./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product50.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_spec4_product50.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 d44823aac48cec2911f68e219166f3ac1836e56b97e3a905bce4580d699376f2 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 22:35:13,057 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 22:35:13,059 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 22:35:13,090 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 22:35:13,091 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 22:35:13,093 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 22:35:13,095 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 22:35:13,096 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 22:35:13,097 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 22:35:13,102 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 22:35:13,102 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 22:35:13,104 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 22:35:13,104 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 22:35:13,106 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 22:35:13,108 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 22:35:13,110 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 22:35:13,111 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 22:35:13,112 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 22:35:13,114 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 22:35:13,117 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 22:35:13,118 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 22:35:13,118 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 22:35:13,119 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 22:35:13,120 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 22:35:13,121 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 22:35:13,122 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 22:35:13,122 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 22:35:13,123 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 22:35:13,123 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 22:35:13,124 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 22:35:13,124 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 22:35:13,125 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 22:35:13,125 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 22:35:13,126 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 22:35:13,126 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 22:35:13,126 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 22:35:13,127 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 22:35:13,128 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 22:35:13,128 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 22:35:13,129 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 22:35:13,130 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 22:35:13,131 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-21 22:35:13,161 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 22:35:13,162 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 22:35:13,162 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 22:35:13,162 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 22:35:13,163 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 22:35:13,163 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 22:35:13,163 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 22:35:13,164 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-21 22:35:13,164 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-21 22:35:13,164 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-21 22:35:13,165 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-21 22:35:13,165 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-21 22:35:13,165 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-21 22:35:13,165 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 22:35:13,165 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 22:35:13,165 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-21 22:35:13,166 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 22:35:13,166 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 22:35:13,166 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 22:35:13,166 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-21 22:35:13,166 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-21 22:35:13,166 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-21 22:35:13,166 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 22:35:13,167 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 22:35:13,167 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-21 22:35:13,167 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 22:35:13,167 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-21 22:35:13,167 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 22:35:13,167 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 22:35:13,168 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 22:35:13,168 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 22:35:13,168 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 22:35:13,169 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-21 22:35:13,169 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d44823aac48cec2911f68e219166f3ac1836e56b97e3a905bce4580d699376f2 [2021-12-21 22:35:13,338 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 22:35:13,353 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 22:35:13,355 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 22:35:13,356 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 22:35:13,357 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 22:35:13,358 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c [2021-12-21 22:35:13,413 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f57b48f0d/207ee968d56942b28d7b52001da96c4a/FLAG8efc41701 [2021-12-21 22:35:13,753 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 22:35:13,754 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c [2021-12-21 22:35:13,765 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f57b48f0d/207ee968d56942b28d7b52001da96c4a/FLAG8efc41701 [2021-12-21 22:35:14,159 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f57b48f0d/207ee968d56942b28d7b52001da96c4a [2021-12-21 22:35:14,160 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 22:35:14,161 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 22:35:14,166 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 22:35:14,167 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 22:35:14,170 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 22:35:14,170 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:35:14" (1/1) ... [2021-12-21 22:35:14,171 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48204524 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:35:14, skipping insertion in model container [2021-12-21 22:35:14,171 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:35:14" (1/1) ... [2021-12-21 22:35:14,175 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 22:35:14,209 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 22:35:14,402 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c[13010,13023] [2021-12-21 22:35:14,431 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 22:35:14,445 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 22:35:14,482 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c[13010,13023] [2021-12-21 22:35:14,495 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 22:35:14,507 INFO L208 MainTranslator]: Completed translation [2021-12-21 22:35:14,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:35:14 WrapperNode [2021-12-21 22:35:14,508 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 22:35:14,509 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 22:35:14,509 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 22:35:14,509 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 22:35:14,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:35:14" (1/1) ... [2021-12-21 22:35:14,536 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:35:14" (1/1) ... [2021-12-21 22:35:14,568 INFO L137 Inliner]: procedures = 56, calls = 155, calls flagged for inlining = 52, calls inlined = 78, statements flattened = 602 [2021-12-21 22:35:14,568 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 22:35:14,569 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 22:35:14,569 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 22:35:14,569 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 22:35:14,579 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:35:14" (1/1) ... [2021-12-21 22:35:14,579 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:35:14" (1/1) ... [2021-12-21 22:35:14,582 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:35:14" (1/1) ... [2021-12-21 22:35:14,582 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:35:14" (1/1) ... [2021-12-21 22:35:14,594 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:35:14" (1/1) ... [2021-12-21 22:35:14,599 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:35:14" (1/1) ... [2021-12-21 22:35:14,601 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:35:14" (1/1) ... [2021-12-21 22:35:14,603 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 22:35:14,603 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 22:35:14,604 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 22:35:14,604 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 22:35:14,604 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:35:14" (1/1) ... [2021-12-21 22:35:14,612 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:35:14,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:35:14,639 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 22:35:14,675 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 22:35:14,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 22:35:14,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 22:35:14,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 22:35:14,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 22:35:14,734 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 22:35:14,735 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 22:35:15,100 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 22:35:15,105 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 22:35:15,110 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-21 22:35:15,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:35:15 BoogieIcfgContainer [2021-12-21 22:35:15,113 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 22:35:15,114 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-21 22:35:15,114 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-21 22:35:15,117 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-21 22:35:15,117 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:35:15,118 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.12 10:35:14" (1/3) ... [2021-12-21 22:35:15,119 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4386246c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.12 10:35:15, skipping insertion in model container [2021-12-21 22:35:15,119 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:35:15,119 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:35:14" (2/3) ... [2021-12-21 22:35:15,119 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4386246c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.12 10:35:15, skipping insertion in model container [2021-12-21 22:35:15,119 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:35:15,119 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:35:15" (3/3) ... [2021-12-21 22:35:15,120 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product50.cil.c [2021-12-21 22:35:15,152 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-21 22:35:15,153 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-21 22:35:15,153 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-21 22:35:15,153 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-21 22:35:15,153 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-21 22:35:15,153 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-21 22:35:15,153 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-21 22:35:15,153 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-21 22:35:15,174 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 163 states, 162 states have (on average 1.376543209876543) internal successors, (223), 162 states have internal predecessors, (223), 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 22:35:15,208 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 105 [2021-12-21 22:35:15,208 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:35:15,208 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:35:15,214 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:35:15,214 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 22:35:15,215 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-21 22:35:15,217 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 163 states, 162 states have (on average 1.376543209876543) internal successors, (223), 162 states have internal predecessors, (223), 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 22:35:15,230 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 105 [2021-12-21 22:35:15,231 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:35:15,231 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:35:15,233 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:35:15,233 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 22:35:15,240 INFO L791 eck$LassoCheckResult]: Stem: 143#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);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 50#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~3#1, main_~tmp~4#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 3#L580true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 68#L573true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 113#L588true main_#t~ret29#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret29#1;havoc main_#t~ret29#1; 109#L535true assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 44#L508true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_~splverifierCounter~0#1, test_~tmp~9#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~9#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 138#L919-2true [2021-12-21 22:35:15,241 INFO L793 eck$LassoCheckResult]: Loop: 138#L919-2true assume !false; 145#L920true assume test_~splverifierCounter~0#1 < 4; 136#L921true test_~tmp~9#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 96#L929true assume !(0 != test_~tmp~9#1); 82#L929-2true test_~tmp___0~3#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 164#L939true assume !(0 != test_~tmp___0~3#1); 127#L939-2true test_~tmp___2~0#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 51#L949true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 144#L905true assume { :end_inline_startSystem } true; 32#L957-2true assume { :begin_inline_timeShift } true; 53#L711true assume !(0 != ~pumpRunning~0); 87#L711-2true assume !(0 != ~systemActive~0); 160#L718-1true assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret27#1, __utac_acc__Specification4_spec__1_#t~ret28#1, __utac_acc__Specification4_spec__1_~tmp~3#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~3#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 38#L673true __utac_acc__Specification4_spec__1_#t~ret27#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~3#1 := __utac_acc__Specification4_spec__1_#t~ret27#1;havoc __utac_acc__Specification4_spec__1_#t~ret27#1; 111#L427true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3#1); 86#L427-1true assume { :end_inline___utac_acc__Specification4_spec__1 } true; 84#L728true assume { :end_inline_timeShift } true; 138#L919-2true [2021-12-21 22:35:15,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:35:15,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2021-12-21 22:35:15,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:35:15,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519137991] [2021-12-21 22:35:15,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:35:15,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:35:15,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:35:15,380 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:35:15,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:35:15,431 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:35:15,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:35:15,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1136063135, now seen corresponding path program 1 times [2021-12-21 22:35:15,434 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:35:15,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99285155] [2021-12-21 22:35:15,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:35:15,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:35:15,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:35:15,513 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 22:35:15,513 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 22:35:15,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99285155] [2021-12-21 22:35:15,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99285155] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 22:35:15,514 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 22:35:15,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 22:35:15,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291455249] [2021-12-21 22:35:15,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 22:35:15,519 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-21 22:35:15,520 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 22:35:15,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 22:35:15,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 22:35:15,543 INFO L87 Difference]: Start difference. First operand has 163 states, 162 states have (on average 1.376543209876543) internal successors, (223), 162 states have internal predecessors, (223), 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 22:35:15,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 22:35:15,586 INFO L93 Difference]: Finished difference Result 160 states and 210 transitions. [2021-12-21 22:35:15,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 22:35:15,592 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 160 states and 210 transitions. [2021-12-21 22:35:15,594 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 101 [2021-12-21 22:35:15,597 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 160 states to 150 states and 199 transitions. [2021-12-21 22:35:15,598 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 150 [2021-12-21 22:35:15,599 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 150 [2021-12-21 22:35:15,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 150 states and 199 transitions. [2021-12-21 22:35:15,600 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 22:35:15,600 INFO L681 BuchiCegarLoop]: Abstraction has 150 states and 199 transitions. [2021-12-21 22:35:15,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states and 199 transitions. [2021-12-21 22:35:15,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2021-12-21 22:35:15,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 150 states have (on average 1.3266666666666667) internal successors, (199), 149 states have internal predecessors, (199), 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 22:35:15,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 199 transitions. [2021-12-21 22:35:15,622 INFO L704 BuchiCegarLoop]: Abstraction has 150 states and 199 transitions. [2021-12-21 22:35:15,622 INFO L587 BuchiCegarLoop]: Abstraction has 150 states and 199 transitions. [2021-12-21 22:35:15,622 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-21 22:35:15,622 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 150 states and 199 transitions. [2021-12-21 22:35:15,624 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 101 [2021-12-21 22:35:15,624 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:35:15,624 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:35:15,624 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:35:15,624 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] [2021-12-21 22:35:15,625 INFO L791 eck$LassoCheckResult]: Stem: 479#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);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 407#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~3#1, main_~tmp~4#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 332#L580 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 333#L573 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 429#L588 main_#t~ret29#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret29#1;havoc main_#t~ret29#1; 468#L535 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 398#L508 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_~splverifierCounter~0#1, test_~tmp~9#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~9#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 399#L919-2 [2021-12-21 22:35:15,625 INFO L793 eck$LassoCheckResult]: Loop: 399#L919-2 assume !false; 478#L920 assume test_~splverifierCounter~0#1 < 4; 477#L921 test_~tmp~9#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 455#L929 assume !(0 != test_~tmp~9#1); 446#L929-2 test_~tmp___0~3#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 447#L939 assume !(0 != test_~tmp___0~3#1); 348#L939-2 test_~tmp___2~0#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 410#L949 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 411#L957 assume 0 != test_~tmp___1~0#1; 381#L957-2 assume { :begin_inline_timeShift } true; 382#L711 assume !(0 != ~pumpRunning~0); 413#L711-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 415#L769 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; 416#L743-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 433#L735-3 assume { :end_inline_processEnvironment__wrappee__base } true; 336#L743-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 337#L769-1 assume { :end_inline_processEnvironment } true; 434#L718-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret27#1, __utac_acc__Specification4_spec__1_#t~ret28#1, __utac_acc__Specification4_spec__1_~tmp~3#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~3#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 391#L673 __utac_acc__Specification4_spec__1_#t~ret27#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~3#1 := __utac_acc__Specification4_spec__1_#t~ret27#1;havoc __utac_acc__Specification4_spec__1_#t~ret27#1; 392#L427 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3#1); 448#L427-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 445#L728 assume { :end_inline_timeShift } true; 399#L919-2 [2021-12-21 22:35:15,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:35:15,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2021-12-21 22:35:15,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:35:15,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360196890] [2021-12-21 22:35:15,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:35:15,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:35:15,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:35:15,640 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:35:15,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:35:15,656 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:35:15,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:35:15,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1694289415, now seen corresponding path program 1 times [2021-12-21 22:35:15,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:35:15,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037183126] [2021-12-21 22:35:15,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:35:15,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:35:15,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:35:15,681 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 22:35:15,682 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 22:35:15,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037183126] [2021-12-21 22:35:15,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037183126] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 22:35:15,682 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 22:35:15,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 22:35:15,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45267253] [2021-12-21 22:35:15,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 22:35:15,683 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-21 22:35:15,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 22:35:15,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 22:35:15,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 22:35:15,684 INFO L87 Difference]: Start difference. First operand 150 states and 199 transitions. cyclomatic complexity: 51 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 22:35:15,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 22:35:15,745 INFO L93 Difference]: Finished difference Result 206 states and 262 transitions. [2021-12-21 22:35:15,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 22:35:15,746 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 206 states and 262 transitions. [2021-12-21 22:35:15,747 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 144 [2021-12-21 22:35:15,748 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 206 states to 206 states and 262 transitions. [2021-12-21 22:35:15,749 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 206 [2021-12-21 22:35:15,749 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 206 [2021-12-21 22:35:15,749 INFO L73 IsDeterministic]: Start isDeterministic. Operand 206 states and 262 transitions. [2021-12-21 22:35:15,750 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 22:35:15,750 INFO L681 BuchiCegarLoop]: Abstraction has 206 states and 262 transitions. [2021-12-21 22:35:15,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states and 262 transitions. [2021-12-21 22:35:15,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2021-12-21 22:35:15,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 206 states have (on average 1.2718446601941749) internal successors, (262), 205 states have internal predecessors, (262), 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 22:35:15,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 262 transitions. [2021-12-21 22:35:15,756 INFO L704 BuchiCegarLoop]: Abstraction has 206 states and 262 transitions. [2021-12-21 22:35:15,756 INFO L587 BuchiCegarLoop]: Abstraction has 206 states and 262 transitions. [2021-12-21 22:35:15,756 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-21 22:35:15,756 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 206 states and 262 transitions. [2021-12-21 22:35:15,757 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 144 [2021-12-21 22:35:15,757 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:35:15,757 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:35:15,758 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:35:15,758 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, 1, 1] [2021-12-21 22:35:15,758 INFO L791 eck$LassoCheckResult]: Stem: 847#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);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 769#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~3#1, main_~tmp~4#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 694#L580 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 695#L573 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 793#L588 main_#t~ret29#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret29#1;havoc main_#t~ret29#1; 830#L535 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 761#L508 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_~splverifierCounter~0#1, test_~tmp~9#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~9#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 762#L919-2 [2021-12-21 22:35:15,759 INFO L793 eck$LassoCheckResult]: Loop: 762#L919-2 assume !false; 845#L920 assume test_~splverifierCounter~0#1 < 4; 844#L921 test_~tmp~9#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 819#L929 assume !(0 != test_~tmp~9#1); 809#L929-2 test_~tmp___0~3#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 810#L939 assume !(0 != test_~tmp___0~3#1); 712#L939-2 test_~tmp___2~0#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 772#L949 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 773#L957 assume 0 != test_~tmp___1~0#1; 742#L957-2 assume { :begin_inline_timeShift } true; 743#L711 assume !(0 != ~pumpRunning~0); 775#L711-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 776#L769 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; 777#L743-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 816#L681-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 838#L686-1 isHighWaterLevel_#t~ret47#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret47#1;havoc isHighWaterLevel_#t~ret47#1; 826#L871-3 assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~1#1 := 0; 827#L871-5 isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; 851#L877-1 processEnvironment__wrappee__highWaterSensor_#t~ret36#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5#1 := processEnvironment__wrappee__highWaterSensor_#t~ret36#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1; 823#L747-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 824#L735-2 assume { :end_inline_processEnvironment__wrappee__base } true; 696#L743-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 697#L769-1 assume { :end_inline_processEnvironment } true; 797#L718-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret27#1, __utac_acc__Specification4_spec__1_#t~ret28#1, __utac_acc__Specification4_spec__1_~tmp~3#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~3#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 754#L673 __utac_acc__Specification4_spec__1_#t~ret27#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~3#1 := __utac_acc__Specification4_spec__1_#t~ret27#1;havoc __utac_acc__Specification4_spec__1_#t~ret27#1; 755#L427 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3#1); 812#L427-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 808#L728 assume { :end_inline_timeShift } true; 762#L919-2 [2021-12-21 22:35:15,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:35:15,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2021-12-21 22:35:15,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:35:15,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397882572] [2021-12-21 22:35:15,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:35:15,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:35:15,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:35:15,767 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:35:15,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:35:15,775 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:35:15,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:35:15,775 INFO L85 PathProgramCache]: Analyzing trace with hash -507538369, now seen corresponding path program 1 times [2021-12-21 22:35:15,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:35:15,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561333680] [2021-12-21 22:35:15,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:35:15,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:35:15,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:35:15,786 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:35:15,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:35:15,794 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:35:15,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:35:15,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1758520317, now seen corresponding path program 1 times [2021-12-21 22:35:15,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:35:15,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32147031] [2021-12-21 22:35:15,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:35:15,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:35:15,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:35:15,821 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:35:15,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:35:15,839 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:35:18,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.12 10:35:18 BoogieIcfgContainer [2021-12-21 22:35:18,244 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-21 22:35:18,245 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 22:35:18,245 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 22:35:18,245 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 22:35:18,246 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:35:15" (3/4) ... [2021-12-21 22:35:18,257 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-21 22:35:18,293 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-21 22:35:18,294 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 22:35:18,294 INFO L158 Benchmark]: Toolchain (without parser) took 4132.90ms. Allocated memory was 100.7MB in the beginning and 151.0MB in the end (delta: 50.3MB). Free memory was 67.9MB in the beginning and 99.0MB in the end (delta: -31.1MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. [2021-12-21 22:35:18,295 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 100.7MB. Free memory was 55.3MB in the beginning and 55.2MB in the end (delta: 49.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 22:35:18,295 INFO L158 Benchmark]: CACSL2BoogieTranslator took 341.84ms. Allocated memory is still 100.7MB. Free memory was 67.7MB in the beginning and 68.1MB in the end (delta: -385.0kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-21 22:35:18,295 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.50ms. Allocated memory is still 100.7MB. Free memory was 68.1MB in the beginning and 64.9MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 22:35:18,296 INFO L158 Benchmark]: Boogie Preprocessor took 33.90ms. Allocated memory is still 100.7MB. Free memory was 64.9MB in the beginning and 62.5MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-21 22:35:18,296 INFO L158 Benchmark]: RCFGBuilder took 509.77ms. Allocated memory was 100.7MB in the beginning and 125.8MB in the end (delta: 25.2MB). Free memory was 62.5MB in the beginning and 93.4MB in the end (delta: -30.9MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. [2021-12-21 22:35:18,296 INFO L158 Benchmark]: BuchiAutomizer took 3130.75ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 93.4MB in the beginning and 102.0MB in the end (delta: -8.7MB). Peak memory consumption was 68.2MB. Max. memory is 16.1GB. [2021-12-21 22:35:18,296 INFO L158 Benchmark]: Witness Printer took 48.88ms. Allocated memory is still 151.0MB. Free memory was 102.0MB in the beginning and 99.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 22:35:18,298 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 100.7MB. Free memory was 55.3MB in the beginning and 55.2MB in the end (delta: 49.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 341.84ms. Allocated memory is still 100.7MB. Free memory was 67.7MB in the beginning and 68.1MB in the end (delta: -385.0kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.50ms. Allocated memory is still 100.7MB. Free memory was 68.1MB in the beginning and 64.9MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.90ms. Allocated memory is still 100.7MB. Free memory was 64.9MB in the beginning and 62.5MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 509.77ms. Allocated memory was 100.7MB in the beginning and 125.8MB in the end (delta: 25.2MB). Free memory was 62.5MB in the beginning and 93.4MB in the end (delta: -30.9MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 3130.75ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 93.4MB in the beginning and 102.0MB in the end (delta: -8.7MB). Peak memory consumption was 68.2MB. Max. memory is 16.1GB. * Witness Printer took 48.88ms. Allocated memory is still 151.0MB. Free memory was 102.0MB in the beginning and 99.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 206 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. 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 206 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 336 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 336 mSDsluCounter, 503 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 96 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 33 IncrementalHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 407 mSDtfsCounter, 33 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: 919]: 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, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7509ded0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@693043be=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@52f6e300=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@539465f7=29, tmp___0=0, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@646da7d6=0, NULL=1, tmp___0=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ee04c9=0, methaneLevelCritical=0, retValue_acc=0, tmp=0, retValue_acc=1, retValue_acc=0, tmp=1, \result=1, tmp=1, \result=1, retValue_acc=1, tmp___2=0, tmp=1, cleanupTimeShifts=4, \result=0, head=0, \result=1, tmp___1=29, NULL=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4d8a185e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@18ed046=0, tmp___0=0, \result=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3c59f499=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@472afb64=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 919]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L445] int cleanupTimeShifts = 4; [L598] int waterLevel = 1; [L599] int methaneLevelCritical = 0; [L704] int pumpRunning = 0; [L705] int systemActive = 1; [L526] int retValue_acc ; [L527] int tmp ; [L531] FCALL select_helpers() [L532] FCALL select_features() [L533] CALL, EXPR valid_product() [L584] int retValue_acc ; [L587] retValue_acc = 1 [L588] return (retValue_acc); [L533] RET, EXPR valid_product() [L533] tmp = valid_product() [L535] COND TRUE \read(tmp) [L537] FCALL setup() [L538] CALL runTest() [L517] CALL test() [L910] int splverifierCounter ; [L911] int tmp ; [L912] int tmp___0 ; [L913] int tmp___1 ; [L914] int tmp___2 ; [L917] splverifierCounter = 0 Loop: [L919] COND TRUE 1 [L921] COND TRUE splverifierCounter < 4 [L927] tmp = __VERIFIER_nondet_int() [L929] COND FALSE !(\read(tmp)) [L937] tmp___0 = __VERIFIER_nondet_int() [L939] COND FALSE !(\read(tmp___0)) [L947] tmp___2 = __VERIFIER_nondet_int() [L949] COND FALSE !(\read(tmp___2)) [L955] tmp___1 = __VERIFIER_nondet_int() [L957] COND TRUE \read(tmp___1) [L964] CALL timeShift() [L711] COND FALSE !(\read(pumpRunning)) [L718] COND TRUE \read(systemActive) [L720] CALL processEnvironment() [L766] int tmp ; [L769] COND FALSE !(\read(pumpRunning)) [L784] CALL processEnvironment__wrappee__highWaterSensor() [L740] int tmp ; [L743] COND TRUE ! pumpRunning [L745] CALL, EXPR isHighWaterLevel() [L863] int retValue_acc ; [L864] int tmp ; [L865] int tmp___0 ; [L869] CALL, EXPR isHighWaterSensorDry() [L678] int retValue_acc ; [L681] COND TRUE waterLevel < 2 [L682] retValue_acc = 1 [L683] return (retValue_acc); [L869] RET, EXPR isHighWaterSensorDry() [L869] tmp = isHighWaterSensorDry() [L871] COND TRUE \read(tmp) [L872] tmp___0 = 0 [L876] retValue_acc = tmp___0 [L877] return (retValue_acc); [L745] RET, EXPR isHighWaterLevel() [L745] tmp = isHighWaterLevel() [L747] COND FALSE !(\read(tmp)) [L753] FCALL processEnvironment__wrappee__base() [L784] RET processEnvironment__wrappee__highWaterSensor() [L720] RET processEnvironment() [L726] CALL __utac_acc__Specification4_spec__1() [L420] int tmp ; [L421] int tmp___0 ; [L425] CALL, EXPR getWaterLevel() [L669] int retValue_acc ; [L672] retValue_acc = waterLevel [L673] return (retValue_acc); [L425] RET, EXPR getWaterLevel() [L425] tmp = getWaterLevel() [L427] COND FALSE !(tmp == 0) [L726] RET __utac_acc__Specification4_spec__1() [L964] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-21 22:35:18,342 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)