./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_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_580cec08-a524-4088-b868-7b9a25646b79/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_580cec08-a524-4088-b868-7b9a25646b79/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_580cec08-a524-4088-b868-7b9a25646b79/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_580cec08-a524-4088-b868-7b9a25646b79/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product19.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_580cec08-a524-4088-b868-7b9a25646b79/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_580cec08-a524-4088-b868-7b9a25646b79/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 ad44d32391aa6283f5e8433cbefa6aad81c0febf ................................................................................................................................................................................................................................................................................................................................................................................ 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 15:46:27,156 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:46:27,160 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:46:27,222 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:46:27,223 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:46:27,229 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:46:27,236 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:46:27,240 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:46:27,243 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:46:27,250 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:46:27,251 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:46:27,254 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:46:27,254 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:46:27,258 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:46:27,260 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:46:27,262 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:46:27,265 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:46:27,269 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:46:27,273 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:46:27,282 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:46:27,284 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:46:27,286 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:46:27,289 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:46:27,290 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:46:27,300 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:46:27,300 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:46:27,301 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:46:27,303 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:46:27,304 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:46:27,306 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:46:27,306 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:46:27,308 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:46:27,310 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:46:27,312 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:46:27,313 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:46:27,314 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:46:27,315 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:46:27,315 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:46:27,316 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:46:27,319 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:46:27,320 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:46:27,322 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_580cec08-a524-4088-b868-7b9a25646b79/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-12-01 15:46:27,362 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:46:27,363 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:46:27,365 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:46:27,365 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:46:27,365 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:46:27,366 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-12-01 15:46:27,366 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-12-01 15:46:27,366 INFO L138 SettingsManager]: * Use old map elimination=false [2020-12-01 15:46:27,366 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-12-01 15:46:27,367 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-12-01 15:46:27,368 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-12-01 15:46:27,368 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:46:27,368 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:46:27,369 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 15:46:27,369 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:46:27,369 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:46:27,369 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:46:27,370 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-12-01 15:46:27,370 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-12-01 15:46:27,370 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-12-01 15:46:27,370 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:46:27,371 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:46:27,371 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-12-01 15:46:27,371 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:46:27,371 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-12-01 15:46:27,372 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:46:27,372 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:46:27,372 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-12-01 15:46:27,372 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:46:27,373 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:46:27,373 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:46:27,373 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-12-01 15:46:27,375 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-12-01 15:46:27,375 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_580cec08-a524-4088-b868-7b9a25646b79/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_580cec08-a524-4088-b868-7b9a25646b79/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad44d32391aa6283f5e8433cbefa6aad81c0febf [2020-12-01 15:46:27,702 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:46:27,730 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:46:27,733 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:46:27,734 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:46:27,735 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:46:27,736 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_580cec08-a524-4088-b868-7b9a25646b79/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product19.cil.c [2020-12-01 15:46:27,815 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_580cec08-a524-4088-b868-7b9a25646b79/bin/uautomizer/data/abb94f1b1/0403c78d5a5c4b638bd636243432e94b/FLAG696626e12 [2020-12-01 15:46:28,530 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:46:28,531 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_580cec08-a524-4088-b868-7b9a25646b79/sv-benchmarks/c/product-lines/minepump_spec1_product19.cil.c [2020-12-01 15:46:28,558 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_580cec08-a524-4088-b868-7b9a25646b79/bin/uautomizer/data/abb94f1b1/0403c78d5a5c4b638bd636243432e94b/FLAG696626e12 [2020-12-01 15:46:28,783 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_580cec08-a524-4088-b868-7b9a25646b79/bin/uautomizer/data/abb94f1b1/0403c78d5a5c4b638bd636243432e94b [2020-12-01 15:46:28,786 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:46:28,789 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:46:28,804 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:46:28,804 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:46:28,808 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:46:28,810 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:46:28" (1/1) ... [2020-12-01 15:46:28,813 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bfb2ffb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:46:28, skipping insertion in model container [2020-12-01 15:46:28,814 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:46:28" (1/1) ... [2020-12-01 15:46:28,822 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:46:28,891 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:46:29,241 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:46:29,253 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:46:29,351 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:46:29,396 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:46:29,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:46:29 WrapperNode [2020-12-01 15:46:29,397 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:46:29,398 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:46:29,398 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:46:29,398 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:46:29,406 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:46:29" (1/1) ... [2020-12-01 15:46:29,447 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:46:29" (1/1) ... [2020-12-01 15:46:29,485 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:46:29,494 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:46:29,494 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:46:29,494 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:46:29,503 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:46:29" (1/1) ... [2020-12-01 15:46:29,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:46:29" (1/1) ... [2020-12-01 15:46:29,523 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:46:29" (1/1) ... [2020-12-01 15:46:29,523 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:46:29" (1/1) ... [2020-12-01 15:46:29,537 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:46:29" (1/1) ... [2020-12-01 15:46:29,552 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:46:29" (1/1) ... [2020-12-01 15:46:29,555 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:46:29" (1/1) ... [2020-12-01 15:46:29,559 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:46:29,560 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:46:29,560 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:46:29,560 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:46:29,561 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:46:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_580cec08-a524-4088-b868-7b9a25646b79/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 15:46:29,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:46:29,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:46:29,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:46:29,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:46:30,715 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:46:30,717 INFO L298 CfgBuilder]: Removed 106 assume(true) statements. [2020-12-01 15:46:30,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:46:30 BoogieIcfgContainer [2020-12-01 15:46:30,719 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:46:30,721 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-12-01 15:46:30,721 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-12-01 15:46:30,724 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-12-01 15:46:30,725 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:46:30,725 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.12 03:46:28" (1/3) ... [2020-12-01 15:46:30,727 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@34f28923 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 03:46:30, skipping insertion in model container [2020-12-01 15:46:30,727 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:46:30,727 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:46:29" (2/3) ... [2020-12-01 15:46:30,728 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@34f28923 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 03:46:30, skipping insertion in model container [2020-12-01 15:46:30,728 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:46:30,728 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:46:30" (3/3) ... [2020-12-01 15:46:30,731 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product19.cil.c [2020-12-01 15:46:30,793 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-12-01 15:46:30,793 INFO L360 BuchiCegarLoop]: Hoare is false [2020-12-01 15:46:30,793 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-12-01 15:46:30,793 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:46:30,794 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:46:30,794 INFO L364 BuchiCegarLoop]: Difference is false [2020-12-01 15:46:30,794 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:46:30,794 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-12-01 15:46:30,812 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 77 states. [2020-12-01 15:46:30,846 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2020-12-01 15:46:30,846 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:46:30,846 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:46:30,860 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-12-01 15:46:30,860 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:46:30,861 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-12-01 15:46:30,861 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 77 states. [2020-12-01 15:46:30,878 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2020-12-01 15:46:30,878 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:46:30,878 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:46:30,880 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-12-01 15:46:30,880 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:46:30,885 INFO L794 eck$LassoCheckResult]: Stem: 32#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~string10.base, #t~string10.offset := #Ultimate.allocOnStack(13);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string12.base, #t~string12.offset, 1);call write~init~int(77, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(101, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(116, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(104, #t~string12.base, 4 + #t~string12.offset, 1);call write~init~int(58, #t~string12.base, 5 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 6 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string14.base, #t~string14.offset, 1);call write~init~int(82, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(73, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(84, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 4 + #t~string14.offset, 1);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(75, #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(2);call write~init~int(41, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(21);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(21);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(25);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(25);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(13);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(80, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(117, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(109, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(112, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(32, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 8#L-1true havoc main_#res;havoc main_#t~ret55, main_~retValue_acc~8, main_~tmp~4;havoc main_~retValue_acc~8;havoc main_~tmp~4; 5#L566true havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 10#L574true main_#t~ret55 := valid_product_#res;main_~tmp~4 := main_#t~ret55;havoc main_#t~ret55; 63#L664true assume 0 != main_~tmp~4; 30#L640true havoc test_#t~nondet75, test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 50#L53-1true [2020-12-01 15:46:30,893 INFO L796 eck$LassoCheckResult]: Loop: 50#L53-1true assume !false; 16#L859true assume test_~splverifierCounter~0 < 4; 34#L860true test_~tmp~7 := test_#t~nondet75;havoc test_#t~nondet75; 38#L868true assume !(0 != test_~tmp~7); 40#L868-1true test_~tmp___0~2 := test_#t~nondet76;havoc test_#t~nondet76; 23#L878true assume !(0 != test_~tmp___0~2); 24#L878-1true test_~tmp___2~0 := test_#t~nondet77;havoc test_#t~nondet77; 4#L888true assume 0 != test_~tmp___2~0; 54#L894-1true assume !(0 != ~pumpRunning~0); 35#L688true assume !(0 != ~systemActive~0); 27#L695true havoc __utac_acc__Specification1_spec__1_#t~ret7, __utac_acc__Specification1_spec__1_#t~ret8, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 55#L129true __utac_acc__Specification1_spec__1_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret7;havoc __utac_acc__Specification1_spec__1_#t~ret7; 70#L53true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 50#L53-1true [2020-12-01 15:46:30,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:46:30,914 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-12-01 15:46:30,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:46:30,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292260208] [2020-12-01 15:46:30,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:46:31,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:46:31,215 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:46:31,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:46:31,354 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:46:31,401 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:46:31,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:46:31,416 INFO L82 PathProgramCache]: Analyzing trace with hash -1673095027, now seen corresponding path program 1 times [2020-12-01 15:46:31,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:46:31,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115143661] [2020-12-01 15:46:31,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:46:31,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:46:31,425 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:46:31,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:46:31,431 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:46:31,438 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:46:31,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:46:31,440 INFO L82 PathProgramCache]: Analyzing trace with hash 41183911, now seen corresponding path program 1 times [2020-12-01 15:46:31,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:46:31,441 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581460691] [2020-12-01 15:46:31,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:46:31,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:46:31,665 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 15:46:31,665 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581460691] [2020-12-01 15:46:31,667 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:46:31,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-01 15:46:31,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107356705] [2020-12-01 15:46:31,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:46:31,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-01 15:46:31,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:46:31,805 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 6 states. [2020-12-01 15:46:32,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:46:32,114 INFO L93 Difference]: Finished difference Result 192 states and 264 transitions. [2020-12-01 15:46:32,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-01 15:46:32,120 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 192 states and 264 transitions. [2020-12-01 15:46:32,123 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 121 [2020-12-01 15:46:32,130 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 192 states to 171 states and 243 transitions. [2020-12-01 15:46:32,131 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 171 [2020-12-01 15:46:32,132 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 171 [2020-12-01 15:46:32,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 171 states and 243 transitions. [2020-12-01 15:46:32,135 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:46:32,135 INFO L692 BuchiCegarLoop]: Abstraction has 171 states and 243 transitions. [2020-12-01 15:46:32,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states and 243 transitions. [2020-12-01 15:46:32,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 108. [2020-12-01 15:46:32,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-12-01 15:46:32,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 153 transitions. [2020-12-01 15:46:32,171 INFO L715 BuchiCegarLoop]: Abstraction has 108 states and 153 transitions. [2020-12-01 15:46:32,171 INFO L595 BuchiCegarLoop]: Abstraction has 108 states and 153 transitions. [2020-12-01 15:46:32,171 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-12-01 15:46:32,171 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 108 states and 153 transitions. [2020-12-01 15:46:32,174 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 76 [2020-12-01 15:46:32,174 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:46:32,174 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:46:32,175 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-12-01 15:46:32,175 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:46:32,176 INFO L794 eck$LassoCheckResult]: Stem: 326#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~string10.base, #t~string10.offset := #Ultimate.allocOnStack(13);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string12.base, #t~string12.offset, 1);call write~init~int(77, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(101, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(116, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(104, #t~string12.base, 4 + #t~string12.offset, 1);call write~init~int(58, #t~string12.base, 5 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 6 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string14.base, #t~string14.offset, 1);call write~init~int(82, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(73, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(84, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 4 + #t~string14.offset, 1);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(75, #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(2);call write~init~int(41, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(21);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(21);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(25);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(25);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(13);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(80, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(117, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(109, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(112, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(32, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 299#L-1 havoc main_#res;havoc main_#t~ret55, main_~retValue_acc~8, main_~tmp~4;havoc main_~retValue_acc~8;havoc main_~tmp~4; 293#L566 havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 294#L574 main_#t~ret55 := valid_product_#res;main_~tmp~4 := main_#t~ret55;havoc main_#t~ret55; 302#L664 assume 0 != main_~tmp~4; 323#L640 havoc test_#t~nondet75, test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 324#L53-1 [2020-12-01 15:46:32,176 INFO L796 eck$LassoCheckResult]: Loop: 324#L53-1 assume !false; 306#L859 assume test_~splverifierCounter~0 < 4; 307#L860 test_~tmp~7 := test_#t~nondet75;havoc test_#t~nondet75; 328#L868 assume !(0 != test_~tmp~7); 331#L868-1 test_~tmp___0~2 := test_#t~nondet76;havoc test_#t~nondet76; 315#L878 assume !(0 != test_~tmp___0~2); 316#L878-1 test_~tmp___2~0 := test_#t~nondet77;havoc test_#t~nondet77; 290#L888 assume 0 != test_~tmp___2~0; 291#L894-1 assume !(0 != ~pumpRunning~0); 320#L688 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret56, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 308#L720 assume !(0 != ~pumpRunning~0); 301#L695 havoc __utac_acc__Specification1_spec__1_#t~ret7, __utac_acc__Specification1_spec__1_#t~ret8, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 321#L129 __utac_acc__Specification1_spec__1_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret7;havoc __utac_acc__Specification1_spec__1_#t~ret7; 344#L53 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 324#L53-1 [2020-12-01 15:46:32,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:46:32,177 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-12-01 15:46:32,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:46:32,177 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052159486] [2020-12-01 15:46:32,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:46:32,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:46:32,231 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:46:32,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:46:32,281 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:46:32,300 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:46:32,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:46:32,301 INFO L82 PathProgramCache]: Analyzing trace with hash -353331267, now seen corresponding path program 1 times [2020-12-01 15:46:32,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:46:32,302 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820569400] [2020-12-01 15:46:32,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:46:32,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:46:32,307 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:46:32,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:46:32,311 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:46:32,316 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:46:32,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:46:32,317 INFO L82 PathProgramCache]: Analyzing trace with hash 1249708259, now seen corresponding path program 1 times [2020-12-01 15:46:32,317 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:46:32,317 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249840932] [2020-12-01 15:46:32,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:46:32,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:46:32,363 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:46:32,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:46:32,408 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:46:32,428 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:48:07,247 WARN L197 SmtUtils]: Spent 1.58 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-12-01 15:49:05,394 WARN L197 SmtUtils]: Spent 58.09 s on a formula simplification that was a NOOP. DAG size: 433 [2020-12-01 15:49:05,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.12 03:49:05 BoogieIcfgContainer [2020-12-01 15:49:05,673 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-12-01 15:49:05,673 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:49:05,673 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:49:05,674 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:49:05,674 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:46:30" (3/4) ... [2020-12-01 15:49:05,677 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-12-01 15:49:05,728 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_580cec08-a524-4088-b868-7b9a25646b79/bin/uautomizer/witness.graphml [2020-12-01 15:49:05,736 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:49:05,740 INFO L168 Benchmark]: Toolchain (without parser) took 156947.88 ms. Allocated memory was 94.4 MB in the beginning and 167.8 MB in the end (delta: 73.4 MB). Free memory was 65.5 MB in the beginning and 87.9 MB in the end (delta: -22.4 MB). Peak memory consumption was 49.6 MB. Max. memory is 16.1 GB. [2020-12-01 15:49:05,742 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 94.4 MB. Free memory is still 51.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:49:05,743 INFO L168 Benchmark]: CACSL2BoogieTranslator took 593.48 ms. Allocated memory is still 94.4 MB. Free memory was 65.3 MB in the beginning and 62.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:49:05,744 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.20 ms. Allocated memory is still 94.4 MB. Free memory was 62.2 MB in the beginning and 59.0 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:49:05,745 INFO L168 Benchmark]: Boogie Preprocessor took 65.12 ms. Allocated memory is still 94.4 MB. Free memory was 59.0 MB in the beginning and 56.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:49:05,746 INFO L168 Benchmark]: RCFGBuilder took 1160.03 ms. Allocated memory was 94.4 MB in the beginning and 123.7 MB in the end (delta: 29.4 MB). Free memory was 56.9 MB in the beginning and 66.6 MB in the end (delta: -9.7 MB). Peak memory consumption was 21.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:49:05,747 INFO L168 Benchmark]: BuchiAutomizer took 154952.19 ms. Allocated memory was 123.7 MB in the beginning and 167.8 MB in the end (delta: 44.0 MB). Free memory was 66.6 MB in the beginning and 90.0 MB in the end (delta: -23.4 MB). Peak memory consumption was 70.7 MB. Max. memory is 16.1 GB. [2020-12-01 15:49:05,749 INFO L168 Benchmark]: Witness Printer took 63.38 ms. Allocated memory is still 167.8 MB. Free memory was 90.0 MB in the beginning and 87.9 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:49:05,754 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 94.4 MB. Free memory is still 51.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 593.48 ms. Allocated memory is still 94.4 MB. Free memory was 65.3 MB in the beginning and 62.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 94.20 ms. Allocated memory is still 94.4 MB. Free memory was 62.2 MB in the beginning and 59.0 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 65.12 ms. Allocated memory is still 94.4 MB. Free memory was 59.0 MB in the beginning and 56.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1160.03 ms. Allocated memory was 94.4 MB in the beginning and 123.7 MB in the end (delta: 29.4 MB). Free memory was 56.9 MB in the beginning and 66.6 MB in the end (delta: -9.7 MB). Peak memory consumption was 21.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 154952.19 ms. Allocated memory was 123.7 MB in the beginning and 167.8 MB in the end (delta: 44.0 MB). Free memory was 66.6 MB in the beginning and 90.0 MB in the end (delta: -23.4 MB). Peak memory consumption was 70.7 MB. Max. memory is 16.1 GB. * Witness Printer took 63.38 ms. Allocated memory is still 167.8 MB. Free memory was 90.0 MB in the beginning and 87.9 MB in the end (delta: 2.1 MB). There was no memory consumed. 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 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 108 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 154.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 154.3s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 63 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 108 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 98 SDtfs, 370 SDslu, 524 SDs, 0 SdLazy, 42 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 858]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=20657} State at position 1 is {NULL=0, retValue_acc=0, NULL=0, NULL=20659, NULL=0, NULL=0, NULL=20657, NULL=20685, NULL=0, NULL=20680, NULL=0, NULL=0, NULL=20658, NULL=20661, retValue_acc=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ec8f4c6=0, methaneLevelCritical=0, NULL=20671, NULL=0, NULL=0, NULL=20674, tmp=0, NULL=0, tmp___1=0, NULL=0, NULL=0, tmp___0=0, NULL=20672, cleanupTimeShifts=4, NULL=20682, NULL=20668, NULL=20670, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@67f97190=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@76f5d900=62, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4c5f47ca=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4970dab4=0, systemActive=1, waterLevel=1, NULL=20665, NULL=0, NULL=0, NULL=0, NULL=0, NULL=20667, NULL=0, NULL=20684, NULL=0, NULL=20662, \result=1, NULL=20669, head=0, pumpRunning=0, NULL=20677, \result=0, tmp=1, NULL=0, NULL=0, NULL=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@602ab941=0, NULL=20681, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@759bce0d=0, NULL=20679, NULL=20675, retValue_acc=1, NULL=0, NULL=0, NULL=20663, tmp___2=62, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f03b998=0, \result=0, NULL=20676, NULL=20664, NULL=20678, head=0, tmp=0, NULL=0, NULL=0, NULL=20666, NULL=20673, NULL=0, NULL=20683, NULL=20660} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L86] int waterLevel = 1; [L87] int methaneLevelCritical = 0; [L344] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L579] int cleanupTimeShifts = 4; [L681] int pumpRunning = 0; [L682] int systemActive = 1; [L655] int retValue_acc ; [L656] int tmp ; [L570] int retValue_acc ; [L573] retValue_acc = 1 [L574] return (retValue_acc); [L662] tmp = valid_product() [L664] COND TRUE \read(tmp) [L849] int splverifierCounter ; [L850] int tmp ; [L851] int tmp___0 ; [L852] int tmp___1 ; [L853] int tmp___2 ; [L856] splverifierCounter = 0 Loop: [L858] COND TRUE 1 [L860] COND TRUE splverifierCounter < 4 [L866] tmp = __VERIFIER_nondet_int() [L868] COND FALSE !(\read(tmp)) [L876] tmp___0 = __VERIFIER_nondet_int() [L878] COND FALSE !(\read(tmp___0)) [L886] tmp___2 = __VERIFIER_nondet_int() [L888] COND TRUE \read(tmp___2) [L688] COND FALSE !(\read(pumpRunning)) [L695] COND TRUE \read(systemActive) [L717] int tmp ; [L720] COND FALSE !(\read(pumpRunning)) [L46] int tmp ; [L47] int tmp___0 ; [L125] int retValue_acc ; [L128] retValue_acc = methaneLevelCritical [L129] return (retValue_acc); [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...