./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product64.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_3ba9c603-7be2-4014-99c0-17a443cb99e2/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_3ba9c603-7be2-4014-99c0-17a443cb99e2/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3ba9c603-7be2-4014-99c0-17a443cb99e2/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3ba9c603-7be2-4014-99c0-17a443cb99e2/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product64.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3ba9c603-7be2-4014-99c0-17a443cb99e2/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3ba9c603-7be2-4014-99c0-17a443cb99e2/bin/uautomizer --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 e54df5218807ebc1aaf13f5cda92067864bfb3d3 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.0-a4ecdab [2020-11-29 19:22:59,371 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:22:59,382 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:22:59,449 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:22:59,450 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:22:59,457 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:22:59,461 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:22:59,471 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:22:59,475 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:22:59,482 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:22:59,484 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:22:59,487 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:22:59,488 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:22:59,492 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:22:59,494 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:22:59,498 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:22:59,500 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:22:59,503 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:22:59,511 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:22:59,520 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:22:59,523 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:22:59,526 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:22:59,529 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:22:59,531 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:22:59,534 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:22:59,535 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:22:59,536 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:22:59,537 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:22:59,538 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:22:59,539 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:22:59,540 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:22:59,541 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:22:59,542 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:22:59,544 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:22:59,545 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:22:59,545 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:22:59,546 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:22:59,547 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:22:59,547 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:22:59,548 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:22:59,549 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:22:59,550 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3ba9c603-7be2-4014-99c0-17a443cb99e2/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 19:22:59,597 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:22:59,601 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:22:59,604 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:22:59,604 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:22:59,605 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:22:59,605 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 19:22:59,605 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 19:22:59,606 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 19:22:59,606 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 19:22:59,606 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 19:22:59,608 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 19:22:59,608 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:22:59,609 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:22:59,609 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 19:22:59,609 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:22:59,609 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:22:59,610 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:22:59,610 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 19:22:59,610 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 19:22:59,611 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 19:22:59,611 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:22:59,611 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:22:59,612 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 19:22:59,612 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:22:59,612 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 19:22:59,612 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:22:59,613 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:22:59,613 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 19:22:59,614 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:22:59,616 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:22:59,617 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:22:59,617 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 19:22:59,618 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 19:22:59,619 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:/tmp/vcloud-vcloud-master/worker/run_dir_3ba9c603-7be2-4014-99c0-17a443cb99e2/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3ba9c603-7be2-4014-99c0-17a443cb99e2/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e54df5218807ebc1aaf13f5cda92067864bfb3d3 [2020-11-29 19:22:59,943 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:22:59,988 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:22:59,994 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:22:59,996 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:22:59,997 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:22:59,998 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3ba9c603-7be2-4014-99c0-17a443cb99e2/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product64.cil.c [2020-11-29 19:23:00,113 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3ba9c603-7be2-4014-99c0-17a443cb99e2/bin/uautomizer/data/b41719016/23ae3c99a5da43bdad44b529518ef422/FLAG04e8c8453 [2020-11-29 19:23:00,820 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:23:00,821 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3ba9c603-7be2-4014-99c0-17a443cb99e2/sv-benchmarks/c/product-lines/minepump_spec2_product64.cil.c [2020-11-29 19:23:00,850 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3ba9c603-7be2-4014-99c0-17a443cb99e2/bin/uautomizer/data/b41719016/23ae3c99a5da43bdad44b529518ef422/FLAG04e8c8453 [2020-11-29 19:23:01,058 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3ba9c603-7be2-4014-99c0-17a443cb99e2/bin/uautomizer/data/b41719016/23ae3c99a5da43bdad44b529518ef422 [2020-11-29 19:23:01,061 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:23:01,063 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:23:01,071 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:23:01,071 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:23:01,074 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:23:01,075 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:23:01" (1/1) ... [2020-11-29 19:23:01,078 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bde2cb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:23:01, skipping insertion in model container [2020-11-29 19:23:01,078 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:23:01" (1/1) ... [2020-11-29 19:23:01,088 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:23:01,149 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:23:01,612 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:23:01,633 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:23:01,781 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:23:01,838 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:23:01,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:23:01 WrapperNode [2020-11-29 19:23:01,843 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:23:01,844 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:23:01,845 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:23:01,846 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:23:01,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:23:01" (1/1) ... [2020-11-29 19:23:01,898 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:23:01" (1/1) ... [2020-11-29 19:23:02,003 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:23:02,009 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:23:02,010 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:23:02,010 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:23:02,019 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:23:01" (1/1) ... [2020-11-29 19:23:02,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:23:01" (1/1) ... [2020-11-29 19:23:02,039 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:23:01" (1/1) ... [2020-11-29 19:23:02,040 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:23:01" (1/1) ... [2020-11-29 19:23:02,100 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:23:01" (1/1) ... [2020-11-29 19:23:02,129 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:23:01" (1/1) ... [2020-11-29 19:23:02,135 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:23:01" (1/1) ... [2020-11-29 19:23:02,146 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:23:02,147 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:23:02,147 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:23:02,147 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:23:02,149 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:23:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3ba9c603-7be2-4014-99c0-17a443cb99e2/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:23:02,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:23:02,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:23:02,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:23:02,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:23:04,299 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:23:04,299 INFO L298 CfgBuilder]: Removed 362 assume(true) statements. [2020-11-29 19:23:04,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:23:04 BoogieIcfgContainer [2020-11-29 19:23:04,302 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:23:04,304 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 19:23:04,304 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 19:23:04,308 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 19:23:04,309 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:23:04,310 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 07:23:01" (1/3) ... [2020-11-29 19:23:04,312 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2c8720d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:23:04, skipping insertion in model container [2020-11-29 19:23:04,312 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:23:04,312 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:23:01" (2/3) ... [2020-11-29 19:23:04,313 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2c8720d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:23:04, skipping insertion in model container [2020-11-29 19:23:04,313 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:23:04,313 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:23:04" (3/3) ... [2020-11-29 19:23:04,315 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product64.cil.c [2020-11-29 19:23:04,374 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 19:23:04,375 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 19:23:04,375 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 19:23:04,375 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:23:04,376 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:23:04,376 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 19:23:04,376 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:23:04,376 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 19:23:04,402 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 231 states. [2020-11-29 19:23:04,446 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 151 [2020-11-29 19:23:04,446 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:23:04,447 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:23:04,458 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:23:04,458 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:23:04,459 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 19:23:04,459 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 231 states. [2020-11-29 19:23:04,474 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 151 [2020-11-29 19:23:04,474 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:23:04,475 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:23:04,476 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:23:04,477 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:23:04,484 INFO L794 eck$LassoCheckResult]: Stem: 87#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~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(13);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string40.base, #t~string40.offset, 1);call write~init~int(77, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(101, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(116, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(104, #t~string40.base, 4 + #t~string40.offset, 1);call write~init~int(58, #t~string40.base, 5 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 6 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string42.base, #t~string42.offset, 1);call write~init~int(82, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(73, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(84, #t~string42.base, 3 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 4 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string44.base, #t~string44.offset, 1);call write~init~int(75, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 2 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string46.base, #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 1 + #t~string46.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(21);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(30);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(9);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 5#L-1true havoc main_#res;havoc main_#t~ret47, main_~retValue_acc~10, main_~tmp~8;havoc main_~retValue_acc~10;havoc main_~tmp~8; 133#L67true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 58#L75true main_#t~ret47 := valid_product_#res;main_~tmp~8 := main_#t~ret47;havoc main_#t~ret47; 217#L663true assume 0 != main_~tmp~8; 73#L639true ~methAndRunningLastTime~0 := 0; 209#L443true havoc test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 212#L454-1true [2020-11-29 19:23:04,485 INFO L796 eck$LassoCheckResult]: Loop: 212#L454-1true assume !false; 104#L370true assume test_~splverifierCounter~0 < 4; 223#L371true test_~tmp~6 := test_#t~nondet31;havoc test_#t~nondet31; 98#L379true assume !(0 != test_~tmp~6); 99#L379-1true test_~tmp___0~2 := test_#t~nondet32;havoc test_#t~nondet32; 48#L389true assume !(0 != test_~tmp___0~2); 37#L389-1true test_~tmp___2~0 := test_#t~nondet33;havoc test_#t~nondet33; 215#L399true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 96#L407-1true assume !(0 != ~pumpRunning~0); 137#L100true assume !(0 != ~systemActive~0); 225#L107true havoc __utac_acc__Specification2_spec__2_#t~ret35, __utac_acc__Specification2_spec__2_#t~ret36, __utac_acc__Specification2_spec__2_~tmp~7, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~7;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 188#L520-5true __utac_acc__Specification2_spec__2_#t~ret35 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~7 := __utac_acc__Specification2_spec__2_#t~ret35;havoc __utac_acc__Specification2_spec__2_#t~ret35; 207#L454true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7);~methAndRunningLastTime~0 := 0; 212#L454-1true [2020-11-29 19:23:04,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:23:04,491 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-11-29 19:23:04,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:23:04,500 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162385886] [2020-11-29 19:23:04,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:23:04,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:23:04,893 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:23:05,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:23:05,069 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:23:05,141 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:23:05,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:23:05,150 INFO L82 PathProgramCache]: Analyzing trace with hash 18699286, now seen corresponding path program 1 times [2020-11-29 19:23:05,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:23:05,152 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923684544] [2020-11-29 19:23:05,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:23:05,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:23:05,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:23:05,241 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923684544] [2020-11-29 19:23:05,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:23:05,243 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:23:05,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408518741] [2020-11-29 19:23:05,250 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 19:23:05,251 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:23:05,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:23:05,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:23:05,273 INFO L87 Difference]: Start difference. First operand 231 states. Second operand 3 states. [2020-11-29 19:23:05,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:23:05,427 INFO L93 Difference]: Finished difference Result 449 states and 661 transitions. [2020-11-29 19:23:05,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:23:05,431 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 449 states and 661 transitions. [2020-11-29 19:23:05,450 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 294 [2020-11-29 19:23:05,478 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 449 states to 435 states and 646 transitions. [2020-11-29 19:23:05,479 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 435 [2020-11-29 19:23:05,482 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 435 [2020-11-29 19:23:05,483 INFO L73 IsDeterministic]: Start isDeterministic. Operand 435 states and 646 transitions. [2020-11-29 19:23:05,487 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:23:05,487 INFO L691 BuchiCegarLoop]: Abstraction has 435 states and 646 transitions. [2020-11-29 19:23:05,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states and 646 transitions. [2020-11-29 19:23:05,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 433. [2020-11-29 19:23:05,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 433 states. [2020-11-29 19:23:05,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 643 transitions. [2020-11-29 19:23:05,560 INFO L714 BuchiCegarLoop]: Abstraction has 433 states and 643 transitions. [2020-11-29 19:23:05,560 INFO L594 BuchiCegarLoop]: Abstraction has 433 states and 643 transitions. [2020-11-29 19:23:05,560 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 19:23:05,561 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 433 states and 643 transitions. [2020-11-29 19:23:05,575 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 292 [2020-11-29 19:23:05,576 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:23:05,576 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:23:05,577 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:23:05,578 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:23:05,579 INFO L794 eck$LassoCheckResult]: Stem: 828#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~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(13);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string40.base, #t~string40.offset, 1);call write~init~int(77, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(101, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(116, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(104, #t~string40.base, 4 + #t~string40.offset, 1);call write~init~int(58, #t~string40.base, 5 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 6 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string42.base, #t~string42.offset, 1);call write~init~int(82, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(73, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(84, #t~string42.base, 3 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 4 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string44.base, #t~string44.offset, 1);call write~init~int(75, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 2 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string46.base, #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 1 + #t~string46.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(21);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(30);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(9);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 694#L-1 havoc main_#res;havoc main_#t~ret47, main_~retValue_acc~10, main_~tmp~8;havoc main_~retValue_acc~10;havoc main_~tmp~8; 695#L67 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 796#L75 main_#t~ret47 := valid_product_#res;main_~tmp~8 := main_#t~ret47;havoc main_#t~ret47; 797#L663 assume 0 != main_~tmp~8; 814#L639 ~methAndRunningLastTime~0 := 0; 815#L443 havoc test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 934#L454-1 [2020-11-29 19:23:05,581 INFO L796 eck$LassoCheckResult]: Loop: 934#L454-1 assume !false; 1051#L370 assume test_~splverifierCounter~0 < 4; 937#L371 test_~tmp~6 := test_#t~nondet31;havoc test_#t~nondet31; 838#L379 assume !(0 != test_~tmp~6); 837#L379-1 test_~tmp___0~2 := test_#t~nondet32;havoc test_#t~nondet32; 778#L389 assume !(0 != test_~tmp___0~2); 766#L389-1 test_~tmp___2~0 := test_#t~nondet33;havoc test_#t~nondet33; 767#L399 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 835#L407-1 assume !(0 != ~pumpRunning~0); 717#L100 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret10, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 884#L184 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret9, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 1099#L158-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret8, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 1062#L132-3 assume !(0 == ~pumpRunning~0); 1057#L107 havoc __utac_acc__Specification2_spec__2_#t~ret35, __utac_acc__Specification2_spec__2_#t~ret36, __utac_acc__Specification2_spec__2_~tmp~7, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~7;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 1056#L520-5 __utac_acc__Specification2_spec__2_#t~ret35 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~7 := __utac_acc__Specification2_spec__2_#t~ret35;havoc __utac_acc__Specification2_spec__2_#t~ret35; 1054#L454 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7);~methAndRunningLastTime~0 := 0; 934#L454-1 [2020-11-29 19:23:05,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:23:05,583 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-11-29 19:23:05,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:23:05,583 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950103981] [2020-11-29 19:23:05,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:23:05,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:23:05,699 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:23:05,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:23:05,793 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:23:05,812 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:23:05,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:23:05,813 INFO L82 PathProgramCache]: Analyzing trace with hash -407199799, now seen corresponding path program 1 times [2020-11-29 19:23:05,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:23:05,814 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359117467] [2020-11-29 19:23:05,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:23:05,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:23:05,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:23:05,839 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359117467] [2020-11-29 19:23:05,839 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:23:05,839 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:23:05,840 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688756682] [2020-11-29 19:23:05,840 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 19:23:05,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:23:05,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:23:05,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:23:05,842 INFO L87 Difference]: Start difference. First operand 433 states and 643 transitions. cyclomatic complexity: 213 Second operand 3 states. [2020-11-29 19:23:06,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:23:06,087 INFO L93 Difference]: Finished difference Result 432 states and 611 transitions. [2020-11-29 19:23:06,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:23:06,088 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 432 states and 611 transitions. [2020-11-29 19:23:06,097 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 299 [2020-11-29 19:23:06,107 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 432 states to 432 states and 611 transitions. [2020-11-29 19:23:06,107 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 432 [2020-11-29 19:23:06,110 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 432 [2020-11-29 19:23:06,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 432 states and 611 transitions. [2020-11-29 19:23:06,120 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:23:06,120 INFO L691 BuchiCegarLoop]: Abstraction has 432 states and 611 transitions. [2020-11-29 19:23:06,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states and 611 transitions. [2020-11-29 19:23:06,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 432. [2020-11-29 19:23:06,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 432 states. [2020-11-29 19:23:06,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 611 transitions. [2020-11-29 19:23:06,152 INFO L714 BuchiCegarLoop]: Abstraction has 432 states and 611 transitions. [2020-11-29 19:23:06,152 INFO L594 BuchiCegarLoop]: Abstraction has 432 states and 611 transitions. [2020-11-29 19:23:06,152 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 19:23:06,152 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 432 states and 611 transitions. [2020-11-29 19:23:06,156 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 299 [2020-11-29 19:23:06,157 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:23:06,157 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:23:06,158 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:23:06,159 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:23:06,159 INFO L794 eck$LassoCheckResult]: Stem: 1748#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~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(13);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string40.base, #t~string40.offset, 1);call write~init~int(77, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(101, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(116, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(104, #t~string40.base, 4 + #t~string40.offset, 1);call write~init~int(58, #t~string40.base, 5 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 6 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string42.base, #t~string42.offset, 1);call write~init~int(82, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(73, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(84, #t~string42.base, 3 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 4 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string44.base, #t~string44.offset, 1);call write~init~int(75, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 2 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string46.base, #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 1 + #t~string46.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(21);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(30);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(9);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 1563#L-1 havoc main_#res;havoc main_#t~ret47, main_~retValue_acc~10, main_~tmp~8;havoc main_~retValue_acc~10;havoc main_~tmp~8; 1564#L67 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 1667#L75 main_#t~ret47 := valid_product_#res;main_~tmp~8 := main_#t~ret47;havoc main_#t~ret47; 1692#L663 assume 0 != main_~tmp~8; 1712#L639 ~methAndRunningLastTime~0 := 0; 1713#L443 havoc test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1756#L454-1 [2020-11-29 19:23:06,160 INFO L796 eck$LassoCheckResult]: Loop: 1756#L454-1 assume !false; 1810#L370 assume test_~splverifierCounter~0 < 4; 1809#L371 test_~tmp~6 := test_#t~nondet31;havoc test_#t~nondet31; 1787#L379 assume !(0 != test_~tmp~6); 1786#L379-1 test_~tmp___0~2 := test_#t~nondet32;havoc test_#t~nondet32; 1782#L389 assume !(0 != test_~tmp___0~2); 1781#L389-1 test_~tmp___2~0 := test_#t~nondet33;havoc test_#t~nondet33; 1759#L399 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1761#L407-1 assume !(0 != ~pumpRunning~0); 1673#L100 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret10, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 1674#L184 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret9, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 1767#L158-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret8, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 1753#L132-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret29, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 1587#L560-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 1588#L565-3 isHighWaterLevel_#t~ret29 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret29;havoc isHighWaterLevel_#t~ret29; 1659#L303-9 assume !(0 != isHighWaterLevel_~tmp~4);isHighWaterLevel_~tmp___0~0 := 1; 1675#L303-11 isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; 1660#L309-3 processEnvironment__wrappee__highWaterSensor_#t~ret8 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret8;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8; 1578#L136-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 1579#L107 havoc __utac_acc__Specification2_spec__2_#t~ret35, __utac_acc__Specification2_spec__2_#t~ret36, __utac_acc__Specification2_spec__2_~tmp~7, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~7;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 1797#L520-5 __utac_acc__Specification2_spec__2_#t~ret35 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~7 := __utac_acc__Specification2_spec__2_#t~ret35;havoc __utac_acc__Specification2_spec__2_#t~ret35; 1798#L454 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7);~methAndRunningLastTime~0 := 0; 1756#L454-1 [2020-11-29 19:23:06,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:23:06,161 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2020-11-29 19:23:06,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:23:06,161 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631302388] [2020-11-29 19:23:06,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:23:06,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:23:06,215 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:23:06,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:23:06,279 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:23:06,309 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:23:06,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:23:06,311 INFO L82 PathProgramCache]: Analyzing trace with hash -1236648393, now seen corresponding path program 1 times [2020-11-29 19:23:06,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:23:06,312 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886661312] [2020-11-29 19:23:06,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:23:06,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:23:06,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:23:06,367 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886661312] [2020-11-29 19:23:06,367 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:23:06,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 19:23:06,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569842320] [2020-11-29 19:23:06,368 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 19:23:06,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:23:06,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 19:23:06,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:23:06,369 INFO L87 Difference]: Start difference. First operand 432 states and 611 transitions. cyclomatic complexity: 182 Second operand 4 states. [2020-11-29 19:23:06,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:23:06,599 INFO L93 Difference]: Finished difference Result 839 states and 1161 transitions. [2020-11-29 19:23:06,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 19:23:06,600 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 839 states and 1161 transitions. [2020-11-29 19:23:06,611 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 586 [2020-11-29 19:23:06,621 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 839 states to 839 states and 1161 transitions. [2020-11-29 19:23:06,622 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 839 [2020-11-29 19:23:06,623 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 839 [2020-11-29 19:23:06,624 INFO L73 IsDeterministic]: Start isDeterministic. Operand 839 states and 1161 transitions. [2020-11-29 19:23:06,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:23:06,626 INFO L691 BuchiCegarLoop]: Abstraction has 839 states and 1161 transitions. [2020-11-29 19:23:06,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 839 states and 1161 transitions. [2020-11-29 19:23:06,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 839 to 468. [2020-11-29 19:23:06,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 468 states. [2020-11-29 19:23:06,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 647 transitions. [2020-11-29 19:23:06,649 INFO L714 BuchiCegarLoop]: Abstraction has 468 states and 647 transitions. [2020-11-29 19:23:06,649 INFO L594 BuchiCegarLoop]: Abstraction has 468 states and 647 transitions. [2020-11-29 19:23:06,649 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-29 19:23:06,649 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 468 states and 647 transitions. [2020-11-29 19:23:06,654 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 323 [2020-11-29 19:23:06,654 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:23:06,654 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:23:06,656 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:23:06,656 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:23:06,656 INFO L794 eck$LassoCheckResult]: Stem: 3066#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~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(13);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string40.base, #t~string40.offset, 1);call write~init~int(77, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(101, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(116, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(104, #t~string40.base, 4 + #t~string40.offset, 1);call write~init~int(58, #t~string40.base, 5 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 6 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string42.base, #t~string42.offset, 1);call write~init~int(82, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(73, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(84, #t~string42.base, 3 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 4 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string44.base, #t~string44.offset, 1);call write~init~int(75, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 2 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string46.base, #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 1 + #t~string46.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(21);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(30);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(9);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 2844#L-1 havoc main_#res;havoc main_#t~ret47, main_~retValue_acc~10, main_~tmp~8;havoc main_~retValue_acc~10;havoc main_~tmp~8; 2845#L67 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 2972#L75 main_#t~ret47 := valid_product_#res;main_~tmp~8 := main_#t~ret47;havoc main_#t~ret47; 2997#L663 assume 0 != main_~tmp~8; 3024#L639 ~methAndRunningLastTime~0 := 0; 3025#L443 havoc test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 3069#L454-1 [2020-11-29 19:23:06,657 INFO L796 eck$LassoCheckResult]: Loop: 3069#L454-1 assume !false; 3175#L370 assume test_~splverifierCounter~0 < 4; 3174#L371 test_~tmp~6 := test_#t~nondet31;havoc test_#t~nondet31; 3173#L379 assume !(0 != test_~tmp~6); 3171#L379-1 test_~tmp___0~2 := test_#t~nondet32;havoc test_#t~nondet32; 3170#L389 assume !(0 != test_~tmp___0~2); 3168#L389-1 test_~tmp___2~0 := test_#t~nondet33;havoc test_#t~nondet33; 3072#L399 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 3074#L407-1 assume !(0 != ~pumpRunning~0); 3130#L100 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret10, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 3163#L184 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret9, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 3156#L158-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret8, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 3161#L132-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret29, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 2872#L560-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 2873#L565-3 isHighWaterLevel_#t~ret29 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret29;havoc isHighWaterLevel_#t~ret29; 2958#L303-9 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~0 := 0; 2978#L303-11 isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; 2959#L309-3 processEnvironment__wrappee__highWaterSensor_#t~ret8 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret8;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8; 2863#L136-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 2864#L107 havoc __utac_acc__Specification2_spec__2_#t~ret35, __utac_acc__Specification2_spec__2_#t~ret36, __utac_acc__Specification2_spec__2_~tmp~7, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~7;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 3181#L520-5 __utac_acc__Specification2_spec__2_#t~ret35 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~7 := __utac_acc__Specification2_spec__2_#t~ret35;havoc __utac_acc__Specification2_spec__2_#t~ret35; 3179#L454 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7);~methAndRunningLastTime~0 := 0; 3069#L454-1 [2020-11-29 19:23:06,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:23:06,658 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2020-11-29 19:23:06,658 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:23:06,659 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946328594] [2020-11-29 19:23:06,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:23:06,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:23:06,703 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:23:06,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:23:06,773 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:23:06,801 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:23:06,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:23:06,802 INFO L82 PathProgramCache]: Analyzing trace with hash 1283311541, now seen corresponding path program 1 times [2020-11-29 19:23:06,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:23:06,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106022446] [2020-11-29 19:23:06,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:23:06,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:23:06,815 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:23:06,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:23:06,821 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:23:06,826 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:23:06,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:23:06,827 INFO L82 PathProgramCache]: Analyzing trace with hash 416127099, now seen corresponding path program 1 times [2020-11-29 19:23:06,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:23:06,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082289569] [2020-11-29 19:23:06,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:23:06,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:23:06,883 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:23:06,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:23:06,920 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:23:06,940 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:23:07,121 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2020-11-29 19:24:53,958 WARN L193 SmtUtils]: Spent 1.78 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-11-29 19:26:09,009 WARN L193 SmtUtils]: Spent 1.25 m on a formula simplification that was a NOOP. DAG size: 435 [2020-11-29 19:26:09,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 07:26:09 BoogieIcfgContainer [2020-11-29 19:26:09,648 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 19:26:09,649 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:26:09,649 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:26:09,649 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:26:09,650 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:23:04" (3/4) ... [2020-11-29 19:26:09,653 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 19:26:09,743 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3ba9c603-7be2-4014-99c0-17a443cb99e2/bin/uautomizer/witness.graphml [2020-11-29 19:26:09,744 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:26:09,746 INFO L168 Benchmark]: Toolchain (without parser) took 188682.40 ms. Allocated memory was 102.8 MB in the beginning and 151.0 MB in the end (delta: 48.2 MB). Free memory was 71.9 MB in the beginning and 112.9 MB in the end (delta: -41.0 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:26:09,748 INFO L168 Benchmark]: CDTParser took 0.98 ms. Allocated memory is still 83.9 MB. Free memory was 40.2 MB in the beginning and 40.2 MB in the end (delta: 75.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:26:09,749 INFO L168 Benchmark]: CACSL2BoogieTranslator took 772.77 ms. Allocated memory is still 102.8 MB. Free memory was 71.3 MB in the beginning and 66.7 MB in the end (delta: 4.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:26:09,750 INFO L168 Benchmark]: Boogie Procedure Inliner took 163.85 ms. Allocated memory is still 102.8 MB. Free memory was 66.7 MB in the beginning and 61.5 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:26:09,751 INFO L168 Benchmark]: Boogie Preprocessor took 136.98 ms. Allocated memory is still 102.8 MB. Free memory was 61.5 MB in the beginning and 57.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:26:09,752 INFO L168 Benchmark]: RCFGBuilder took 2155.28 ms. Allocated memory is still 102.8 MB. Free memory was 57.3 MB in the beginning and 51.2 MB in the end (delta: 6.1 MB). Peak memory consumption was 35.6 MB. Max. memory is 16.1 GB. [2020-11-29 19:26:09,753 INFO L168 Benchmark]: BuchiAutomizer took 185344.47 ms. Allocated memory was 102.8 MB in the beginning and 151.0 MB in the end (delta: 48.2 MB). Free memory was 51.2 MB in the beginning and 115.0 MB in the end (delta: -63.8 MB). Peak memory consumption was 70.3 MB. Max. memory is 16.1 GB. [2020-11-29 19:26:09,754 INFO L168 Benchmark]: Witness Printer took 95.19 ms. Allocated memory is still 151.0 MB. Free memory was 115.0 MB in the beginning and 112.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:26:09,767 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.98 ms. Allocated memory is still 83.9 MB. Free memory was 40.2 MB in the beginning and 40.2 MB in the end (delta: 75.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 772.77 ms. Allocated memory is still 102.8 MB. Free memory was 71.3 MB in the beginning and 66.7 MB in the end (delta: 4.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 163.85 ms. Allocated memory is still 102.8 MB. Free memory was 66.7 MB in the beginning and 61.5 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 136.98 ms. Allocated memory is still 102.8 MB. Free memory was 61.5 MB in the beginning and 57.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2155.28 ms. Allocated memory is still 102.8 MB. Free memory was 57.3 MB in the beginning and 51.2 MB in the end (delta: 6.1 MB). Peak memory consumption was 35.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 185344.47 ms. Allocated memory was 102.8 MB in the beginning and 151.0 MB in the end (delta: 48.2 MB). Free memory was 51.2 MB in the beginning and 115.0 MB in the end (delta: -63.8 MB). Peak memory consumption was 70.3 MB. Max. memory is 16.1 GB. * Witness Printer took 95.19 ms. Allocated memory is still 151.0 MB. Free memory was 115.0 MB in the beginning and 112.9 MB in the end (delta: 2.1 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 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 4 locations. The remainder module has 468 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 185.2s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 184.1s. Construction of modules took 0.3s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 373 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 468 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 882 SDtfs, 921 SDslu, 838 SDs, 0 SdLazy, 138 SolverSat, 62 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 369]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=18333} State at position 1 is {NULL=0, NULL=0, NULL=18333, NULL=18356, NULL=18341, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@742cc469=0, NULL=0, NULL=18338, methaneLevelCritical=0, NULL=18349, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6ae6c774=0, retValue_acc=0, NULL=0, tmp=0, NULL=18358, NULL=0, tmp___1=0, NULL=0, NULL=18354, cleanupTimeShifts=4, NULL=18343, NULL=18352, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2447d696=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4e8d2c40=70, waterLevel=1, NULL=0, NULL=18342, \result=1, head=0, pumpRunning=0, retValue_acc=1, NULL=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@67914943=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6c96ace9=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@786c457a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4755c389=0, NULL=0, NULL=0, NULL=0, tmp=1, NULL=0, NULL=18348, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@56d0f2=0, NULL=0, tmp___0=0, NULL=18339, methAndRunningLastTime=0, NULL=18360, tmp=0, head=0, tmp=0, NULL=0, NULL=0, NULL=18346, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f0276b7=0, NULL=0, NULL=0, NULL=18345, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f8214f2=0, NULL=0, tmp___0=0, NULL=0, NULL=18357, NULL=0, NULL=0, tmp=0, NULL=18359, NULL=0, systemActive=1, NULL=18337, NULL=0, retValue_acc=0, \result=0, retValue_acc=0, NULL=18334, NULL=18353, \result=0, NULL=18335, NULL=0, NULL=0, NULL=18340, NULL=18347, NULL=18355, NULL=18350, retValue_acc=1, tmp___0=0, tmp___2=70, splverifierCounter=0, NULL=0, \result=0, NULL=18351, NULL=18336, NULL=0, NULL=0, NULL=18361, NULL=0, NULL=18344, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L92] int pumpRunning = 0; [L93] int systemActive = 1; [L437] int methAndRunningLastTime ; [L477] int waterLevel = 1; [L478] int methaneLevelCritical = 0; [L580] int cleanupTimeShifts = 4; [L846] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L654] int retValue_acc ; [L655] int tmp ; [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L661] tmp = valid_product() [L663] COND TRUE \read(tmp) [L442] methAndRunningLastTime = 0 [L360] int splverifierCounter ; [L361] int tmp ; [L362] int tmp___0 ; [L363] int tmp___1 ; [L364] int tmp___2 ; [L367] splverifierCounter = 0 Loop: [L369] COND TRUE 1 [L371] COND TRUE splverifierCounter < 4 [L377] tmp = __VERIFIER_nondet_int() [L379] COND FALSE !(\read(tmp)) [L387] tmp___0 = __VERIFIER_nondet_int() [L389] COND FALSE !(\read(tmp___0)) [L397] tmp___2 = __VERIFIER_nondet_int() [L399] COND TRUE \read(tmp___2) [L351] systemActive = 1 [L100] COND FALSE !(\read(pumpRunning)) [L107] COND TRUE \read(systemActive) [L181] int tmp ; [L184] COND FALSE !(\read(pumpRunning)) [L155] int tmp ; [L158] COND FALSE !(\read(pumpRunning)) [L129] int tmp ; [L132] COND TRUE ! pumpRunning [L295] int retValue_acc ; [L296] int tmp ; [L297] int tmp___0 ; [L557] int retValue_acc ; [L560] COND TRUE waterLevel < 2 [L561] retValue_acc = 1 [L562] return (retValue_acc); [L301] tmp = isHighWaterSensorDry() [L303] COND TRUE \read(tmp) [L304] tmp___0 = 0 [L308] retValue_acc = tmp___0 [L309] return (retValue_acc); [L134] tmp = isHighWaterLevel() [L136] COND FALSE !(\read(tmp)) [L447] int tmp ; [L448] int tmp___0 ; [L516] int retValue_acc ; [L519] retValue_acc = methaneLevelCritical [L520] return (retValue_acc); [L452] tmp = isMethaneLevelCritical() [L454] COND FALSE !(\read(tmp)) [L470] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...