 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-06 20:30:23,021 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-06 20:30:23,033 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-06 20:30:23,035 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-06 20:30:23,039 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-06 20:30:23,040 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-06 20:30:23,042 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-06 20:30:23,042 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-06 20:30:23,045 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-06 20:30:23,046 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-06 20:30:23,047 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-06 20:30:23,049 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-06 20:30:23,050 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-06 20:30:23,052 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-06 20:30:23,058 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-06 20:30:23,060 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-06 20:30:23,061 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-06 20:30:23,062 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-06 20:30:23,064 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-06 20:30:23,070 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-06 20:30:23,070 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-06 20:30:23,070 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-06 20:30:23,072 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-06 20:30:23,072 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-06 20:30:23,073 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-06 20:30:23,074 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-06 20:30:23,074 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-06 20:30:23,076 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-06 20:30:23,076 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-06 20:30:23,077 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-06 20:30:23,078 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-06 20:30:23,078 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-06 20:30:23,079 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-06 20:30:23,079 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-06 20:30:23,080 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-06 20:30:23,081 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-06 20:30:23,085 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-07-06 20:30:23,121 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-06 20:30:23,122 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-06 20:30:23,124 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-06 20:30:23,124 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-06 20:30:23,125 INFO L138 SettingsManager]: * Use SBE=true [2021-07-06 20:30:23,125 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-07-06 20:30:23,125 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-07-06 20:30:23,126 INFO L138 SettingsManager]: * Use old map elimination=false [2021-07-06 20:30:23,126 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-07-06 20:30:23,126 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-07-06 20:30:23,127 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-07-06 20:30:23,127 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-06 20:30:23,127 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-06 20:30:23,128 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-07-06 20:30:23,128 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-06 20:30:23,128 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-06 20:30:23,128 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-06 20:30:23,128 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-07-06 20:30:23,129 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-07-06 20:30:23,129 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-07-06 20:30:23,129 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-06 20:30:23,129 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-06 20:30:23,130 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-07-06 20:30:23,130 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-06 20:30:23,130 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-07-06 20:30:23,130 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-06 20:30:23,131 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-06 20:30:23,131 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-06 20:30:23,131 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-06 20:30:23,131 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-06 20:30:23,133 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-07-06 20:30:23,133 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9380fcd5e8279275d54611c820c997d6cd3c87ac [2021-07-06 20:30:23,472 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-06 20:30:23,498 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-06 20:30:23,501 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-06 20:30:23,502 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-06 20:30:23,502 INFO L275 PluginConnector]: CDTParser initialized [2021-07-06 20:30:23,503 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product45.cil.c [2021-07-06 20:30:23,569 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58ab16e97/318aae2b23d2408c92df371ac216a6d4/FLAGfe51fe2f9 [2021-07-06 20:30:24,051 INFO L306 CDTParser]: Found 1 translation units. [2021-07-06 20:30:24,052 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product45.cil.c [2021-07-06 20:30:24,064 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58ab16e97/318aae2b23d2408c92df371ac216a6d4/FLAGfe51fe2f9 [2021-07-06 20:30:24,376 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58ab16e97/318aae2b23d2408c92df371ac216a6d4 [2021-07-06 20:30:24,377 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-06 20:30:24,379 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-06 20:30:24,390 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-06 20:30:24,391 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-06 20:30:24,401 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-06 20:30:24,401 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:30:24" (1/1) ... [2021-07-06 20:30:24,402 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2046663f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:30:24, skipping insertion in model container [2021-07-06 20:30:24,402 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:30:24" (1/1) ... [2021-07-06 20:30:24,409 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-06 20:30:24,463 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-06 20:30:24,647 WARN L224 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_product45.cil.c[4942,4955] [2021-07-06 20:30:24,741 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 20:30:24,753 INFO L203 MainTranslator]: Completed pre-run [2021-07-06 20:30:24,789 WARN L224 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_product45.cil.c[4942,4955] [2021-07-06 20:30:24,840 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 20:30:24,878 INFO L208 MainTranslator]: Completed translation [2021-07-06 20:30:24,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:30:24 WrapperNode [2021-07-06 20:30:24,880 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-06 20:30:24,882 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-06 20:30:24,882 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-06 20:30:24,882 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-06 20:30:24,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:30:24" (1/1) ... [2021-07-06 20:30:24,910 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:30:24" (1/1) ... [2021-07-06 20:30:24,954 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-06 20:30:24,955 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-06 20:30:24,955 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-06 20:30:24,955 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-06 20:30:24,962 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:30:24" (1/1) ... [2021-07-06 20:30:24,962 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:30:24" (1/1) ... [2021-07-06 20:30:24,976 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:30:24" (1/1) ... [2021-07-06 20:30:24,983 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:30:24" (1/1) ... [2021-07-06 20:30:24,992 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:30:24" (1/1) ... [2021-07-06 20:30:25,009 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:30:24" (1/1) ... [2021-07-06 20:30:25,013 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:30:24" (1/1) ... [2021-07-06 20:30:25,032 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-06 20:30:25,033 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-06 20:30:25,033 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-06 20:30:25,033 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-06 20:30:25,034 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:30:24" (1/1) ... [2021-07-06 20:30:25,039 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 20:30:25,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 20:30:25,065 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) [2021-07-06 20:30:25,080 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 [2021-07-06 20:30:25,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-06 20:30:25,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-06 20:30:25,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-06 20:30:25,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-06 20:30:25,847 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-06 20:30:25,848 INFO L299 CfgBuilder]: Removed 192 assume(true) statements. [2021-07-06 20:30:25,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:30:25 BoogieIcfgContainer [2021-07-06 20:30:25,849 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-06 20:30:25,850 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-07-06 20:30:25,850 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-07-06 20:30:25,853 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-07-06 20:30:25,853 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:30:25,854 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.07 08:30:24" (1/3) ... [2021-07-06 20:30:25,854 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@682d2c26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 08:30:25, skipping insertion in model container [2021-07-06 20:30:25,855 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:30:25,855 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:30:24" (2/3) ... [2021-07-06 20:30:25,855 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@682d2c26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 08:30:25, skipping insertion in model container [2021-07-06 20:30:25,855 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:30:25,855 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:30:25" (3/3) ... [2021-07-06 20:30:25,856 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product45.cil.c [2021-07-06 20:30:25,890 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-07-06 20:30:25,890 INFO L360 BuchiCegarLoop]: Hoare is false [2021-07-06 20:30:25,891 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-07-06 20:30:25,891 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-06 20:30:25,891 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-06 20:30:25,891 INFO L364 BuchiCegarLoop]: Difference is false [2021-07-06 20:30:25,891 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-06 20:30:25,891 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-07-06 20:30:25,908 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 126 states, 125 states have (on average 1.512) internal successors, (189), 125 states have internal predecessors, (189), 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) [2021-07-06 20:30:25,939 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 81 [2021-07-06 20:30:25,939 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:30:25,940 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:30:25,946 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 20:30:25,947 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:30:25,947 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-07-06 20:30:25,949 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 126 states, 125 states have (on average 1.512) internal successors, (189), 125 states have internal predecessors, (189), 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) [2021-07-06 20:30:25,961 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 81 [2021-07-06 20:30:25,961 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:30:25,961 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:30:25,963 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 20:30:25,963 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:30:25,976 INFO L791 eck$LassoCheckResult]: Stem: 93#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~string16.base, #t~string16.offset := #Ultimate.allocOnStack(13);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(80, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(117, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(109, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(112, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(32, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string30.base, #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 1 + #t~string30.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(21);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(25);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(25);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(13);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string73.base, #t~string73.offset, 1);call write~init~int(77, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(101, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(116, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(104, #t~string73.base, 4 + #t~string73.offset, 1);call write~init~int(58, #t~string73.base, 5 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 6 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string75.base, #t~string75.offset, 1);call write~init~int(82, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(73, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(84, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 4 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string77.base, #t~string77.offset, 1);call write~init~int(75, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 17#L-1true havoc main_#res;havoc main_#t~ret69, main_~retValue_acc~6, main_~tmp~9;havoc main_~retValue_acc~6;havoc main_~tmp~9; 3#L932true havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 33#L940true main_#t~ret69 := valid_product_#res;main_~tmp~9 := main_#t~ret69;havoc main_#t~ret69; 51#L802true assume 0 != main_~tmp~9; 94#L776true havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 101#L699-1true [2021-07-06 20:30:25,977 INFO L793 eck$LassoCheckResult]: Loop: 101#L699-1true assume !false; 126#L57true assume test_~splverifierCounter~0 < 4; 75#L58true test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 98#L66true assume !(0 != test_~tmp~0); 96#L66-1true test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 21#L76true assume !(0 != test_~tmp___0~0); 19#L76-1true test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 68#L86true assume 0 != test_~tmp___2~0; 26#L92-2true assume !(0 != ~pumpRunning~0); 82#L127true assume !(0 != ~systemActive~0); 112#L134true havoc __utac_acc__Specification4_spec__1_#t~ret67, __utac_acc__Specification4_spec__1_#t~ret68, __utac_acc__Specification4_spec__1_~tmp~8, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~8;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 124#L891true __utac_acc__Specification4_spec__1_#t~ret67 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~8 := __utac_acc__Specification4_spec__1_#t~ret67;havoc __utac_acc__Specification4_spec__1_#t~ret67; 100#L699true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~8); 101#L699-1true [2021-07-06 20:30:25,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:30:25,983 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-07-06 20:30:25,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:30:25,991 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893083975] [2021-07-06 20:30:25,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:30:25,992 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:30:26,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:30:26,207 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:30:26,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:30:26,317 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:30:26,359 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:30:26,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:30:26,373 INFO L82 PathProgramCache]: Analyzing trace with hash -1679313406, now seen corresponding path program 1 times [2021-07-06 20:30:26,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:30:26,374 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516510401] [2021-07-06 20:30:26,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:30:26,375 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:30:26,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:30:26,382 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:30:26,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:30:26,392 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:30:26,399 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:30:26,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:30:26,402 INFO L82 PathProgramCache]: Analyzing trace with hash 34965532, now seen corresponding path program 1 times [2021-07-06 20:30:26,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:30:26,403 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542559010] [2021-07-06 20:30:26,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:30:26,403 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:30:26,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 20:30:26,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:30:26,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:30:26,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:30:26,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:30:26,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:30:26,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:30:26,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:30:26,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-06 20:30:26,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:30:26,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 20:30:26,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 20:30:26,568 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 20:30:26,568 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542559010] [2021-07-06 20:30:26,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542559010] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 20:30:26,569 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 20:30:26,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-06 20:30:26,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830625224] [2021-07-06 20:30:26,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:30:26,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-07-06 20:30:26,633 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 20:30:26,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-06 20:30:26,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-07-06 20:30:26,655 INFO L87 Difference]: Start difference. First operand has 126 states, 125 states have (on average 1.512) internal successors, (189), 125 states have internal predecessors, (189), 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 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 20:30:26,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 20:30:26,818 INFO L93 Difference]: Finished difference Result 126 states and 178 transitions. [2021-07-06 20:30:26,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-06 20:30:26,824 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 126 states and 178 transitions. [2021-07-06 20:30:26,826 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 79 [2021-07-06 20:30:26,830 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 126 states to 119 states and 171 transitions. [2021-07-06 20:30:26,831 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 119 [2021-07-06 20:30:26,831 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 119 [2021-07-06 20:30:26,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 119 states and 171 transitions. [2021-07-06 20:30:26,836 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-06 20:30:26,837 INFO L681 BuchiCegarLoop]: Abstraction has 119 states and 171 transitions. [2021-07-06 20:30:26,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states and 171 transitions. [2021-07-06 20:30:26,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2021-07-06 20:30:26,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 119 states have (on average 1.4369747899159664) internal successors, (171), 118 states have internal predecessors, (171), 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) [2021-07-06 20:30:26,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 171 transitions. [2021-07-06 20:30:26,872 INFO L704 BuchiCegarLoop]: Abstraction has 119 states and 171 transitions. [2021-07-06 20:30:26,873 INFO L587 BuchiCegarLoop]: Abstraction has 119 states and 171 transitions. [2021-07-06 20:30:26,873 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-07-06 20:30:26,873 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 119 states and 171 transitions. [2021-07-06 20:30:26,880 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 79 [2021-07-06 20:30:26,881 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:30:26,881 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:30:26,883 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 20:30:26,884 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:30:26,885 INFO L791 eck$LassoCheckResult]: Stem: 376#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~string16.base, #t~string16.offset := #Ultimate.allocOnStack(13);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(80, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(117, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(109, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(112, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(32, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string30.base, #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 1 + #t~string30.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(21);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(25);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(25);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(13);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string73.base, #t~string73.offset, 1);call write~init~int(77, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(101, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(116, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(104, #t~string73.base, 4 + #t~string73.offset, 1);call write~init~int(58, #t~string73.base, 5 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 6 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string75.base, #t~string75.offset, 1);call write~init~int(82, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(73, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(84, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 4 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string77.base, #t~string77.offset, 1);call write~init~int(75, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 294#L-1 havoc main_#res;havoc main_#t~ret69, main_~retValue_acc~6, main_~tmp~9;havoc main_~retValue_acc~6;havoc main_~tmp~9; 272#L932 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 273#L940 main_#t~ret69 := valid_product_#res;main_~tmp~9 := main_#t~ret69;havoc main_#t~ret69; 318#L802 assume 0 != main_~tmp~9; 337#L776 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 341#L699-1 [2021-07-06 20:30:26,887 INFO L793 eck$LassoCheckResult]: Loop: 341#L699-1 assume !false; 381#L57 assume test_~splverifierCounter~0 < 4; 367#L58 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 368#L66 assume !(0 != test_~tmp~0); 373#L66-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 301#L76 assume !(0 != test_~tmp___0~0); 297#L76-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 298#L86 assume 0 != test_~tmp___2~0; 308#L92-2 assume !(0 != ~pumpRunning~0); 284#L127 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret12, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 364#L185 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret11, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 366#L159-1 assume !(0 == ~pumpRunning~0); 336#L134 havoc __utac_acc__Specification4_spec__1_#t~ret67, __utac_acc__Specification4_spec__1_#t~ret68, __utac_acc__Specification4_spec__1_~tmp~8, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~8;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 387#L891 __utac_acc__Specification4_spec__1_#t~ret67 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~8 := __utac_acc__Specification4_spec__1_#t~ret67;havoc __utac_acc__Specification4_spec__1_#t~ret67; 379#L699 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~8); 341#L699-1 [2021-07-06 20:30:26,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:30:26,890 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-07-06 20:30:26,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:30:26,891 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819989055] [2021-07-06 20:30:26,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:30:26,893 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:30:26,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:30:26,933 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:30:26,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:30:26,985 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:30:27,010 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:30:27,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:30:27,011 INFO L82 PathProgramCache]: Analyzing trace with hash -1992761180, now seen corresponding path program 1 times [2021-07-06 20:30:27,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:30:27,011 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369488057] [2021-07-06 20:30:27,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:30:27,012 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:30:27,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 20:30:27,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:30:27,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 20:30:27,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:30:27,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:30:27,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:30:27,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 20:30:27,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 20:30:27,027 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 20:30:27,027 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369488057] [2021-07-06 20:30:27,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369488057] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 20:30:27,027 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 20:30:27,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-06 20:30:27,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407763065] [2021-07-06 20:30:27,028 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-07-06 20:30:27,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 20:30:27,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-06 20:30:27,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 20:30:27,029 INFO L87 Difference]: Start difference. First operand 119 states and 171 transitions. cyclomatic complexity: 54 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2021-07-06 20:30:27,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 20:30:27,110 INFO L93 Difference]: Finished difference Result 160 states and 219 transitions. [2021-07-06 20:30:27,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-06 20:30:27,111 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 160 states and 219 transitions. [2021-07-06 20:30:27,116 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 110 [2021-07-06 20:30:27,121 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 160 states to 160 states and 219 transitions. [2021-07-06 20:30:27,122 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 160 [2021-07-06 20:30:27,123 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 160 [2021-07-06 20:30:27,124 INFO L73 IsDeterministic]: Start isDeterministic. Operand 160 states and 219 transitions. [2021-07-06 20:30:27,129 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-06 20:30:27,129 INFO L681 BuchiCegarLoop]: Abstraction has 160 states and 219 transitions. [2021-07-06 20:30:27,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states and 219 transitions. [2021-07-06 20:30:27,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2021-07-06 20:30:27,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 160 states have (on average 1.36875) internal successors, (219), 159 states have internal predecessors, (219), 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) [2021-07-06 20:30:27,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 219 transitions. [2021-07-06 20:30:27,141 INFO L704 BuchiCegarLoop]: Abstraction has 160 states and 219 transitions. [2021-07-06 20:30:27,141 INFO L587 BuchiCegarLoop]: Abstraction has 160 states and 219 transitions. [2021-07-06 20:30:27,141 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-07-06 20:30:27,141 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 160 states and 219 transitions. [2021-07-06 20:30:27,143 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 110 [2021-07-06 20:30:27,143 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:30:27,143 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:30:27,144 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 20:30:27,144 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:30:27,145 INFO L791 eck$LassoCheckResult]: Stem: 665#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~string16.base, #t~string16.offset := #Ultimate.allocOnStack(13);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(80, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(117, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(109, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(112, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(32, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string30.base, #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 1 + #t~string30.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(21);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(25);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(25);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(13);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string73.base, #t~string73.offset, 1);call write~init~int(77, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(101, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(116, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(104, #t~string73.base, 4 + #t~string73.offset, 1);call write~init~int(58, #t~string73.base, 5 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 6 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string75.base, #t~string75.offset, 1);call write~init~int(82, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(73, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(84, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 4 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string77.base, #t~string77.offset, 1);call write~init~int(75, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 579#L-1 havoc main_#res;havoc main_#t~ret69, main_~retValue_acc~6, main_~tmp~9;havoc main_~retValue_acc~6;havoc main_~tmp~9; 557#L932 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 558#L940 main_#t~ret69 := valid_product_#res;main_~tmp~9 := main_#t~ret69;havoc main_#t~ret69; 605#L802 assume 0 != main_~tmp~9; 626#L776 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 630#L699-1 [2021-07-06 20:30:27,145 INFO L793 eck$LassoCheckResult]: Loop: 630#L699-1 assume !false; 669#L57 assume test_~splverifierCounter~0 < 4; 681#L58 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 698#L66 assume !(0 != test_~tmp~0); 696#L66-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 695#L76 assume !(0 != test_~tmp___0~0); 693#L76-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 692#L86 assume 0 != test_~tmp___2~0; 593#L92-2 assume !(0 != ~pumpRunning~0); 594#L127 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret12, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 651#L185 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret11, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 652#L159-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret31, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~9;havoc isHighWaterSensorDry_~retValue_acc~9; 562#L899-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~9; 563#L904-1 isHighWaterLevel_#t~ret31 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret31;havoc isHighWaterLevel_#t~ret31; 599#L304-3 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~1 := 0; 600#L304-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 574#L310-1 processEnvironment__wrappee__methaneQuery_#t~ret11 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~1 := processEnvironment__wrappee__methaneQuery_#t~ret11;havoc processEnvironment__wrappee__methaneQuery_#t~ret11; 575#L163-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~1); 624#L134 havoc __utac_acc__Specification4_spec__1_#t~ret67, __utac_acc__Specification4_spec__1_#t~ret68, __utac_acc__Specification4_spec__1_~tmp~8, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~8;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 675#L891 __utac_acc__Specification4_spec__1_#t~ret67 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~8 := __utac_acc__Specification4_spec__1_#t~ret67;havoc __utac_acc__Specification4_spec__1_#t~ret67; 668#L699 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~8); 630#L699-1 [2021-07-06 20:30:27,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:30:27,146 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-07-06 20:30:27,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:30:27,146 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142863497] [2021-07-06 20:30:27,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:30:27,147 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:30:27,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:30:27,196 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:30:27,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:30:27,240 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:30:27,250 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:30:27,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:30:27,250 INFO L82 PathProgramCache]: Analyzing trace with hash 790147600, now seen corresponding path program 1 times [2021-07-06 20:30:27,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:30:27,251 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308610497] [2021-07-06 20:30:27,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:30:27,252 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:30:27,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:30:27,257 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:30:27,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:30:27,262 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:30:27,265 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:30:27,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:30:27,266 INFO L82 PathProgramCache]: Analyzing trace with hash 1246218794, now seen corresponding path program 1 times [2021-07-06 20:30:27,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:30:27,266 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045227865] [2021-07-06 20:30:27,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:30:27,267 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:30:27,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:30:27,304 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:30:27,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:30:27,332 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:30:27,344 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:30:27,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:30:27,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-07-06 20:31:07,741 WARN L205 SmtUtils]: Spent 40.26 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-07-06 20:31:07,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:31:07,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2127 [2021-07-06 20:31:27,856 WARN L205 SmtUtils]: Spent 20.04 s on a formula simplification that was a NOOP. DAG size: 433 [2021-07-06 20:31:27,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.07 08:31:27 BoogieIcfgContainer [2021-07-06 20:31:27,945 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-07-06 20:31:27,946 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-06 20:31:27,946 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-06 20:31:27,946 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-06 20:31:27,946 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:30:25" (3/4) ... [2021-07-06 20:31:27,949 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-07-06 20:31:28,003 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-06 20:31:28,005 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-06 20:31:28,007 INFO L168 Benchmark]: Toolchain (without parser) took 63627.62 ms. Allocated memory was 48.2 MB in the beginning and 86.0 MB in the end (delta: 37.7 MB). Free memory was 22.7 MB in the beginning and 47.0 MB in the end (delta: -24.3 MB). Peak memory consumption was 13.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:31:28,007 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 48.2 MB. Free memory was 30.0 MB in the beginning and 30.0 MB in the end (delta: 32.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 20:31:28,008 INFO L168 Benchmark]: CACSL2BoogieTranslator took 490.72 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 22.5 MB in the beginning and 30.4 MB in the end (delta: -7.9 MB). Peak memory consumption was 3.7 MB. Max. memory is 16.1 GB. [2021-07-06 20:31:28,008 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.35 ms. Allocated memory is still 58.7 MB. Free memory was 30.2 MB in the beginning and 40.1 MB in the end (delta: -9.9 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:31:28,008 INFO L168 Benchmark]: Boogie Preprocessor took 77.18 ms. Allocated memory is still 58.7 MB. Free memory was 40.1 MB in the beginning and 37.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:31:28,009 INFO L168 Benchmark]: RCFGBuilder took 816.69 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 37.4 MB in the beginning and 38.3 MB in the end (delta: -970.5 kB). Peak memory consumption was 19.8 MB. Max. memory is 16.1 GB. [2021-07-06 20:31:28,009 INFO L168 Benchmark]: BuchiAutomizer took 62095.15 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 37.9 MB in the beginning and 49.5 MB in the end (delta: -11.5 MB). Peak memory consumption was 36.6 MB. Max. memory is 16.1 GB. [2021-07-06 20:31:28,009 INFO L168 Benchmark]: Witness Printer took 60.01 ms. Allocated memory is still 86.0 MB. Free memory was 49.5 MB in the beginning and 47.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:31:28,011 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 48.2 MB. Free memory was 30.0 MB in the beginning and 30.0 MB in the end (delta: 32.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 490.72 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 22.5 MB in the beginning and 30.4 MB in the end (delta: -7.9 MB). Peak memory consumption was 3.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 72.35 ms. Allocated memory is still 58.7 MB. Free memory was 30.2 MB in the beginning and 40.1 MB in the end (delta: -9.9 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 77.18 ms. Allocated memory is still 58.7 MB. Free memory was 40.1 MB in the beginning and 37.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 816.69 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 37.4 MB in the beginning and 38.3 MB in the end (delta: -970.5 kB). Peak memory consumption was 19.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 62095.15 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 37.9 MB in the beginning and 49.5 MB in the end (delta: -11.5 MB). Peak memory consumption was 36.6 MB. Max. memory is 16.1 GB. * Witness Printer took 60.01 ms. Allocated memory is still 86.0 MB. Free memory was 49.5 MB in the beginning and 47.0 MB in the end (delta: 2.5 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 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 160 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 62.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 61.5s. Construction of modules took 0.1s. 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 35.4ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 160 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 329 SDtfs, 654 SDslu, 59 SDs, 0 SdLazy, 38 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 149.2ms Time 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: 56]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=16881} State at position 1 is {NULL=0, NULL=0, NULL=16893, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@332a56a7=60, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2fb012d5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1160dd8f=0, NULL=16881, NULL=16889, NULL=0, NULL=16886, NULL=16890, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@47be24b7=0, retValue_acc=1, retValue_acc=0, tmp___1=0, NULL=0, NULL=16902, cleanupTimeShifts=4, tmp=0, waterLevel=1, NULL=0, tmp___0=0, NULL=16883, \result=1, retValue_acc=1, head=0, pumpRunning=0, \result=1, NULL=16885, NULL=0, NULL=0, tmp=1, NULL=0, NULL=16887, retValue_acc=1, NULL=0, tmp=1, NULL=0, NULL=16909, NULL=16898, NULL=16888, NULL=16882, tmp=0, head=0, tmp=0, NULL=0, NULL=0, NULL=16903, tmp=1, NULL=16892, NULL=0, retValue_acc=0, NULL=0, NULL=16891, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@10c6f104=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@e38d645=0, tmp___0=0, NULL=0, NULL=16896, NULL=16900, tmp___0=0, NULL=16899, NULL=0, systemActive=1, \result=1, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7047466a=0, NULL=0, NULL=16907, NULL=16906, \result=0, NULL=16897, NULL=0, NULL=0, NULL=0, NULL=16908, NULL=16884, NULL=16905, tmp___2=60, splverifierCounter=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@313cc21a=0, NULL=16901, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2c4aee8e=0, NULL=0, NULL=0, NULL=16904, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@aef45b4=0, NULL=16895, NULL=16894} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L119] int pumpRunning = 0; [L120] int systemActive = 1; [L493] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L717] int cleanupTimeShifts = 4; [L816] int waterLevel = 1; [L817] int methaneLevelCritical = 0; [L793] int retValue_acc ; [L794] int tmp ; [L936] int retValue_acc ; [L939] retValue_acc = 1 [L940] return (retValue_acc); [L800] tmp = valid_product() [L802] COND TRUE \read(tmp) [L47] int splverifierCounter ; [L48] int tmp ; [L49] int tmp___0 ; [L50] int tmp___1 ; [L51] int tmp___2 ; [L54] splverifierCounter = 0 Loop: [L56] COND TRUE 1 [L58] COND TRUE splverifierCounter < 4 [L64] tmp = __VERIFIER_nondet_int() [L66] COND FALSE !(\read(tmp)) [L74] tmp___0 = __VERIFIER_nondet_int() [L76] COND FALSE !(\read(tmp___0)) [L84] tmp___2 = __VERIFIER_nondet_int() [L86] COND TRUE \read(tmp___2) [L127] COND FALSE !(\read(pumpRunning)) [L134] COND TRUE \read(systemActive) [L182] int tmp ; [L185] COND FALSE !(\read(pumpRunning)) [L156] int tmp ; [L159] COND TRUE ! pumpRunning [L296] int retValue_acc ; [L297] int tmp ; [L298] int tmp___0 ; [L896] int retValue_acc ; [L899] COND TRUE waterLevel < 2 [L900] retValue_acc = 1 [L901] return (retValue_acc); [L302] tmp = isHighWaterSensorDry() [L304] COND TRUE \read(tmp) [L305] tmp___0 = 0 [L309] retValue_acc = tmp___0 [L310] return (retValue_acc); [L161] tmp = isHighWaterLevel() [L163] COND FALSE !(\read(tmp)) [L692] int tmp ; [L693] int tmp___0 ; [L887] int retValue_acc ; [L890] retValue_acc = waterLevel [L891] return (retValue_acc); [L697] tmp = getWaterLevel() [L699] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-07-06 20:31:28,085 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...