./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product32.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8d31f386 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_product32.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 41828788c86d3b4773495bb168c9dac21937a6b5 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-06 20:24:05,068 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-06 20:24:05,070 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-06 20:24:05,086 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-06 20:24:05,087 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-06 20:24:05,088 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-06 20:24:05,089 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-06 20:24:05,090 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-06 20:24:05,091 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-06 20:24:05,092 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-06 20:24:05,092 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-06 20:24:05,093 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-06 20:24:05,093 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-06 20:24:05,094 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-06 20:24:05,095 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-06 20:24:05,095 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-06 20:24:05,096 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-06 20:24:05,097 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-06 20:24:05,098 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-06 20:24:05,099 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-06 20:24:05,100 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-06 20:24:05,100 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-06 20:24:05,101 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-06 20:24:05,102 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-06 20:24:05,107 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-06 20:24:05,107 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-06 20:24:05,107 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-06 20:24:05,108 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-06 20:24:05,108 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-06 20:24:05,109 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-06 20:24:05,109 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-06 20:24:05,110 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-06 20:24:05,110 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-06 20:24:05,111 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-06 20:24:05,111 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-06 20:24:05,112 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-06 20:24:05,112 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-06 20:24:05,112 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-06 20:24:05,113 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-06 20:24:05,113 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-06 20:24:05,114 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-06 20:24:05,121 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-07-06 20:24:05,158 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-06 20:24:05,158 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-06 20:24:05,160 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-06 20:24:05,160 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-06 20:24:05,160 INFO L138 SettingsManager]: * Use SBE=true [2021-07-06 20:24:05,161 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-07-06 20:24:05,161 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-07-06 20:24:05,161 INFO L138 SettingsManager]: * Use old map elimination=false [2021-07-06 20:24:05,161 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-07-06 20:24:05,161 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-07-06 20:24:05,162 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-07-06 20:24:05,162 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-06 20:24:05,162 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-06 20:24:05,163 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-07-06 20:24:05,163 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-06 20:24:05,163 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-06 20:24:05,163 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-06 20:24:05,163 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-07-06 20:24:05,163 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-07-06 20:24:05,164 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-07-06 20:24:05,164 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-06 20:24:05,164 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-06 20:24:05,164 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-07-06 20:24:05,164 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-06 20:24:05,165 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-07-06 20:24:05,165 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-06 20:24:05,165 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-06 20:24:05,165 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-06 20:24:05,165 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-06 20:24:05,166 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-06 20:24:05,167 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-07-06 20:24:05,167 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 41828788c86d3b4773495bb168c9dac21937a6b5 [2021-07-06 20:24:05,433 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-06 20:24:05,457 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-06 20:24:05,459 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-06 20:24:05,460 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-06 20:24:05,460 INFO L275 PluginConnector]: CDTParser initialized [2021-07-06 20:24:05,461 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product32.cil.c [2021-07-06 20:24:05,508 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b1c41a42/d45868156dd8484a9829ab417bb3f2df/FLAG324032dea [2021-07-06 20:24:05,920 INFO L306 CDTParser]: Found 1 translation units. [2021-07-06 20:24:05,922 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product32.cil.c [2021-07-06 20:24:05,931 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b1c41a42/d45868156dd8484a9829ab417bb3f2df/FLAG324032dea [2021-07-06 20:24:05,947 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b1c41a42/d45868156dd8484a9829ab417bb3f2df [2021-07-06 20:24:05,953 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-06 20:24:05,955 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-06 20:24:05,956 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-06 20:24:05,956 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-06 20:24:05,959 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-06 20:24:05,959 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:24:05" (1/1) ... [2021-07-06 20:24:05,960 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29d3d445 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:24:05, skipping insertion in model container [2021-07-06 20:24:05,960 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:24:05" (1/1) ... [2021-07-06 20:24:05,965 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-06 20:24:06,005 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-06 20:24:06,201 WARN L224 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_product32.cil.c[14950,14963] [2021-07-06 20:24:06,221 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 20:24:06,227 INFO L203 MainTranslator]: Completed pre-run [2021-07-06 20:24:06,291 WARN L224 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_product32.cil.c[14950,14963] [2021-07-06 20:24:06,302 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 20:24:06,324 INFO L208 MainTranslator]: Completed translation [2021-07-06 20:24:06,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:24:06 WrapperNode [2021-07-06 20:24:06,325 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-06 20:24:06,326 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-06 20:24:06,326 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-06 20:24:06,326 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-06 20:24:06,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:24:06" (1/1) ... [2021-07-06 20:24:06,350 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:24:06" (1/1) ... [2021-07-06 20:24:06,410 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-06 20:24:06,411 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-06 20:24:06,412 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-06 20:24:06,412 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-06 20:24:06,417 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:24:06" (1/1) ... [2021-07-06 20:24:06,417 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:24:06" (1/1) ... [2021-07-06 20:24:06,423 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:24:06" (1/1) ... [2021-07-06 20:24:06,426 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:24:06" (1/1) ... [2021-07-06 20:24:06,431 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:24:06" (1/1) ... [2021-07-06 20:24:06,435 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:24:06" (1/1) ... [2021-07-06 20:24:06,437 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:24:06" (1/1) ... [2021-07-06 20:24:06,440 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-06 20:24:06,447 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-06 20:24:06,448 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-06 20:24:06,448 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-06 20:24:06,448 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:24:06" (1/1) ... [2021-07-06 20:24:06,452 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 20:24:06,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 20:24:06,463 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) [2021-07-06 20:24:06,465 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 [2021-07-06 20:24:06,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-06 20:24:06,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-06 20:24:06,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-06 20:24:06,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-06 20:24:07,119 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-06 20:24:07,119 INFO L299 CfgBuilder]: Removed 168 assume(true) statements. [2021-07-06 20:24:07,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:24:07 BoogieIcfgContainer [2021-07-06 20:24:07,121 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-06 20:24:07,122 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-07-06 20:24:07,122 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-07-06 20:24:07,124 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-07-06 20:24:07,125 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:24:07,125 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.07 08:24:05" (1/3) ... [2021-07-06 20:24:07,126 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@46aaa97c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 08:24:07, skipping insertion in model container [2021-07-06 20:24:07,126 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:24:07,126 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:24:06" (2/3) ... [2021-07-06 20:24:07,126 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@46aaa97c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 08:24:07, skipping insertion in model container [2021-07-06 20:24:07,127 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:24:07,127 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:24:07" (3/3) ... [2021-07-06 20:24:07,128 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product32.cil.c [2021-07-06 20:24:07,158 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-07-06 20:24:07,158 INFO L360 BuchiCegarLoop]: Hoare is false [2021-07-06 20:24:07,158 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-07-06 20:24:07,158 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-06 20:24:07,158 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-06 20:24:07,159 INFO L364 BuchiCegarLoop]: Difference is false [2021-07-06 20:24:07,159 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-06 20:24:07,159 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-07-06 20:24:07,171 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 110 states, 109 states have (on average 1.5137614678899083) internal successors, (165), 109 states have internal predecessors, (165), 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) [2021-07-06 20:24:07,194 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2021-07-06 20:24:07,194 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:24:07,194 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:24:07,200 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 20:24:07,200 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:24:07,200 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-07-06 20:24:07,201 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 110 states, 109 states have (on average 1.5137614678899083) internal successors, (165), 109 states have internal predecessors, (165), 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) [2021-07-06 20:24:07,213 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2021-07-06 20:24:07,213 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:24:07,213 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:24:07,214 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 20:24:07,214 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:24:07,223 INFO L791 eck$LassoCheckResult]: Stem: 63#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(13);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string75.base, #t~string75.offset, 1);call write~init~int(77, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(101, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(116, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(104, #t~string75.base, 4 + #t~string75.offset, 1);call write~init~int(58, #t~string75.base, 5 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 6 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string77.base, #t~string77.offset, 1);call write~init~int(82, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(73, #t~string77.base, 2 + #t~string77.offset, 1);call write~init~int(84, #t~string77.base, 3 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 4 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string79.base, #t~string79.offset, 1);call write~init~int(75, #t~string79.base, 1 + #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 2 + #t~string79.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string81.base, #t~string81.offset, 1);call write~init~int(0, #t~string81.base, 1 + #t~string81.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 8#L-1true havoc main_#res;havoc main_#t~ret67, main_~retValue_acc~6, main_~tmp~8;havoc main_~retValue_acc~6;havoc main_~tmp~8; 79#L875true havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 82#L883true main_#t~ret67 := valid_product_#res;main_~tmp~8 := main_#t~ret67;havoc main_#t~ret67; 48#L804true assume 0 != main_~tmp~8; 6#L778true havoc test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 60#L834-1true [2021-07-06 20:24:07,224 INFO L793 eck$LassoCheckResult]: Loop: 60#L834-1true assume !false; 17#L425true assume test_~splverifierCounter~0 < 4; 102#L426true test_~tmp~3 := test_#t~nondet42;havoc test_#t~nondet42; 107#L434true assume !(0 != test_~tmp~3); 110#L434-1true test_~tmp___0~0 := test_#t~nondet43;havoc test_#t~nondet43; 34#L444true assume !(0 != test_~tmp___0~0); 36#L444-1true test_~tmp___2~0 := test_#t~nondet44;havoc test_#t~nondet44; 67#L454true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 76#L462-1true assume !(0 != ~pumpRunning~0); 32#L499true assume !(0 != ~systemActive~0); 96#L506true havoc __utac_acc__Specification3_spec__1_#t~ret68, __utac_acc__Specification3_spec__1_#t~ret69, __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_~tmp~9, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~9;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 40#L931-1true __utac_acc__Specification3_spec__1_#t~ret68 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~9 := __utac_acc__Specification3_spec__1_#t~ret68;havoc __utac_acc__Specification3_spec__1_#t~ret68; 88#L828true assume 0 != __utac_acc__Specification3_spec__1_~tmp~9; 60#L834-1true [2021-07-06 20:24:07,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:24:07,228 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-07-06 20:24:07,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:24:07,234 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787528339] [2021-07-06 20:24:07,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:24:07,235 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:24:07,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:24:07,384 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:24:07,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:24:07,465 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:24:07,501 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:24:07,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:24:07,503 INFO L82 PathProgramCache]: Analyzing trace with hash -1670755457, now seen corresponding path program 1 times [2021-07-06 20:24:07,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:24:07,504 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396162917] [2021-07-06 20:24:07,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:24:07,505 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:24:07,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 20:24:07,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:24:07,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 20:24:07,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:24:07,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:24:07,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:24:07,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 20:24:07,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 20:24:07,547 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 20:24:07,548 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396162917] [2021-07-06 20:24:07,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396162917] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 20:24:07,548 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 20:24:07,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-06 20:24:07,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484182066] [2021-07-06 20:24:07,551 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-07-06 20:24:07,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 20:24:07,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-06 20:24:07,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 20:24:07,566 INFO L87 Difference]: Start difference. First operand has 110 states, 109 states have (on average 1.5137614678899083) internal successors, (165), 109 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2021-07-06 20:24:07,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 20:24:07,634 INFO L93 Difference]: Finished difference Result 214 states and 306 transitions. [2021-07-06 20:24:07,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-06 20:24:07,635 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 214 states and 306 transitions. [2021-07-06 20:24:07,641 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 138 [2021-07-06 20:24:07,648 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 214 states to 200 states and 291 transitions. [2021-07-06 20:24:07,649 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 200 [2021-07-06 20:24:07,650 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 200 [2021-07-06 20:24:07,651 INFO L73 IsDeterministic]: Start isDeterministic. Operand 200 states and 291 transitions. [2021-07-06 20:24:07,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-06 20:24:07,652 INFO L681 BuchiCegarLoop]: Abstraction has 200 states and 291 transitions. [2021-07-06 20:24:07,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states and 291 transitions. [2021-07-06 20:24:07,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 198. [2021-07-06 20:24:07,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 198 states have (on average 1.4545454545454546) internal successors, (288), 197 states have internal predecessors, (288), 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) [2021-07-06 20:24:07,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 288 transitions. [2021-07-06 20:24:07,687 INFO L704 BuchiCegarLoop]: Abstraction has 198 states and 288 transitions. [2021-07-06 20:24:07,687 INFO L587 BuchiCegarLoop]: Abstraction has 198 states and 288 transitions. [2021-07-06 20:24:07,688 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-07-06 20:24:07,688 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 198 states and 288 transitions. [2021-07-06 20:24:07,690 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 136 [2021-07-06 20:24:07,690 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:24:07,690 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:24:07,691 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 20:24:07,691 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:24:07,691 INFO L791 eck$LassoCheckResult]: Stem: 413#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(13);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string75.base, #t~string75.offset, 1);call write~init~int(77, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(101, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(116, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(104, #t~string75.base, 4 + #t~string75.offset, 1);call write~init~int(58, #t~string75.base, 5 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 6 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string77.base, #t~string77.offset, 1);call write~init~int(82, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(73, #t~string77.base, 2 + #t~string77.offset, 1);call write~init~int(84, #t~string77.base, 3 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 4 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string79.base, #t~string79.offset, 1);call write~init~int(75, #t~string79.base, 1 + #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 2 + #t~string79.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string81.base, #t~string81.offset, 1);call write~init~int(0, #t~string81.base, 1 + #t~string81.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 341#L-1 havoc main_#res;havoc main_#t~ret67, main_~retValue_acc~6, main_~tmp~8;havoc main_~retValue_acc~6;havoc main_~tmp~8; 342#L875 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 426#L883 main_#t~ret67 := valid_product_#res;main_~tmp~8 := main_#t~ret67;havoc main_#t~ret67; 399#L804 assume 0 != main_~tmp~8; 338#L778 havoc test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 339#L834-1 [2021-07-06 20:24:07,691 INFO L793 eck$LassoCheckResult]: Loop: 339#L834-1 assume !false; 359#L425 assume test_~splverifierCounter~0 < 4; 360#L426 test_~tmp~3 := test_#t~nondet42;havoc test_#t~nondet42; 437#L434 assume !(0 != test_~tmp~3); 403#L434-1 test_~tmp___0~0 := test_#t~nondet43;havoc test_#t~nondet43; 385#L444 assume !(0 != test_~tmp___0~0); 354#L444-1 test_~tmp___2~0 := test_#t~nondet44;havoc test_#t~nondet44; 386#L454 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 416#L462-1 assume !(0 != ~pumpRunning~0); 381#L499 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret47, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 366#L557 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret46, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 368#L531-1 assume !(0 != ~pumpRunning~0); 370#L506 havoc __utac_acc__Specification3_spec__1_#t~ret68, __utac_acc__Specification3_spec__1_#t~ret69, __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_~tmp~9, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~9;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 389#L931-1 __utac_acc__Specification3_spec__1_#t~ret68 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~9 := __utac_acc__Specification3_spec__1_#t~ret68;havoc __utac_acc__Specification3_spec__1_#t~ret68; 390#L828 assume 0 != __utac_acc__Specification3_spec__1_~tmp~9; 339#L834-1 [2021-07-06 20:24:07,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:24:07,692 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-07-06 20:24:07,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:24:07,693 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360644629] [2021-07-06 20:24:07,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:24:07,693 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:24:07,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:24:07,750 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:24:07,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:24:07,778 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:24:07,785 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:24:07,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:24:07,786 INFO L82 PathProgramCache]: Analyzing trace with hash -1427585839, now seen corresponding path program 1 times [2021-07-06 20:24:07,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:24:07,786 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356903598] [2021-07-06 20:24:07,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:24:07,786 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:24:07,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:24:07,798 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:24:07,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:24:07,801 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:24:07,813 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:24:07,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:24:07,815 INFO L82 PathProgramCache]: Analyzing trace with hash 1021999211, now seen corresponding path program 1 times [2021-07-06 20:24:07,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:24:07,816 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95198446] [2021-07-06 20:24:07,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:24:07,817 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:24:07,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 20:24:07,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:24:07,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:24:07,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:24:07,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:24:07,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:24:07,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:24:07,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 20:24:07,877 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 20:24:07,877 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95198446] [2021-07-06 20:24:07,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95198446] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 20:24:07,878 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 20:24:07,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-06 20:24:07,878 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959619637] [2021-07-06 20:24:07,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:24:07,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-07-06 20:24:07,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 20:24:07,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-06 20:24:07,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-07-06 20:24:07,968 INFO L87 Difference]: Start difference. First operand 198 states and 288 transitions. cyclomatic complexity: 93 Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) [2021-07-06 20:24:08,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 20:24:08,146 INFO L93 Difference]: Finished difference Result 686 states and 1012 transitions. [2021-07-06 20:24:08,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-06 20:24:08,155 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 686 states and 1012 transitions. [2021-07-06 20:24:08,159 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 494 [2021-07-06 20:24:08,163 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 686 states to 686 states and 1012 transitions. [2021-07-06 20:24:08,163 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 686 [2021-07-06 20:24:08,164 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 686 [2021-07-06 20:24:08,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 686 states and 1012 transitions. [2021-07-06 20:24:08,166 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-06 20:24:08,180 INFO L681 BuchiCegarLoop]: Abstraction has 686 states and 1012 transitions. [2021-07-06 20:24:08,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states and 1012 transitions. [2021-07-06 20:24:08,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 390. [2021-07-06 20:24:08,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 390 states have (on average 1.441025641025641) internal successors, (562), 389 states have internal predecessors, (562), 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) [2021-07-06 20:24:08,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 562 transitions. [2021-07-06 20:24:08,191 INFO L704 BuchiCegarLoop]: Abstraction has 390 states and 562 transitions. [2021-07-06 20:24:08,191 INFO L587 BuchiCegarLoop]: Abstraction has 390 states and 562 transitions. [2021-07-06 20:24:08,191 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-07-06 20:24:08,191 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 390 states and 562 transitions. [2021-07-06 20:24:08,193 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 272 [2021-07-06 20:24:08,193 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:24:08,193 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:24:08,193 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 20:24:08,193 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:24:08,194 INFO L791 eck$LassoCheckResult]: Stem: 1323#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(13);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string75.base, #t~string75.offset, 1);call write~init~int(77, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(101, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(116, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(104, #t~string75.base, 4 + #t~string75.offset, 1);call write~init~int(58, #t~string75.base, 5 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 6 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string77.base, #t~string77.offset, 1);call write~init~int(82, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(73, #t~string77.base, 2 + #t~string77.offset, 1);call write~init~int(84, #t~string77.base, 3 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 4 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string79.base, #t~string79.offset, 1);call write~init~int(75, #t~string79.base, 1 + #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 2 + #t~string79.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string81.base, #t~string81.offset, 1);call write~init~int(0, #t~string81.base, 1 + #t~string81.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1243#L-1 havoc main_#res;havoc main_#t~ret67, main_~retValue_acc~6, main_~tmp~8;havoc main_~retValue_acc~6;havoc main_~tmp~8; 1244#L875 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 1342#L883 main_#t~ret67 := valid_product_#res;main_~tmp~8 := main_#t~ret67;havoc main_#t~ret67; 1305#L804 assume 0 != main_~tmp~8; 1240#L778 havoc test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1241#L834-1 [2021-07-06 20:24:08,194 INFO L793 eck$LassoCheckResult]: Loop: 1241#L834-1 assume !false; 1261#L425 assume test_~splverifierCounter~0 < 4; 1262#L426 test_~tmp~3 := test_#t~nondet42;havoc test_#t~nondet42; 1366#L434 assume !(0 != test_~tmp~3); 1310#L434-1 test_~tmp___0~0 := test_#t~nondet43;havoc test_#t~nondet43; 1288#L444 assume !(0 != test_~tmp___0~0); 1289#L444-1 test_~tmp___2~0 := test_#t~nondet44;havoc test_#t~nondet44; 1290#L454 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1326#L462-1 assume !(0 != ~pumpRunning~0); 1283#L499 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret47, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 1284#L557 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret46, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 1324#L531-1 assume !(0 != ~pumpRunning~0); 1272#L506 havoc __utac_acc__Specification3_spec__1_#t~ret68, __utac_acc__Specification3_spec__1_#t~ret69, __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_~tmp~9, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~9;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 1295#L931-1 __utac_acc__Specification3_spec__1_#t~ret68 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~9 := __utac_acc__Specification3_spec__1_#t~ret68;havoc __utac_acc__Specification3_spec__1_#t~ret68; 1296#L828 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~9);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 1351#L963 __utac_acc__Specification3_spec__1_#t~ret69 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~2 := __utac_acc__Specification3_spec__1_#t~ret69;havoc __utac_acc__Specification3_spec__1_#t~ret69; 1318#L834 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2); 1241#L834-1 [2021-07-06 20:24:08,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:24:08,194 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-07-06 20:24:08,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:24:08,195 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408679648] [2021-07-06 20:24:08,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:24:08,195 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:24:08,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:24:08,217 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:24:08,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:24:08,235 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:24:08,241 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:24:08,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:24:08,242 INFO L82 PathProgramCache]: Analyzing trace with hash -1815416189, now seen corresponding path program 1 times [2021-07-06 20:24:08,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:24:08,242 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462293746] [2021-07-06 20:24:08,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:24:08,242 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:24:08,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:24:08,245 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:24:08,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:24:08,247 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:24:08,248 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:24:08,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:24:08,249 INFO L82 PathProgramCache]: Analyzing trace with hash -1406261347, now seen corresponding path program 1 times [2021-07-06 20:24:08,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:24:08,249 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279162487] [2021-07-06 20:24:08,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:24:08,249 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:24:08,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:24:08,265 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:24:08,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:24:08,287 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:24:08,293 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:24:08,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:24:08,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-07-06 20:24:50,554 WARN L205 SmtUtils]: Spent 42.18 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-07-06 20:24:50,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:24:50,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2127 [2021-07-06 20:25:11,333 WARN L205 SmtUtils]: Spent 20.73 s on a formula simplification that was a NOOP. DAG size: 433 [2021-07-06 20:25:11,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.07 08:25:11 BoogieIcfgContainer [2021-07-06 20:25:11,431 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-07-06 20:25:11,432 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-06 20:25:11,442 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-06 20:25:11,442 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-06 20:25:11,443 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:24:07" (3/4) ... [2021-07-06 20:25:11,444 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-07-06 20:25:11,484 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-06 20:25:11,488 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-06 20:25:11,489 INFO L168 Benchmark]: Toolchain (without parser) took 65533.60 ms. Allocated memory was 48.2 MB in the beginning and 111.1 MB in the end (delta: 62.9 MB). Free memory was 33.1 MB in the beginning and 51.8 MB in the end (delta: -18.7 MB). Peak memory consumption was 43.3 MB. Max. memory is 16.1 GB. [2021-07-06 20:25:11,489 INFO L168 Benchmark]: CDTParser took 1.21 ms. Allocated memory is still 48.2 MB. Free memory is still 28.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 20:25:11,492 INFO L168 Benchmark]: CACSL2BoogieTranslator took 369.10 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 32.9 MB in the beginning and 30.6 MB in the end (delta: 2.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-07-06 20:25:11,493 INFO L168 Benchmark]: Boogie Procedure Inliner took 84.15 ms. Allocated memory is still 58.7 MB. Free memory was 30.6 MB in the beginning and 40.6 MB in the end (delta: -10.0 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2021-07-06 20:25:11,493 INFO L168 Benchmark]: Boogie Preprocessor took 35.52 ms. Allocated memory is still 58.7 MB. Free memory was 40.6 MB in the beginning and 37.9 MB in the end (delta: 2.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 20:25:11,494 INFO L168 Benchmark]: RCFGBuilder took 673.68 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 37.9 MB in the beginning and 40.6 MB in the end (delta: -2.7 MB). Peak memory consumption was 23.4 MB. Max. memory is 16.1 GB. [2021-07-06 20:25:11,494 INFO L168 Benchmark]: BuchiAutomizer took 64309.66 ms. Allocated memory was 71.3 MB in the beginning and 111.1 MB in the end (delta: 39.8 MB). Free memory was 40.2 MB in the beginning and 53.7 MB in the end (delta: -13.6 MB). Peak memory consumption was 62.3 MB. Max. memory is 16.1 GB. [2021-07-06 20:25:11,494 INFO L168 Benchmark]: Witness Printer took 56.26 ms. Allocated memory is still 111.1 MB. Free memory was 53.7 MB in the beginning and 51.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:25:11,496 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.21 ms. Allocated memory is still 48.2 MB. Free memory is still 28.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 369.10 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 32.9 MB in the beginning and 30.6 MB in the end (delta: 2.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 84.15 ms. Allocated memory is still 58.7 MB. Free memory was 30.6 MB in the beginning and 40.6 MB in the end (delta: -10.0 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 35.52 ms. Allocated memory is still 58.7 MB. Free memory was 40.6 MB in the beginning and 37.9 MB in the end (delta: 2.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 673.68 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 37.9 MB in the beginning and 40.6 MB in the end (delta: -2.7 MB). Peak memory consumption was 23.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 64309.66 ms. Allocated memory was 71.3 MB in the beginning and 111.1 MB in the end (delta: 39.8 MB). Free memory was 40.2 MB in the beginning and 53.7 MB in the end (delta: -13.6 MB). Peak memory consumption was 62.3 MB. Max. memory is 16.1 GB. * Witness Printer took 56.26 ms. Allocated memory is still 111.1 MB. Free memory was 53.7 MB in the beginning and 51.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 390 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 64.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 63.8s. Construction of modules took 0.1s. 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 36.6ms AutomataMinimizationTime, 2 MinimizatonAttempts, 298 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 390 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 368 SDtfs, 719 SDslu, 781 SDs, 0 SdLazy, 89 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 124.1ms Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 424]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=12207} State at position 1 is {NULL=0, NULL=12223, NULL=0, retValue_acc=1, NULL=12207, retValue_acc=0, NULL=0, NULL=12221, NULL=12214, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@12b293c9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4012ec7a=71, NULL=12232, NULL=0, methaneLevelCritical=0, NULL=12215, tmp=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3b8645de=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@682c2e2f=0, tmp___1=0, NULL=12218, NULL=0, NULL=0, NULL=12234, NULL=12231, NULL=12217, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1d9b25e=0, cleanupTimeShifts=4, NULL=12220, NULL=12209, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7ca801a0=0, tmp=0, NULL=12230, tmp___0=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@23876f00=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@24a49cf4=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@73441cb2=0, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=12208, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43c4e3a8=0, \result=1, head=0, pumpRunning=0, NULL=12222, \result=0, NULL=0, NULL=0, tmp=1, NULL=0, NULL=0, NULL=12229, NULL=12224, NULL=0, retValue_acc=1, NULL=0, NULL=12226, NULL=12233, NULL=0, NULL=12212, tmp___2=71, NULL=0, NULL=12211, NULL=12210, splverifierCounter=0, NULL=0, NULL=0, \result=0, NULL=12225, NULL=12213, NULL=12228, NULL=12235, tmp___1=0, head=0, NULL=0, NULL=0, tmp=0, NULL=12219, NULL=0, NULL=0, NULL=12227, NULL=12216, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L491] int pumpRunning = 0; [L492] int systemActive = 1; [L719] int cleanupTimeShifts = 4; [L888] int waterLevel = 1; [L889] int methaneLevelCritical = 0; [L795] int retValue_acc ; [L796] int tmp ; [L879] int retValue_acc ; [L882] retValue_acc = 1 [L883] return (retValue_acc); [L802] tmp = valid_product() [L804] COND TRUE \read(tmp) [L415] int splverifierCounter ; [L416] int tmp ; [L417] int tmp___0 ; [L418] int tmp___1 ; [L419] int tmp___2 ; [L422] splverifierCounter = 0 Loop: [L424] COND TRUE 1 [L426] COND TRUE splverifierCounter < 4 [L432] tmp = __VERIFIER_nondet_int() [L434] COND FALSE !(\read(tmp)) [L442] tmp___0 = __VERIFIER_nondet_int() [L444] COND FALSE !(\read(tmp___0)) [L452] tmp___2 = __VERIFIER_nondet_int() [L454] COND TRUE \read(tmp___2) [L705] systemActive = 1 [L499] COND FALSE !(\read(pumpRunning)) [L506] COND TRUE \read(systemActive) [L554] int tmp ; [L557] COND FALSE !(\read(pumpRunning)) [L528] int tmp ; [L531] COND FALSE !(\read(pumpRunning)) [L820] int tmp ; [L821] int tmp___0 ; [L822] int tmp___1 ; [L927] int retValue_acc ; [L930] retValue_acc = methaneLevelCritical [L931] return (retValue_acc); [L826] tmp = isMethaneLevelCritical() [L828] COND FALSE !(\read(tmp)) [L959] int retValue_acc ; [L962] retValue_acc = waterLevel [L963] return (retValue_acc); [L832] tmp___0 = getWaterLevel() [L834] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-07-06 20:25:11,545 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...