./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product34.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version ff03de63 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_spec1_product34.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 b1a2a4f6154f8b607411cb85c1a9c20d409d0ca16407a9f3bb2fc8f7ede01236 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 22:33:01,152 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 22:33:01,176 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 22:33:01,194 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 22:33:01,195 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 22:33:01,196 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 22:33:01,196 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 22:33:01,198 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 22:33:01,199 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 22:33:01,199 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 22:33:01,200 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 22:33:01,201 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 22:33:01,201 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 22:33:01,202 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 22:33:01,203 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 22:33:01,204 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 22:33:01,204 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 22:33:01,205 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 22:33:01,206 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 22:33:01,208 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 22:33:01,209 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 22:33:01,210 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 22:33:01,210 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 22:33:01,211 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 22:33:01,213 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 22:33:01,213 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 22:33:01,213 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 22:33:01,214 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 22:33:01,215 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 22:33:01,215 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 22:33:01,215 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 22:33:01,216 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 22:33:01,217 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 22:33:01,218 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 22:33:01,219 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 22:33:01,220 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 22:33:01,220 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 22:33:01,220 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 22:33:01,220 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 22:33:01,223 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 22:33:01,224 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 22:33:01,224 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-21 22:33:01,251 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 22:33:01,253 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 22:33:01,254 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 22:33:01,254 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 22:33:01,256 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 22:33:01,256 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 22:33:01,256 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 22:33:01,256 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-21 22:33:01,256 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-21 22:33:01,257 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-21 22:33:01,257 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-21 22:33:01,257 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-21 22:33:01,257 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-21 22:33:01,258 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 22:33:01,258 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 22:33:01,258 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-21 22:33:01,258 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 22:33:01,258 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 22:33:01,258 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 22:33:01,259 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-21 22:33:01,259 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-21 22:33:01,259 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-21 22:33:01,259 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 22:33:01,259 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 22:33:01,259 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-21 22:33:01,259 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 22:33:01,260 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-21 22:33:01,260 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 22:33:01,260 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 22:33:01,260 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 22:33:01,260 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 22:33:01,260 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 22:33:01,261 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-21 22:33:01,262 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1a2a4f6154f8b607411cb85c1a9c20d409d0ca16407a9f3bb2fc8f7ede01236 [2021-12-21 22:33:01,433 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 22:33:01,447 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 22:33:01,449 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 22:33:01,449 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 22:33:01,450 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 22:33:01,450 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product34.cil.c [2021-12-21 22:33:01,493 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e8890b80/5fe1bc30d720417391ca6bee8f5e5219/FLAGbafed24c8 [2021-12-21 22:33:01,898 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 22:33:01,903 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product34.cil.c [2021-12-21 22:33:01,914 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e8890b80/5fe1bc30d720417391ca6bee8f5e5219/FLAGbafed24c8 [2021-12-21 22:33:01,923 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e8890b80/5fe1bc30d720417391ca6bee8f5e5219 [2021-12-21 22:33:01,925 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 22:33:01,926 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 22:33:01,927 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 22:33:01,927 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 22:33:01,929 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 22:33:01,930 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:33:01" (1/1) ... [2021-12-21 22:33:01,931 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@728acc48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:33:01, skipping insertion in model container [2021-12-21 22:33:01,931 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:33:01" (1/1) ... [2021-12-21 22:33:01,937 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 22:33:01,963 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 22:33:02,137 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product34.cil.c[12584,12597] [2021-12-21 22:33:02,174 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 22:33:02,187 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 22:33:02,235 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product34.cil.c[12584,12597] [2021-12-21 22:33:02,256 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 22:33:02,269 INFO L208 MainTranslator]: Completed translation [2021-12-21 22:33:02,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:33:02 WrapperNode [2021-12-21 22:33:02,270 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 22:33:02,271 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 22:33:02,271 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 22:33:02,271 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 22:33:02,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:33:02" (1/1) ... [2021-12-21 22:33:02,304 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:33:02" (1/1) ... [2021-12-21 22:33:02,336 INFO L137 Inliner]: procedures = 53, calls = 150, calls flagged for inlining = 47, calls inlined = 48, statements flattened = 392 [2021-12-21 22:33:02,338 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 22:33:02,338 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 22:33:02,338 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 22:33:02,339 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 22:33:02,344 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:33:02" (1/1) ... [2021-12-21 22:33:02,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:33:02" (1/1) ... [2021-12-21 22:33:02,347 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:33:02" (1/1) ... [2021-12-21 22:33:02,347 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:33:02" (1/1) ... [2021-12-21 22:33:02,351 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:33:02" (1/1) ... [2021-12-21 22:33:02,355 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:33:02" (1/1) ... [2021-12-21 22:33:02,356 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:33:02" (1/1) ... [2021-12-21 22:33:02,360 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 22:33:02,361 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 22:33:02,361 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 22:33:02,361 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 22:33:02,362 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:33:02" (1/1) ... [2021-12-21 22:33:02,368 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:33:02,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:33:02,399 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 22:33:02,413 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-21 22:33:02,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 22:33:02,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 22:33:02,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 22:33:02,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 22:33:02,471 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 22:33:02,472 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 22:33:02,693 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 22:33:02,698 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 22:33:02,698 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-21 22:33:02,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:33:02 BoogieIcfgContainer [2021-12-21 22:33:02,700 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 22:33:02,701 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-21 22:33:02,701 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-21 22:33:02,703 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-21 22:33:02,703 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:33:02,703 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.12 10:33:01" (1/3) ... [2021-12-21 22:33:02,704 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@69a4cac9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.12 10:33:02, skipping insertion in model container [2021-12-21 22:33:02,704 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:33:02,705 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:33:02" (2/3) ... [2021-12-21 22:33:02,705 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@69a4cac9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.12 10:33:02, skipping insertion in model container [2021-12-21 22:33:02,705 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:33:02,705 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:33:02" (3/3) ... [2021-12-21 22:33:02,706 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product34.cil.c [2021-12-21 22:33:02,734 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-21 22:33:02,734 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-21 22:33:02,734 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-21 22:33:02,734 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-21 22:33:02,735 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-21 22:33:02,735 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-21 22:33:02,735 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-21 22:33:02,735 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-21 22:33:02,748 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 106 states, 105 states have (on average 1.380952380952381) internal successors, (145), 105 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:33:02,770 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2021-12-21 22:33:02,771 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:33:02,771 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:33:02,775 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:33:02,775 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:33:02,775 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-21 22:33:02,776 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 106 states, 105 states have (on average 1.380952380952381) internal successors, (145), 105 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:33:02,780 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2021-12-21 22:33:02,780 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:33:02,780 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:33:02,780 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:33:02,781 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:33:02,784 INFO L791 eck$LassoCheckResult]: Stem: 97#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 38#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 61#L908true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 106#L901true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 95#L916true main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 49#L140true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 91#L113true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 24#L639-2true [2021-12-21 22:33:02,785 INFO L793 eck$LassoCheckResult]: Loop: 24#L639-2true assume !false; 30#L640true assume test_~splverifierCounter~0#1 < 4; 42#L641true test_~tmp~4#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 52#L649true assume !(0 != test_~tmp~4#1); 99#L649-2true test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 25#L659true assume !(0 != test_~tmp___0~0#1); 63#L659-2true test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 89#L669true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 107#L856true assume { :end_inline_startSystem } true; 55#L677-2true assume { :begin_inline_timeShift } true; 65#L707true assume !(0 != ~pumpRunning~0); 93#L707-2true assume !(0 != ~systemActive~0); 21#L714-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_#t~ret49#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~7#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 58#L577true __utac_acc__Specification1_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~7#1 := __utac_acc__Specification1_spec__1_#t~ret48#1;havoc __utac_acc__Specification1_spec__1_#t~ret48#1; 26#L868true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7#1); 72#L868-1true assume { :end_inline___utac_acc__Specification1_spec__1 } true; 19#L724true assume { :end_inline_timeShift } true; 24#L639-2true [2021-12-21 22:33:02,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:33:02,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2021-12-21 22:33:02,795 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:33:02,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757336201] [2021-12-21 22:33:02,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:33:02,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:33:02,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:33:02,913 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:33:02,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:33:02,979 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:33:02,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:33:02,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1295146433, now seen corresponding path program 1 times [2021-12-21 22:33:02,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:33:02,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607258971] [2021-12-21 22:33:02,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:33:02,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:33:03,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:33:03,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:33:03,065 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 22:33:03,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607258971] [2021-12-21 22:33:03,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607258971] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 22:33:03,066 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 22:33:03,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 22:33:03,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973581594] [2021-12-21 22:33:03,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 22:33:03,071 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-21 22:33:03,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 22:33:03,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 22:33:03,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 22:33:03,102 INFO L87 Difference]: Start difference. First operand has 106 states, 105 states have (on average 1.380952380952381) internal successors, (145), 105 states have internal predecessors, (145), 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 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:33:03,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 22:33:03,152 INFO L93 Difference]: Finished difference Result 103 states and 132 transitions. [2021-12-21 22:33:03,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 22:33:03,159 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 103 states and 132 transitions. [2021-12-21 22:33:03,165 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 63 [2021-12-21 22:33:03,172 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 103 states to 93 states and 121 transitions. [2021-12-21 22:33:03,173 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 93 [2021-12-21 22:33:03,174 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 93 [2021-12-21 22:33:03,175 INFO L73 IsDeterministic]: Start isDeterministic. Operand 93 states and 121 transitions. [2021-12-21 22:33:03,175 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 22:33:03,175 INFO L681 BuchiCegarLoop]: Abstraction has 93 states and 121 transitions. [2021-12-21 22:33:03,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states and 121 transitions. [2021-12-21 22:33:03,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2021-12-21 22:33:03,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 93 states have (on average 1.3010752688172043) internal successors, (121), 92 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:33:03,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 121 transitions. [2021-12-21 22:33:03,203 INFO L704 BuchiCegarLoop]: Abstraction has 93 states and 121 transitions. [2021-12-21 22:33:03,203 INFO L587 BuchiCegarLoop]: Abstraction has 93 states and 121 transitions. [2021-12-21 22:33:03,204 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-21 22:33:03,204 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 93 states and 121 transitions. [2021-12-21 22:33:03,207 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 63 [2021-12-21 22:33:03,208 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:33:03,208 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:33:03,208 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:33:03,208 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:33:03,209 INFO L791 eck$LassoCheckResult]: Stem: 306#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 294#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 232#L908 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 233#L901 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 303#L916 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 304#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 302#L113 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 265#L639-2 [2021-12-21 22:33:03,209 INFO L793 eck$LassoCheckResult]: Loop: 265#L639-2 assume !false; 273#L640 assume test_~splverifierCounter~0#1 < 4; 284#L641 test_~tmp~4#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 297#L649 assume !(0 != test_~tmp~4#1); 308#L649-2 test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 272#L659 assume !(0 != test_~tmp___0~0#1); 236#L659-2 test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 237#L669 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 300#L856 assume { :end_inline_startSystem } true; 239#L677-2 assume { :begin_inline_timeShift } true; 240#L707 assume !(0 != ~pumpRunning~0); 241#L707-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 218#L739 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 219#L731-1 assume { :end_inline_processEnvironment__wrappee__base } true; 264#L739-1 assume { :end_inline_processEnvironment } true; 268#L714-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_#t~ret49#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~7#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 269#L577 __utac_acc__Specification1_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~7#1 := __utac_acc__Specification1_spec__1_#t~ret48#1;havoc __utac_acc__Specification1_spec__1_#t~ret48#1; 276#L868 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7#1); 260#L868-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 261#L724 assume { :end_inline_timeShift } true; 265#L639-2 [2021-12-21 22:33:03,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:33:03,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2021-12-21 22:33:03,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:33:03,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587939116] [2021-12-21 22:33:03,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:33:03,211 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:33:03,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:33:03,244 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:33:03,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:33:03,262 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:33:03,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:33:03,265 INFO L85 PathProgramCache]: Analyzing trace with hash -897325560, now seen corresponding path program 1 times [2021-12-21 22:33:03,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:33:03,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493241660] [2021-12-21 22:33:03,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:33:03,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:33:03,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:33:03,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:33:03,296 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 22:33:03,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493241660] [2021-12-21 22:33:03,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493241660] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 22:33:03,297 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 22:33:03,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 22:33:03,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135487190] [2021-12-21 22:33:03,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 22:33:03,298 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-21 22:33:03,298 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 22:33:03,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 22:33:03,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 22:33:03,300 INFO L87 Difference]: Start difference. First operand 93 states and 121 transitions. cyclomatic complexity: 30 Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:33:03,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 22:33:03,352 INFO L93 Difference]: Finished difference Result 146 states and 184 transitions. [2021-12-21 22:33:03,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 22:33:03,355 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 146 states and 184 transitions. [2021-12-21 22:33:03,356 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 104 [2021-12-21 22:33:03,360 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 146 states to 146 states and 184 transitions. [2021-12-21 22:33:03,360 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 146 [2021-12-21 22:33:03,361 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 146 [2021-12-21 22:33:03,361 INFO L73 IsDeterministic]: Start isDeterministic. Operand 146 states and 184 transitions. [2021-12-21 22:33:03,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 22:33:03,362 INFO L681 BuchiCegarLoop]: Abstraction has 146 states and 184 transitions. [2021-12-21 22:33:03,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states and 184 transitions. [2021-12-21 22:33:03,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2021-12-21 22:33:03,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 146 states have (on average 1.2602739726027397) internal successors, (184), 145 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:33:03,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 184 transitions. [2021-12-21 22:33:03,367 INFO L704 BuchiCegarLoop]: Abstraction has 146 states and 184 transitions. [2021-12-21 22:33:03,367 INFO L587 BuchiCegarLoop]: Abstraction has 146 states and 184 transitions. [2021-12-21 22:33:03,367 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-21 22:33:03,367 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 146 states and 184 transitions. [2021-12-21 22:33:03,368 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 104 [2021-12-21 22:33:03,368 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:33:03,368 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:33:03,369 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:33:03,369 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:33:03,369 INFO L791 eck$LassoCheckResult]: Stem: 559#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 542#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 475#L908 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 476#L901 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 557#L916 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 558#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 551#L113 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 509#L639-2 [2021-12-21 22:33:03,369 INFO L793 eck$LassoCheckResult]: Loop: 509#L639-2 assume !false; 517#L640 assume test_~splverifierCounter~0#1 < 4; 530#L641 test_~tmp~4#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 546#L649 assume !(0 != test_~tmp~4#1); 566#L649-2 test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 518#L659 assume !(0 != test_~tmp___0~0#1); 504#L659-2 test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 548#L669 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 481#L677 assume 0 != test_~tmp___1~0#1; 482#L677-2 assume { :begin_inline_timeShift } true; 483#L707 assume !(0 != ~pumpRunning~0); 484#L707-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 463#L739 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~9#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 464#L617 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 519#L622 isHighWaterLevel_#t~ret47#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret47#1;havoc isHighWaterLevel_#t~ret47#1; 490#L841 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~1#1 := 0; 491#L841-2 isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; 540#L847 processEnvironment_#t~ret37#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~5#1 := processEnvironment_#t~ret37#1;havoc processEnvironment_#t~ret37#1; 541#L743 assume !(0 != processEnvironment_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 524#L731 assume { :end_inline_processEnvironment__wrappee__base } true; 525#L739-1 assume { :end_inline_processEnvironment } true; 512#L714-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_#t~ret49#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~7#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 513#L577 __utac_acc__Specification1_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~7#1 := __utac_acc__Specification1_spec__1_#t~ret48#1;havoc __utac_acc__Specification1_spec__1_#t~ret48#1; 521#L868 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7#1); 503#L868-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 505#L724 assume { :end_inline_timeShift } true; 509#L639-2 [2021-12-21 22:33:03,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:33:03,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2021-12-21 22:33:03,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:33:03,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081604841] [2021-12-21 22:33:03,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:33:03,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:33:03,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:33:03,407 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:33:03,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:33:03,425 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:33:03,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:33:03,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1606746257, now seen corresponding path program 1 times [2021-12-21 22:33:03,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:33:03,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856343123] [2021-12-21 22:33:03,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:33:03,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:33:03,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:33:03,441 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:33:03,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:33:03,453 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:33:03,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:33:03,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1733187533, now seen corresponding path program 1 times [2021-12-21 22:33:03,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:33:03,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143964453] [2021-12-21 22:33:03,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:33:03,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:33:03,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:33:03,479 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:33:03,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:33:03,501 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:33:05,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.12 10:33:05 BoogieIcfgContainer [2021-12-21 22:33:05,969 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-21 22:33:05,970 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 22:33:05,970 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 22:33:05,970 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 22:33:05,971 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:33:02" (3/4) ... [2021-12-21 22:33:05,973 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-21 22:33:06,006 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-21 22:33:06,007 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 22:33:06,007 INFO L158 Benchmark]: Toolchain (without parser) took 4081.39ms. Allocated memory was 98.6MB in the beginning and 178.3MB in the end (delta: 79.7MB). Free memory was 68.7MB in the beginning and 120.4MB in the end (delta: -51.7MB). Peak memory consumption was 27.2MB. Max. memory is 16.1GB. [2021-12-21 22:33:06,007 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 98.6MB. Free memory is still 56.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 22:33:06,008 INFO L158 Benchmark]: CACSL2BoogieTranslator took 343.37ms. Allocated memory is still 98.6MB. Free memory was 68.7MB in the beginning and 67.2MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-21 22:33:06,008 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.79ms. Allocated memory is still 98.6MB. Free memory was 67.2MB in the beginning and 64.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 22:33:06,008 INFO L158 Benchmark]: Boogie Preprocessor took 21.79ms. Allocated memory is still 98.6MB. Free memory was 64.5MB in the beginning and 62.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 22:33:06,009 INFO L158 Benchmark]: RCFGBuilder took 339.38ms. Allocated memory was 98.6MB in the beginning and 130.0MB in the end (delta: 31.5MB). Free memory was 62.7MB in the beginning and 105.0MB in the end (delta: -42.3MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. [2021-12-21 22:33:06,009 INFO L158 Benchmark]: BuchiAutomizer took 3268.91ms. Allocated memory was 130.0MB in the beginning and 178.3MB in the end (delta: 48.2MB). Free memory was 105.0MB in the beginning and 123.5MB in the end (delta: -18.5MB). Peak memory consumption was 94.1MB. Max. memory is 16.1GB. [2021-12-21 22:33:06,009 INFO L158 Benchmark]: Witness Printer took 36.77ms. Allocated memory is still 178.3MB. Free memory was 123.5MB in the beginning and 120.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-21 22:33:06,011 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 98.6MB. Free memory is still 56.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 343.37ms. Allocated memory is still 98.6MB. Free memory was 68.7MB in the beginning and 67.2MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.79ms. Allocated memory is still 98.6MB. Free memory was 67.2MB in the beginning and 64.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.79ms. Allocated memory is still 98.6MB. Free memory was 64.5MB in the beginning and 62.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 339.38ms. Allocated memory was 98.6MB in the beginning and 130.0MB in the end (delta: 31.5MB). Free memory was 62.7MB in the beginning and 105.0MB in the end (delta: -42.3MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. * BuchiAutomizer took 3268.91ms. Allocated memory was 130.0MB in the beginning and 178.3MB in the end (delta: 48.2MB). Free memory was 105.0MB in the beginning and 123.5MB in the end (delta: -18.5MB). Peak memory consumption was 94.1MB. Max. memory is 16.1GB. * Witness Printer took 36.77ms. Allocated memory is still 178.3MB. Free memory was 123.5MB in the beginning and 120.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 3 locations. The remainder module has 146 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 146 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 220 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 220 mSDsluCounter, 342 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 69 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 24 IncrementalHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 273 mSDtfsCounter, 24 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 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: 639]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, NULL=0, tmp___0=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@56159dd5=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@8402521=0, retValue_acc=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3bbb8f3b=0, NULL=1, tmp___0=0, methaneLevelCritical=0, retValue_acc=1, retValue_acc=0, retValue_acc=1, \result=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7c246239=29, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3abcfaad=0, tmp=1, tmp___2=0, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@76e78c97=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@29ab853a=0, tmp=1, \result=0, tmp=0, head=0, tmp___1=29, NULL=0, waterLevel=1, systemActive=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@216b1674=0, tmp=0, tmp=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4ea86325=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 639]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int cleanupTimeShifts = 4; [L323] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L534] int waterLevel = 1; [L535] int methaneLevelCritical = 0; [L699] int pumpRunning = 0; [L700] int systemActive = 1; [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L912] int retValue_acc ; [L915] retValue_acc = 1 [L916] return (retValue_acc); [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L630] int splverifierCounter ; [L631] int tmp ; [L632] int tmp___0 ; [L633] int tmp___1 ; [L634] int tmp___2 ; [L637] splverifierCounter = 0 Loop: [L639] COND TRUE 1 [L641] COND TRUE splverifierCounter < 4 [L647] tmp = __VERIFIER_nondet_int() [L649] COND FALSE !(\read(tmp)) [L657] tmp___0 = __VERIFIER_nondet_int() [L659] COND FALSE !(\read(tmp___0)) [L667] tmp___2 = __VERIFIER_nondet_int() [L669] COND FALSE !(\read(tmp___2)) [L675] tmp___1 = __VERIFIER_nondet_int() [L677] COND TRUE \read(tmp___1) [L684] CALL timeShift() [L707] COND FALSE !(\read(pumpRunning)) [L714] COND TRUE \read(systemActive) [L716] CALL processEnvironment() [L736] int tmp ; [L739] COND TRUE ! pumpRunning [L741] CALL, EXPR isHighWaterLevel() [L833] int retValue_acc ; [L834] int tmp ; [L835] int tmp___0 ; [L839] CALL, EXPR isHighWaterSensorDry() [L614] int retValue_acc ; [L617] COND TRUE waterLevel < 2 [L618] retValue_acc = 1 [L619] return (retValue_acc); [L839] RET, EXPR isHighWaterSensorDry() [L839] tmp = isHighWaterSensorDry() [L841] COND TRUE \read(tmp) [L842] tmp___0 = 0 [L846] retValue_acc = tmp___0 [L847] return (retValue_acc); [L741] RET, EXPR isHighWaterLevel() [L741] tmp = isHighWaterLevel() [L743] COND FALSE !(\read(tmp)) [L749] FCALL processEnvironment__wrappee__base() [L716] RET processEnvironment() [L722] CALL __utac_acc__Specification1_spec__1() [L861] int tmp ; [L862] int tmp___0 ; [L866] CALL, EXPR isMethaneLevelCritical() [L573] int retValue_acc ; [L576] retValue_acc = methaneLevelCritical [L577] return (retValue_acc); [L866] RET, EXPR isMethaneLevelCritical() [L866] tmp = isMethaneLevelCritical() [L868] COND FALSE !(\read(tmp)) [L722] RET __utac_acc__Specification1_spec__1() [L684] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-21 22:33:06,048 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)