./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product16.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 20ed64ec Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec5_product16.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 39eaf5a35c9a0b00068a6452bd8f9de288aeab79 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 16:22:02,057 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 16:22:02,059 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 16:22:02,102 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 16:22:02,102 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 16:22:02,106 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 16:22:02,107 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 16:22:02,113 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 16:22:02,115 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 16:22:02,120 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 16:22:02,121 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 16:22:02,125 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 16:22:02,126 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 16:22:02,128 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 16:22:02,129 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 16:22:02,131 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 16:22:02,134 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 16:22:02,135 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 16:22:02,136 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 16:22:02,139 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 16:22:02,143 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 16:22:02,144 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 16:22:02,145 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 16:22:02,146 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 16:22:02,151 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 16:22:02,151 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 16:22:02,151 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 16:22:02,153 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 16:22:02,153 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 16:22:02,154 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 16:22:02,154 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 16:22:02,155 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 16:22:02,156 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 16:22:02,157 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 16:22:02,158 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 16:22:02,158 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 16:22:02,159 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 16:22:02,159 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 16:22:02,159 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 16:22:02,161 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 16:22:02,161 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 16:22:02,162 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-27 16:22:02,196 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 16:22:02,197 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 16:22:02,198 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 16:22:02,198 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 16:22:02,200 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 16:22:02,200 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 16:22:02,200 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 16:22:02,201 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 16:22:02,201 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 16:22:02,201 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 16:22:02,202 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 16:22:02,202 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 16:22:02,202 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 16:22:02,202 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 16:22:02,202 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 16:22:02,203 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 16:22:02,203 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 16:22:02,203 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 16:22:02,203 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 16:22:02,203 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 16:22:02,203 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 16:22:02,204 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 16:22:02,204 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 16:22:02,204 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 16:22:02,204 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 16:22:02,204 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 16:22:02,205 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 16:22:02,205 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 16:22:02,205 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 16:22:02,205 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 16:22:02,205 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 16:22:02,206 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 16:22:02,207 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 16:22:02,207 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 39eaf5a35c9a0b00068a6452bd8f9de288aeab79 [2021-08-27 16:22:02,527 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 16:22:02,546 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 16:22:02,547 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 16:22:02,548 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 16:22:02,549 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 16:22:02,550 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product16.cil.c [2021-08-27 16:22:02,605 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61705d9ef/02bafc7e793c496b97257850e2808190/FLAG47961b10c [2021-08-27 16:22:03,119 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 16:22:03,120 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product16.cil.c [2021-08-27 16:22:03,128 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61705d9ef/02bafc7e793c496b97257850e2808190/FLAG47961b10c [2021-08-27 16:22:03,589 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61705d9ef/02bafc7e793c496b97257850e2808190 [2021-08-27 16:22:03,591 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 16:22:03,593 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 16:22:03,594 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 16:22:03,594 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 16:22:03,613 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 16:22:03,614 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:22:03" (1/1) ... [2021-08-27 16:22:03,615 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3221c07a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:22:03, skipping insertion in model container [2021-08-27 16:22:03,615 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:22:03" (1/1) ... [2021-08-27 16:22:03,621 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 16:22:03,649 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 16:22:03,845 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product16.cil.c[13509,13522] [2021-08-27 16:22:03,875 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 16:22:03,896 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 16:22:03,959 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product16.cil.c[13509,13522] [2021-08-27 16:22:03,971 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 16:22:03,990 INFO L208 MainTranslator]: Completed translation [2021-08-27 16:22:03,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:22:03 WrapperNode [2021-08-27 16:22:03,991 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 16:22:03,992 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 16:22:03,992 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 16:22:03,993 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 16:22:03,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:22:03" (1/1) ... [2021-08-27 16:22:04,028 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:22:03" (1/1) ... [2021-08-27 16:22:04,059 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 16:22:04,060 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 16:22:04,060 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 16:22:04,060 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 16:22:04,067 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:22:03" (1/1) ... [2021-08-27 16:22:04,067 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:22:03" (1/1) ... [2021-08-27 16:22:04,069 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:22:03" (1/1) ... [2021-08-27 16:22:04,070 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:22:03" (1/1) ... [2021-08-27 16:22:04,077 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:22:03" (1/1) ... [2021-08-27 16:22:04,082 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:22:03" (1/1) ... [2021-08-27 16:22:04,083 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:22:03" (1/1) ... [2021-08-27 16:22:04,086 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 16:22:04,086 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 16:22:04,087 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 16:22:04,087 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 16:22:04,087 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:22:03" (1/1) ... [2021-08-27 16:22:04,097 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:22:04,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:22:04,112 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 16:22:04,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-08-27 16:22:04,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 16:22:04,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 16:22:04,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 16:22:04,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 16:22:04,967 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 16:22:04,968 INFO L299 CfgBuilder]: Removed 116 assume(true) statements. [2021-08-27 16:22:04,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:22:04 BoogieIcfgContainer [2021-08-27 16:22:04,969 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 16:22:04,970 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 16:22:04,970 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 16:22:04,973 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 16:22:04,974 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:22:04,974 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 04:22:03" (1/3) ... [2021-08-27 16:22:04,975 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@b19ad7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 04:22:04, skipping insertion in model container [2021-08-27 16:22:04,975 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:22:04,975 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:22:03" (2/3) ... [2021-08-27 16:22:04,976 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@b19ad7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 04:22:04, skipping insertion in model container [2021-08-27 16:22:04,976 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:22:04,976 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:22:04" (3/3) ... [2021-08-27 16:22:04,977 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product16.cil.c [2021-08-27 16:22:05,018 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 16:22:05,019 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 16:22:05,019 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 16:22:05,019 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 16:22:05,019 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 16:22:05,019 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 16:22:05,020 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 16:22:05,020 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 16:22:05,036 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 77 states, 76 states have (on average 1.5) internal successors, (114), 76 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 16:22:05,060 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2021-08-27 16:22:05,060 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:22:05,061 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:22:05,067 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:22:05,067 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:22:05,067 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 16:22:05,068 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 77 states, 76 states have (on average 1.5) internal successors, (114), 76 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 16:22:05,072 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2021-08-27 16:22:05,072 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:22:05,072 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:22:05,073 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:22:05,073 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:22:05,083 INFO L791 eck$LassoCheckResult]: Stem: 63#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);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);~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 47#L-1true havoc main_#res;havoc main_#t~ret45, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 71#L587true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 77#L595true main_#t~ret45 := valid_product_#res;main_~tmp~4 := main_#t~ret45;havoc main_#t~ret45; 37#L551true assume 0 != main_~tmp~4; 12#L523true ~switchedOnBeforeTS~0 := 0; 46#L417true havoc test_#t~nondet66, test_#t~nondet67, test_#t~nondet68, test_#t~nondet69, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 50#L438-1true [2021-08-27 16:22:05,085 INFO L793 eck$LassoCheckResult]: Loop: 50#L438-1true assume !false; 25#L803true assume test_~splverifierCounter~0 < 4; 10#L804true test_~tmp~7 := test_#t~nondet66;havoc test_#t~nondet66; 13#L812true assume !(0 != test_~tmp~7); 52#L812-1true test_~tmp___0~1 := test_#t~nondet67;havoc test_#t~nondet67; 11#L822true assume !(0 != test_~tmp___0~1); 26#L822-1true test_~tmp___2~0 := test_#t~nondet68;havoc test_#t~nondet68; 4#L832true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 36#L840-1true havoc __utac_acc__Specification5_spec__2_#t~ret42;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 74#L728true __utac_acc__Specification5_spec__2_#t~ret42 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret42;havoc __utac_acc__Specification5_spec__2_#t~ret42; 27#L427true assume !(0 != ~pumpRunning~0); 5#L626true assume !(0 != ~systemActive~0); 68#L633true havoc __utac_acc__Specification5_spec__3_#t~ret43, __utac_acc__Specification5_spec__3_#t~ret44, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 43#L936true __utac_acc__Specification5_spec__3_#t~ret43 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret43;havoc __utac_acc__Specification5_spec__3_#t~ret43; 34#L438true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3); 50#L438-1true [2021-08-27 16:22:05,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:22:05,096 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-08-27 16:22:05,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:22:05,103 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021210657] [2021-08-27 16:22:05,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:22:05,104 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:22:05,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:22:05,344 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:22:05,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:22:05,458 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:22:05,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:22:05,471 INFO L82 PathProgramCache]: Analyzing trace with hash 674918198, now seen corresponding path program 1 times [2021-08-27 16:22:05,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:22:05,472 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153933490] [2021-08-27 16:22:05,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:22:05,473 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:22:05,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:22:05,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 16:22:05,535 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 16:22:05,535 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153933490] [2021-08-27 16:22:05,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153933490] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 16:22:05,537 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 16:22:05,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 16:22:05,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518304958] [2021-08-27 16:22:05,541 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-27 16:22:05,542 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 16:22:05,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 16:22:05,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 16:22:05,562 INFO L87 Difference]: Start difference. First operand has 77 states, 76 states have (on average 1.5) internal successors, (114), 76 states have internal predecessors, (114), 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 5.0) 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) [2021-08-27 16:22:05,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 16:22:05,633 INFO L93 Difference]: Finished difference Result 147 states and 203 transitions. [2021-08-27 16:22:05,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 16:22:05,635 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 147 states and 203 transitions. [2021-08-27 16:22:05,645 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 94 [2021-08-27 16:22:05,652 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 147 states to 133 states and 188 transitions. [2021-08-27 16:22:05,655 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 133 [2021-08-27 16:22:05,657 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 133 [2021-08-27 16:22:05,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 133 states and 188 transitions. [2021-08-27 16:22:05,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 16:22:05,659 INFO L681 BuchiCegarLoop]: Abstraction has 133 states and 188 transitions. [2021-08-27 16:22:05,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states and 188 transitions. [2021-08-27 16:22:05,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 131. [2021-08-27 16:22:05,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 131 states have (on average 1.4122137404580153) internal successors, (185), 130 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 16:22:05,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 185 transitions. [2021-08-27 16:22:05,706 INFO L704 BuchiCegarLoop]: Abstraction has 131 states and 185 transitions. [2021-08-27 16:22:05,706 INFO L587 BuchiCegarLoop]: Abstraction has 131 states and 185 transitions. [2021-08-27 16:22:05,706 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 16:22:05,706 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 131 states and 185 transitions. [2021-08-27 16:22:05,712 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 92 [2021-08-27 16:22:05,712 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:22:05,713 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:22:05,713 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:22:05,714 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:22:05,714 INFO L791 eck$LassoCheckResult]: Stem: 311#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);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);~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 298#L-1 havoc main_#res;havoc main_#t~ret45, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 299#L587 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 312#L595 main_#t~ret45 := valid_product_#res;main_~tmp~4 := main_#t~ret45;havoc main_#t~ret45; 285#L551 assume 0 != main_~tmp~4; 250#L523 ~switchedOnBeforeTS~0 := 0; 251#L417 havoc test_#t~nondet66, test_#t~nondet67, test_#t~nondet68, test_#t~nondet69, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 297#L438-1 [2021-08-27 16:22:05,715 INFO L793 eck$LassoCheckResult]: Loop: 297#L438-1 assume !false; 326#L803 assume test_~splverifierCounter~0 < 4; 325#L804 test_~tmp~7 := test_#t~nondet66;havoc test_#t~nondet66; 324#L812 assume !(0 != test_~tmp~7); 302#L812-1 test_~tmp___0~1 := test_#t~nondet67;havoc test_#t~nondet67; 249#L822 assume !(0 != test_~tmp___0~1); 241#L822-1 test_~tmp___2~0 := test_#t~nondet68;havoc test_#t~nondet68; 233#L832 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 235#L840-1 havoc __utac_acc__Specification5_spec__2_#t~ret42;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 314#L728 __utac_acc__Specification5_spec__2_#t~ret42 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret42;havoc __utac_acc__Specification5_spec__2_#t~ret42; 269#L427 assume !(0 != ~pumpRunning~0); 236#L626 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret47, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 237#L658 assume !(0 != ~pumpRunning~0); 332#L633 havoc __utac_acc__Specification5_spec__3_#t~ret43, __utac_acc__Specification5_spec__3_#t~ret44, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 331#L936 __utac_acc__Specification5_spec__3_#t~ret43 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret43;havoc __utac_acc__Specification5_spec__3_#t~ret43; 329#L438 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3); 297#L438-1 [2021-08-27 16:22:05,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:22:05,715 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-08-27 16:22:05,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:22:05,716 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123555229] [2021-08-27 16:22:05,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:22:05,716 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:22:05,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:22:05,763 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:22:05,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:22:05,820 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:22:05,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:22:05,821 INFO L82 PathProgramCache]: Analyzing trace with hash -572900797, now seen corresponding path program 1 times [2021-08-27 16:22:05,821 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:22:05,821 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606461528] [2021-08-27 16:22:05,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:22:05,822 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:22:05,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:22:05,826 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:22:05,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:22:05,833 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:22:05,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:22:05,833 INFO L82 PathProgramCache]: Analyzing trace with hash -747661431, now seen corresponding path program 1 times [2021-08-27 16:22:05,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:22:05,834 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540095691] [2021-08-27 16:22:05,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:22:05,834 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:22:05,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:22:05,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 16:22:05,887 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 16:22:05,888 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540095691] [2021-08-27 16:22:05,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540095691] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 16:22:05,888 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 16:22:05,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 16:22:05,889 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49856515] [2021-08-27 16:22:06,046 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 16:22:06,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 16:22:06,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 16:22:06,047 INFO L87 Difference]: Start difference. First operand 131 states and 185 transitions. cyclomatic complexity: 57 Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 16:22:06,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 16:22:06,139 INFO L93 Difference]: Finished difference Result 356 states and 495 transitions. [2021-08-27 16:22:06,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 16:22:06,140 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 356 states and 495 transitions. [2021-08-27 16:22:06,144 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 178 [2021-08-27 16:22:06,147 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 356 states to 356 states and 495 transitions. [2021-08-27 16:22:06,147 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 356 [2021-08-27 16:22:06,148 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 356 [2021-08-27 16:22:06,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 356 states and 495 transitions. [2021-08-27 16:22:06,150 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 16:22:06,150 INFO L681 BuchiCegarLoop]: Abstraction has 356 states and 495 transitions. [2021-08-27 16:22:06,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states and 495 transitions. [2021-08-27 16:22:06,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 255. [2021-08-27 16:22:06,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 255 states have (on average 1.3686274509803922) internal successors, (349), 254 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 16:22:06,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 349 transitions. [2021-08-27 16:22:06,161 INFO L704 BuchiCegarLoop]: Abstraction has 255 states and 349 transitions. [2021-08-27 16:22:06,161 INFO L587 BuchiCegarLoop]: Abstraction has 255 states and 349 transitions. [2021-08-27 16:22:06,161 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-08-27 16:22:06,161 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 255 states and 349 transitions. [2021-08-27 16:22:06,163 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 178 [2021-08-27 16:22:06,163 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:22:06,163 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:22:06,164 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:22:06,164 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:22:06,164 INFO L791 eck$LassoCheckResult]: Stem: 829#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);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);~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 811#L-1 havoc main_#res;havoc main_#t~ret45, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 812#L587 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 837#L595 main_#t~ret45 := valid_product_#res;main_~tmp~4 := main_#t~ret45;havoc main_#t~ret45; 792#L551 assume 0 != main_~tmp~4; 753#L523 ~switchedOnBeforeTS~0 := 0; 754#L417 havoc test_#t~nondet66, test_#t~nondet67, test_#t~nondet68, test_#t~nondet69, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 809#L438-1 [2021-08-27 16:22:06,164 INFO L793 eck$LassoCheckResult]: Loop: 809#L438-1 assume !false; 887#L803 assume test_~splverifierCounter~0 < 4; 888#L804 test_~tmp~7 := test_#t~nondet66;havoc test_#t~nondet66; 907#L812 assume !(0 != test_~tmp~7); 906#L812-1 test_~tmp___0~1 := test_#t~nondet67;havoc test_#t~nondet67; 905#L822 assume !(0 != test_~tmp___0~1); 903#L822-1 test_~tmp___2~0 := test_#t~nondet68;havoc test_#t~nondet68; 902#L832 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 800#L840-1 havoc __utac_acc__Specification5_spec__2_#t~ret42;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 901#L728 __utac_acc__Specification5_spec__2_#t~ret42 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret42;havoc __utac_acc__Specification5_spec__2_#t~ret42; 900#L427 assume !(0 != ~pumpRunning~0); 899#L626 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret47, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 896#L658 assume !(0 != ~pumpRunning~0); 894#L633 havoc __utac_acc__Specification5_spec__3_#t~ret43, __utac_acc__Specification5_spec__3_#t~ret44, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 893#L936 __utac_acc__Specification5_spec__3_#t~ret43 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret43;havoc __utac_acc__Specification5_spec__3_#t~ret43; 892#L438 assume 2 != __utac_acc__Specification5_spec__3_~tmp~3;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 891#L728-1 __utac_acc__Specification5_spec__3_#t~ret44 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret44;havoc __utac_acc__Specification5_spec__3_#t~ret44; 889#L442 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 809#L438-1 [2021-08-27 16:22:06,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:22:06,165 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-08-27 16:22:06,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:22:06,165 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523617559] [2021-08-27 16:22:06,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:22:06,166 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:22:06,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:22:06,199 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:22:06,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:22:06,231 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:22:06,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:22:06,232 INFO L82 PathProgramCache]: Analyzing trace with hash -801866082, now seen corresponding path program 1 times [2021-08-27 16:22:06,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:22:06,232 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012365098] [2021-08-27 16:22:06,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:22:06,232 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:22:06,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:22:06,236 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:22:06,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:22:06,240 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:22:06,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:22:06,241 INFO L82 PathProgramCache]: Analyzing trace with hash -1243110812, now seen corresponding path program 1 times [2021-08-27 16:22:06,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:22:06,241 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580076049] [2021-08-27 16:22:06,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:22:06,242 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:22:06,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:22:06,274 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:22:06,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:22:06,333 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:22:47,125 WARN L207 SmtUtils]: Spent 40.59 s on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-08-27 16:23:29,165 WARN L207 SmtUtils]: Spent 20.67 s on a formula simplification that was a NOOP. DAG size: 435 [2021-08-27 16:23:29,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 04:23:29 BoogieIcfgContainer [2021-08-27 16:23:29,268 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 16:23:29,269 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 16:23:29,269 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 16:23:29,269 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 16:23:29,269 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:22:04" (3/4) ... [2021-08-27 16:23:29,272 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-08-27 16:23:29,312 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-27 16:23:29,312 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 16:23:29,313 INFO L168 Benchmark]: Toolchain (without parser) took 85719.96 ms. Allocated memory was 60.8 MB in the beginning and 117.4 MB in the end (delta: 56.6 MB). Free memory was 40.4 MB in the beginning and 36.3 MB in the end (delta: 4.1 MB). Peak memory consumption was 61.2 MB. Max. memory is 16.1 GB. [2021-08-27 16:23:29,313 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 60.8 MB. Free memory is still 43.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 16:23:29,313 INFO L168 Benchmark]: CACSL2BoogieTranslator took 397.74 ms. Allocated memory is still 60.8 MB. Free memory was 40.3 MB in the beginning and 36.7 MB in the end (delta: 3.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-08-27 16:23:29,314 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.28 ms. Allocated memory is still 60.8 MB. Free memory was 36.6 MB in the beginning and 33.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-27 16:23:29,314 INFO L168 Benchmark]: Boogie Preprocessor took 25.70 ms. Allocated memory is still 60.8 MB. Free memory was 33.5 MB in the beginning and 31.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:23:29,321 INFO L168 Benchmark]: RCFGBuilder took 883.10 ms. Allocated memory was 60.8 MB in the beginning and 77.6 MB in the end (delta: 16.8 MB). Free memory was 31.4 MB in the beginning and 56.7 MB in the end (delta: -25.3 MB). Peak memory consumption was 17.7 MB. Max. memory is 16.1 GB. [2021-08-27 16:23:29,321 INFO L168 Benchmark]: BuchiAutomizer took 84297.84 ms. Allocated memory was 77.6 MB in the beginning and 117.4 MB in the end (delta: 39.8 MB). Free memory was 56.7 MB in the beginning and 38.3 MB in the end (delta: 18.4 MB). Peak memory consumption was 78.7 MB. Max. memory is 16.1 GB. [2021-08-27 16:23:29,321 INFO L168 Benchmark]: Witness Printer took 43.40 ms. Allocated memory is still 117.4 MB. Free memory was 38.3 MB in the beginning and 36.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:23:29,324 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 60.8 MB. Free memory is still 43.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 397.74 ms. Allocated memory is still 60.8 MB. Free memory was 40.3 MB in the beginning and 36.7 MB in the end (delta: 3.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 67.28 ms. Allocated memory is still 60.8 MB. Free memory was 36.6 MB in the beginning and 33.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.70 ms. Allocated memory is still 60.8 MB. Free memory was 33.5 MB in the beginning and 31.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 883.10 ms. Allocated memory was 60.8 MB in the beginning and 77.6 MB in the end (delta: 16.8 MB). Free memory was 31.4 MB in the beginning and 56.7 MB in the end (delta: -25.3 MB). Peak memory consumption was 17.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 84297.84 ms. Allocated memory was 77.6 MB in the beginning and 117.4 MB in the end (delta: 39.8 MB). Free memory was 56.7 MB in the beginning and 38.3 MB in the end (delta: 18.4 MB). Peak memory consumption was 78.7 MB. Max. memory is 16.1 GB. * Witness Printer took 43.40 ms. Allocated memory is still 117.4 MB. Free memory was 38.3 MB in the beginning and 36.3 MB in the end (delta: 2.0 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 5 locations. The remainder module has 255 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 84.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 83.8s. 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 46.1ms AutomataMinimizationTime, 2 MinimizatonAttempts, 103 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 255 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 259 SDtfs, 404 SDslu, 387 SDs, 0 SdLazy, 77 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 77.4ms 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: 802]: 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 {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@65e59d72=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7880eb66=0, NULL=27662, NULL=0, NULL=1, retValue_acc=0, NULL=27657, NULL=0, NULL=27660, NULL=27667, NULL=8193, methaneLevelCritical=0, NULL=27668, tmp=1, NULL=0, tmp=0, tmp___1=0, NULL=27670, NULL=0, NULL=0, NULL=8200, NULL=27669, NULL=27666, cleanupTimeShifts=4, NULL=27656, switchedOnBeforeTS=0, NULL=8195, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@45619621=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@132f8c83=0, \result=0, NULL=27663, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5c5dbb72=0, NULL=0, NULL=0, NULL=0, NULL=8197, tmp___0=0, \result=1, head=0, pumpRunning=0, NULL=8198, \result=0, tmp=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4bd0aad2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4aed9d3d=59, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7ba213b8=0, NULL=0, NULL=0, NULL=27664, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@b6a6f0=0, retValue_acc=1, NULL=27661, NULL=0, NULL=0, NULL=0, NULL=8196, NULL=8191, NULL=0, retValue_acc=1, NULL=8192, tmp___2=59, NULL=0, NULL=27672, tmp___0=0, NULL=8194, splverifierCounter=0, NULL=0, NULL=0, NULL=8190, NULL=27671, NULL=27658, head=0, NULL=0, NULL=0, tmp=0, NULL=8199, NULL=0, NULL=0, retValue_acc=0, NULL=27659, NULL=27665} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L411] int switchedOnBeforeTS ; [L460] int cleanupTimeShifts = 4; [L616] int pumpRunning = 0; [L617] int systemActive = 1; [L861] int waterLevel = 1; [L862] int methaneLevelCritical = 0; [L542] int retValue_acc ; [L543] int tmp ; [L591] int retValue_acc ; [L594] retValue_acc = 1 [L595] return (retValue_acc); [L549] tmp = valid_product() [L551] COND TRUE \read(tmp) [L416] switchedOnBeforeTS = 0 [L793] int splverifierCounter ; [L794] int tmp ; [L795] int tmp___0 ; [L796] int tmp___1 ; [L797] int tmp___2 ; [L800] splverifierCounter = 0 Loop: [L802] COND TRUE 1 [L804] COND TRUE splverifierCounter < 4 [L810] tmp = __VERIFIER_nondet_int() [L812] COND FALSE !(\read(tmp)) [L820] tmp___0 = __VERIFIER_nondet_int() [L822] COND FALSE !(\read(tmp___0)) [L830] tmp___2 = __VERIFIER_nondet_int() [L832] COND TRUE \read(tmp___2) [L787] systemActive = 1 [L724] int retValue_acc ; [L727] retValue_acc = pumpRunning [L728] return (retValue_acc); [L425] switchedOnBeforeTS = isPumpRunning() [L626] COND FALSE !(\read(pumpRunning)) [L633] COND TRUE \read(systemActive) [L655] int tmp ; [L658] COND FALSE !(\read(pumpRunning)) [L431] int tmp ; [L432] int tmp___0 ; [L932] int retValue_acc ; [L935] retValue_acc = waterLevel [L936] return (retValue_acc); [L436] tmp = getWaterLevel() [L438] COND TRUE tmp != 2 [L724] int retValue_acc ; [L727] retValue_acc = pumpRunning [L728] return (retValue_acc); [L440] tmp___0 = isPumpRunning() [L442] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-08-27 16:23:29,377 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...