./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product19.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_052a38a0-a34e-4486-8782-0794ed7bffbc/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_052a38a0-a34e-4486-8782-0794ed7bffbc/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_052a38a0-a34e-4486-8782-0794ed7bffbc/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_052a38a0-a34e-4486-8782-0794ed7bffbc/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product19.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_052a38a0-a34e-4486-8782-0794ed7bffbc/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_052a38a0-a34e-4486-8782-0794ed7bffbc/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 7aede457e3cc4160f15fb079048ccf9716878c27 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.0-69874e2 [2020-12-01 15:36:07,375 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:36:07,377 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:36:07,436 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:36:07,458 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:36:07,459 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:36:07,461 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:36:07,464 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:36:07,467 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:36:07,469 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:36:07,470 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:36:07,472 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:36:07,473 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:36:07,474 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:36:07,476 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:36:07,477 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:36:07,479 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:36:07,480 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:36:07,482 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:36:07,485 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:36:07,487 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:36:07,496 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:36:07,498 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:36:07,499 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:36:07,503 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:36:07,513 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:36:07,513 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:36:07,515 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:36:07,515 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:36:07,517 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:36:07,518 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:36:07,519 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:36:07,521 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:36:07,523 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:36:07,524 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:36:07,525 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:36:07,526 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:36:07,526 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:36:07,527 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:36:07,528 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:36:07,529 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:36:07,530 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_052a38a0-a34e-4486-8782-0794ed7bffbc/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-12-01 15:36:07,556 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:36:07,557 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:36:07,558 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:36:07,558 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:36:07,558 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:36:07,559 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-12-01 15:36:07,559 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-12-01 15:36:07,559 INFO L138 SettingsManager]: * Use old map elimination=false [2020-12-01 15:36:07,559 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-12-01 15:36:07,559 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-12-01 15:36:07,560 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-12-01 15:36:07,560 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:36:07,560 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:36:07,560 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 15:36:07,560 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:36:07,561 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:36:07,561 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:36:07,561 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-12-01 15:36:07,561 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-12-01 15:36:07,561 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-12-01 15:36:07,562 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:36:07,562 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:36:07,562 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-12-01 15:36:07,562 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:36:07,562 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-12-01 15:36:07,563 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:36:07,563 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:36:07,563 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-12-01 15:36:07,563 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:36:07,564 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:36:07,564 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:36:07,564 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-12-01 15:36:07,565 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-12-01 15:36:07,565 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_052a38a0-a34e-4486-8782-0794ed7bffbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_052a38a0-a34e-4486-8782-0794ed7bffbc/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7aede457e3cc4160f15fb079048ccf9716878c27 [2020-12-01 15:36:07,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:36:07,848 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:36:07,853 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:36:07,854 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:36:07,855 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:36:07,856 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_052a38a0-a34e-4486-8782-0794ed7bffbc/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product19.cil.c [2020-12-01 15:36:07,926 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_052a38a0-a34e-4486-8782-0794ed7bffbc/bin/uautomizer/data/c3a17b248/dfb05421c3444ab58e7e07e06a9f0b95/FLAG40de17eff [2020-12-01 15:36:08,474 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:36:08,475 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_052a38a0-a34e-4486-8782-0794ed7bffbc/sv-benchmarks/c/product-lines/minepump_spec5_product19.cil.c [2020-12-01 15:36:08,493 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_052a38a0-a34e-4486-8782-0794ed7bffbc/bin/uautomizer/data/c3a17b248/dfb05421c3444ab58e7e07e06a9f0b95/FLAG40de17eff [2020-12-01 15:36:08,802 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_052a38a0-a34e-4486-8782-0794ed7bffbc/bin/uautomizer/data/c3a17b248/dfb05421c3444ab58e7e07e06a9f0b95 [2020-12-01 15:36:08,805 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:36:08,806 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:36:08,809 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:36:08,809 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:36:08,812 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:36:08,813 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:36:08" (1/1) ... [2020-12-01 15:36:08,816 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37c1f15c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:36:08, skipping insertion in model container [2020-12-01 15:36:08,816 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:36:08" (1/1) ... [2020-12-01 15:36:08,824 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:36:08,887 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:36:09,172 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:36:09,183 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:36:09,303 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:36:09,345 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:36:09,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:36:09 WrapperNode [2020-12-01 15:36:09,348 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:36:09,350 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:36:09,350 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:36:09,351 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:36:09,360 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:36:09" (1/1) ... [2020-12-01 15:36:09,387 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:36:09" (1/1) ... [2020-12-01 15:36:09,429 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:36:09,430 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:36:09,430 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:36:09,430 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:36:09,438 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:36:09" (1/1) ... [2020-12-01 15:36:09,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:36:09" (1/1) ... [2020-12-01 15:36:09,443 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:36:09" (1/1) ... [2020-12-01 15:36:09,443 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:36:09" (1/1) ... [2020-12-01 15:36:09,457 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:36:09" (1/1) ... [2020-12-01 15:36:09,478 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:36:09" (1/1) ... [2020-12-01 15:36:09,480 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:36:09" (1/1) ... [2020-12-01 15:36:09,484 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:36:09,491 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:36:09,491 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:36:09,491 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:36:09,492 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:36:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_052a38a0-a34e-4486-8782-0794ed7bffbc/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 [2020-12-01 15:36:09,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:36:09,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:36:09,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:36:09,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:36:10,518 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:36:10,520 INFO L298 CfgBuilder]: Removed 120 assume(true) statements. [2020-12-01 15:36:10,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:36:10 BoogieIcfgContainer [2020-12-01 15:36:10,522 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:36:10,524 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-12-01 15:36:10,524 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-12-01 15:36:10,528 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-12-01 15:36:10,529 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:36:10,529 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.12 03:36:08" (1/3) ... [2020-12-01 15:36:10,531 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@66fff7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 03:36:10, skipping insertion in model container [2020-12-01 15:36:10,531 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:36:10,531 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:36:09" (2/3) ... [2020-12-01 15:36:10,531 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@66fff7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 03:36:10, skipping insertion in model container [2020-12-01 15:36:10,532 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:36:10,532 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:36:10" (3/3) ... [2020-12-01 15:36:10,534 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product19.cil.c [2020-12-01 15:36:10,595 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-12-01 15:36:10,596 INFO L360 BuchiCegarLoop]: Hoare is false [2020-12-01 15:36:10,596 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-12-01 15:36:10,596 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:36:10,596 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:36:10,597 INFO L364 BuchiCegarLoop]: Difference is false [2020-12-01 15:36:10,597 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:36:10,597 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-12-01 15:36:10,617 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 86 states. [2020-12-01 15:36:10,650 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2020-12-01 15:36:10,651 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:36:10,651 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:36:10,661 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:36:10,661 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:36:10,661 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-12-01 15:36:10,662 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 86 states. [2020-12-01 15:36:10,678 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2020-12-01 15:36:10,679 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:36:10,679 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:36:10,680 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:36:10,680 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:36:10,695 INFO L794 eck$LassoCheckResult]: Stem: 30#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~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(21);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(25);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(77, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(101, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(116, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(104, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string70.base, #t~string70.offset, 1);call write~init~int(82, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(73, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(84, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 4 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(75, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 11#L-1true havoc main_#res;havoc main_#t~ret79, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7; 65#L784true havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 72#L792true main_#t~ret79 := valid_product_#res;main_~tmp~7 := main_#t~ret79;havoc main_#t~ret79; 26#L929true assume 0 != main_~tmp~7; 57#L905true ~switchedOnBeforeTS~0 := 0; 71#L803true havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 45#L824-1true [2020-12-01 15:36:10,696 INFO L796 eck$LassoCheckResult]: Loop: 45#L824-1true assume !false; 4#L58true assume test_~splverifierCounter~0 < 4; 23#L59true test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 66#L67true assume !(0 != test_~tmp~0); 64#L67-1true test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 35#L77true assume !(0 != test_~tmp___0~0); 33#L77-1true test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 15#L87true assume 0 != test_~tmp___2~0; 46#L93-1true havoc __utac_acc__Specification5_spec__2_#t~ret76;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 7#L219true __utac_acc__Specification5_spec__2_#t~ret76 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret76;havoc __utac_acc__Specification5_spec__2_#t~ret76; 43#L813true assume !(0 != ~pumpRunning~0); 73#L134true assume !(0 != ~systemActive~0); 85#L141true havoc __utac_acc__Specification5_spec__3_#t~ret77, __utac_acc__Specification5_spec__3_#t~ret78, __utac_acc__Specification5_spec__3_~tmp~6, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~6;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 76#L745true __utac_acc__Specification5_spec__3_#t~ret77 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret77;havoc __utac_acc__Specification5_spec__3_#t~ret77; 41#L824true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6); 45#L824-1true [2020-12-01 15:36:10,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:36:10,713 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-12-01 15:36:10,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:36:10,722 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108814516] [2020-12-01 15:36:10,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:36:10,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:36:10,927 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:36:11,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:36:11,054 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:36:11,119 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:36:11,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:36:11,120 INFO L82 PathProgramCache]: Analyzing trace with hash -241953449, now seen corresponding path program 1 times [2020-12-01 15:36:11,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:36:11,121 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86592299] [2020-12-01 15:36:11,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:36:11,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:36:11,149 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:36:11,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:36:11,155 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:36:11,162 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:36:11,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:36:11,178 INFO L82 PathProgramCache]: Analyzing trace with hash 1692071761, now seen corresponding path program 1 times [2020-12-01 15:36:11,179 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:36:11,179 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835732863] [2020-12-01 15:36:11,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:36:11,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:36:11,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:36:11,367 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835732863] [2020-12-01 15:36:11,368 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:36:11,368 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-01 15:36:11,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988683691] [2020-12-01 15:36:11,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:36:11,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-01 15:36:11,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:36:11,482 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 6 states. [2020-12-01 15:36:11,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:36:11,781 INFO L93 Difference]: Finished difference Result 217 states and 298 transitions. [2020-12-01 15:36:11,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-01 15:36:11,784 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 217 states and 298 transitions. [2020-12-01 15:36:11,790 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 139 [2020-12-01 15:36:11,796 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 217 states to 196 states and 277 transitions. [2020-12-01 15:36:11,797 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 196 [2020-12-01 15:36:11,800 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 196 [2020-12-01 15:36:11,801 INFO L73 IsDeterministic]: Start isDeterministic. Operand 196 states and 277 transitions. [2020-12-01 15:36:11,804 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:36:11,805 INFO L692 BuchiCegarLoop]: Abstraction has 196 states and 277 transitions. [2020-12-01 15:36:11,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states and 277 transitions. [2020-12-01 15:36:11,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 125. [2020-12-01 15:36:11,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-12-01 15:36:11,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 176 transitions. [2020-12-01 15:36:11,858 INFO L715 BuchiCegarLoop]: Abstraction has 125 states and 176 transitions. [2020-12-01 15:36:11,858 INFO L595 BuchiCegarLoop]: Abstraction has 125 states and 176 transitions. [2020-12-01 15:36:11,858 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-12-01 15:36:11,859 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 125 states and 176 transitions. [2020-12-01 15:36:11,863 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 88 [2020-12-01 15:36:11,864 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:36:11,864 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:36:11,865 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:36:11,865 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:36:11,866 INFO L794 eck$LassoCheckResult]: Stem: 362#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~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(21);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(25);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(77, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(101, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(116, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(104, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string70.base, #t~string70.offset, 1);call write~init~int(82, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(73, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(84, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 4 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(75, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 338#L-1 havoc main_#res;havoc main_#t~ret79, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7; 339#L784 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 392#L792 main_#t~ret79 := valid_product_#res;main_~tmp~7 := main_#t~ret79;havoc main_#t~ret79; 357#L929 assume 0 != main_~tmp~7; 358#L905 ~switchedOnBeforeTS~0 := 0; 387#L803 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 377#L824-1 [2020-12-01 15:36:11,867 INFO L796 eck$LassoCheckResult]: Loop: 377#L824-1 assume !false; 323#L58 assume test_~splverifierCounter~0 < 4; 324#L59 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 353#L67 assume !(0 != test_~tmp~0); 371#L67-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 368#L77 assume !(0 != test_~tmp___0~0); 366#L77-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 342#L87 assume 0 != test_~tmp___2~0; 344#L93-1 havoc __utac_acc__Specification5_spec__2_#t~ret76;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 330#L219 __utac_acc__Specification5_spec__2_#t~ret76 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret76;havoc __utac_acc__Specification5_spec__2_#t~ret76; 331#L813 assume !(0 != ~pumpRunning~0); 322#L134 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret11, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 379#L166 assume !(0 != ~pumpRunning~0); 380#L141 havoc __utac_acc__Specification5_spec__3_#t~ret77, __utac_acc__Specification5_spec__3_#t~ret78, __utac_acc__Specification5_spec__3_~tmp~6, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~6;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 395#L745 __utac_acc__Specification5_spec__3_#t~ret77 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret77;havoc __utac_acc__Specification5_spec__3_#t~ret77; 376#L824 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6); 377#L824-1 [2020-12-01 15:36:11,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:36:11,869 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-12-01 15:36:11,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:36:11,870 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169493179] [2020-12-01 15:36:11,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:36:11,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:36:11,937 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:36:11,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:36:11,987 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:36:12,003 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:36:12,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:36:12,004 INFO L82 PathProgramCache]: Analyzing trace with hash 1062384517, now seen corresponding path program 1 times [2020-12-01 15:36:12,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:36:12,004 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592775452] [2020-12-01 15:36:12,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:36:12,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:36:12,010 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:36:12,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:36:12,013 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:36:12,017 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:36:12,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:36:12,018 INFO L82 PathProgramCache]: Analyzing trace with hash 887623883, now seen corresponding path program 1 times [2020-12-01 15:36:12,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:36:12,019 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928846524] [2020-12-01 15:36:12,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:36:12,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:36:12,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:36:12,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928846524] [2020-12-01 15:36:12,121 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:36:12,121 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:36:12,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556549835] [2020-12-01 15:36:12,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:36:12,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-01 15:36:12,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:36:12,227 INFO L87 Difference]: Start difference. First operand 125 states and 176 transitions. cyclomatic complexity: 54 Second operand 5 states. [2020-12-01 15:36:12,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:36:12,414 INFO L93 Difference]: Finished difference Result 338 states and 468 transitions. [2020-12-01 15:36:12,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-01 15:36:12,415 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 338 states and 468 transitions. [2020-12-01 15:36:12,422 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 170 [2020-12-01 15:36:12,428 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 338 states to 338 states and 468 transitions. [2020-12-01 15:36:12,428 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 338 [2020-12-01 15:36:12,430 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 338 [2020-12-01 15:36:12,431 INFO L73 IsDeterministic]: Start isDeterministic. Operand 338 states and 468 transitions. [2020-12-01 15:36:12,437 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:36:12,438 INFO L692 BuchiCegarLoop]: Abstraction has 338 states and 468 transitions. [2020-12-01 15:36:12,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states and 468 transitions. [2020-12-01 15:36:12,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 243. [2020-12-01 15:36:12,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2020-12-01 15:36:12,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 331 transitions. [2020-12-01 15:36:12,462 INFO L715 BuchiCegarLoop]: Abstraction has 243 states and 331 transitions. [2020-12-01 15:36:12,463 INFO L595 BuchiCegarLoop]: Abstraction has 243 states and 331 transitions. [2020-12-01 15:36:12,463 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-12-01 15:36:12,463 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 243 states and 331 transitions. [2020-12-01 15:36:12,469 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 170 [2020-12-01 15:36:12,469 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:36:12,469 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:36:12,471 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:36:12,471 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:36:12,471 INFO L794 eck$LassoCheckResult]: Stem: 843#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~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(21);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(25);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(77, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(101, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(116, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(104, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string70.base, #t~string70.offset, 1);call write~init~int(82, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(73, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(84, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 4 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(75, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 817#L-1 havoc main_#res;havoc main_#t~ret79, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7; 818#L784 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 885#L792 main_#t~ret79 := valid_product_#res;main_~tmp~7 := main_#t~ret79;havoc main_#t~ret79; 836#L929 assume 0 != main_~tmp~7; 837#L905 ~switchedOnBeforeTS~0 := 0; 878#L803 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 865#L824-1 [2020-12-01 15:36:12,471 INFO L796 eck$LassoCheckResult]: Loop: 865#L824-1 assume !false; 804#L58 assume test_~splverifierCounter~0 < 4; 805#L59 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 832#L67 assume !(0 != test_~tmp~0); 983#L67-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 982#L77 assume !(0 != test_~tmp___0~0); 980#L77-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 979#L87 assume 0 != test_~tmp___2~0; 978#L93-1 havoc __utac_acc__Specification5_spec__2_#t~ret76;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 1007#L219 __utac_acc__Specification5_spec__2_#t~ret76 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret76;havoc __utac_acc__Specification5_spec__2_#t~ret76; 1005#L813 assume !(0 != ~pumpRunning~0); 891#L134 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret11, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 892#L166 assume !(0 != ~pumpRunning~0); 995#L141 havoc __utac_acc__Specification5_spec__3_#t~ret77, __utac_acc__Specification5_spec__3_#t~ret78, __utac_acc__Specification5_spec__3_~tmp~6, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~6;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 994#L745 __utac_acc__Specification5_spec__3_#t~ret77 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret77;havoc __utac_acc__Specification5_spec__3_#t~ret77; 993#L824 assume 2 != __utac_acc__Specification5_spec__3_~tmp~6;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 992#L219-1 __utac_acc__Specification5_spec__3_#t~ret78 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~2 := __utac_acc__Specification5_spec__3_#t~ret78;havoc __utac_acc__Specification5_spec__3_#t~ret78; 991#L828 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2); 865#L824-1 [2020-12-01 15:36:12,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:36:12,472 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2020-12-01 15:36:12,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:36:12,473 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629612398] [2020-12-01 15:36:12,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:36:12,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:36:12,546 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:36:12,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:36:12,598 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:36:12,618 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:36:12,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:36:12,619 INFO L82 PathProgramCache]: Analyzing trace with hash -1250711392, now seen corresponding path program 1 times [2020-12-01 15:36:12,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:36:12,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019745266] [2020-12-01 15:36:12,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:36:12,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:36:12,625 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:36:12,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:36:12,629 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:36:12,633 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:36:12,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:36:12,634 INFO L82 PathProgramCache]: Analyzing trace with hash -1691956122, now seen corresponding path program 1 times [2020-12-01 15:36:12,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:36:12,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195694975] [2020-12-01 15:36:12,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:36:12,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:36:12,663 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:36:12,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:36:12,690 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:36:12,706 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:36:12,821 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2020-12-01 15:37:38,544 WARN L197 SmtUtils]: Spent 1.43 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-12-01 15:38:38,304 WARN L197 SmtUtils]: Spent 59.71 s on a formula simplification that was a NOOP. DAG size: 435 [2020-12-01 15:38:38,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.12 03:38:38 BoogieIcfgContainer [2020-12-01 15:38:38,499 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-12-01 15:38:38,500 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:38:38,500 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:38:38,500 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:38:38,501 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:36:10" (3/4) ... [2020-12-01 15:38:38,503 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-12-01 15:38:38,568 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_052a38a0-a34e-4486-8782-0794ed7bffbc/bin/uautomizer/witness.graphml [2020-12-01 15:38:38,568 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:38:38,569 INFO L168 Benchmark]: Toolchain (without parser) took 149762.91 ms. Allocated memory was 100.7 MB in the beginning and 161.5 MB in the end (delta: 60.8 MB). Free memory was 73.7 MB in the beginning and 57.4 MB in the end (delta: 16.3 MB). Peak memory consumption was 76.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:38:38,570 INFO L168 Benchmark]: CDTParser took 0.81 ms. Allocated memory is still 100.7 MB. Free memory was 58.9 MB in the beginning and 58.9 MB in the end (delta: 32.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:38:38,571 INFO L168 Benchmark]: CACSL2BoogieTranslator took 540.25 ms. Allocated memory is still 100.7 MB. Free memory was 73.4 MB in the beginning and 68.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:38:38,571 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.88 ms. Allocated memory is still 100.7 MB. Free memory was 68.0 MB in the beginning and 65.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:38:38,572 INFO L168 Benchmark]: Boogie Preprocessor took 54.49 ms. Allocated memory is still 100.7 MB. Free memory was 65.0 MB in the beginning and 62.8 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:38:38,572 INFO L168 Benchmark]: RCFGBuilder took 1031.59 ms. Allocated memory was 100.7 MB in the beginning and 123.7 MB in the end (delta: 23.1 MB). Free memory was 62.5 MB in the beginning and 66.3 MB in the end (delta: -3.8 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:38:38,573 INFO L168 Benchmark]: BuchiAutomizer took 147975.18 ms. Allocated memory was 123.7 MB in the beginning and 161.5 MB in the end (delta: 37.7 MB). Free memory was 66.3 MB in the beginning and 60.5 MB in the end (delta: 5.8 MB). Peak memory consumption was 68.9 MB. Max. memory is 16.1 GB. [2020-12-01 15:38:38,574 INFO L168 Benchmark]: Witness Printer took 68.54 ms. Allocated memory is still 161.5 MB. Free memory was 60.5 MB in the beginning and 57.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:38:38,577 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.81 ms. Allocated memory is still 100.7 MB. Free memory was 58.9 MB in the beginning and 58.9 MB in the end (delta: 32.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 540.25 ms. Allocated memory is still 100.7 MB. Free memory was 73.4 MB in the beginning and 68.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 78.88 ms. Allocated memory is still 100.7 MB. Free memory was 68.0 MB in the beginning and 65.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 54.49 ms. Allocated memory is still 100.7 MB. Free memory was 65.0 MB in the beginning and 62.8 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1031.59 ms. Allocated memory was 100.7 MB in the beginning and 123.7 MB in the end (delta: 23.1 MB). Free memory was 62.5 MB in the beginning and 66.3 MB in the end (delta: -3.8 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 147975.18 ms. Allocated memory was 123.7 MB in the beginning and 161.5 MB in the end (delta: 37.7 MB). Free memory was 66.3 MB in the beginning and 60.5 MB in the end (delta: 5.8 MB). Peak memory consumption was 68.9 MB. Max. memory is 16.1 GB. * Witness Printer took 68.54 ms. Allocated memory is still 161.5 MB. Free memory was 60.5 MB in the beginning and 57.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 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 6 locations. The remainder module has 243 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 147.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 147.1s. Construction of modules took 0.2s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 166 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 243 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 278 SDtfs, 766 SDslu, 923 SDs, 0 SdLazy, 124 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 57]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=21817} State at position 1 is {NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@48460963=61, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6ece360f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@78d4cf45=0, NULL=21817, NULL=0, NULL=0, NULL=21845, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3b7e3cc6=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6dd5f996=0, tmp=1, retValue_acc=1, NULL=0, NULL=0, NULL=21832, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6bc175e4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@462d0d6c=0, NULL=0, NULL=0, NULL=21823, NULL=21841, cleanupTimeShifts=4, tmp=0, switchedOnBeforeTS=0, NULL=21839, NULL=21820, \result=0, NULL=21828, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=21835, NULL=0, tmp___0=0, NULL=0, NULL=0, NULL=21829, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=21824, \result=1, NULL=21822, head=0, pumpRunning=0, tmp___0=0, NULL=21827, NULL=21837, \result=0, NULL=21840, NULL=21844, NULL=21831, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@558e50c4=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@55bf6e4=0, NULL=0, NULL=0, NULL=21818, NULL=21833, NULL=21825, NULL=0, NULL=0, NULL=21843, retValue_acc=1, tmp___2=61, NULL=21842, splverifierCounter=0, NULL=0, NULL=0, NULL=21819, NULL=21834, NULL=21836, tmp=0, head=0, retValue_acc=0, NULL=0, NULL=0, NULL=21826, NULL=0, NULL=0, NULL=21821, NULL=0, NULL=21830, NULL=0, NULL=21838} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L122] int pumpRunning = 0; [L123] int systemActive = 1; [L472] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L670] int waterLevel = 1; [L671] int methaneLevelCritical = 0; [L797] int switchedOnBeforeTS ; [L846] int cleanupTimeShifts = 4; [L920] int retValue_acc ; [L921] int tmp ; [L788] int retValue_acc ; [L791] retValue_acc = 1 [L792] return (retValue_acc); [L927] tmp = valid_product() [L929] COND TRUE \read(tmp) [L802] switchedOnBeforeTS = 0 [L48] int splverifierCounter ; [L49] int tmp ; [L50] int tmp___0 ; [L51] int tmp___1 ; [L52] int tmp___2 ; [L55] splverifierCounter = 0 Loop: [L57] COND TRUE 1 [L59] COND TRUE splverifierCounter < 4 [L65] tmp = __VERIFIER_nondet_int() [L67] COND FALSE !(\read(tmp)) [L75] tmp___0 = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp___0)) [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND TRUE \read(tmp___2) [L215] int retValue_acc ; [L218] retValue_acc = pumpRunning [L219] return (retValue_acc); [L811] switchedOnBeforeTS = isPumpRunning() [L134] COND FALSE !(\read(pumpRunning)) [L141] COND TRUE \read(systemActive) [L163] int tmp ; [L166] COND FALSE !(\read(pumpRunning)) [L817] int tmp ; [L818] int tmp___0 ; [L741] int retValue_acc ; [L744] retValue_acc = waterLevel [L745] return (retValue_acc); [L822] tmp = getWaterLevel() [L824] COND TRUE tmp != 2 [L215] int retValue_acc ; [L218] retValue_acc = pumpRunning [L219] return (retValue_acc); [L826] tmp___0 = isPumpRunning() [L828] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...