./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product27.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_04aeaf9c-bad1-4f2f-bc92-8a5214558a7c/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_04aeaf9c-bad1-4f2f-bc92-8a5214558a7c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_04aeaf9c-bad1-4f2f-bc92-8a5214558a7c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_04aeaf9c-bad1-4f2f-bc92-8a5214558a7c/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product27.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_04aeaf9c-bad1-4f2f-bc92-8a5214558a7c/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_04aeaf9c-bad1-4f2f-bc92-8a5214558a7c/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 536f4e9bacbbdc4a60741158c51f8b2b0e9c1180 ................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:14:17,179 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:14:17,182 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:14:17,244 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:14:17,245 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:14:17,252 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:14:17,256 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:14:17,265 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:14:17,279 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:14:17,286 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:14:17,288 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:14:17,290 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:14:17,291 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:14:17,295 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:14:17,297 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:14:17,300 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:14:17,302 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:14:17,304 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:14:17,311 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:14:17,321 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:14:17,324 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:14:17,326 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:14:17,328 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:14:17,330 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:14:17,341 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:14:17,341 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:14:17,342 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:14:17,344 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:14:17,345 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:14:17,347 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:14:17,347 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:14:17,349 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:14:17,351 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:14:17,353 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:14:17,354 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:14:17,355 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:14:17,356 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:14:17,356 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:14:17,357 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:14:17,358 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:14:17,359 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:14:17,362 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_04aeaf9c-bad1-4f2f-bc92-8a5214558a7c/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 01:14:17,405 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:14:17,406 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:14:17,407 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:14:17,407 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:14:17,407 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:14:17,407 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 01:14:17,407 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 01:14:17,408 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 01:14:17,408 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 01:14:17,408 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 01:14:17,408 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 01:14:17,409 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:14:17,409 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:14:17,409 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 01:14:17,409 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:14:17,409 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:14:17,410 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:14:17,410 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 01:14:17,410 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 01:14:17,410 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 01:14:17,410 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:14:17,411 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:14:17,411 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 01:14:17,411 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:14:17,411 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 01:14:17,412 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:14:17,412 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:14:17,412 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 01:14:17,413 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:14:17,413 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:14:17,413 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:14:17,413 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 01:14:17,414 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 01:14:17,415 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_04aeaf9c-bad1-4f2f-bc92-8a5214558a7c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_04aeaf9c-bad1-4f2f-bc92-8a5214558a7c/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 536f4e9bacbbdc4a60741158c51f8b2b0e9c1180 [2020-11-30 01:14:17,741 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:14:17,778 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:14:17,781 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:14:17,783 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:14:17,784 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:14:17,785 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_04aeaf9c-bad1-4f2f-bc92-8a5214558a7c/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product27.cil.c [2020-11-30 01:14:17,899 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_04aeaf9c-bad1-4f2f-bc92-8a5214558a7c/bin/uautomizer/data/acb132d56/130993b976744ff783bc2c069c1a626d/FLAG326523cb9 [2020-11-30 01:14:18,657 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:14:18,658 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_04aeaf9c-bad1-4f2f-bc92-8a5214558a7c/sv-benchmarks/c/product-lines/minepump_spec2_product27.cil.c [2020-11-30 01:14:18,685 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_04aeaf9c-bad1-4f2f-bc92-8a5214558a7c/bin/uautomizer/data/acb132d56/130993b976744ff783bc2c069c1a626d/FLAG326523cb9 [2020-11-30 01:14:18,905 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_04aeaf9c-bad1-4f2f-bc92-8a5214558a7c/bin/uautomizer/data/acb132d56/130993b976744ff783bc2c069c1a626d [2020-11-30 01:14:18,908 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:14:18,910 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:14:18,912 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:14:18,912 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:14:18,917 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:14:18,918 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:14:18" (1/1) ... [2020-11-30 01:14:18,920 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@321876a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:14:18, skipping insertion in model container [2020-11-30 01:14:18,921 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:14:18" (1/1) ... [2020-11-30 01:14:18,929 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:14:19,019 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:14:19,385 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:14:19,397 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:14:19,520 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:14:19,569 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:14:19,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:14:19 WrapperNode [2020-11-30 01:14:19,573 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:14:19,575 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:14:19,575 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:14:19,576 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:14:19,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:14:19" (1/1) ... [2020-11-30 01:14:19,623 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:14:19" (1/1) ... [2020-11-30 01:14:19,701 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:14:19,710 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:14:19,710 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:14:19,710 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:14:19,722 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:14:19" (1/1) ... [2020-11-30 01:14:19,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:14:19" (1/1) ... [2020-11-30 01:14:19,742 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:14:19" (1/1) ... [2020-11-30 01:14:19,742 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:14:19" (1/1) ... [2020-11-30 01:14:19,754 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:14:19" (1/1) ... [2020-11-30 01:14:19,775 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:14:19" (1/1) ... [2020-11-30 01:14:19,778 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:14:19" (1/1) ... [2020-11-30 01:14:19,783 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:14:19,784 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:14:19,784 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:14:19,784 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:14:19,786 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:14:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_04aeaf9c-bad1-4f2f-bc92-8a5214558a7c/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:14:19,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:14:19,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:14:19,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:14:19,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:14:21,065 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:14:21,067 INFO L298 CfgBuilder]: Removed 108 assume(true) statements. [2020-11-30 01:14:21,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:14:21 BoogieIcfgContainer [2020-11-30 01:14:21,070 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:14:21,073 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 01:14:21,073 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 01:14:21,077 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 01:14:21,078 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:14:21,079 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 01:14:18" (1/3) ... [2020-11-30 01:14:21,081 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5076cf00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 01:14:21, skipping insertion in model container [2020-11-30 01:14:21,081 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:14:21,082 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:14:19" (2/3) ... [2020-11-30 01:14:21,082 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5076cf00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 01:14:21, skipping insertion in model container [2020-11-30 01:14:21,082 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:14:21,083 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:14:21" (3/3) ... [2020-11-30 01:14:21,085 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product27.cil.c [2020-11-30 01:14:21,143 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 01:14:21,143 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 01:14:21,144 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 01:14:21,144 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:14:21,144 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:14:21,144 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 01:14:21,145 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:14:21,145 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 01:14:21,164 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 81 states. [2020-11-30 01:14:21,194 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2020-11-30 01:14:21,194 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:14:21,194 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:14:21,204 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:14:21,205 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:14:21,206 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 01:14:21,206 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 81 states. [2020-11-30 01:14:21,213 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2020-11-30 01:14:21,214 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:14:21,214 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:14:21,215 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:14:21,216 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:14:21,222 INFO L794 eck$LassoCheckResult]: Stem: 39#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(13);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string47.base, #t~string47.offset, 1);call write~init~int(77, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(101, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(116, #t~string47.base, 3 + #t~string47.offset, 1);call write~init~int(104, #t~string47.base, 4 + #t~string47.offset, 1);call write~init~int(58, #t~string47.base, 5 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 6 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string49.base, #t~string49.offset, 1);call write~init~int(82, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(73, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(84, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 4 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(75, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string53.base, #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 1 + #t~string53.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(110, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 3 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(80, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(117, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(109, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(112, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #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(110, #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(4);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 3 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(32, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 11#L-1true havoc main_#res;havoc main_#t~ret54, main_~retValue_acc~6, main_~tmp~4;havoc main_~retValue_acc~6;havoc main_~tmp~4; 5#L738true havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 35#L746true main_#t~ret54 := valid_product_#res;main_~tmp~4 := main_#t~ret54;havoc main_#t~ret54; 63#L634true assume 0 != main_~tmp~4; 72#L606true ~methAndRunningLastTime~0 := 0; 30#L417true havoc test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 33#L428-1true [2020-11-30 01:14:21,224 INFO L796 eck$LassoCheckResult]: Loop: 33#L428-1true assume !false; 54#L660true assume test_~splverifierCounter~0 < 4; 8#L661true test_~tmp~5 := test_#t~nondet55;havoc test_#t~nondet55; 16#L669true assume !(0 != test_~tmp~5); 21#L669-1true test_~tmp___0~1 := test_#t~nondet56;havoc test_#t~nondet56; 75#L679true assume !(0 != test_~tmp___0~1); 78#L679-1true test_~tmp___2~0 := test_#t~nondet57;havoc test_#t~nondet57; 57#L689true assume 0 != test_~tmp___2~0; 31#L695-1true assume !(0 != ~pumpRunning~0); 4#L760true assume !(0 != ~systemActive~0); 10#L767true havoc __utac_acc__Specification2_spec__2_#t~ret42, __utac_acc__Specification2_spec__2_#t~ret43, __utac_acc__Specification2_spec__2_~tmp~3, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~3;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 55#L499true __utac_acc__Specification2_spec__2_#t~ret42 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~3 := __utac_acc__Specification2_spec__2_#t~ret42;havoc __utac_acc__Specification2_spec__2_#t~ret42; 28#L428true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~3);~methAndRunningLastTime~0 := 0; 33#L428-1true [2020-11-30 01:14:21,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:14:21,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-11-30 01:14:21,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:14:21,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810053669] [2020-11-30 01:14:21,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:14:21,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:14:21,662 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:14:21,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:14:21,788 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:14:21,837 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:14:21,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:14:21,840 INFO L82 PathProgramCache]: Analyzing trace with hash 11187989, now seen corresponding path program 1 times [2020-11-30 01:14:21,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:14:21,840 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521563092] [2020-11-30 01:14:21,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:14:21,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:14:21,850 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:14:21,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:14:21,856 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:14:21,864 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:14:21,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:14:21,866 INFO L82 PathProgramCache]: Analyzing trace with hash 844484495, now seen corresponding path program 1 times [2020-11-30 01:14:21,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:14:21,867 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284380823] [2020-11-30 01:14:21,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:14:21,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:14:22,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:14:22,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284380823] [2020-11-30 01:14:22,071 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:14:22,072 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 01:14:22,073 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213797868] [2020-11-30 01:14:22,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:14:22,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 01:14:22,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:14:22,217 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 6 states. [2020-11-30 01:14:22,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:14:22,714 INFO L93 Difference]: Finished difference Result 202 states and 283 transitions. [2020-11-30 01:14:22,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 01:14:22,721 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 202 states and 283 transitions. [2020-11-30 01:14:22,735 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 127 [2020-11-30 01:14:22,758 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 202 states to 181 states and 262 transitions. [2020-11-30 01:14:22,760 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 181 [2020-11-30 01:14:22,761 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 181 [2020-11-30 01:14:22,764 INFO L73 IsDeterministic]: Start isDeterministic. Operand 181 states and 262 transitions. [2020-11-30 01:14:22,766 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 01:14:22,767 INFO L691 BuchiCegarLoop]: Abstraction has 181 states and 262 transitions. [2020-11-30 01:14:22,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states and 262 transitions. [2020-11-30 01:14:22,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 115. [2020-11-30 01:14:22,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-11-30 01:14:22,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 166 transitions. [2020-11-30 01:14:22,808 INFO L714 BuchiCegarLoop]: Abstraction has 115 states and 166 transitions. [2020-11-30 01:14:22,808 INFO L594 BuchiCegarLoop]: Abstraction has 115 states and 166 transitions. [2020-11-30 01:14:22,808 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 01:14:22,808 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 115 states and 166 transitions. [2020-11-30 01:14:22,812 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 80 [2020-11-30 01:14:22,812 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:14:22,812 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:14:22,813 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:14:22,813 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:14:22,813 INFO L794 eck$LassoCheckResult]: Stem: 350#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(13);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string47.base, #t~string47.offset, 1);call write~init~int(77, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(101, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(116, #t~string47.base, 3 + #t~string47.offset, 1);call write~init~int(104, #t~string47.base, 4 + #t~string47.offset, 1);call write~init~int(58, #t~string47.base, 5 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 6 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string49.base, #t~string49.offset, 1);call write~init~int(82, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(73, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(84, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 4 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(75, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string53.base, #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 1 + #t~string53.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(110, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 3 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(80, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(117, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(109, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(112, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #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(110, #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(4);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 3 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(32, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 317#L-1 havoc main_#res;havoc main_#t~ret54, main_~retValue_acc~6, main_~tmp~4;havoc main_~retValue_acc~6;havoc main_~tmp~4; 303#L738 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 304#L746 main_#t~ret54 := valid_product_#res;main_~tmp~4 := main_#t~ret54;havoc main_#t~ret54; 346#L634 assume 0 != main_~tmp~4; 367#L606 ~methAndRunningLastTime~0 := 0; 339#L417 havoc test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 338#L428-1 [2020-11-30 01:14:22,814 INFO L796 eck$LassoCheckResult]: Loop: 338#L428-1 assume !false; 343#L660 assume test_~splverifierCounter~0 < 4; 311#L661 test_~tmp~5 := test_#t~nondet55;havoc test_#t~nondet55; 312#L669 assume !(0 != test_~tmp~5); 327#L669-1 test_~tmp___0~1 := test_#t~nondet56;havoc test_#t~nondet56; 328#L679 assume !(0 != test_~tmp___0~1); 330#L679-1 test_~tmp___2~0 := test_#t~nondet57;havoc test_#t~nondet57; 365#L689 assume 0 != test_~tmp___2~0; 334#L695-1 assume !(0 != ~pumpRunning~0); 301#L760 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret60, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 302#L792 assume !(0 != ~pumpRunning~0); 313#L767 havoc __utac_acc__Specification2_spec__2_#t~ret42, __utac_acc__Specification2_spec__2_#t~ret43, __utac_acc__Specification2_spec__2_~tmp~3, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~3;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 314#L499 __utac_acc__Specification2_spec__2_#t~ret42 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~3 := __utac_acc__Specification2_spec__2_#t~ret42;havoc __utac_acc__Specification2_spec__2_#t~ret42; 336#L428 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~3);~methAndRunningLastTime~0 := 0; 338#L428-1 [2020-11-30 01:14:22,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:14:22,815 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-11-30 01:14:22,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:14:22,815 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565099468] [2020-11-30 01:14:22,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:14:22,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:14:22,908 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:14:22,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:14:22,990 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:14:23,012 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:14:23,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:14:23,014 INFO L82 PathProgramCache]: Analyzing trace with hash 319834499, now seen corresponding path program 1 times [2020-11-30 01:14:23,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:14:23,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405365393] [2020-11-30 01:14:23,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:14:23,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:14:23,023 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:14:23,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:14:23,028 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:14:23,035 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:14:23,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:14:23,036 INFO L82 PathProgramCache]: Analyzing trace with hash 382222409, now seen corresponding path program 1 times [2020-11-30 01:14:23,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:14:23,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069587842] [2020-11-30 01:14:23,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:14:23,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:14:23,120 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:14:23,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:14:23,231 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:14:23,271 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:16:01,896 WARN L193 SmtUtils]: Spent 1.64 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-11-30 01:17:08,853 WARN L193 SmtUtils]: Spent 1.12 m on a formula simplification that was a NOOP. DAG size: 435 [2020-11-30 01:17:09,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 01:17:09 BoogieIcfgContainer [2020-11-30 01:17:09,193 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 01:17:09,194 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:17:09,194 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:17:09,194 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:17:09,195 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:14:21" (3/4) ... [2020-11-30 01:17:09,198 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-30 01:17:09,267 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_04aeaf9c-bad1-4f2f-bc92-8a5214558a7c/bin/uautomizer/witness.graphml [2020-11-30 01:17:09,267 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:17:09,269 INFO L168 Benchmark]: Toolchain (without parser) took 170358.33 ms. Allocated memory was 92.3 MB in the beginning and 121.6 MB in the end (delta: 29.4 MB). Free memory was 60.3 MB in the beginning and 45.1 MB in the end (delta: 15.2 MB). Peak memory consumption was 45.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:17:09,270 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 69.2 MB. Free memory was 31.4 MB in the beginning and 31.3 MB in the end (delta: 33.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:17:09,270 INFO L168 Benchmark]: CACSL2BoogieTranslator took 661.19 ms. Allocated memory is still 92.3 MB. Free memory was 60.0 MB in the beginning and 59.8 MB in the end (delta: 227.5 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:17:09,271 INFO L168 Benchmark]: Boogie Procedure Inliner took 134.61 ms. Allocated memory is still 92.3 MB. Free memory was 59.8 MB in the beginning and 56.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:17:09,272 INFO L168 Benchmark]: Boogie Preprocessor took 72.95 ms. Allocated memory is still 92.3 MB. Free memory was 56.7 MB in the beginning and 54.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:17:09,273 INFO L168 Benchmark]: RCFGBuilder took 1286.79 ms. Allocated memory is still 92.3 MB. Free memory was 54.7 MB in the beginning and 43.8 MB in the end (delta: 10.9 MB). Peak memory consumption was 32.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:17:09,273 INFO L168 Benchmark]: BuchiAutomizer took 168120.57 ms. Allocated memory was 92.3 MB in the beginning and 121.6 MB in the end (delta: 29.4 MB). Free memory was 43.4 MB in the beginning and 47.0 MB in the end (delta: -3.7 MB). Peak memory consumption was 53.9 MB. Max. memory is 16.1 GB. [2020-11-30 01:17:09,274 INFO L168 Benchmark]: Witness Printer took 73.47 ms. Allocated memory is still 121.6 MB. Free memory was 47.0 MB in the beginning and 45.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:17:09,278 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 69.2 MB. Free memory was 31.4 MB in the beginning and 31.3 MB in the end (delta: 33.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 661.19 ms. Allocated memory is still 92.3 MB. Free memory was 60.0 MB in the beginning and 59.8 MB in the end (delta: 227.5 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 134.61 ms. Allocated memory is still 92.3 MB. Free memory was 59.8 MB in the beginning and 56.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 72.95 ms. Allocated memory is still 92.3 MB. Free memory was 56.7 MB in the beginning and 54.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1286.79 ms. Allocated memory is still 92.3 MB. Free memory was 54.7 MB in the beginning and 43.8 MB in the end (delta: 10.9 MB). Peak memory consumption was 32.1 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 168120.57 ms. Allocated memory was 92.3 MB in the beginning and 121.6 MB in the end (delta: 29.4 MB). Free memory was 43.4 MB in the beginning and 47.0 MB in the end (delta: -3.7 MB). Peak memory consumption was 53.9 MB. Max. memory is 16.1 GB. * Witness Printer took 73.47 ms. Allocated memory is still 121.6 MB. Free memory was 47.0 MB in the beginning and 45.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 115 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 168.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 167.3s. Construction of modules took 0.3s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 66 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 115 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 105 SDtfs, 397 SDslu, 566 SDs, 0 SdLazy, 42 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s 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: 659]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=22644} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=22644, NULL=0, retValue_acc=0, NULL=22670, NULL=22666, NULL=22667, methaneLevelCritical=0, NULL=22668, NULL=22648, tmp=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3e8fe778=0, NULL=22664, tmp___1=0, NULL=22656, NULL=0, NULL=0, NULL=22655, NULL=22649, NULL=22669, cleanupTimeShifts=4, NULL=22653, NULL=22646, NULL=22657, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@d06bd=0, NULL=22663, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7edd495c=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=22658, NULL=0, NULL=22645, \result=1, head=0, pumpRunning=0, NULL=22660, \result=0, NULL=22654, tmp=1, NULL=0, NULL=22665, NULL=0, NULL=0, NULL=0, NULL=0, NULL=22650, tmp___0=0, NULL=0, NULL=0, retValue_acc=1, NULL=0, NULL=22662, NULL=0, tmp___2=59, NULL=22652, tmp___0=0, NULL=22651, splverifierCounter=0, NULL=0, methAndRunningLastTime=0, \result=0, NULL=22671, NULL=22661, NULL=22659, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@954f193=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5af21ca9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@73845e00=59, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@92d2c1e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7feb58f7=0, head=0, NULL=0, NULL=0, tmp=0, NULL=22647, NULL=0, NULL=0, tmp=0, NULL=22672} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L411] int methAndRunningLastTime ; [L456] int waterLevel = 1; [L457] int methaneLevelCritical = 0; [L545] int cleanupTimeShifts = 4; [L753] int pumpRunning = 0; [L754] int systemActive = 1; [L625] int retValue_acc ; [L626] int tmp ; [L742] int retValue_acc ; [L745] retValue_acc = 1 [L746] return (retValue_acc); [L632] tmp = valid_product() [L634] COND TRUE \read(tmp) [L416] methAndRunningLastTime = 0 [L650] int splverifierCounter ; [L651] int tmp ; [L652] int tmp___0 ; [L653] int tmp___1 ; [L654] int tmp___2 ; [L657] splverifierCounter = 0 Loop: [L659] COND TRUE 1 [L661] COND TRUE splverifierCounter < 4 [L667] tmp = __VERIFIER_nondet_int() [L669] COND FALSE !(\read(tmp)) [L677] tmp___0 = __VERIFIER_nondet_int() [L679] COND FALSE !(\read(tmp___0)) [L687] tmp___2 = __VERIFIER_nondet_int() [L689] COND TRUE \read(tmp___2) [L760] COND FALSE !(\read(pumpRunning)) [L767] COND TRUE \read(systemActive) [L789] int tmp ; [L792] COND FALSE !(\read(pumpRunning)) [L421] int tmp ; [L422] int tmp___0 ; [L495] int retValue_acc ; [L498] retValue_acc = methaneLevelCritical [L499] return (retValue_acc); [L426] tmp = isMethaneLevelCritical() [L428] COND FALSE !(\read(tmp)) [L444] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...