./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product03.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 839c364b 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_spec3_product03.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 fd97c2884595bd9a9b703dc95e9a5caeaf3b95ed9b6ed8cf435c9ebd351e9142 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 23:38:14,038 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 23:38:14,066 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 23:38:14,101 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 23:38:14,101 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 23:38:14,102 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 23:38:14,103 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 23:38:14,105 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 23:38:14,107 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 23:38:14,108 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 23:38:14,109 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 23:38:14,113 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 23:38:14,113 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 23:38:14,119 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 23:38:14,122 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 23:38:14,124 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 23:38:14,126 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 23:38:14,127 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 23:38:14,129 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 23:38:14,134 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 23:38:14,137 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 23:38:14,140 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 23:38:14,141 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 23:38:14,143 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 23:38:14,145 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 23:38:14,147 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 23:38:14,148 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 23:38:14,148 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 23:38:14,149 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 23:38:14,150 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 23:38:14,151 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 23:38:14,152 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 23:38:14,153 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 23:38:14,154 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 23:38:14,155 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 23:38:14,156 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 23:38:14,156 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 23:38:14,157 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 23:38:14,157 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 23:38:14,157 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 23:38:14,158 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 23:38:14,159 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-14 23:38:14,188 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 23:38:14,190 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 23:38:14,190 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 23:38:14,191 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 23:38:14,192 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 23:38:14,192 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 23:38:14,193 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 23:38:14,193 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-14 23:38:14,193 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-14 23:38:14,193 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-14 23:38:14,194 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-14 23:38:14,194 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-14 23:38:14,194 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-14 23:38:14,195 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 23:38:14,195 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-14 23:38:14,195 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-14 23:38:14,195 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 23:38:14,195 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-14 23:38:14,196 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 23:38:14,196 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-14 23:38:14,196 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-14 23:38:14,196 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-14 23:38:14,196 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-14 23:38:14,197 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 23:38:14,197 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-14 23:38:14,197 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 23:38:14,197 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-14 23:38:14,197 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 23:38:14,198 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 23:38:14,198 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 23:38:14,198 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 23:38:14,198 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 23:38:14,199 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-14 23:38:14,199 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd97c2884595bd9a9b703dc95e9a5caeaf3b95ed9b6ed8cf435c9ebd351e9142 [2021-12-14 23:38:14,463 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 23:38:14,489 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 23:38:14,491 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 23:38:14,492 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 23:38:14,493 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 23:38:14,494 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product03.cil.c [2021-12-14 23:38:14,569 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a65e37ae1/dd9d4e72b54445c7b5a383c7c2b8f761/FLAG6b8b7d55b [2021-12-14 23:38:15,052 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 23:38:15,053 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product03.cil.c [2021-12-14 23:38:15,076 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a65e37ae1/dd9d4e72b54445c7b5a383c7c2b8f761/FLAG6b8b7d55b [2021-12-14 23:38:15,567 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a65e37ae1/dd9d4e72b54445c7b5a383c7c2b8f761 [2021-12-14 23:38:15,569 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 23:38:15,570 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 23:38:15,572 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 23:38:15,572 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 23:38:15,574 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 23:38:15,575 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:38:15" (1/1) ... [2021-12-14 23:38:15,576 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34a55e12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:15, skipping insertion in model container [2021-12-14 23:38:15,576 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:38:15" (1/1) ... [2021-12-14 23:38:15,582 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 23:38:15,622 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 23:38:15,852 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_spec3_product03.cil.c[14430,14443] [2021-12-14 23:38:15,862 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 23:38:15,870 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 23:38:15,954 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_spec3_product03.cil.c[14430,14443] [2021-12-14 23:38:15,961 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 23:38:15,979 INFO L208 MainTranslator]: Completed translation [2021-12-14 23:38:15,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:15 WrapperNode [2021-12-14 23:38:15,981 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 23:38:15,982 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 23:38:15,982 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 23:38:15,982 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 23:38:15,988 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:15" (1/1) ... [2021-12-14 23:38:16,012 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:15" (1/1) ... [2021-12-14 23:38:16,060 INFO L137 Inliner]: procedures = 50, calls = 147, calls flagged for inlining = 44, calls inlined = 37, statements flattened = 318 [2021-12-14 23:38:16,062 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 23:38:16,063 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 23:38:16,063 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 23:38:16,063 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 23:38:16,070 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:15" (1/1) ... [2021-12-14 23:38:16,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:15" (1/1) ... [2021-12-14 23:38:16,079 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:15" (1/1) ... [2021-12-14 23:38:16,080 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:15" (1/1) ... [2021-12-14 23:38:16,098 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:15" (1/1) ... [2021-12-14 23:38:16,106 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:15" (1/1) ... [2021-12-14 23:38:16,109 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:15" (1/1) ... [2021-12-14 23:38:16,111 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 23:38:16,112 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 23:38:16,112 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 23:38:16,112 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 23:38:16,117 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:15" (1/1) ... [2021-12-14 23:38:16,123 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:38:16,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:38:16,141 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) [2021-12-14 23:38:16,145 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 [2021-12-14 23:38:16,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 23:38:16,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 23:38:16,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 23:38:16,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 23:38:16,274 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 23:38:16,276 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 23:38:16,561 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 23:38:16,569 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 23:38:16,570 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-14 23:38:16,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:38:16 BoogieIcfgContainer [2021-12-14 23:38:16,572 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 23:38:16,575 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-14 23:38:16,575 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-14 23:38:16,578 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-14 23:38:16,579 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:38:16,580 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.12 11:38:15" (1/3) ... [2021-12-14 23:38:16,580 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@505988f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.12 11:38:16, skipping insertion in model container [2021-12-14 23:38:16,581 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:38:16,581 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:15" (2/3) ... [2021-12-14 23:38:16,581 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@505988f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.12 11:38:16, skipping insertion in model container [2021-12-14 23:38:16,581 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:38:16,581 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:38:16" (3/3) ... [2021-12-14 23:38:16,583 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product03.cil.c [2021-12-14 23:38:16,629 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-14 23:38:16,630 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-14 23:38:16,630 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-14 23:38:16,630 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-14 23:38:16,630 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-14 23:38:16,630 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-14 23:38:16,630 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-14 23:38:16,631 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-14 23:38:16,647 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 85 states, 84 states have (on average 1.380952380952381) internal successors, (116), 84 states have internal predecessors, (116), 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) [2021-12-14 23:38:16,672 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 54 [2021-12-14 23:38:16,672 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:38:16,673 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:38:16,679 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:38:16,680 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:38:16,680 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-14 23:38:16,682 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 85 states, 84 states have (on average 1.380952380952381) internal successors, (116), 84 states have internal predecessors, (116), 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) [2021-12-14 23:38:16,692 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 54 [2021-12-14 23:38:16,692 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:38:16,692 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:38:16,694 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:38:16,694 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:38:16,703 INFO L791 eck$LassoCheckResult]: Stem: 62#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(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);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);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 47#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret44#1, main_~retValue_acc~7#1, main_~tmp~5#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 40#L643true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 34#L636true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~6#1;havoc valid_product_~retValue_acc~6#1;valid_product_~retValue_acc~6#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~6#1; 56#L651true main_#t~ret44#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret44#1;havoc main_#t~ret44#1; 66#L782true assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 43#L759true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 46#L65-2true [2021-12-14 23:38:16,704 INFO L793 eck$LassoCheckResult]: Loop: 46#L65-2true assume !false; 41#L66true assume test_~splverifierCounter~0#1 < 4; 60#L67true test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 74#L75true assume !(0 != test_~tmp~0#1); 58#L75-2true test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 44#L85true assume !(0 != test_~tmp___0~0#1); 6#L85-2true test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 26#L95true assume 0 != test_~tmp___2~0#1; 22#L101-2true assume { :begin_inline_timeShift } true; 75#L137true assume !(0 != ~pumpRunning~0); 57#L137-2true assume !(0 != ~systemActive~0); 42#L144-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret41#1, __utac_acc__Specification3_spec__1_#t~ret42#1, __utac_acc__Specification3_spec__1_#t~ret43#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~1#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~1#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1; 37#L839true __utac_acc__Specification3_spec__1_#t~ret41#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret41#1;havoc __utac_acc__Specification3_spec__1_#t~ret41#1; 84#L675true assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1; 53#L681-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 30#L154true assume { :end_inline_timeShift } true; 46#L65-2true [2021-12-14 23:38:16,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:38:16,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2021-12-14 23:38:16,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:38:16,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816343599] [2021-12-14 23:38:16,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:38:16,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:38:16,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:16,876 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:38:16,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:16,930 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:38:16,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:38:16,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1802248790, now seen corresponding path program 1 times [2021-12-14 23:38:16,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:38:16,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383315020] [2021-12-14 23:38:16,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:38:16,935 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:38:16,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:16,959 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:38:16,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:16,971 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:38:16,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:38:16,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1137299430, now seen corresponding path program 1 times [2021-12-14 23:38:16,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:38:16,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527503983] [2021-12-14 23:38:16,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:38:16,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:38:16,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:38:17,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:38:17,077 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 23:38:17,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527503983] [2021-12-14 23:38:17,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527503983] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 23:38:17,079 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 23:38:17,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 23:38:17,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416642286] [2021-12-14 23:38:17,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 23:38:17,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 23:38:17,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 23:38:17,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-14 23:38:17,268 INFO L87 Difference]: Start difference. First operand has 85 states, 84 states have (on average 1.380952380952381) internal successors, (116), 84 states have internal predecessors, (116), 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) [2021-12-14 23:38:17,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 23:38:17,413 INFO L93 Difference]: Finished difference Result 227 states and 290 transitions. [2021-12-14 23:38:17,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 23:38:17,420 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 227 states and 290 transitions. [2021-12-14 23:38:17,426 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 143 [2021-12-14 23:38:17,435 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 227 states to 197 states and 260 transitions. [2021-12-14 23:38:17,437 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 197 [2021-12-14 23:38:17,440 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 197 [2021-12-14 23:38:17,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 197 states and 260 transitions. [2021-12-14 23:38:17,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 23:38:17,445 INFO L681 BuchiCegarLoop]: Abstraction has 197 states and 260 transitions. [2021-12-14 23:38:17,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states and 260 transitions. [2021-12-14 23:38:17,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 130. [2021-12-14 23:38:17,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 130 states have (on average 1.323076923076923) internal successors, (172), 129 states have internal predecessors, (172), 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) [2021-12-14 23:38:17,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 172 transitions. [2021-12-14 23:38:17,482 INFO L704 BuchiCegarLoop]: Abstraction has 130 states and 172 transitions. [2021-12-14 23:38:17,482 INFO L587 BuchiCegarLoop]: Abstraction has 130 states and 172 transitions. [2021-12-14 23:38:17,482 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-14 23:38:17,482 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 130 states and 172 transitions. [2021-12-14 23:38:17,484 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 94 [2021-12-14 23:38:17,484 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:38:17,485 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:38:17,485 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:38:17,485 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:38:17,485 INFO L791 eck$LassoCheckResult]: Stem: 398#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(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);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);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 388#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret44#1, main_~retValue_acc~7#1, main_~tmp~5#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 381#L643 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 375#L636 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~6#1;havoc valid_product_~retValue_acc~6#1;valid_product_~retValue_acc~6#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~6#1; 376#L651 main_#t~ret44#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret44#1;havoc main_#t~ret44#1; 394#L782 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 385#L759 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 370#L65-2 [2021-12-14 23:38:17,486 INFO L793 eck$LassoCheckResult]: Loop: 370#L65-2 assume !false; 382#L66 assume test_~splverifierCounter~0#1 < 4; 383#L67 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 396#L75 assume !(0 != test_~tmp~0#1); 349#L75-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 386#L85 assume !(0 != test_~tmp___0~0#1); 336#L85-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 337#L95 assume 0 != test_~tmp___2~0#1; 362#L101-2 assume { :begin_inline_timeShift } true; 363#L137 assume !(0 != ~pumpRunning~0); 368#L137-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true; 352#L161 assume { :end_inline_processEnvironment } true; 353#L144-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret41#1, __utac_acc__Specification3_spec__1_#t~ret42#1, __utac_acc__Specification3_spec__1_#t~ret43#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~1#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~1#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1; 377#L839 __utac_acc__Specification3_spec__1_#t~ret41#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret41#1;havoc __utac_acc__Specification3_spec__1_#t~ret41#1; 378#L675 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1; 361#L681-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 369#L154 assume { :end_inline_timeShift } true; 370#L65-2 [2021-12-14 23:38:17,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:38:17,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2021-12-14 23:38:17,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:38:17,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219687081] [2021-12-14 23:38:17,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:38:17,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:38:17,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:17,499 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:38:17,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:17,513 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:38:17,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:38:17,517 INFO L85 PathProgramCache]: Analyzing trace with hash 663614206, now seen corresponding path program 1 times [2021-12-14 23:38:17,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:38:17,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991601310] [2021-12-14 23:38:17,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:38:17,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:38:17,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:17,526 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:38:17,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:17,535 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:38:17,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:38:17,539 INFO L85 PathProgramCache]: Analyzing trace with hash -268067398, now seen corresponding path program 1 times [2021-12-14 23:38:17,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:38:17,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978223118] [2021-12-14 23:38:17,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:38:17,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:38:17,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:38:17,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:38:17,614 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 23:38:17,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978223118] [2021-12-14 23:38:17,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978223118] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 23:38:17,615 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 23:38:17,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 23:38:17,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409870716] [2021-12-14 23:38:17,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 23:38:17,710 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 23:38:17,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 23:38:17,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 23:38:17,711 INFO L87 Difference]: Start difference. First operand 130 states and 172 transitions. cyclomatic complexity: 45 Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 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) [2021-12-14 23:38:17,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 23:38:17,786 INFO L93 Difference]: Finished difference Result 429 states and 571 transitions. [2021-12-14 23:38:17,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-14 23:38:17,787 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 429 states and 571 transitions. [2021-12-14 23:38:17,791 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 331 [2021-12-14 23:38:17,794 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 429 states to 429 states and 571 transitions. [2021-12-14 23:38:17,795 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 429 [2021-12-14 23:38:17,795 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 429 [2021-12-14 23:38:17,795 INFO L73 IsDeterministic]: Start isDeterministic. Operand 429 states and 571 transitions. [2021-12-14 23:38:17,797 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 23:38:17,797 INFO L681 BuchiCegarLoop]: Abstraction has 429 states and 571 transitions. [2021-12-14 23:38:17,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states and 571 transitions. [2021-12-14 23:38:17,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 253. [2021-12-14 23:38:17,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 253 states have (on average 1.300395256916996) internal successors, (329), 252 states have internal predecessors, (329), 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) [2021-12-14 23:38:17,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 329 transitions. [2021-12-14 23:38:17,809 INFO L704 BuchiCegarLoop]: Abstraction has 253 states and 329 transitions. [2021-12-14 23:38:17,809 INFO L587 BuchiCegarLoop]: Abstraction has 253 states and 329 transitions. [2021-12-14 23:38:17,810 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-14 23:38:17,810 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 253 states and 329 transitions. [2021-12-14 23:38:17,811 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 188 [2021-12-14 23:38:17,811 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:38:17,811 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:38:17,812 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:38:17,812 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] [2021-12-14 23:38:17,812 INFO L791 eck$LassoCheckResult]: Stem: 993#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(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);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);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 975#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret44#1, main_~retValue_acc~7#1, main_~tmp~5#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 963#L643 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 957#L636 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~6#1;havoc valid_product_~retValue_acc~6#1;valid_product_~retValue_acc~6#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~6#1; 958#L651 main_#t~ret44#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret44#1;havoc main_#t~ret44#1; 986#L782 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 968#L759 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 969#L65-2 [2021-12-14 23:38:17,813 INFO L793 eck$LassoCheckResult]: Loop: 969#L65-2 assume !false; 1095#L66 assume test_~splverifierCounter~0#1 < 4; 1096#L67 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 1156#L75 assume !(0 != test_~tmp~0#1); 1154#L75-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 1153#L85 assume !(0 != test_~tmp___0~0#1); 1151#L85-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 1150#L95 assume 0 != test_~tmp___2~0#1; 941#L101-2 assume { :begin_inline_timeShift } true; 942#L137 assume !(0 != ~pumpRunning~0); 1118#L137-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true; 1113#L161 assume { :end_inline_processEnvironment } true; 1108#L144-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret41#1, __utac_acc__Specification3_spec__1_#t~ret42#1, __utac_acc__Specification3_spec__1_#t~ret43#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~1#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~1#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1; 1107#L839 __utac_acc__Specification3_spec__1_#t~ret41#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret41#1;havoc __utac_acc__Specification3_spec__1_#t~ret41#1; 1106#L675 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~4#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;havoc getWaterLevel_~retValue_acc~9#1;getWaterLevel_~retValue_acc~9#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~9#1; 1105#L871 __utac_acc__Specification3_spec__1_#t~ret42#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~1#1 := __utac_acc__Specification3_spec__1_#t~ret42#1;havoc __utac_acc__Specification3_spec__1_#t~ret42#1; 1102#L681 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~1#1); 1101#L681-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1100#L154 assume { :end_inline_timeShift } true; 969#L65-2 [2021-12-14 23:38:17,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:38:17,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2021-12-14 23:38:17,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:38:17,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410718525] [2021-12-14 23:38:17,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:38:17,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:38:17,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:17,821 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:38:17,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:17,831 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:38:17,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:38:17,831 INFO L85 PathProgramCache]: Analyzing trace with hash 2079342897, now seen corresponding path program 1 times [2021-12-14 23:38:17,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:38:17,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010544582] [2021-12-14 23:38:17,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:38:17,832 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:38:17,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:17,836 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:38:17,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:17,839 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:38:17,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:38:17,840 INFO L85 PathProgramCache]: Analyzing trace with hash 86519021, now seen corresponding path program 1 times [2021-12-14 23:38:17,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:38:17,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476928150] [2021-12-14 23:38:17,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:38:17,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:38:17,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:17,849 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:38:17,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:17,861 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:38:20,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.12 11:38:20 BoogieIcfgContainer [2021-12-14 23:38:20,744 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-14 23:38:20,744 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-14 23:38:20,744 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-14 23:38:20,745 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-14 23:38:20,745 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:38:16" (3/4) ... [2021-12-14 23:38:20,747 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-14 23:38:20,792 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-14 23:38:20,793 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-14 23:38:20,794 INFO L158 Benchmark]: Toolchain (without parser) took 5222.99ms. Allocated memory was 86.0MB in the beginning and 155.2MB in the end (delta: 69.2MB). Free memory was 52.7MB in the beginning and 89.1MB in the end (delta: -36.4MB). Peak memory consumption was 33.7MB. Max. memory is 16.1GB. [2021-12-14 23:38:20,794 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 86.0MB. Free memory was 43.0MB in the beginning and 43.0MB in the end (delta: 44.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 23:38:20,795 INFO L158 Benchmark]: CACSL2BoogieTranslator took 409.49ms. Allocated memory was 86.0MB in the beginning and 127.9MB in the end (delta: 41.9MB). Free memory was 52.6MB in the beginning and 96.8MB in the end (delta: -44.3MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. [2021-12-14 23:38:20,795 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.08ms. Allocated memory is still 127.9MB. Free memory was 96.8MB in the beginning and 94.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 23:38:20,796 INFO L158 Benchmark]: Boogie Preprocessor took 48.26ms. Allocated memory is still 127.9MB. Free memory was 94.2MB in the beginning and 92.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 23:38:20,796 INFO L158 Benchmark]: RCFGBuilder took 460.95ms. Allocated memory is still 127.9MB. Free memory was 92.6MB in the beginning and 76.9MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-14 23:38:20,797 INFO L158 Benchmark]: BuchiAutomizer took 4168.76ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 76.9MB in the beginning and 91.1MB in the end (delta: -14.2MB). Peak memory consumption was 53.2MB. Max. memory is 16.1GB. [2021-12-14 23:38:20,797 INFO L158 Benchmark]: Witness Printer took 48.51ms. Allocated memory is still 155.2MB. Free memory was 91.1MB in the beginning and 89.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 23:38:20,800 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 86.0MB. Free memory was 43.0MB in the beginning and 43.0MB in the end (delta: 44.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 409.49ms. Allocated memory was 86.0MB in the beginning and 127.9MB in the end (delta: 41.9MB). Free memory was 52.6MB in the beginning and 96.8MB in the end (delta: -44.3MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.08ms. Allocated memory is still 127.9MB. Free memory was 96.8MB in the beginning and 94.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.26ms. Allocated memory is still 127.9MB. Free memory was 94.2MB in the beginning and 92.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 460.95ms. Allocated memory is still 127.9MB. Free memory was 92.6MB in the beginning and 76.9MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 4168.76ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 76.9MB in the beginning and 91.1MB in the end (delta: -14.2MB). Peak memory consumption was 53.2MB. Max. memory is 16.1GB. * Witness Printer took 48.51ms. Allocated memory is still 155.2MB. Free memory was 91.1MB in the beginning and 89.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 253 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 243 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 253 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 777 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 777 mSDsluCounter, 1169 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 936 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 83 IncrementalHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 233 mSDtfsCounter, 83 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 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: 65]: 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, retValue_acc=0, NULL=0, head=0, pumpRunning=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@13f8793d=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@56a0b708=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6cde60ae=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@78341f01=29, methaneLevelCritical=0, tmp___0=1, retValue_acc=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5bab0107=0, tmp=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@79a9dd7d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@667f82e4=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@752bfa09=0, tmp___2=29, tmp___1=0, tmp=0, cleanupTimeShifts=4, tmp=1, \result=0, head=0, \result=1, tmp___1=0, NULL=0, waterLevel=1, systemActive=1} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 65]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L129] int pumpRunning = 0; [L130] int systemActive = 1; [L421] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L700] int cleanupTimeShifts = 4; [L796] int waterLevel = 1; [L797] int methaneLevelCritical = 0; [L773] int retValue_acc ; [L774] int tmp ; [L778] FCALL select_helpers() [L779] FCALL select_features() [L780] CALL, EXPR valid_product() [L647] int retValue_acc ; [L650] retValue_acc = 1 [L651] return (retValue_acc); [L780] RET, EXPR valid_product() [L780] tmp = valid_product() [L782] COND TRUE \read(tmp) [L784] FCALL setup() [L785] CALL runTest() [L767] CALL test() [L56] int splverifierCounter ; [L57] int tmp ; [L58] int tmp___0 ; [L59] int tmp___1 ; [L60] int tmp___2 ; [L63] splverifierCounter = 0 Loop: [L65] COND TRUE 1 [L67] COND TRUE splverifierCounter < 4 [L73] tmp = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp)) [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___0)) [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND TRUE \read(tmp___2) [L110] CALL timeShift() [L137] COND FALSE !(\read(pumpRunning)) [L144] COND TRUE \read(systemActive) [L146] FCALL processEnvironment() [L152] CALL __utac_acc__Specification3_spec__1() [L667] int tmp ; [L668] int tmp___0 ; [L669] int tmp___1 ; [L673] CALL, EXPR isMethaneLevelCritical() [L835] int retValue_acc ; [L838] retValue_acc = methaneLevelCritical [L839] return (retValue_acc); [L673] RET, EXPR isMethaneLevelCritical() [L673] tmp = isMethaneLevelCritical() [L675] COND FALSE !(\read(tmp)) [L679] CALL, EXPR getWaterLevel() [L867] int retValue_acc ; [L870] retValue_acc = waterLevel [L871] return (retValue_acc); [L679] RET, EXPR getWaterLevel() [L679] tmp___0 = getWaterLevel() [L681] COND FALSE !(tmp___0 == 2) [L152] RET __utac_acc__Specification3_spec__1() [L110] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-14 23:38:20,854 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)