./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product53.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version ae007674 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec1_product53.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 55ce316e71b3537e039a3a4d2127e4eace2c49bce87df09105114bd008c08800 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 09:39:37,052 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 09:39:37,053 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 09:39:37,081 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 09:39:37,083 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 09:39:37,084 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 09:39:37,087 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 09:39:37,089 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 09:39:37,091 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 09:39:37,092 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 09:39:37,098 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 09:39:37,100 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 09:39:37,101 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 09:39:37,103 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 09:39:37,105 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 09:39:37,106 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 09:39:37,107 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 09:39:37,110 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 09:39:37,111 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 09:39:37,115 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 09:39:37,116 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 09:39:37,120 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 09:39:37,120 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 09:39:37,121 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 09:39:37,123 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 09:39:37,128 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 09:39:37,128 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 09:39:37,128 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 09:39:37,129 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 09:39:37,130 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 09:39:37,130 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 09:39:37,131 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 09:39:37,131 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 09:39:37,132 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 09:39:37,133 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 09:39:37,133 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 09:39:37,134 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 09:39:37,134 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 09:39:37,134 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 09:39:37,135 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 09:39:37,136 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 09:39:37,137 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-28 09:39:37,162 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 09:39:37,163 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 09:39:37,164 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 09:39:37,164 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 09:39:37,165 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 09:39:37,165 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 09:39:37,165 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 09:39:37,166 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-28 09:39:37,166 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-28 09:39:37,166 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-28 09:39:37,166 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-28 09:39:37,167 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-28 09:39:37,167 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-28 09:39:37,167 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 09:39:37,167 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-28 09:39:37,167 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-28 09:39:37,168 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 09:39:37,168 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-28 09:39:37,168 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 09:39:37,168 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-28 09:39:37,168 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-28 09:39:37,168 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-28 09:39:37,168 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-28 09:39:37,169 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 09:39:37,169 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-28 09:39:37,169 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 09:39:37,169 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-28 09:39:37,169 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 09:39:37,170 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 09:39:37,170 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 09:39:37,170 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 09:39:37,171 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-28 09:39:37,171 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 55ce316e71b3537e039a3a4d2127e4eace2c49bce87df09105114bd008c08800 [2021-12-28 09:39:37,399 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 09:39:37,417 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 09:39:37,418 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 09:39:37,419 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 09:39:37,423 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 09:39:37,424 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product53.cil.c [2021-12-28 09:39:37,467 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/277f2b120/36553805991f41789deeccb5ab9603b0/FLAGe14df6a5a [2021-12-28 09:39:37,860 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 09:39:37,863 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product53.cil.c [2021-12-28 09:39:37,872 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/277f2b120/36553805991f41789deeccb5ab9603b0/FLAGe14df6a5a [2021-12-28 09:39:38,250 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/277f2b120/36553805991f41789deeccb5ab9603b0 [2021-12-28 09:39:38,252 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 09:39:38,254 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 09:39:38,256 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 09:39:38,256 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 09:39:38,258 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 09:39:38,259 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 09:39:38" (1/1) ... [2021-12-28 09:39:38,259 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75c39bc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:39:38, skipping insertion in model container [2021-12-28 09:39:38,260 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 09:39:38" (1/1) ... [2021-12-28 09:39:38,264 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 09:39:38,304 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 09:39:38,421 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product53.cil.c[2044,2057] [2021-12-28 09:39:38,552 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 09:39:38,558 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 09:39:38,567 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product53.cil.c[2044,2057] [2021-12-28 09:39:38,613 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 09:39:38,628 INFO L208 MainTranslator]: Completed translation [2021-12-28 09:39:38,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:39:38 WrapperNode [2021-12-28 09:39:38,628 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 09:39:38,629 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 09:39:38,629 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 09:39:38,629 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 09:39:38,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:39:38" (1/1) ... [2021-12-28 09:39:38,645 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:39:38" (1/1) ... [2021-12-28 09:39:38,682 INFO L137 Inliner]: procedures = 56, calls = 158, calls flagged for inlining = 55, calls inlined = 137, statements flattened = 1001 [2021-12-28 09:39:38,683 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 09:39:38,683 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 09:39:38,684 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 09:39:38,684 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 09:39:38,689 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:39:38" (1/1) ... [2021-12-28 09:39:38,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:39:38" (1/1) ... [2021-12-28 09:39:38,693 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:39:38" (1/1) ... [2021-12-28 09:39:38,693 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:39:38" (1/1) ... [2021-12-28 09:39:38,702 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:39:38" (1/1) ... [2021-12-28 09:39:38,709 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:39:38" (1/1) ... [2021-12-28 09:39:38,711 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:39:38" (1/1) ... [2021-12-28 09:39:38,714 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 09:39:38,715 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 09:39:38,715 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 09:39:38,715 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 09:39:38,715 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:39:38" (1/1) ... [2021-12-28 09:39:38,720 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:39:38,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:39:38,747 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) [2021-12-28 09:39:38,751 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 [2021-12-28 09:39:38,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 09:39:38,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 09:39:38,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 09:39:38,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 09:39:38,860 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 09:39:38,862 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 09:39:39,354 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 09:39:39,361 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 09:39:39,362 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-28 09:39:39,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:39:39 BoogieIcfgContainer [2021-12-28 09:39:39,363 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 09:39:39,364 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-28 09:39:39,365 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-28 09:39:39,367 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-28 09:39:39,367 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:39:39,367 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.12 09:39:38" (1/3) ... [2021-12-28 09:39:39,368 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@19936043 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.12 09:39:39, skipping insertion in model container [2021-12-28 09:39:39,368 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:39:39,368 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:39:38" (2/3) ... [2021-12-28 09:39:39,369 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@19936043 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.12 09:39:39, skipping insertion in model container [2021-12-28 09:39:39,369 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:39:39,369 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:39:39" (3/3) ... [2021-12-28 09:39:39,370 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product53.cil.c [2021-12-28 09:39:39,406 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-28 09:39:39,406 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-28 09:39:39,406 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-28 09:39:39,406 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-28 09:39:39,406 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-28 09:39:39,406 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-28 09:39:39,406 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-28 09:39:39,407 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-28 09:39:39,425 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 270 states, 269 states have (on average 1.3717472118959109) internal successors, (369), 269 states have internal predecessors, (369), 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) [2021-12-28 09:39:39,448 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 176 [2021-12-28 09:39:39,448 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:39:39,448 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:39:39,452 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:39:39,452 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:39:39,453 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-28 09:39:39,453 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 270 states, 269 states have (on average 1.3717472118959109) internal successors, (369), 269 states have internal predecessors, (369), 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) [2021-12-28 09:39:39,460 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 176 [2021-12-28 09:39:39,460 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:39:39,460 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:39:39,461 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:39:39,461 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:39:39,466 INFO L791 eck$LassoCheckResult]: Stem: 259#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(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 176#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; 215#L874true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 249#L867true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 174#L882true 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; 106#L544true assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 223#L517true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet44#1, test_#t~nondet45#1, test_#t~nondet46#1, test_#t~nondet47#1, test_~splverifierCounter~0#1, test_~tmp~10#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~10#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 33#L797-2true [2021-12-28 09:39:39,467 INFO L793 eck$LassoCheckResult]: Loop: 33#L797-2true assume !false; 180#L798true assume test_~splverifierCounter~0#1 < 4; 127#L799true test_~tmp~10#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 147#L807true assume !(0 != test_~tmp~10#1); 205#L807-2true test_~tmp___0~3#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 65#L817true assume !(0 != test_~tmp___0~3#1); 148#L817-2true test_~tmp___2~0#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 139#L827true assume 0 != test_~tmp___2~0#1; 192#L833-2true assume { :begin_inline_timeShift } true; 119#L571true assume !(0 != ~pumpRunning~0); 172#L571-2true assume !(0 != ~systemActive~0); 181#L578-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret4#1, __utac_acc__Specification1_spec__1_#t~ret5#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;isMethaneLevelCritical_~retValue_acc~10#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1; 124#L931-1true __utac_acc__Specification1_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret4#1;havoc __utac_acc__Specification1_spec__1_#t~ret4#1; 76#L61true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); 110#L61-1true assume { :end_inline___utac_acc__Specification1_spec__1 } true; 95#L588true assume { :end_inline_timeShift } true; 33#L797-2true [2021-12-28 09:39:39,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:39:39,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2021-12-28 09:39:39,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:39:39,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129816229] [2021-12-28 09:39:39,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:39:39,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:39:39,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:39:39,546 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:39:39,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:39:39,573 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:39:39,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:39:39,575 INFO L85 PathProgramCache]: Analyzing trace with hash 408252804, now seen corresponding path program 1 times [2021-12-28 09:39:39,575 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:39:39,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105494691] [2021-12-28 09:39:39,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:39:39,576 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:39:39,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:39:39,580 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:39:39,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:39:39,584 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:39:39,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:39:39,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1763671880, now seen corresponding path program 1 times [2021-12-28 09:39:39,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:39:39,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336756902] [2021-12-28 09:39:39,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:39:39,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:39:39,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:39:39,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:39:39,701 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 09:39:39,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336756902] [2021-12-28 09:39:39,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336756902] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 09:39:39,703 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 09:39:39,703 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 09:39:39,703 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370167966] [2021-12-28 09:39:39,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 09:39:39,798 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 09:39:39,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 09:39:39,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-28 09:39:39,827 INFO L87 Difference]: Start difference. First operand has 270 states, 269 states have (on average 1.3717472118959109) internal successors, (369), 269 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 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) [2021-12-28 09:39:39,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 09:39:39,924 INFO L93 Difference]: Finished difference Result 267 states and 355 transitions. [2021-12-28 09:39:39,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 09:39:39,929 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 267 states and 355 transitions. [2021-12-28 09:39:39,933 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 172 [2021-12-28 09:39:39,937 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 267 states to 257 states and 345 transitions. [2021-12-28 09:39:39,938 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 257 [2021-12-28 09:39:39,939 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 257 [2021-12-28 09:39:39,939 INFO L73 IsDeterministic]: Start isDeterministic. Operand 257 states and 345 transitions. [2021-12-28 09:39:39,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 09:39:39,941 INFO L681 BuchiCegarLoop]: Abstraction has 257 states and 345 transitions. [2021-12-28 09:39:39,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states and 345 transitions. [2021-12-28 09:39:39,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 257. [2021-12-28 09:39:39,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 257 states have (on average 1.3424124513618676) internal successors, (345), 256 states have internal predecessors, (345), 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) [2021-12-28 09:39:39,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 345 transitions. [2021-12-28 09:39:39,975 INFO L704 BuchiCegarLoop]: Abstraction has 257 states and 345 transitions. [2021-12-28 09:39:39,975 INFO L587 BuchiCegarLoop]: Abstraction has 257 states and 345 transitions. [2021-12-28 09:39:39,975 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-28 09:39:39,975 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 257 states and 345 transitions. [2021-12-28 09:39:39,986 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 172 [2021-12-28 09:39:39,987 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:39:39,987 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:39:39,990 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:39:39,990 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] [2021-12-28 09:39:39,991 INFO L791 eck$LassoCheckResult]: Stem: 811#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(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 783#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; 784#L874 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 803#L867 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 782#L882 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; 723#L544 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 724#L517 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet44#1, test_#t~nondet45#1, test_#t~nondet46#1, test_#t~nondet47#1, test_~splverifierCounter~0#1, test_~tmp~10#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~10#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 608#L797-2 [2021-12-28 09:39:39,991 INFO L793 eck$LassoCheckResult]: Loop: 608#L797-2 assume !false; 609#L798 assume test_~splverifierCounter~0#1 < 4; 743#L799 test_~tmp~10#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 744#L807 assume !(0 != test_~tmp~10#1); 765#L807-2 test_~tmp___0~3#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 664#L817 assume !(0 != test_~tmp___0~3#1); 601#L817-2 test_~tmp___2~0#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 756#L827 assume 0 != test_~tmp___2~0#1; 648#L833-2 assume { :begin_inline_timeShift } true; 732#L571 assume !(0 != ~pumpRunning~0); 733#L571-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 621#L655 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret33#1, isMethaneAlarm_~retValue_acc~4#1;havoc isMethaneAlarm_~retValue_acc~4#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;isMethaneLevelCritical_~retValue_acc~10#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1; 575#L931 isMethaneAlarm_#t~ret33#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~4#1 := isMethaneAlarm_#t~ret33#1;havoc isMethaneAlarm_#t~ret33#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~4#1; 576#L699 processEnvironment_#t~ret32#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~7#1 := processEnvironment_#t~ret32#1;havoc processEnvironment_#t~ret32#1; 777#L659 assume 0 != processEnvironment_~tmp~7#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 778#L689 assume { :end_inline_deactivatePump } true; 597#L655-1 assume { :end_inline_processEnvironment } true; 781#L578-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret4#1, __utac_acc__Specification1_spec__1_#t~ret5#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;isMethaneLevelCritical_~retValue_acc~10#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1; 739#L931-1 __utac_acc__Specification1_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret4#1;havoc __utac_acc__Specification1_spec__1_#t~ret4#1; 677#L61 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); 678#L61-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 708#L588 assume { :end_inline_timeShift } true; 608#L797-2 [2021-12-28 09:39:39,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:39:39,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2021-12-28 09:39:39,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:39:39,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748889759] [2021-12-28 09:39:39,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:39:39,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:39:40,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:39:40,012 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:39:40,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:39:40,032 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:39:40,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:39:40,035 INFO L85 PathProgramCache]: Analyzing trace with hash -49321715, now seen corresponding path program 1 times [2021-12-28 09:39:40,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:39:40,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819168532] [2021-12-28 09:39:40,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:39:40,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:39:40,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:39:40,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:39:40,053 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 09:39:40,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819168532] [2021-12-28 09:39:40,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819168532] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 09:39:40,053 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 09:39:40,053 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 09:39:40,054 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608397285] [2021-12-28 09:39:40,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 09:39:40,054 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-28 09:39:40,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 09:39:40,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 09:39:40,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 09:39:40,056 INFO L87 Difference]: Start difference. First operand 257 states and 345 transitions. cyclomatic complexity: 90 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) [2021-12-28 09:39:40,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 09:39:40,129 INFO L93 Difference]: Finished difference Result 267 states and 338 transitions. [2021-12-28 09:39:40,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 09:39:40,130 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 267 states and 338 transitions. [2021-12-28 09:39:40,133 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 184 [2021-12-28 09:39:40,136 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 267 states to 267 states and 338 transitions. [2021-12-28 09:39:40,136 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 267 [2021-12-28 09:39:40,137 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 267 [2021-12-28 09:39:40,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 267 states and 338 transitions. [2021-12-28 09:39:40,141 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 09:39:40,141 INFO L681 BuchiCegarLoop]: Abstraction has 267 states and 338 transitions. [2021-12-28 09:39:40,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states and 338 transitions. [2021-12-28 09:39:40,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 267. [2021-12-28 09:39:40,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 267 states have (on average 1.2659176029962547) internal successors, (338), 266 states have internal predecessors, (338), 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) [2021-12-28 09:39:40,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 338 transitions. [2021-12-28 09:39:40,158 INFO L704 BuchiCegarLoop]: Abstraction has 267 states and 338 transitions. [2021-12-28 09:39:40,158 INFO L587 BuchiCegarLoop]: Abstraction has 267 states and 338 transitions. [2021-12-28 09:39:40,158 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-28 09:39:40,158 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 267 states and 338 transitions. [2021-12-28 09:39:40,160 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 184 [2021-12-28 09:39:40,160 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:39:40,160 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:39:40,161 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:39:40,161 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, 1] [2021-12-28 09:39:40,162 INFO L791 eck$LassoCheckResult]: Stem: 1297#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(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1278#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; 1279#L874 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1290#L867 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 1277#L882 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; 1225#L544 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 1226#L517 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet44#1, test_#t~nondet45#1, test_#t~nondet46#1, test_#t~nondet47#1, test_~splverifierCounter~0#1, test_~tmp~10#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~10#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1127#L797-2 [2021-12-28 09:39:40,162 INFO L793 eck$LassoCheckResult]: Loop: 1127#L797-2 assume !false; 1128#L798 assume test_~splverifierCounter~0#1 < 4; 1247#L799 test_~tmp~10#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 1248#L807 assume !(0 != test_~tmp~10#1); 1260#L807-2 test_~tmp___0~3#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 1180#L817 assume !(0 != test_~tmp___0~3#1); 1118#L817-2 test_~tmp___2~0#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 1257#L827 assume 0 != test_~tmp___2~0#1; 1162#L833-2 assume { :begin_inline_timeShift } true; 1238#L571 assume !(0 != ~pumpRunning~0); 1239#L571-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 1138#L655 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret31#1, processEnvironment__wrappee__lowWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6#1; 1139#L629-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret30#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; 1266#L603-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret42#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~12#1;havoc isHighWaterSensorDry_~retValue_acc~12#1; 1142#L971-3 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~12#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~12#1; 1143#L976-3 isHighWaterLevel_#t~ret42#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret42#1;havoc isHighWaterLevel_#t~ret42#1; 1136#L757-9 assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1137#L757-11 isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; 1148#L763-3 processEnvironment__wrappee__highWaterSensor_#t~ret30#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5#1 := processEnvironment__wrappee__highWaterSensor_#t~ret30#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret30#1; 1149#L607-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1150#L595-6 assume { :end_inline_processEnvironment__wrappee__base } true; 1250#L603-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1115#L629-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 1116#L655-1 assume { :end_inline_processEnvironment } true; 1276#L578-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret4#1, __utac_acc__Specification1_spec__1_#t~ret5#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;isMethaneLevelCritical_~retValue_acc~10#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1; 1243#L931-1 __utac_acc__Specification1_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret4#1;havoc __utac_acc__Specification1_spec__1_#t~ret4#1; 1189#L61 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); 1190#L61-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 1212#L588 assume { :end_inline_timeShift } true; 1127#L797-2 [2021-12-28 09:39:40,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:39:40,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2021-12-28 09:39:40,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:39:40,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447020632] [2021-12-28 09:39:40,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:39:40,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:39:40,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:39:40,176 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:39:40,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:39:40,200 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:39:40,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:39:40,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1895097644, now seen corresponding path program 1 times [2021-12-28 09:39:40,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:39:40,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070356169] [2021-12-28 09:39:40,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:39:40,201 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:39:40,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:39:40,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:39:40,232 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 09:39:40,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070356169] [2021-12-28 09:39:40,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070356169] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 09:39:40,232 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 09:39:40,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 09:39:40,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55275568] [2021-12-28 09:39:40,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 09:39:40,232 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-28 09:39:40,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 09:39:40,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 09:39:40,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 09:39:40,233 INFO L87 Difference]: Start difference. First operand 267 states and 338 transitions. cyclomatic complexity: 73 Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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) [2021-12-28 09:39:40,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 09:39:40,343 INFO L93 Difference]: Finished difference Result 751 states and 928 transitions. [2021-12-28 09:39:40,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 09:39:40,344 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 751 states and 928 transitions. [2021-12-28 09:39:40,347 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 528 [2021-12-28 09:39:40,350 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 751 states to 751 states and 928 transitions. [2021-12-28 09:39:40,350 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 751 [2021-12-28 09:39:40,350 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 751 [2021-12-28 09:39:40,350 INFO L73 IsDeterministic]: Start isDeterministic. Operand 751 states and 928 transitions. [2021-12-28 09:39:40,351 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 09:39:40,351 INFO L681 BuchiCegarLoop]: Abstraction has 751 states and 928 transitions. [2021-12-28 09:39:40,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states and 928 transitions. [2021-12-28 09:39:40,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 285. [2021-12-28 09:39:40,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 285 states have (on average 1.249122807017544) internal successors, (356), 284 states have internal predecessors, (356), 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) [2021-12-28 09:39:40,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 356 transitions. [2021-12-28 09:39:40,356 INFO L704 BuchiCegarLoop]: Abstraction has 285 states and 356 transitions. [2021-12-28 09:39:40,356 INFO L587 BuchiCegarLoop]: Abstraction has 285 states and 356 transitions. [2021-12-28 09:39:40,357 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-28 09:39:40,357 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 285 states and 356 transitions. [2021-12-28 09:39:40,358 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 196 [2021-12-28 09:39:40,358 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:39:40,358 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:39:40,359 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:39:40,359 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, 1] [2021-12-28 09:39:40,359 INFO L791 eck$LassoCheckResult]: Stem: 2344#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(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 2316#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; 2317#L874 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2333#L867 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 2315#L882 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; 2257#L544 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 2258#L517 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet44#1, test_#t~nondet45#1, test_#t~nondet46#1, test_#t~nondet47#1, test_~splverifierCounter~0#1, test_~tmp~10#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~10#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2153#L797-2 [2021-12-28 09:39:40,367 INFO L793 eck$LassoCheckResult]: Loop: 2153#L797-2 assume !false; 2154#L798 assume test_~splverifierCounter~0#1 < 4; 2282#L799 test_~tmp~10#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 2283#L807 assume !(0 != test_~tmp~10#1); 2296#L807-2 test_~tmp___0~3#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 2210#L817 assume !(0 != test_~tmp___0~3#1); 2146#L817-2 test_~tmp___2~0#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 2293#L827 assume 0 != test_~tmp___2~0#1; 2191#L833-2 assume { :begin_inline_timeShift } true; 2269#L571 assume !(0 != ~pumpRunning~0); 2270#L571-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 2166#L655 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret31#1, processEnvironment__wrappee__lowWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6#1; 2167#L629-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret30#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; 2303#L603-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret42#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~12#1;havoc isHighWaterSensorDry_~retValue_acc~12#1; 2170#L971-3 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~12#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~12#1; 2171#L976-3 isHighWaterLevel_#t~ret42#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret42#1;havoc isHighWaterLevel_#t~ret42#1; 2164#L757-9 assume !(0 != isHighWaterLevel_~tmp~8#1);isHighWaterLevel_~tmp___0~1#1 := 1; 2165#L757-11 isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; 2177#L763-3 processEnvironment__wrappee__highWaterSensor_#t~ret30#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5#1 := processEnvironment__wrappee__highWaterSensor_#t~ret30#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret30#1; 2178#L607-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2179#L595-6 assume { :end_inline_processEnvironment__wrappee__base } true; 2284#L603-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2143#L629-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 2144#L655-1 assume { :end_inline_processEnvironment } true; 2314#L578-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret4#1, __utac_acc__Specification1_spec__1_#t~ret5#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;isMethaneLevelCritical_~retValue_acc~10#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1; 2277#L931-1 __utac_acc__Specification1_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret4#1;havoc __utac_acc__Specification1_spec__1_#t~ret4#1; 2219#L61 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); 2220#L61-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 2243#L588 assume { :end_inline_timeShift } true; 2153#L797-2 [2021-12-28 09:39:40,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:39:40,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2021-12-28 09:39:40,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:39:40,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086709436] [2021-12-28 09:39:40,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:39:40,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:39:40,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:39:40,375 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:39:40,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:39:40,385 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:39:40,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:39:40,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1308291630, now seen corresponding path program 1 times [2021-12-28 09:39:40,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:39:40,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298879625] [2021-12-28 09:39:40,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:39:40,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:39:40,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:39:40,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:39:40,411 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 09:39:40,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298879625] [2021-12-28 09:39:40,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298879625] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 09:39:40,411 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 09:39:40,411 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 09:39:40,412 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376169985] [2021-12-28 09:39:40,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 09:39:40,412 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-28 09:39:40,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 09:39:40,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 09:39:40,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 09:39:40,412 INFO L87 Difference]: Start difference. First operand 285 states and 356 transitions. cyclomatic complexity: 73 Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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) [2021-12-28 09:39:40,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 09:39:40,547 INFO L93 Difference]: Finished difference Result 652 states and 808 transitions. [2021-12-28 09:39:40,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 09:39:40,549 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 652 states and 808 transitions. [2021-12-28 09:39:40,552 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 462 [2021-12-28 09:39:40,554 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 652 states to 652 states and 808 transitions. [2021-12-28 09:39:40,554 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 652 [2021-12-28 09:39:40,555 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 652 [2021-12-28 09:39:40,555 INFO L73 IsDeterministic]: Start isDeterministic. Operand 652 states and 808 transitions. [2021-12-28 09:39:40,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 09:39:40,555 INFO L681 BuchiCegarLoop]: Abstraction has 652 states and 808 transitions. [2021-12-28 09:39:40,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states and 808 transitions. [2021-12-28 09:39:40,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 312. [2021-12-28 09:39:40,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 312 states have (on average 1.2275641025641026) internal successors, (383), 311 states have internal predecessors, (383), 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) [2021-12-28 09:39:40,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 383 transitions. [2021-12-28 09:39:40,559 INFO L704 BuchiCegarLoop]: Abstraction has 312 states and 383 transitions. [2021-12-28 09:39:40,560 INFO L587 BuchiCegarLoop]: Abstraction has 312 states and 383 transitions. [2021-12-28 09:39:40,560 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-28 09:39:40,560 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 312 states and 383 transitions. [2021-12-28 09:39:40,561 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 214 [2021-12-28 09:39:40,561 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:39:40,561 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:39:40,561 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:39:40,561 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, 1] [2021-12-28 09:39:40,561 INFO L791 eck$LassoCheckResult]: Stem: 3307#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(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 3271#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; 3272#L874 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3290#L867 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 3270#L882 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; 3209#L544 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 3210#L517 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet44#1, test_#t~nondet45#1, test_#t~nondet46#1, test_#t~nondet47#1, test_~splverifierCounter~0#1, test_~tmp~10#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~10#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3104#L797-2 [2021-12-28 09:39:40,561 INFO L793 eck$LassoCheckResult]: Loop: 3104#L797-2 assume !false; 3105#L798 assume test_~splverifierCounter~0#1 < 4; 3275#L799 test_~tmp~10#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 3351#L807 assume !(0 != test_~tmp~10#1); 3348#L807-2 test_~tmp___0~3#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 3346#L817 assume !(0 != test_~tmp___0~3#1); 3251#L817-2 test_~tmp___2~0#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 3247#L827 assume 0 != test_~tmp___2~0#1; 3140#L833-2 assume { :begin_inline_timeShift } true; 3224#L571 assume !(0 != ~pumpRunning~0); 3225#L571-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 3116#L655 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret31#1, processEnvironment__wrappee__lowWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6#1; 3117#L629-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret30#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; 3259#L603-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret42#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~12#1;havoc isHighWaterSensorDry_~retValue_acc~12#1; 3120#L971-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~12#1; 3122#L976-3 isHighWaterLevel_#t~ret42#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret42#1;havoc isHighWaterLevel_#t~ret42#1; 3319#L757-9 assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~1#1 := 0; 3318#L757-11 isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; 3316#L763-3 processEnvironment__wrappee__highWaterSensor_#t~ret30#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5#1 := processEnvironment__wrappee__highWaterSensor_#t~ret30#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret30#1; 3314#L607-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3296#L595-6 assume { :end_inline_processEnvironment__wrappee__base } true; 3297#L603-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3375#L629-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 3291#L655-1 assume { :end_inline_processEnvironment } true; 3374#L578-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret4#1, __utac_acc__Specification1_spec__1_#t~ret5#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;isMethaneLevelCritical_~retValue_acc~10#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1; 3373#L931-1 __utac_acc__Specification1_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret4#1;havoc __utac_acc__Specification1_spec__1_#t~ret4#1; 3371#L61 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); 3216#L61-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 3195#L588 assume { :end_inline_timeShift } true; 3104#L797-2 [2021-12-28 09:39:40,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:39:40,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 5 times [2021-12-28 09:39:40,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:39:40,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659150401] [2021-12-28 09:39:40,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:39:40,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:39:40,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:39:40,571 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:39:40,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:39:40,577 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:39:40,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:39:40,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1120005974, now seen corresponding path program 1 times [2021-12-28 09:39:40,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:39:40,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191203539] [2021-12-28 09:39:40,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:39:40,578 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:39:40,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:39:40,582 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:39:40,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:39:40,586 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:39:40,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:39:40,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1245740698, now seen corresponding path program 1 times [2021-12-28 09:39:40,586 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:39:40,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892022229] [2021-12-28 09:39:40,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:39:40,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:39:40,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:39:40,593 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:39:40,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:39:40,601 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:39:42,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.12 09:39:42 BoogieIcfgContainer [2021-12-28 09:39:42,869 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-28 09:39:42,870 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-28 09:39:42,870 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-28 09:39:42,870 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-28 09:39:42,870 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:39:39" (3/4) ... [2021-12-28 09:39:42,872 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-28 09:39:42,916 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-28 09:39:42,916 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-28 09:39:42,917 INFO L158 Benchmark]: Toolchain (without parser) took 4663.03ms. Allocated memory was 50.3MB in the beginning and 107.0MB in the end (delta: 56.6MB). Free memory was 26.8MB in the beginning and 32.7MB in the end (delta: -5.9MB). Peak memory consumption was 53.2MB. Max. memory is 16.1GB. [2021-12-28 09:39:42,917 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 50.3MB. Free memory is still 33.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 09:39:42,918 INFO L158 Benchmark]: CACSL2BoogieTranslator took 372.42ms. Allocated memory was 50.3MB in the beginning and 67.1MB in the end (delta: 16.8MB). Free memory was 26.5MB in the beginning and 42.8MB in the end (delta: -16.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-28 09:39:42,918 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.08ms. Allocated memory is still 67.1MB. Free memory was 42.5MB in the beginning and 38.2MB in the end (delta: 4.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-28 09:39:42,918 INFO L158 Benchmark]: Boogie Preprocessor took 30.62ms. Allocated memory is still 67.1MB. Free memory was 38.2MB in the beginning and 35.1MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 09:39:42,919 INFO L158 Benchmark]: RCFGBuilder took 649.22ms. Allocated memory is still 67.1MB. Free memory was 35.1MB in the beginning and 39.3MB in the end (delta: -4.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-28 09:39:42,919 INFO L158 Benchmark]: BuchiAutomizer took 3505.03ms. Allocated memory was 67.1MB in the beginning and 107.0MB in the end (delta: 39.8MB). Free memory was 39.0MB in the beginning and 35.9MB in the end (delta: 3.1MB). Peak memory consumption was 51.6MB. Max. memory is 16.1GB. [2021-12-28 09:39:42,919 INFO L158 Benchmark]: Witness Printer took 46.74ms. Allocated memory is still 107.0MB. Free memory was 35.9MB in the beginning and 32.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 09:39:42,920 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 50.3MB. Free memory is still 33.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 372.42ms. Allocated memory was 50.3MB in the beginning and 67.1MB in the end (delta: 16.8MB). Free memory was 26.5MB in the beginning and 42.8MB in the end (delta: -16.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.08ms. Allocated memory is still 67.1MB. Free memory was 42.5MB in the beginning and 38.2MB in the end (delta: 4.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.62ms. Allocated memory is still 67.1MB. Free memory was 38.2MB in the beginning and 35.1MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 649.22ms. Allocated memory is still 67.1MB. Free memory was 35.1MB in the beginning and 39.3MB in the end (delta: -4.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 3505.03ms. Allocated memory was 67.1MB in the beginning and 107.0MB in the end (delta: 39.8MB). Free memory was 39.0MB in the beginning and 35.9MB in the end (delta: 3.1MB). Peak memory consumption was 51.6MB. Max. memory is 16.1GB. * Witness Printer took 46.74ms. Allocated memory is still 107.0MB. Free memory was 35.9MB in the beginning and 32.7MB 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 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 312 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.4s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 2.8s. Construction of modules took 0.2s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 806 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 312 states and ocurred in iteration 4. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2845 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2845 mSDsluCounter, 3064 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1580 mSDsCounter, 101 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 279 IncrementalHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 101 mSolverCounterUnsat, 1484 mSDtfsCounter, 279 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 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: 797]: 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@f222c9b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@297b2613=0, NULL=0, tmp___0=0, head=0, pumpRunning=0, tmp___0=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2a544a47=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2de17d8b=0, tmp=0, methaneLevelCritical=0, retValue_acc=1, retValue_acc=0, retValue_acc=1, \result=0, retValue_acc=0, tmp=1, \result=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@97e4f70=0, tmp___2=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3190a131=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1a8299d=0, cleanupTimeShifts=4, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5ab5092b=0, tmp=0, head=0, tmp___1=0, NULL=0, retValue_acc=0, tmp=0, waterLevel=1, systemActive=1, tmp=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@343e6c8=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7aad792e=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@701eadc6=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 797]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L257] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L454] int cleanupTimeShifts = 4; [L564] int pumpRunning = 0; [L565] int systemActive = 1; [L888] int waterLevel = 1; [L889] int methaneLevelCritical = 0; [L535] int retValue_acc ; [L536] int tmp ; [L540] FCALL select_helpers() [L541] FCALL select_features() [L542] CALL, EXPR valid_product() [L878] int retValue_acc ; [L881] retValue_acc = 1 [L882] return (retValue_acc); [L542] RET, EXPR valid_product() [L542] tmp = valid_product() [L544] COND TRUE \read(tmp) [L546] FCALL setup() [L547] CALL runTest() [L526] CALL test() [L788] int splverifierCounter ; [L789] int tmp ; [L790] int tmp___0 ; [L791] int tmp___1 ; [L792] int tmp___2 ; [L795] splverifierCounter = 0 Loop: [L797] COND TRUE 1 [L799] COND TRUE splverifierCounter < 4 [L805] tmp = __VERIFIER_nondet_int() [L807] COND FALSE !(\read(tmp)) [L815] tmp___0 = __VERIFIER_nondet_int() [L817] COND FALSE !(\read(tmp___0)) [L825] tmp___2 = __VERIFIER_nondet_int() [L827] COND TRUE \read(tmp___2) [L840] CALL timeShift() [L571] COND FALSE !(\read(pumpRunning)) [L578] COND TRUE \read(systemActive) [L580] CALL processEnvironment() [L652] int tmp ; [L655] COND FALSE !(\read(pumpRunning)) [L670] CALL processEnvironment__wrappee__lowWaterSensor() [L626] int tmp ; [L629] COND FALSE !(\read(pumpRunning)) [L644] CALL processEnvironment__wrappee__highWaterSensor() [L600] int tmp ; [L603] COND TRUE ! pumpRunning [L605] CALL, EXPR isHighWaterLevel() [L749] int retValue_acc ; [L750] int tmp ; [L751] int tmp___0 ; [L755] CALL, EXPR isHighWaterSensorDry() [L968] int retValue_acc ; [L971] COND TRUE waterLevel < 2 [L972] retValue_acc = 1 [L973] return (retValue_acc); [L755] RET, EXPR isHighWaterSensorDry() [L755] tmp = isHighWaterSensorDry() [L757] COND TRUE \read(tmp) [L758] tmp___0 = 0 [L762] retValue_acc = tmp___0 [L763] return (retValue_acc); [L605] RET, EXPR isHighWaterLevel() [L605] tmp = isHighWaterLevel() [L607] COND FALSE !(\read(tmp)) [L613] FCALL processEnvironment__wrappee__base() [L644] RET processEnvironment__wrappee__highWaterSensor() [L670] RET processEnvironment__wrappee__lowWaterSensor() [L580] RET processEnvironment() [L586] CALL __utac_acc__Specification1_spec__1() [L54] int tmp ; [L55] int tmp___0 ; [L59] CALL, EXPR isMethaneLevelCritical() [L927] int retValue_acc ; [L930] retValue_acc = methaneLevelCritical [L931] return (retValue_acc); [L59] RET, EXPR isMethaneLevelCritical() [L59] tmp = isMethaneLevelCritical() [L61] COND FALSE !(\read(tmp)) [L586] RET __utac_acc__Specification1_spec__1() [L840] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-28 09:39:42,971 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)